Miata alternator belt squeal This gets old pretty quick. If I give a little gas, it does go away for a brief second before coming back. All it takes is a little bit of load on the alternator to shift it just enough to squeal. MX-5 Miata Forum > NA/NB (1990-2005) Miata > NA (1990-1997) General Discussion > Thermostat sweat resolved, Alternator Belt squeal; still at it. The squeal starts as soon as I start moving until I'm over 4000rpm, at which point the lights come back to full brightness. I recently had to change bolt my alternator and my power steering belts, it’s been probably 3 months and 3k miles. I noticed the AC belt is squealing today. I have ordered a new gasket, and in the meantime did Belt squeal has always been the alternator belt for me. ; 03 6sp retired. Give the adjuster a turn and see if the squeal stops. At least in my head the slight MX-5 Miata Forum > NA/NB (1990-2005) Miata > NB (1999-2005) General discussion > Totally forgot. Turned out to be the alternator belt, so I would check the tension on both belts. Does it about every 1 out of 10 times I start it. Do I've been chasing a squeal in my 99. I bought the car from the PO who had lost the alt/wp belt and overheated the car. ) On my '99 with 280k I'm hearing an intermittent squeal from the engine, sounds like a belt but it comes & goes. I don’t notice any noise during cold starts or other times when driving. Recently, the belt started to squeal occasionally, usually for a few seconds at start-up. m. ;) Tomterrific 15th May 2004, 11:39 I agree it is most likely a belt but there is a slim chance it could be a slight vacuum leak. If either the headlights, or the blower fan is on when you start the car, the alternator belt squeals until you reduce the load on the alternator by turning off The problem needing a solution: Insane death-chirp from belt (or bearing) squeal on Alternator The Background: The water pump went (in a bad way, bits of bearing coming out around the front shaft) The pully was wobbly, lots of stress on the alternator, etc. So bad that the new belt My 93 with the stock 1. I don't believe this is the belt slipping. It’s strange to me. I bought a new, correct belt and now it is tight with the adjustment Occasional belt squeal NB (1999-2005) General discussion I've been hearing what sounds like a belt squeal occasionally when I start up the Miata. just under 1/2" deflection with 22lbs(10Kg) force down in the middle of the top run. Start it up and the squeal can be heard a mile away. Alternator pulley gets really hot quick and some black powder is building up on the face of the alternator. Can the extra load on the alternator cause the belt [Archive] Alternator belt squeal NA (1990-1997) General Discussion My 90 belt was intermittently squealing and when I checked it, the tensioner was against the stop. It does need to be a lot tighter than you'd think, but there is a narrow alternator belt help please :) NA (1990-1997) General Discussion There is no starter belt. Don't just wrench it down, do it bit by bit, testing in between. So this should be very simple. Tightening the adjuster has always rectified the issue. I do run the A/C and P/S belt just loose enough it chirps when the A/C cycles though. call Steve at Planet Miata and get a new block and This brought me to the conclusion that it was the alternator belt that actually needed tightening. Use a degreaser or solvent (I use lacquer thinner, others may Blower Fan/Belt Squeal NA (1990-1997) General Discussion NA (1990-1997) General Discussion Discussions about the first generation MX-5 Miata. MX-5 Miata Forum > NA/NB (1990-2005) Miata > NB (1999-2005) General discussion > Alternator belt squeal PDA View Full Version : Alternator belt squeal twoslices 27th December 2015, 15:00 Mostly prominent when starting Alternator belt squeal NA (1990-1997) General Discussion NA (1990-1997) General Discussion Discussions about the first generation MX-5 Miata. It has too replenish the charge that the starter just pulled out of the battery. It sounds like it is coming from the right front passenger side. It has been doing this for several months. Yes, both top and bottom bolts holding the Alternator Belt or Pulley Issue NB (1999-2005) General discussion Remember Me? Join us now! Site Navigation Help/Rules Calendar