| Author |
Message |
JT4104 (66.157.85.31)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, November 17, 2003 - 10:15 am: | |
I've had my 4104 for four years now, and believe that I've lubricated everything in the chart but the pilot bearing, which da book indicates requires a temporary fitting. I'm not even sure where it is to be lubricated, much less the fitting to be used, although I suspect it is from under the coach through a panel opening below the clutch.
Any advise as to how this is done, frequency of lubrication, and type and how much grease would be appreciated.
JT4104 |
BrianMCI96A3 (65.40.154.136)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, November 17, 2003 - 11:04 am: | |
JT, the pilot bearing is pressed into the flywheel and locates the input shaft of the transmission.
The pilot bearing, in use, is buried beneath a) The input shaft that is stuck into it b) The clutch, which the input shaft stuck through c)The pressure plate, which covers the clutch, and d)The trany, which bolts to the engine bell housing and covers them all.
At this point I'd say it would be impossible to lube that bearing with the transmission and clutch in the unit, as hard as it is to get to, I personally would not lube it, I'd install a new bearing.
Being such a difficult bearing to lube, they are sealed bearings for the most part, meant to last a significant number of miles, a sealed replacement bearing will be pre-lubed and require no additional grease.
The short answer is : Every time the clutch comes out, check the pilot bearing, if it turns freely, and smoothly and makes no noise, it's fine, leave it. If not, change it out.
Brian |
FAST FRED (63.234.20.127)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, November 17, 2003 - 1:01 pm: | |
Brian is correct , but even with the new bearing Da Book has a special lube that goes inside the crank end before the Pilot bearing is pushed in'
Most shops dont carry it , so bring some along when changing clutch plates.
FAST FRED |
BrianMCI96A3 (65.40.154.136)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, November 17, 2003 - 9:03 pm: | |
The biggest problem with lubing a sealed bearing, besides opening up the seal to lube it without ruining the seal, is the introdution of grit, into the sealed bearing with attempting to lube one.
It can be done, but I feel the effort must be made to be perfectly clean, otherwise grit along with new grease equals a failed bearing at some point.
Brian |
FAST FRED (65.154.176.240)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, November 18, 2003 - 5:47 am: | |
Da Book makes NO mention of relubing the sealed pilot bearing , only installing extra (special)lube in the crank recess before installing the pilot bearing.
FAST FRED |
BrianMCI96A3 (65.41.249.143)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, November 18, 2003 - 9:04 pm: | |
I'd have to agree with Da Book then...BUT a replaced sealed bearing is going to be trouble free for that much longer.
In point of fact, on a regular basis, I have removed the seal on a bearing, cleaned the bearing out thoroughly, packed the bearing with grease and buttoned it all back up, but NOT a pilot bearing.
It isn't worth having that bearing fail, I have rebuilt more than one manual transmission because of a pilot bearing failure.
Brian |
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