Tolerance for steering shaft

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Model T Ford Forum: Forum 2013: Tolerance for steering shaft
Top of pagePrevious messageNext messageBottom of page Link to this message  By Tom Moorehead on Sunday, August 11, 2013 - 07:18 pm:

Is there a clearance for the lower frame bracket that the steering column shaft passes through, just above where the pitman arm attaches? I know that is is to be lubricated and obviously the ones I have have not been. There is some shaft wear but no indication of any bushing through the bore of the support bracket.
Thanks
Tom


Top of pagePrevious messageNext messageBottom of page Link to this message  By Steve Jelf, Parkerfield KS on Sunday, August 11, 2013 - 07:32 pm:

Part #3545 (1909-1925) or #3545B (1926-1927) is the steering bracket bushing.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Tom Moorehead on Sunday, August 11, 2013 - 07:34 pm:

Have any idea what the clearance should be between the shaft and bearing?


Top of pagePrevious messageNext messageBottom of page Link to this message  By Tom Moorehead on Sunday, August 11, 2013 - 07:34 pm:

Sorry, bushing?


Top of pagePrevious messageNext messageBottom of page Link to this message  By Dave Huson, Berthoud, Co. on Monday, August 12, 2013 - 02:45 am:

Tom Moorehead:

All stearing shafts that were used very long are worn where they rub on the bushing. This leaves a KNOB on the end of the shaft where is sticks out below the bushing, You MUST put your shaft in you lathe and cut the KNOB down to the size of the worn area. If you don't when you size your bushing to fit the knob the bushing will be way to loose and you will have a bad shimmy. After I cut the knob down I just ream my bushing to a snug fit and go from there. By snug fit I mean your shaft will turn easy with no side movement.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Tom Moorehead on Monday, August 12, 2013 - 04:52 pm:

Thanks Dave


Top of pagePrevious messageNext messageBottom of page Link to this message  By Jerry VanOoteghem on Monday, August 12, 2013 - 04:58 pm:

Tom,

I would shoot for .001/.002 clearance. (not "per side" but total clearance.)


Top of pagePrevious messageNext messageBottom of page Link to this message  By Ken Kopsky, Lytle TX on Monday, August 12, 2013 - 06:24 pm:

Ditto what Dave and Jerry gave you. The steering bracket bushing is a commonly ignored source of play in the steering.


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