Help/Rules Calendar NB (1999-2005) General discussion MX-5 Miata Forum > NA/NB (1990-2005) Miata > NA (1990-1997) General Discussion > A/C and steering pump belt squeal. Click Had the same problem. Most often the alternator belt. Belt squeal and OEM belts NB (1999-2005) General discussion Remember Me? Join us now! Site Navigation Help/Rules Calendar Belt Squeal Finally Stopped! NB (1999-2005) General discussion I replaced both the A\C,Power steering belt and the alternator belt at the beginning of summer and after they stretched I got a squealing noise. There is a belt that drives the alternator, and another that drives the PS pump, water pump, etc. Hatchracket 4th October After I replaced the timing belt/drive belts on my 99 I had the alternator belt a tad loose so that it'd squeal for a good 10-15 seconds during cold startup. Intermittent seizing 3-Belts are not tightened properly (done by local Slave cylinder issue after clutch replacement NA (1990-1997) General Discussion NA (1990-1997) General Discussion Discussions about the first generation MX-5 Miata. Found it was the alternator belt. Seems the '02 is in need of a new alternator started to squeal horribly, and pulley was outrageously hot - so hot it actually made the belt hot. I don't know if it matters, but if it is idling and you punch it, the will squeal around 1-2K rpms and then stop. Spin the alternator with the belt off and see how the bearings This read-only message was archived from a public mail list. Took the belt to 55# and now no squeal. Anyway my cars been making a hard sqeetching noise when its cold. The battery is slightly discharged Belts are starting to squeal in cold weather. If it has squealed a lot, it might be glazed, so even a new looking Belt squeal on startup is almost always a loose alternator belt. Belt Squeal from Alternator with Heat/AC on? NA (1990-1997) General Discussion Remember Me? Join us now! Site Navigation Help/Rules Calendar Help/Rules Calendar NA (1990-1997) General Discussion I have a recurring belt squeal on my alternator belt. k. 8vvt. When I start it cold and turn on the lights or AC the belt squeals like a mofo. If I turn off the fan it seems to stop. There is periodic squealing before the failures. Reply Thread Tools Display Modes 3rd January 2011, 19:12 #1 Tritech First gear Join Date: Oct 2010 Loud Squeal While Driving NA (1990-1997) General Discussion Site Navigation NB (1999-2005) General discussion *** Sponsored by RoadSpy *** Discussions about the second generation MX-5 Miata Alt belt squeal after TB replacement NB (1999-2005) General discussion MX-5 Miata Forum > NA/NB (1990-2005) Miata > NB (1999-2005) General discussion Years ago I tightened the belt too tight on my Firebird and it wore out the water pump and alternator bearings, so I've generally kept them just tight enough not to squeal after that. 6 is starting to squeal at low RPMs. It's not every time, and it's only when I first start up the car. PDA View Full Version : Thermostat sweat resolved, Alternator Belt squeal; still at it. We just replaced the front seal so the crank pulley was clean and Im using Mazdas timing plate which is flat and doesnt affect Squeal at Start with Clutch Depressed NA (1990-1997) General Discussion Remember Me? Join us now! Site Navigation Help/Rules Calendar Help/Rules Calendar Background: The PO had the timing belt, alternator and AC belts changed 1500-2000 miles ago, at the dealer. I had horrible luck with an "OEM" Gates Well poop. I narrowed it to the alternator belt, which I finally changed out this weekend. Squealing on start up, replaced crank pulley and alternator and alternator belt NB (1999-2005) General discussion Squealing on start up, replaced crank pulley and alternator and alternator belt - MX-5 Miata Forum Water pump and tensioner were replace with timing belt change. Wh Only did this with air temps in the 60s or lower and the engine cold--no squeal on warm or hot starts regardless of air temp. Calibrate your thumb on the bathroom scales. I changed both belts a while ago and since then I get the squeal, usually only when the alternator is bogging down, like the heater is on and the rear window defroster is on. 6 engines is a flat multi-rib belt, not a V-belt. are these the correct bolts to tighten for alternator belt squeal? Reply Thread Tools Regardless of accessories the 1991 Miata has only one belt configuration to drive the alternator. Squeals for about a hundred yards down the road then stops Specmiata racer and friend said " Put Mazda belts on it, don't fool around with aftermarket beltsand don't All, I have read threads on this issue and I have eaten 2 belts now. I don't hear it when the engine Hello. 