Ring gear screws

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Model T Ford Forum: Forum 2014: Ring gear screws
Top of pagePrevious messageNext messageBottom of page Link to this message  By Bill Thompson on Sunday, June 01, 2014 - 01:10 pm:

I need some brass screws for the starter ring gear. Which ones do I order? They have some for re-pros , and some for??? Maybe originals. How do I know which I need? Don't know if I have original or re-pro. What is the difference?


Top of pagePrevious messageNext messageBottom of page Link to this message  By Mike Walker, NW AR on Sunday, June 01, 2014 - 01:21 pm:

Bill -- Original ring gears have #14x24 threads. The repops have 1/4"x24 threads. Try a 1/4x24 bolt in it and see whether it's a good fit. It should screw in easily and be snug, not sloppy.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Mike Walker, NW AR on Sunday, June 01, 2014 - 01:25 pm:

Oops, seems like the sloppy part is the other way around. I think the #14 is slightly smaller than 1/4". So if a 1/4" bolt goes in easily, you have the repop gear. If not, you have an original with the #14 threads.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Dan Treace, North FL on Sunday, June 01, 2014 - 02:50 pm:

The #14 thread is only for original Ford ring gears.

Maybe you can see Ford script on the ring gear if original one.

The 1/4" are used for re-pop gears.

Wish the re-pop gears would be stamped with legend "use only 1/4" x 24 screws"

What happens when you used NOS Ford brass #14 x 24 screws on a re-pop ring gear without warning.
The Ford screw on left....note the thread tears down in the 1/4" x 24 hole, and will let the magnets plates get loose! :-( Used the 1/4" x 24 on the right side to fix the problems. Ugh!



#14 x 24 on left.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Mike Bender Tulsa Oklahoma on Sunday, June 01, 2014 - 04:36 pm:

New repo ring gears come with 14 pitch threads . I think you can get it with 1/4 x 20 if you didn't run magnets.

I just stock the 14 pitch ring gear when magnets are NOT used, just tap the threads out to 1/4 x 20.


Top of pagePrevious messageNext messageBottom of page Link to this message  By john kuehn on Sunday, June 01, 2014 - 04:55 pm:

I thought the ring gears with the wrong threads were going to be used up fairly soon.
Wasn't the vendor going to correct the size in the newer runs of the gear? Or so I thought.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Dan Treace, North FL on Sunday, June 01, 2014 - 05:20 pm:

John

According to the current web sites of Lang's, Mac's, and Synder's....the reproduction ring gears are all special 1/4" x 24 thread.. and the brass screws, 1/4" x 24 are only for the "Non-Ford ring gear".

No repro gears or repro brass screws are made to Ford original specs for thread!


Top of pagePrevious messageNext messageBottom of page Link to this message  By Mark Gregush Portland Oregon on Sunday, June 01, 2014 - 05:59 pm:

Check your thread count, seems to me there are some 1/4 28's out there.


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