Just bought a 98 honda civic coupe, when I test drove it with my buddy there were no noises, but then the day I got it, driving around I heard some grinding? It wasn't grinding at all before... the noises I am told are not so much coming from 4th and 5th rather than the 1st three gears... this is my first honda ever so I am not sure what it could be... My buddy says that something is probably loose? anyone care to shed light on the situation? Is it a bad clutch? The previous owner says it could be the heatshield rattling underneath, and that noise should go away when you pull up on the shifter. my buddies got the car right now and is trying that out.

 

Do you mean rattling?

 

There is always a rattle but very quiet when moving, but then when you shift, it loudens up? maybe due to the Rpm drop I am thinking.... Heatshield is definitely a possibility

 

The exhaust is quite loud (teehee) so the noise is very faint when your moving... the tranny seems to be catching good and transferring the power to the wheels. Hmm. *thinking cap is on*

 

My buddy just got back to me, the short shifter kit on the civic doesn't quite fit it, and so it's a little lose, he thinks the shift linkage is loose so he is going to be tightening some things up and putting new bushings in and I'll probobly eventually just be getting a new kit for it. If you read this eventually Cramer I love you... Thanks for the insight Fnix! Now how do I close a thread? haha

 

He says it is okay to drive it though so that's good news... don't need to drive around in the 90' camry no more....

 

I thought I had it all figured out but I am not quite sure what it is... the short shfiter kit is a little loose but wouldn't be causing this noise... The noise sounds exactly like this and it only happens when I take my foot off the gas while driving when the clutch is engaged (when my foot is not on the clutch).


Not quite sure what it is

A noise can be heard faintly when stopped and in neutral, and then upon pressing the clutch peddle down the noise goes away.

 

foot OFF the clutch in gear or in neutral would be input shaft bearing. (happens to like every d series 96-2000) its been loud on both mine but more noticable in 1-3 and gets quieter in 4th and 5th mainly because in direct drive and over drive you input shaft is spinning slower than it does in 1st threw 3rd.

foot ON the clutch sitting there noise is throw out bearing.


EDIT: in the miata video it sounded way to loud for a standard warn bearing. if your pressure plate is loose or your clutch springs are wearing out you can get some narly noises out of the tranny.

 

The secondary noise occurs only with the foot off the clutch, a bad TOB I am told is when the clutch is disengaged, or your foot is on the clutch. This noise occurs when my foot is not on the clutch.

 

Sounds like your isb (input shaft bearing) inside your transmission. I recently had to replace mine too. Its a common fault in d series transmissions. Replacing it will require you too open the trans and pull the main and countershaft off to get to the bearing.

 

so I have a bad clutch, and a bad input shaft bearing?

 

Does the noise get louder through 1st and 3rd gear? as hillbillycivic posted
bad isb's are very common

 

the noise is loudest in 3rd, 5th and 4th are almost silent but you can still hear it

 

Yep sounds like bad isb, before I replaced mine it would scream like a banshee in 3rd

 

Had the same situation with a 2002 Civic. It was two bearings in the transmission.

 

Would the ISB really be getting as loud as the noise in the video though? Which two bearings were they r berg?

 

Not sure which bearings, since I did not do the repair myself. One of them was right where the input shaft enters the case.

 

I have that same problem with a junkyard transmission and it was the transmission bearings going bad due to lack of oil

 

That would be the input shaft bearing

 

It sounds as though I have a bad ISB, but would the transmission really scream as bad as it does in the video just because of a bad isb?, I mean can a bad ISB really make that much sound?

 

Do you guys recommend just throwing in a used transmission (they are under $150 I am told) or taking my current one out and replacing the input shaft bearing? I have never really worked on a transmission before so both the swap, and the rebuild would be difficult for me, but the swap does sound easier?

 

Swap sounds easier but of course you run the risk that the used transmission will also have problems. My bearings were replaced by a mechanic who specializes in Honda, and the cost was around $1,000 including some clutch parts which made sense to do since it was taken apart.

 

Its actually not to hard to replace it. Youll have to get the tranny off the engine, undo all the bolts around the casing, spread the snapring and shimmy the case off. Once off there will be a allen head bolt in the clutch side of the trans, undo that and undo the reverse gear holder. Pull up on the main and countershaft they will come right out. Then the bearings will be right there. D series.org has a pretty good diy on it ill post a link
http://www.d-series.org/forums/trans...ng-change.html

 

Thanks for all the help guys!

 

ITs common, its happening to My 93 EX right now. My mechanic said the cheapest way to fix it is just get a rebuilt Tranny. Unless you have all the time in the world and all the tools to DIY.