2000 NB Alternator belt squeal, but NB (1999-2005) General discussion Remember Me? Join us now! Site Navigation Help/Rules Calendar Help/Rules Verify my diagnosis: alternator belt squeal NA (1990-1997) General Discussion Remember Me? Join us now! Site Navigation Help/Rules Calendar Help/Rules Calendar NB1 mysterious belt scream NB (1999-2005) General discussion Site Navigation 2000 NB Alternator belt squeal, but NB (1999-2005) General discussion Remember Me? Join us now! Site Navigation Help/Rules Calendar Help/Rules Belt 1 meaning that I've have one of these things happening: 1-Alternator bearings going out. 2001 BRG SE #985 "The Diva" Stock(ish) 2002 Ti Gray SE #2100. I pulled into my garage and as i parked, got out something popped and coolant came pouring out. Replace belt with a slightly shorter one but clean pulleys before installing. I can drive it all day with no squeal, but Recently I have been getting some belt squeal on cold starts; it only happens first thing in the morning, or if the car has sat for a number of hours (6+). I guess we should add that to all of the removing Hey everyone, Yesterday I completed my timing belt change and the car fired right up. Of course, anytime an 01+ isn't running right- I'm fairly sure it's the alternator belt because when it is idling, the lights on the gauges dim. It only I replaced my alternator (again, but that is another story) about 6K miles ago. 8 did that. I didn't get around to tightening it for a week (boy it was embarassing) but it's Alternator belt was giving the usual squeal for 1-2 mins on startup and then going away. MX-5 Miata Forum > NA/NB (1990-2005) Miata > NB (1999-2005) General discussion > Occasional loud squeal after timing belt + water pump + accessory belt change Reply Thread Tools Display Modes 2nd May 2017, 23:36 #1 Random Belt squeal. Last edited by sureshot; 17th July 2008 at 11:42 . I tightened the belt a little over the weekend and the squeal has I'm fairly sure it's the alternator belt because when it is idling, the lights on the gauges dim. People keep tightening a glazed belt to make it not squeal I tightened the alternator belt and used belt dressing, but occasionally it will squeal really loudly on cold startup, accompanied by wispy blue smoke centered around the alternator pulley. I know the previous owner did not drive it that often, but I am driving it everyday now. bad belt squeal in the a. Car has AC but chirp is present on or off. Then, at the next oil change, I'll do one final adjustment which seems to then last the life of the belt The alternator pulley is so small that there is very little belt wraparound length on it so the belt has to be tensioned fairly tight. The water pump/alt. I've replaced the belt twice in 10K miles and a new one fixes it for a short time. Left side as oriented from the driver's position I also get a slight squeal first thing in the AM if I have left the AC button pressed (on) from the night before. However, the only time my Miata ever overheated Die Alternator Squeal Die!!! NA (1990-1997) General Discussion NA (1990-1997) General Discussion Discussions about the first generation MX-5 Miata. Why? NB (1999-2005) General discussion NB (1999-2005) General discussion *** Sponsored by RoadSpy *** Discussions about the second generation MX-5 Miata Webfoot, '90s have an alternator V-belt, not the 4 ribbed belts on 1. The alternator drags a bit, the belt squeals, gets hot, goes slack. Tighten first. I tried to tighten waterpump to alternator belt keeps breaking. Belt Squeal Finally Stopped! NB (1999-2005) General discussion I replaced both the A\C,Power steering belt and the alternator belt at the beginning of summer and after they stretched I got a squealing noise. It goes away after a few minutes of squealing. Tighten correctly, or replace and tighten. - posted in Spec Miata Garage: Just ran the devil in the dark and broke 3 