H-T,


There is a Chattering noise comming from my Bellhousing. It is most noticeable when driving under 30 MPH and happens mostly at low RPM. The noise is not always there but noticable when it is.


based on the information below, can any one offer any further troubleshooting steps?

car:95 ej1 250k miles.
stock D16z6 and stock transmission

Previous issues:
The throw out bearing was making a loud chattering noise when idling and with the clutch enganged (foot off the pedal)

Steps taken to remediate issue:
I replaced the whole clutch kit and flywheel. TOB still making a quiet noise at idle, not as bad as before.

Additional Information:
When replacing the Flywheel I noticed that the flywheel cover was broken at one of the top screw holes. Could it be out of place and thus causing the flywheel to gring up against it?


Thank you for the help,
Dan.

 

Input shaft bearing in the transmission is bad.

 

Thanks for the quick response. Seems you have hit the nail on the head. I'll have to wait for my buddie to let me use his garage again.

Is there anything else you can suggest to replace while I have the transmission off? I'd rather not replace the whole thing.

 

Replace the seal that goes under it, replace any other bearings that are rough.

Word of advice: Take the time to completely dissassemble the trans and clean it very well. The shafts tend to get full of debris from the broken plastic bearing cage which in turn starves other bearings for oil leading burnt bearings. Debur any worn synchro sleeves, if they or the gears look really bad they should be replaced. When reassembling lubricate everything with 10W30 or something of that nature. When you go to fill the trans with fluid, use 10W30. Do not use Honda MTF.

 

Thanks for the help. It is greatly appreciated.

 

do the rear main seal on the motor ..If you dont it will leak Murphys Law
and look at your oil pan gasket its easy to do when its apart

 

Why is this?

 

92-95 Civic transmissions use standard motor oil. 96+ uses MTF.

 

'92 - '95 D-series trans called for 10W30. MTF is a lot thinner and seems to cause a lot more ISB failures.

 

I've heard that a lot recently.

I replaced my ISB (if you remember my thread). I put Honda MTF.

I have both manuals (92-95) and (96-00) and they say use Honda MTF (use 10W30 if MTF not available and replace asap with Honda MTF).

Thinner oil it doesn't mean less lubrication you know that!

Aircraft synthetic oils are thin as sh*t because above there is very cold and they lubricate perfectly.

Don't use synthetic oil in the tranny doe!

 

I ended up replacing the rear main seal when I changed my clutch, My buddy and I had to torch the flywheel bolts to get them off so we replaced the RMS as a precautionary measure. then we ended up having to drop the oil pan to put the RMS back on so I bought a gasket for it. Thanks for the input though, you're right!

 

http://www.synchrotech-transmissions.com/

They sell a kit for your transmission, every bearing, seal, and synchro you'll need. Save yourself the headache and buy the kit.

 

I'll check it out, Thanks!

 

I remember that thread, I think yours was an S40 ('96 - '00 trans though) can't remember for sure.

The '92 - '95 owners manuals only state to use 10W30, mostly because Honda didn't have their own MTF at the time.

I realize that, but the fact remains it's still too thin for those bearings, and I'm not the only one saying that. I wont run 10W30 in a '96 - '00 trans because in my experience it makes them shift like crap. But '92 - '95 trans shift great with 10W30 and ISBs seem to last forever.