Release Bearing Woes
Posted: Tue Nov 28, 2006 7:33 pm
I have a screeching noise coming from the release (throw-out) bearing on my +2 when starting out on a journey. It happens when the clutch is depressed as you change gear. It sounds as if the bearing is getting dry.
What is strange is that I replaced this bearing no more than 15K miles ago when the clutch was replaced. Last winter (5K miles ago) I had the engine out and looked closely at the clutch - all seemed well with the bearing rotating freely. It felt like new.
I then did something "clever" that might be not so clever! I smeared some LM grease on the bearing and heated it with a blowlamp just enough to melt the grease so it ran inside. When the bearing cooled, it felt fine, although stiffer with the LM grease.
I am wondering if the LM grease is not flowing inside the bearing, so the rollers are running dry while surrounded by grease. What was the bearing filled with when new?
I will try and grind or drill a small hole in the side of the bearing casing through the opening in the bell housing. Hopefully I can fit an extension to my dremel to do this! Anything but pull the engine for just a bearing! I just need to find out what to pump in. I can then degrease and close the hole with a blob of epoxy.
Dave Chapman.
What is strange is that I replaced this bearing no more than 15K miles ago when the clutch was replaced. Last winter (5K miles ago) I had the engine out and looked closely at the clutch - all seemed well with the bearing rotating freely. It felt like new.
I then did something "clever" that might be not so clever! I smeared some LM grease on the bearing and heated it with a blowlamp just enough to melt the grease so it ran inside. When the bearing cooled, it felt fine, although stiffer with the LM grease.
I am wondering if the LM grease is not flowing inside the bearing, so the rollers are running dry while surrounded by grease. What was the bearing filled with when new?
I will try and grind or drill a small hole in the side of the bearing casing through the opening in the bell housing. Hopefully I can fit an extension to my dremel to do this! Anything but pull the engine for just a bearing! I just need to find out what to pump in. I can then degrease and close the hole with a blob of epoxy.
Dave Chapman.