The flywheel is a solid steel disc, it's unlikely to be making any noise at all - clutch release & pilot shaft bearings will only make noise when the clutch is depressed, although in some cases if the clutch is incorrectly adjusted, the release bearing may be in contact with the clutch when it should not, and will make noise when it would not normally.
The location you describe suggests transmission, but the point at which you report the noise - specifically 4th gear - suggests otherwise. In most cases a transmission with worn bearings will make noise in the lower gears, and in my experience, more likely on the over run, than when under power.
Have you at least checked the lube levels in the transmission, transfer case & differentials - evenn if you don't change the oil at least top them up, you could save yourself quite a bit of cash in the long term.
Thanks for the advice. I have yet to check the fluids but I will do that as soon as I have the extra cash. Only gear oil I can find is redline mt-90 and it can be pricey. As for the noise I've been hearing, it progressively gets louder with higher speed. I can hear the whining slightly in second gear, so I'm sure it isn't a gear in specific, it's just making the noise louder at higher speeds. Is it possible it could be my tcase?
Yes - the transfer case is a possibility - as for the gear oil, your location is shown as North Carolina - that's not exactly the boonies - I have difficulty believing that you can't find half a dozen different brands of gear oil within a reasonable distance, are there no Walmarts, or any of the auto parts chains there?
__________________
93 - 1.3 Suzuki Swift GLX
98 - 1.8 Mitsubishi Pajero iO
98 - 2.0 Suzuki Grand Vitara
Yes - the transfer case is a possibility - as for the gear oil, your location is shown as North Carolina - that's not exactly the boonies - I have difficulty believing that you can't find half a dozen different brands of gear oil within a reasonable distance, are there no Walmarts, or any of the auto parts chains there?
Yes I have been to autozone, advance auto, and napa. None of them carry gl-4 compatible gear oil, which is necessary if I want to replace my transmission fluid. The best oil I've been able to find is redline mt-90, but it runs 15 bucks a quart, and I've been able to find it at a specialized redline dealer at a diesel and truck repair shop locally but haven't had the extra cash to get it. And by the way when I say the noise happens during acceleration, it will only make the noise while I'm going faster and when I'm downshifting its quiet
The Pennzoil Synchromesh is a lighter weight oil than recommended and works very well in cold weather. Makes the transmission shift much easier when cold.
Currently using a Sta-Lube hypoid gear oil rated GL4 but is 85w90. Got it at NAPA. When cold it is a littler hard to shift, so when warming up the engine, I place the transmission in 2nd gear and the transfer case in neutral. That allows the the transmission oil to warm a bit before driving off.
Okay so after reading a few threads, I figured I would try to diagnose the noise a little further so I put the tcase in neutral, and shifted through all gears. 1st 2nd and 3rd were quiet, 3rd although had a very very faint buzzing noise. Now 4th gear at a 1:1 ratio started to make noise, it was quieter than when I'm actually driving but I'm guessing this is because I'm sitting in neutral, and there is no load on the drivetrain. This noise was a slight clunking metal noise, as opposed to the whining noise while I'm driving. I put it in 5th gear and the noise got louder. It sounds like a clunking noise, not completely repetitive but definitely in synchronization. I got out and stucky head under while it idled in 5th gear ;D and the noise was DEFINITELY coming from the tcase. Now when I listened to it it, it didn't sound like a very good thing. I'm confused as to why it's only making apparent noise in 4th and 5th gear, when it appears to be the tcase that's making the noise? And if the tcase is in 2H does this mean if this noise is occurring in the tcase at any speed, those are the gears affected? I really need to change and inspect the fluid in the tcase, I might just use some Lucas 80w-90 in my tcase as I've heard enough good things about it. I can let you kno what the fluid looks like as soon as I find out. Thanks guys
The difference between a GL4 & a GL5 oil is an additive known as an EP (extreme pressure) additive - GL5 oils have a higher level of this additive. There are different EP additives, some oils use sulphur as an EP additive and these oils will destroy the softer bronze & brass metals (known as yellow metals) used in the transmission syncromesh rings.
You can find yellow metal friendly GL5 oils - Mobil1 full synth 75w90 is one such oil, and I have been using it in several vehicles instead of a GL4 for over a decade.
__________________
93 - 1.3 Suzuki Swift GLX
98 - 1.8 Mitsubishi Pajero iO
98 - 2.0 Suzuki Grand Vitara
The difference between a GL4 & a GL5 oil is an additive known as an EP (extreme pressure) additive - GL5 oils have a higher level of this additive. There are different EP additives, some oils use sulphur as an EP additive and these oils will destroy the softer bronze & brass metals (known as yellow metals) used in the transmission syncromesh rings.
You can find yellow metal friendly GL5 oils - Mobil1 full synth 75w90 is one such oil, and I have been using it in several vehicles instead of a GL4 for over a decade.
Alright ill have to look for the Mobil1 full synth. I've read up on gl-5's effects, and that's why it's been so hard for me to find. I've just been looking for a gear oil locally at a good price as opposed to buying it online or just going with redline mt-90 if I'm just gonna have to replace something.. I posted above where I have pinpointed a noise in my transfer case. If you read my posting above I put the description there
have you found the solution? im from uruguay and recently bought the suzie, im having the exact same issue (besides a few others) and i could not find an answer to the whining noise at that exact speeds
have you found the solution? im from uruguay and recently bought the suzie, im having the exact same issue (besides a few others) and i could not find an answer to the whining noise at that exact speeds
No I haven't found a definite answer yet, other than start with checking your fluids and replacing, and checking/rebuilding or replacing u-joints.. Also if you would like to pinpoint the noise a little further, try what I said in a couple posts before. Put your transfer case in neutral and shift through the gears. It makes noise at idle if it sits in 4th or 5th gear for me. I can hear a chattering noise from my transfer case. Other than that, that's as far as I've gotten. Good luck with your dilemma, I can let you know as soon as I've found something as well
The difference between a GL4 & a GL5 oil is an additive known as an EP (extreme pressure) additive - GL5 oils have a higher level of this additive. There are different EP additives, some oils use sulphur as an EP additive and these oils will destroy the softer bronze & brass metals (known as yellow metals) used in the transmission syncromesh rings.
You can find yellow metal friendly GL5 oils - Mobil1 full synth 75w90 is one such oil, and I have been using it in several vehicles instead of a GL4 for over a decade.
Good info here, I had no idea about the sulphur yellow metal thing. Damn you guys get me to thinking sometimes.
Thanks
Mike
__________________
1994 Geo Tracker 2 door tin top, 1.6 L with 8V, TBI, Automatic transmission and 4WD, AC***TOTALED***
Looking for my next Toad.
Got it.
1987 Suzuki Samurai, 1.3L, bone stock,
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.
Linear Mode