alternator belts which resulted in an overheated engine. Fyi i use bando belts as ive had problems with This caused the belt to slip at startup, and under quick high revving. If you gradually My 2003 Miata alternator belt keeps failing. You tighten the belt, it works for a bit then the alternator seizes When I start it cold and turn on the lights or AC the belt squeals like a mofo. I use a Krikit belt tension tool. 07 GT 6spd Auto, black; 04 MSM VR, FM LE, Paco arms, Xidas, Thompson Oil Kit, Morim. Good suggestion on removing hose from the engine not the radiator. My dad changed the belt and adjusted the position of the alternator slightly to make the belt sit taught. Does Ac, Idle, belt squeal issues in 93NA NA (1990-1997) General Discussion Remember Me? Join us now! Site Navigation Help/Rules Calendar Help/Rules Calendar NA (1990-1997) General Discussion Sounds like the alternator. Yesterday as I pulled into my neighborhood my alternator light came on, the squeal I was hearing stopped and I had no A/C or power steering. we have had a broken one also. . I tried to tighten MX-5 Miata Forum > NA/NB (1990-2005) Miata > NA (1990-1997) General Discussion > Thermostat sweat resolved, Alternator Belt squeal; still at it. Make sure to get it to the 1/4 I get a very high pitch squeal when I start my engine. I went to go check everything out today and get a new belt on there just to figure Alternator belt is probably most common on start up to squeal since the alternator is trying to charge back up the battery drain from the starter. You will not get the belt to quiet down long term if the pulley is excessively worn. Reply With Quote 22nd October 2010, 06:11 Belt won't stop squealing NA (1990-1997) General Discussion Remember Me? Join us now! Site Navigation Help/Rules Calendar Help/Rules Alternator belt squeal can vary with electrical load & belt grip conditions like heat, moisture, wear, & tension. I recently did a NA 1. New belt and or proper tension fixes it. Reply Thread Tools Alternator belt squeal NA (1990-1997) General Discussion NA (1990-1997) General Discussion Discussions about the first generation MX-5 Miata. 2002 Hard S / MS3 Basic / SuperMiata Intake / Squaretop / RS4 Muffler / Cobalt Midpipe / JR 4-2-1 Header / Hardtop / 450/300 Bilstein Coilovers Hey guys, I had my belts replaced 2 weeks ago with Goodyear belts. I don't think it's a belt because the squeal is constant with the speed of the car and Hey everyone. 6 swap to the 1. I have replaced the battery and the alternator (both new) and im not still not charging (i made sure to buy a 1. The car runs and drivers or did run and drive but it recently isnt charging. It tends to go away, but I popped the hood and i don't see the belt being nice and tight - like the belt that wraps about the Funky engine squeal NB (1999-2005) General discussion If it isn't a new belt installed with your overhaul, replace it now and tighten to spec. You just discharged the battery with the starter load so the alternator has to resupply the battery and has a high load as soon as it starts charging. My mum's 1. Once squealing, they tend to squeal so you might have to replace them. As for belts, I'm now sold on the Goodyear Gatorback belts even over OEM. My 95 has the terminal belt squeal. I get under The PS/AC belt on the 1. New belt duly fittedok for a couple of days and then the same, but more squeal. I read through some of the previous posts regarding the belt squeal under load (headlights on, heater on) etc. (Yeah, I really put it off too Almost certainly the accesory belts. Cleaning pulleys contaminated with oil (or whatever someone used to attempt to eliminate squealing) is advised before installing the new belt. Does anyone know the reason why this I just replaced alternator today and had the exact same issue you are describing. Essentially here is the short version: 1)Battery light likes to be on 2)Belt likes to snap itself 3)have new battery and alternator installed 4)old alternator (my second) was only about 1yr old 5)have tightened the belt now to beyond I get an annoying continuous very high-pitched squeal every time I turn on the headlights or the heater. Stamped sheet metal pulleys can wear into a U groove instead of a V groove. 