cj.surr
Well-known member
I have an AHU that was swapped into a Volvo 240. I am using the Volvo 240 trans, so I have a bellhousing adapter. I have tried a few clutch setup but have had issues with them all.
Setup 1:
Solid hub flywheel for b5 1.8t
Unsprung clutch disc
This setup worked fine except some chatter when slipping the clutch and massive vibration between 1600-2000 rpm. The vibration seems to resonate the whole car at engine frequency, and appears to originate in the transmission area. The vibration occurs in every gear but is worse with increasing load and higher gear.
Setup 2:
Dual mass 1.8T flywheel
Unsprung clutch disc
This setup still had some chatter when slipping the clutch, but the vibration is mostly gone. Worked fine, but after 500 miles, the new pressure plate had a strap rivet failure that also damaged my custom clutch disc. I'm not sure what caused the failure. For fear of the dual mass flywheel also failing, I tried changing up the setup.
Setup 3:
Solid hub 1.8t flywheel
Sprung hub Ford Escort clutch disc
This setup takes off smoothly but the massive vibration is back. Not quite as bad as Setup 1, but still bad enough that I don't feel comfortable loading the car in that RPM range.
So, this brings the question - why does my car seem to need a dual mass flywheel to dampen engine vibrations when other seem to be fine with a solid flywheel? I understand that the dual mass could simply be masking another problem, but the engine ran smooth in the Jetta I pulled it from, and the same with my 240.
Any input or experiences with TDI conversion driveline vibration would be appreciated.
Setup 1:
Solid hub flywheel for b5 1.8t
Unsprung clutch disc
This setup worked fine except some chatter when slipping the clutch and massive vibration between 1600-2000 rpm. The vibration seems to resonate the whole car at engine frequency, and appears to originate in the transmission area. The vibration occurs in every gear but is worse with increasing load and higher gear.
Setup 2:
Dual mass 1.8T flywheel
Unsprung clutch disc
This setup still had some chatter when slipping the clutch, but the vibration is mostly gone. Worked fine, but after 500 miles, the new pressure plate had a strap rivet failure that also damaged my custom clutch disc. I'm not sure what caused the failure. For fear of the dual mass flywheel also failing, I tried changing up the setup.
Setup 3:
Solid hub 1.8t flywheel
Sprung hub Ford Escort clutch disc
This setup takes off smoothly but the massive vibration is back. Not quite as bad as Setup 1, but still bad enough that I don't feel comfortable loading the car in that RPM range.
So, this brings the question - why does my car seem to need a dual mass flywheel to dampen engine vibrations when other seem to be fine with a solid flywheel? I understand that the dual mass could simply be masking another problem, but the engine ran smooth in the Jetta I pulled it from, and the same with my 240.
Any input or experiences with TDI conversion driveline vibration would be appreciated.