Ol Mans 91 LX

91 Civic LX Automatic 1.5L Vehicle has 108,000 miles on it & runs great (for what it is) Has a vibration @ idle bad enough to
shake the steering wheel. Just to be on the safe side, the T-belt, and tune up were done (due anyway) and the motor mount on
that end was checked for damage & appeared OK. The engine does not appear to have an abnormal amount of movement or
rocking on acceleration, however I have NOT checked the other mounts. Thoughts?

sdaidoji

iTrader: (1)

check the mounts
check timing
carb adjustment?
what idle RPM?

Ol Mans 91 LX

Yeah, this has been a problem w/this car for a little while unfortunately, but I really want to keep this car as nice as possible
as it is a one family car and pretty clean. I am using the factory tach. & it is idling at 750 in drive, so maybe a better tach needs to
be used to set it. As for the F.I unit, maybe the IAC needs to be cleaned as it is original but the rest of the adjustments seem
to be correct. (no check eng. Lite) I am planning on checking the rest of the mounts this Saturday (weather permitting)
along w/the timing & will LYK what I find. Thanks again

sdaidoji

iTrader: (1)

ow, yeah, 91 was FI, not carb... my bad

Ol Mans 91 LX

Apparently the crank pulley/harmonic balancer is going bad. I understand that the aftermarket pulleys offered are NOT
a real good idea, however I cannot seem to find a suitable factory style replacement..........Any thoughts?

sdaidoji

iTrader: (1)

Member slumpertcivic seem to have experience in the dorman, so worth a try?

It's a different car generation, but if you can't find OE, try them?
post #18
https://www.civicforums.com/forums/3...on-engine.html

Ol Mans 91 LX

Yeah, I have had no luck other than of course getting the OEM part number.............56990-pm3-y01

sdaidoji

iTrader: (1)

wow... I tried, it seem hard to find them...

there was one for 92 on partsgeek, and this one from summit (more "performance").

https://www.summitracing.com/parts/a...da/model/civic

or you could try scrap yards...

car-part.com

aftermarket might be using a different number than the OE part number, so search with year, make model instead

Ol Mans 91 LX

Yeah, hate to do that but may be the only option............Gonna also see if I can retro fit a multigroove pulley to the earlier P.S. pump so I can use the 92 & later
balancer/pulley assy. Will LYK & thanks for the assist!

sdaidoji

iTrader: (1)

good luck!

Ol Mans 91 LX

Well...........
Managed to find a low mileage wreck near me with a good balancer! I also found a place in Ca. that can rebuild/
restore harmonic balancers. Had a quote of $93 so if anyone else has this problem........
I also did the research on swapping out the later (92-95) balancer. If you have manual steering,you are golden!
If you have power steering, the pulleys on the P.S. pump are different. The newer P.S. pulley is a multi-groove and will NOT
interchange on the older P.S. pump. If someone could make a sleeve to modify the newer pulley which is driven by a muti-groove
set-up to the "flat side" earlier pump than the swap is also do-able......Just an FYI & thanks to all who responded here.

sdaidoji

iTrader: (1)

glad you got that solved and thanks for the info!