6 NA. Every NA Miata I have ever owned, at one point or another has has this squeal on start up. 22 lb should deflect the alternator belt about1/3rd inch. Turning them off stops the squeal or makes it quieter (if I switch the vent speed from 4 to, say, 2). 2017 RF Club, Arctic White, 6MT - Buddy club P1 - Continental That's basically the highest load the alternator will normally see so if it doesn't squeal then you should be good. My 99 has 180k+ miles and when I put the key to the 'on' position the alternator makes a slight high pitch noise that is constant. I went to the hood and looked at the belt and it seemed fine, even when I If you don't have the proper tension at the belt it might be slipping and causing the pulley to heat up, however if you have a squeal at the right tension, something else is wrong At night, when the car is idling with the headlights on, you can hear the belt starting to want to squeal (as the idle droops slightly to perhaps 650 rpm from around 800 rpm). It only I don't think the squeal when starting the engine is related to alternator output, I think it's just the belt slipping until it's settled uniformally on the alternator, waterpump, and crank pulleys. Got a 2000 Miata 1. I have tried tightening the belt down quite a few times, but it just keeps O. The PS belt is nice and taunt with just a bit of deflection. It is not loud but is noticeable when it is idling. MX-5 Miata Forum > NA/NB (1990-2005) Miata > NA (1990-1997) General Discussion > Verify my diagnosis: alternator belt squeal PDA View Full Version : Verify my diagnosis: alternator belt squeal Squeal after replacing belts NA (1990-1997) General Discussion Remember Me? Alternator & Water Pump Belt: Neutons 491-745, kg 50-76, lbs 110-167 P/S & A/C Belt: Neutons 491-588, kg 50-60, lbs 110-132 The best thing you can do is to get a tension gauge and adjust the tension in these belts according to manufacturers specs. The alternator has it's biggest load immediately after starting, which is why it will squeal when first started if the belt is too loose. Mail From: topdown (mike . 5 engine that was way worse than the Miata about keeping the alternator belt from squealing. So it's probably VERY loose. The starter is the biggest So the alternator belt on my 90 1. The problem is probably that the alternator belt is too loose. 2000 NB Alternator belt squeal, but NB (1999-2005) General discussion Remember Me? Join us now! Site Navigation Help/Rules Calendar Help/Rules All, I have read threads on this issue and I have eaten 2 belts now. My Water Pump/Alternator belt seems to be squealing and I'm having issues getting rid of it. 2001 BRG SE #985 "The Diva Miata GT 4th October 2015, 15:49 IF it's only squealing when the fans are kicking in the first thing I would test is the tension on the alternator. P0300, if you've already done the spark plugs and wires, I'd be thinking ignition coils next. HELP !!! I have a 1999 miata, and I'm in belief that the alternator might be going bad because I've replaced two snapped serpentine belts from what seems to be some kind of friction being caused at certain times of operation. You're alternator belt will probably never squeal because it's the v design. 8 a/t a/c. Also make sure there is no coolant, oil, etc on the belt itself. I have replaced the water pump the alternator and the squeal is still there. After a little bit there was an intermittent rattle which sounds like it is coming from the alternator but I don’t see any movement from the alternator or any of the other pulleys. The squeal only occurs when the Alternator is under load, mainly running the headlights. And, each time it squeals, it's making it easier to squeal again because it's getting glazed. Belt dressing contaminates the side of the belt. Does anyone know the reason why this The issue I'm now having is with the tension in the alternator belt. She tends not to start cars with any additional load (so no lights MX-5 Miata Forum > NA/NB (1990-2005) Miata > NA/NB Power Mods > Naturally aspirated > help with belt squeal when cold Reply Thread Tools Display Modes 6th November 2007, 20:09 #1 boosted180 Second gear Posts: 96 Alternator Tension Guide Bolt NB (1999-2005) General discussion Recently my car started to have a belt squeal and low voltage at idle. Butthe last three mornings, I have had a brief (2-4 seconds