NoPistons -Mazda Rx7 & Rx8 Rotary Forum

NoPistons -Mazda Rx7 & Rx8 Rotary Forum (https://www.nopistons.com/)
-   2nd Generation Specific (https://www.nopistons.com/2nd-generation-specific-17/)
-   -   transmission. (https://www.nopistons.com/2nd-generation-specific-17/transmission-64060/)

hillbilly 02-07-2007 08:15 PM

1986 gsl-se



there is this god awful noise comming from my transmission. I sure its something common, I've seen topics on here before about it, yet my search yields nothing...



WHAT IN THE **** IS IT?



its driving me absolutely up the wall! I'm positive its a cooked bearing (what else sounds like constant grinding metal?), but which one? the noise follows the RPM's in neutral, when the clutch is pressed it goes away, (so its something on the input shaft only) and like I said, 4th gear is quiet as a mouse.



its been doing this as long as anyone can remember, (atleast 3 years now) so I'm not desperate for info or anything, just sick of turning up the radio.



thanks

Hill

fc3s4utnv 02-07-2007 08:21 PM

Sounds like you bearings are toast, get a rebuild.

Leetheslacker 02-07-2007 08:47 PM

i believe the throw out bearing is the culprit of noise like that, when it only happens with the clutch out.



i could be wrong

slvrwng2000 02-07-2007 09:21 PM


Originally Posted by Leetheslacker' post='857916' date='Feb 7 2007, 06:47 PM

i believe the throw out bearing is the culprit of noise like that, when it only happens with the clutch out.



i could be wrong



I agree with lee it does sound like a throwout bearing.

fcs13 02-07-2007 10:35 PM


Originally Posted by slvrwng2000' post='857920' date='Feb 7 2007, 09:21 PM

I agree with lee it does sound like a throwout bearing.



I second that

hillbilly 02-08-2007 12:04 AM

thought bout the throw out bearing, but if it was, wouldnt it do it in fourth gear too? after all, the clutch doesnt know what gear you're in, its mated to the flywheel, it only knows in, out and RPM's.



thought the gear ration being 1:1 in fourth (right?) might have something to do with it being quiet... like... well shoot, I dunno.



I do have a clutch assembily in my garage... bearings included, maybe if I get a day (or two) off I'll put her up on jacks.

fcs13 02-08-2007 10:30 AM


Originally Posted by hillbilly' post='857947' date='Feb 8 2007, 12:04 AM

thought bout the throw out bearing, but if it was, wouldnt it do it in fourth gear too? after all, the clutch doesnt know what gear you're in, its mated to the flywheel, it only knows in, out and RPM's.



thought the gear ration being 1:1 in fourth (right?) might have something to do with it being quiet... like... well shoot, I dunno.



I do have a clutch assembily in my garage... bearings included, maybe if I get a day (or two) off I'll put her up on jacks.



Could also be some messed up synchronizers...that means rebuild which prolly wouldnt hurt anyways. Sucks to have to do but that will save you a lot of trouble in the end.

j9fd3s 02-08-2007 12:17 PM

the trans bearings are bad, the middle countershaft bearing and the input particularly...

jwteknix 02-08-2007 12:18 PM

^^^ YES thats why it doent make noise in 4th b/c its direct drive

fc3s4utnv 02-08-2007 12:24 PM

Reffer to first answer, your bearings are toast, get a rebuild.


All times are GMT -5. The time now is 08:51 PM.


© 2024 MH Sub I, LLC dba Internet Brands