I am in the process of rebuilding my trans. And the pilot bearing that is usually floating was pressed on ,I examined the shaft and it does not appear damaged in any way and the provided bearing will need to be press fitted. The kit said it was a replacement part .has anyone else run into that problem
- Thread starter Wdr622
- Start date
TheOldHokie
Well-known Member
- Location
- Myersville, MD
Are we talking about the clutch pilot bearing?
TOH
There appears to be some confusion. What most of us refer to as the pilot bearing fits snugly into the back of the crankshaft, and supports the weight/thrust of the clutch disc and aligns the input shaft. Item #27 appears to be the rear carrier bearing of the input shaft(not sure of the exact terminology, since I'm not sure which trans you are working on.) If it was a press fit when disassembled, that is most likely how it is supposed to fit, if it appears to be factory finish.
There's NO confusion at all (except perhaps on your part) as # 27 IS the "transmission mainshaft pilot bearing" and is called that in the official parts catalog.
MANY other manual transmissions are set up in a similar fashion, and also call the bearing inside the transmission drive gear on the pilot shaft the "main shaft pilot bearing". NOTHING unusual at all here in nomenclature.
The two 8n trans kits I've bought from this site,over the last couple of years, had press fit bearings.All of them. The They would not go on the shaft with just finger pressure.
The old bearings needed a bearing splitter, and puller, or press, to remove.
There were no instructions or reference to a " replacement part"
I've read posts here about heating the new bearings in oil, to expand, then just dropping them on the shaft. I have yet to try.
Using the top search window in Modern View, may be helpful.
John
The old bearings needed a bearing splitter, and puller, or press, to remove.
There were no instructions or reference to a " replacement part"
I've read posts here about heating the new bearings in oil, to expand, then just dropping them on the shaft. I have yet to try.
Using the top search window in Modern View, may be helpful.
John
The reason I refer to it as a pilot bearing is the diagram in my manual calls it a pilot bearing.that being said I am referring to #27 in the diagram posted.I am working on a 1951 8n ford.I expected it to be a slip fit also and someone could have Worked on the trans. before .It had a whining noise and I wanted to address the problem before it caused any damage.I was just wanting to know if anyone had encountered this before the pilot on the crank looks fresh as does the clutch assembly . my main concern is the preload as there was only one shim between the rear bearing cup and the trans case
TheOldHokie
Well-known Member
- Location
- Myersville, MD
The main shaft bearings are not a slip fit. The dealer service training manual shows removal of the main shaft gears and both front and rear bearings using a puller. Reassembly is done with an arbor press or by driving them on with a sleeve.
TOH
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