Is this Rod Knock?
Joined: Aug 2012
Posts: 8,751
Likes: 1,855
Too many Facebook level responses in this thread. Please don't answer when you clearly do not know what you're talking about.
Driveshaft doesn't spin if car isn't moving. Its obviously not that.
Drive it to see if it blows up to confirm engine diagnosis.
Driveshaft doesn't spin if car isn't moving. Its obviously not that.
Drive it to see if it blows up to confirm engine diagnosis.
Thread Starter
Registered User
Joined: Dec 2021
Posts: 38
Likes: 7
Talk to the guys that installed your clutch, tell them you suspect an issue with the install or parts used, have them get it up on the rack and listen to it. Hopefully they are a reputable shop and will stand behind their work if it is the clutch. I agree with most, that this doesn't sound like typical rod knock, and suspect clutch or trans related issue. The fact that the sound changes or goes away when clutch pushed in is a pretty dead give away its not engine related. It would be clutch related components or trans input shaft bearing failure most likely. Don't keep driving it, you're either going to cause damage/more damage, or at minimum cause yourself a headache and an added tow bill. If you do any further driving at all, save it for the trip to the guys that installed your clutch and hopefully it gets left there and addressed on the spot.
Community Organizer
Joined: Jun 2007
Posts: 31,070
Likes: 566
Joined: Mar 2015
Posts: 1,370
Likes: 138
From: Cali
Could be the pressure plate too, maybe a small piece or portion of it bend or broke off, rubbing on the flywheel/PP inside the bell-housing. Or, maybe even foreign debris went inside the bell housing. Or even, maybe the mechanic left something inside there, like a tool or loose part (maybe he's missing his alignment tool and left it in there, lol).
Should put it on a lift while it's running, with also a person inside to operate the clutch... you should be able to source where the sound is coming from, if it's inside the engine or the bell-housing.
Should put it on a lift while it's running, with also a person inside to operate the clutch... you should be able to source where the sound is coming from, if it's inside the engine or the bell-housing.
Joined: Nov 2012
Posts: 81
Likes: 11
From: New Jersey
Possible improperly torqued flywheel bolts.
I haven't heard it on an S2000 before, but have on a modular motor Mustang. Guy did his own clutch, and severely over tightened flywheel bolts, 4 had broken, the others were so stretched they had low clamp load. Sounded awful.
I haven't heard it on an S2000 before, but have on a modular motor Mustang. Guy did his own clutch, and severely over tightened flywheel bolts, 4 had broken, the others were so stretched they had low clamp load. Sounded awful.
Thread Starter
Registered User
Joined: Dec 2021
Posts: 38
Likes: 7
Yup that was the problem. I took it to the shop and I guess one of their guys did not torque the bolts all the way down causing it to back out. They got new flywheel bolts from Honda and fixed everything. Car is back on the road, thank you everyone for their help
Joined: Feb 2013
Posts: 361
Likes: 59
From: FL
Community Organizer
Joined: Jun 2007
Posts: 31,070
Likes: 566
Always my fear having someone else work on my cars. Unacceptable, especially for how much the going mechanic rate is these days. Glad it got found and handled and no damage was caused, I hope. It surely would have if you kept driving the car as some proposed and the flywheel let go entirely.
Thread
Thread Starter
Forum
Replies
Last Post