Ok, so my Getrag is making noise, and i have read every post on the .org having to do with it that I can find.
This is exactly what its doing, when trans is in gear and clutch is out, and I am engine braking or letting off the gas, I get the "pennies in a can" sounds coming from what I think is the trans. Granted Im not sure if this is the same "pennies in a can" sounds others have heard.
It started doing it when I installed a stage 3 clutch and motor mounts, I had stock flywheel resurfaced and ive been taking it easy to break clutch in. It only happens under the condition described above, if i give the motor just a little bit of gas it stops making the noise!! Im soooo confused, Clutch is work great BTW.
I have tried both Mobile ATF III and the Mobile Sythetic ATF, Ive got the synthetic in there right now, switching didnt' seem to make a difference. I think I may have had the saturn fluid in before I did the swap (it was rebuilt a few times by dealer)
My hypothesis is, with the supposed saturn fluid before the trans was doing this but somewhat muffled by the fluid, and now the new poly trans mounts and different ATF are making it even worse to the point where I notice it.
Could there be something else going on here? I dont think the trans was damaged during removal/installation, axles are installed correctly.
Any thoughts or ideas appreciated.
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Most likely it is the clutch chatter of the stage 3. Ive been reading and it seems all cars that use the stage 3 have chatter. Mine does, speedracerz has it, zspeedcavi,.... the list could go on and on but if everything is in proper working order i think you are alright.
My 3+ doesn't chatter much at all
Only when I'm mean to it.
I used to race cars, now I race myself.
5K PB: 24:50
10K PB: 54:26
When exactly does it chatter?, the only time I woudl say mine chatters is at very low rpm when engaging first, this noise is only on decel when car is in gear at almost any rpm, and seems to happen less with car is cold.
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Mine only chatters if I let it sit in the cold overnight then start jumping off the clutch instead of slipping it out.
I used to race cars, now I race myself.
5K PB: 24:50
10K PB: 54:26
The condition described is when the clutch is fully out and decelerating, it's not clutch chatter. It sounds like the getrag rattle, and there doesn't seem to be a whole lot you can do to get rid of it sadly.
15.3 @ 89.97mph, 14's on the way?
Team Vision Racing (aka hypsy) wrote:Mine only chatters if I let it sit in the cold overnight then start jumping off the clutch instead of slipping it out.
When you say jump off the clutch, is that after the car has been driven a little, or right after starting it?
Usually when car is warm, makes the noise on decel with clutch fully dis-engaged, barely lay on the throttle and it just disappears, foot off the throttle it comes right back. Im thinking it might be the poly mounts, im going to experiment when I have time and try putting one of the stocks back in for the front trans mount and see if it goes away.
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