rv8 to lt77 serious noise when clutch pressed (2Wd)

speedtripledan · Post by **speedtripledan** » Thu Feb 16, 2012 5:01 pm

Has anyone encountered this problem? when i push the clutch pedal occasionally i get a horrible screeching sound it used to only happen when i was at very low speed or stationary i.e parking etc but now between gear changes as well

The gearbox is recon the clutch and release bearing are also new and it did it before these were changed,

my only thought is the spigot bearing in the crank? its the only moving part that hasn,t been changed on the transmission side..

Any ideas ???

SuperV8 · Post by **SuperV8** » Thu Feb 16, 2012 5:10 pm

How much end float do you have in the crank?

Get someone to press the clutch in when its idling and have a look at the crank pulley to see if you can see it moving forward and back.

Tom.

ChrisJC · Post by **ChrisJC** » Thu Feb 16, 2012 8:27 pm

Also is there any lubricant on the spigot bearing?

Is there any chance that there isn't a spigot bearing in there (if the crank came from an auto car for example)?

Chris.

harvey · Post by **harvey** » Thu Feb 16, 2012 8:34 pm

The auto spigot bearings are a lot bigger than the LT77 ones so the front end of the input shaft would be unsupported but I doubt it would be noisy.
It may have had a new spigot bearing at some time but it's been fitted without checking the running clearance. It could also be the release bearing seizing.

speedtripledan · Post by **speedtripledan** » Mon May 14, 2012 6:55 pm

problem solved, it was the spigot bush it was worn by a good 2mm and oval.