maybe) belt squeal sound (?) after the car has been running at 20-30mph for about 3 miles or so, and fully warmed up. This + loose belt [Archive] A/C P/S Belt squeal NB (1999-2005) General discussion MX-5 Miata Forum > NA/NB (1990-2005) Miata It's almost certainly the alternator belt. but then it turns cold, and I start the car with the heater fan on, and it'll squeal unless I Short Alternator Belt Life NA (1990-1997) General Discussion Remember Me? Join us now! Site Navigation if the belt squeals for more than a few seconds, it's glazed. Spec tension is Tight. Tighten the belt, or replace it, and see if the squeal goes away. I tested this by disconnecting the belt and starting the car without the alternator, and it did not squeal at all. which prevents belt squeal. 2001 BRG SE; #814 STR #41 Is it just me or does reading this Breaking alternator belts. So new alternator (on the basis it could have been the bearing) and another belt fitted. Reply With Quote 10th December 2023, 18:14 I just bought a 95 wotyh 100K miles, and it exhibits the exact same symptom. Which belt is responsible Squealing on start up, replaced crank pulley and alternator and alternator belt NB (1999-2005) General discussion Squealing on start up, replaced crank pulley and alternator and alternator belt - MX-5 Miata Forum As title says, I notice what sounds like a belt chirp or short squeal when turning the engine off. After some research I found that the oem v-belt is solid unlike It's either the power steering or alternator belt, which both connect to the crank pulley. my mechanic has replaced - Answered by a verified Mazda Mechanic By chatting and providing personal info, you understand and agree to That locks the alternator in place. 8 93-98 alternator that is self regulated. I picked it because it was 5 min from work and I dont have to drive to Mazda. I can drive it all day with no Belt squeal issue? NA (1990-1997) General Discussion Site Navigation I have a 91 Miata and ever since I purchased it a year ago I keep having to tighten the alternator belt every couple of months and soon thereafter replace it altogether. So I bought I just replaced alternator today and had the exact same issue you are describing. It has to be tighter than you might think. I did the same for the alternator belt. , at noon, and p. It used to happen just alittle and would go away, so I replaced the belts and it got worse. It sounds like a dying cat. But I noticed something interesting. It stretches with age and needs periodic retightening. 6 motors, needs and adjustment after a few hundred miles. Altenator is working, no P/S symptoms. Pulley alignment is That seems to work for about 500 miles, at which point I'll get a little squeal on startup, a sure sign to do another adjustment. It does not change when I turn the A/C off or on. I replaced the crank pulley and alternator and alternator belt. Spin the alternator with the belt off and see how the bearings MX-5 Miata Forum > NA/NB (1990-2005) Miata > NA (1990-1997) General Discussion > Alternator/Water Pump Belt Tension: Opinions Reply Thread Tools Display Modes 27th April 2024, 13:23 #1 MarbleCanyon Fifth gear I'm having a somewhat different problem with belt squeal from the Alternator. They ate belts all the time. Now I have 2 ideas: 1) The oil leak is getting worse and causing oil to get onto the pulley, causing the slippage; or 2) something is going bad inside, such as a water pump, causing increased resistance to Alternator belt. At this point I have about 200 miles on the Belt squeal is likely a loose belt, there's a gauge you can buy to be sure you have the proper tightness. 06 GT RIP, 3 million miles all cars life. Belt Squeal from Alternator with Heat/AC on? NA (1990-1997) General Discussion Remember Me? Join us now! Site Navigation Help/Rules Calendar Help/Rules Calendar NA (1990-1997) General Discussion I thought maybe I'd adjusted the alternator & steering belts too tight and I was getting a bearing squeal so I just loosened them and restarted the car semi cold and got the same squeal. I haven’t had any issues with squeals or anything since changing it but all of a sudden when it gets really cold outside or a little wet I have this terrible squeal. I just picked up a 96' Miata a couple weeks ago. You're first picture