Pilot bearing play
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Cross-Country
Joined: Sep 1999
Posts: 85
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From: Logansport, IN
Pilot bearing play
I pulled the T-18 on my '65 F100 for a rebuild. My shifter cane liked to dance around in neutral. Would a worn pilot bearing contribute to this? I took a video of the seated input shaft and the play seems excessive to me, but I've never checked one before. Please check the video and chime in with opinions. http://youtu.be/yct_lIopgRs
Thanks- Tom
Thanks- Tom
Lead Gopher
Joined: Aug 2012
Posts: 10,057
Likes: 1,612
From: Seattle
Is it a bearing or a bushing? Bushings are made to fit not terribly tight or they can bind on the input shaft and cause wear. They are made to fit snug in the back of the crankshaft and not spin in that interface and just provide some support for the input shaft. The bushing should not spin with the input shaft so some clearance is required or that would happen.
You're this far in so just replace the bushing/bearing. They recommend it with each clutch replacement.
Could it cause the stick lever to dance around? Sort of doubtful since the bearings in the transmission should be a much tighter tolerance than the bushing is designed to provide. And it is mechanically distanced from the bushing to the stick that there should be other factors involved before the bushing would be the culprit.
I'll not say never, but shouldn't cause an issue.
The input shaft shouldn't wiggle like you are doing manually in the video or the bearings in the tranny are worn out, which could cause the stick to dance.
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You're this far in so just replace the bushing/bearing. They recommend it with each clutch replacement.
Could it cause the stick lever to dance around? Sort of doubtful since the bearings in the transmission should be a much tighter tolerance than the bushing is designed to provide. And it is mechanically distanced from the bushing to the stick that there should be other factors involved before the bushing would be the culprit.
I'll not say never, but shouldn't cause an issue.
The input shaft shouldn't wiggle like you are doing manually in the video or the bearings in the tranny are worn out, which could cause the stick to dance.
.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 785
From: Simi Valley, CA
If the roll pin is missing (there may be two, one on either side) or badly worn, the shift lever will do "the hula."
What size is the engine? The 240/300 I-6 use a different pilot bearing than the 352.
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Cross-Country
Joined: Sep 1999
Posts: 85
Likes: 0
From: Logansport, IN
Thanks for the replies. Bill, I replaced that roll pin with a NOS one and put in a new shifter cane from Novak a few months ago. It really shook bad before I did that. I checked the diameter of the shaft and the ID of the pilot bearing and they both measure fine.
Tom
Tom
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