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Discussion Topic:
tranny grinding
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39topless |
05-08-2014 @ 10:04 AM
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Member
Posts: 77
Joined: Feb 2013
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My stock, top loader '39 tranny has the "grinds". I can not down shift into first, at a complete stop without grinding. Is the cause the tranny, the clutch or the nimrod operator? Thanks
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CharlieStephens |
05-08-2014 @ 12:57 PM
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Senior
Posts: 888
Joined: Oct 2009
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It is a problem with the operator expecting too much. The tranny does not have syncros going back into first. This feature came out in Fords in the sixties. If you practice you can double clutch to get into first with coming to a complete stop. Charlie Stephens
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Stroker |
05-08-2014 @ 2:17 PM
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Senior
Posts: 1460
Joined: Oct 2009
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You could have some clutch plate drag that prevents the input from stopping immediately when you depress the clutch. Try placing it in second, while completely stopped and then quickly moving it to low. If it still grinds, you need a clutch adjustment. Charlie: I grew up shifting non-syncro trucks. I'll admit that you can double-clutch your way into low on an early Ford 3-speed transmission, I even mastered shifting on the go with a Ford 8N. Methinks however, that double clutching in order to select low while standing is not normal.
This message was edited by Stroker on 5-8-14 @ 2:24 PM
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supereal |
05-08-2014 @ 2:48 PM
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Senior
Posts: 6819
Joined: Oct 2009
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I agree with Dan regarding the art of double clutching, so0mething many of us learned many years ago. If you have less than 1-1 1/2 inches of free play with the clutch pedal before the release bearing contacts the pressure plate, it could make shifting difficult. Another trick with the "crash boxes" is drain them and refill with 140 weight gear oil. This encourages the cluster gear to slow down before shifting.
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39topless |
05-15-2014 @ 10:27 AM
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Member
Posts: 77
Joined: Feb 2013
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Been practicing my dbl clutching and it does work, most of the time. Will replace the gear oil next time. Thanks
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39topless |
05-20-2014 @ 3:20 PM
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Member
Posts: 77
Joined: Feb 2013
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Thought I should update in case anyone else is having this same problem. After driving for a few days, I have found that "Stroker's" advice about shifting into second and then quickly down into first really works well. Thank you
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