clearly shows that the ribbed alternator belt is one groove off on the alt pulley. Alternator pulley gets really hot quick and some black powder is building up on the face of Alternator belt squeal NA (1990-1997) General Discussion NA (1990-1997) General Discussion Discussions about the first generation MX-5 Miata. Only did it when cold. 6 is making a noise I can best describe as a "belt squeal". What sounds like a belt squeal, but isn't a belt? NA (1990-1997) General Discussion Remember Me? Join us now! Site Navigation Every belt I do now, with the exception of the V-belt on the 1. If they've never been changed, you could just go ahead and do both. And squeal will come back I'm not sure if your having the same issue but when I replaced my alternator belt with one from autozone I started getting a high pitched noise that increased with rpm. Reply With Quote Alternator belt still squealing :( NB (1999-2005) General discussion Tighten bit by bit, slowly until it stops. It goes away after 10 seconds or so. It needs to be put back on right and then tightened properly. I sprayed some water onto the AC pulley and the squeal stopped. (Also, I don’t know if I have a 91 Miata and ever since I purchased it a year ago I keep having to tighten the alternator belt every couple of months and soon thereafter replace it altogether. I had just replaced the belt a few weeks ago and thought I had it tight enough. 8 cars. Sounds like a loose or worn belt more than a failing alternator. belt is V-belt. Intermittent seizing 2-Water pump bearings going out. I can If I engage the fan for heat and the flow to the windshield, there is a squealing noise. I went to the hood and looked at the belt and it seemed fine, even when I Alternator Belt Snapped, Diagnosis? NB (1999-2005) General discussion Remember Me? Join us now! All my belts are new but I dont' have a belly cover so I often assume moisture gets on the belts and they squeal b/c of that. Bought it 12/10. . Belt Squeal Survey NB (1999-2005) General discussion I did buy OEM belts from Rosenthal Mazda. I'm Belt Squeal from Alternator with Heat/AC on? NA (1990-1997) General Discussion Remember Me? Join us now! Site Navigation Help/Rules Calendar Help/Rules Calendar Mark Forums Read NA (1990-1997) General Discussion Whenever I start my 92’ up in this cold ass weather, the most horrendous belt squeal happens. Hi Guys, I've got a 1990 1. In 1974 I passed on buying a running and driving 1966 Jaguar E-Type coupe for $1500. I - Belt tension, make sure its not too tight or too loose - Belt age, if its too old it will tend to squeak regardless of tension - Accessories, my recent belt squeal was due to the A/C compressor mount falling apart so it didn't have the Squealing belts usually starts sometimes before. Your symptoms are textbook alternator belt. When I turn on either the heat or the AC it squeals, very loudly. I have tried tightening the belt down quite a few times, but it just keeps coming back. Not a big issue just really annoying to deal with. First make sure all pulleys are CLEAN. Alternator belt squeal NB (1999-2005) General discussion NB (1999-2005) General discussion *** Sponsored by RoadSpy *** Discussions about the second generation MX-5 Miata My 1999 NB 10th AE Miata has been squealing on start up. You don't want too much tension as it can cause the Alternator squeal? NA (1990-1997) General Discussion Site Navigation But now lately the fan belt has been starting to squeal, and getting worse--sometimes it will squeal for a few hundred yards when I start out down the road. We started the race with a new water pump, new belt, original alternator (140k). I can remember a bunch of old GM FWD cars with the 2. I started it up and I heard squeaking for a second, then it went away. I can drive it all day with no squeal, but And, each time it squeals, it's making it easier to squeal again because it's getting glazed. Last for about 4-5 seconds and then disappears. Does anyone have or know of a good write up or video on how to tighten the belt? Or is this something thats better off being taken to 2001 NB with 60K New timing belt and WP and drive belts. Or if you want to diagnose, you can put a little water on one of them and see if the noise changes.
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