Broken teeth

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Model T Ford Forum: Forum 2013: Broken teeth
Top of pagePrevious messageNext messageBottom of page Link to this message  By Tom Carnegie on Thursday, January 24, 2013 - 05:49 pm:

Have you ever seen this happen?

2


Top of pagePrevious messageNext messageBottom of page Link to this message  By Mike Walker, NW AR on Thursday, January 24, 2013 - 05:52 pm:

Ouch!


Top of pagePrevious messageNext messageBottom of page Link to this message  By Norman T. Kling on Thursday, January 24, 2013 - 05:59 pm:

Did you find anything else broken? It looks like something caused the car to stop suddenly due a part siezing which put so much strain on those gears that they broke.
Norm


Top of pagePrevious messageNext messageBottom of page Link to this message  By Jack Daron - Brownsburg IN on Thursday, January 24, 2013 - 06:07 pm:

Were these riveted triple gears? I had a trany I bought from a pile of junk,that was pretty much that way. Only thing salvageable was the flywheel.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Ted Dumas on Thursday, January 24, 2013 - 06:14 pm:

Is this in one place or three places? It would seem like it would have to be three places. What did the triple gears look like? I suppose since the low gear has the smallest radius it had the higher load of the gearset.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Royce in Dallas TX on Thursday, January 24, 2013 - 06:20 pm:

Answer: No I have not seen that happen.

Question: Tom, what happened?


Top of pagePrevious messageNext messageBottom of page Link to this message  By Tom Carnegie on Thursday, January 24, 2013 - 07:58 pm:

It was in one place only. Flywheel is toast as one of the triple gear pins is loose. All three triple gears were spinning on the bushings. I don't know the whole story. Just got the trans to repair for a guy.

m

This is the gear that broke the teeth.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Matthew David Maiers on Thursday, January 24, 2013 - 08:16 pm:

well i know blue is around 850 degrees. that sucker got HOT! why must people insist on setting things up tight?

is there no way to repair a loose pin hole in a flywheel? if not i guess save it for a HCCT.


Top of pagePrevious messageNext messageBottom of page Link to this message  By kep NZ on Thursday, January 24, 2013 - 09:32 pm:

You can probably find a way to use the flywheel again. Oversize pin maybe.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Terry Horlick in Penn Valley, CA on Thursday, January 24, 2013 - 10:08 pm:

Tom, I bet they didn't set up enough clearance on the triple gears. The bushings seized on the pins and the gears spun... enough to get really hot! I hope those are standard pins and you can go oversize.

You are really a magic worker if you can fix that tranny! Can you salvage the brake and reverse drums?

Cheers, TH


Top of pagePrevious messageNext messageBottom of page Link to this message  By Keith Townsend ; ^ ) Gresham, Orygun on Thursday, January 24, 2013 - 10:12 pm:

Terry-

I remember that, "Bang"...

: ^ (

Keith


Top of pagePrevious messageNext messageBottom of page Link to this message  By Tom Carnegie on Friday, January 25, 2013 - 12:01 am:

I will replace the flywheel. I have dozens of them so it ain't worth messing with the old one. The reverse and brake drum look fine. Yes Terry, I agree with you, probably set up too tight.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Dan Hatch on Friday, January 25, 2013 - 01:20 am:

Tom: Do the pins look like new repros? Dan


Top of pagePrevious messageNext messageBottom of page Link to this message  By Wayne Sheldon, Grass Valley, CA on Friday, January 25, 2013 - 01:49 am:

Someone a couple months ago had that happen. There were a number of postings here about it.
Can a flywheel like that be repaired? Yes, however it really is not worth it. From when the pin first begins to spin in the flywheel, the gears have pressure pushing them out from center. The hole is worn almost totally off center. Therefore you cannot simply use a special over-size custom pin because the final position has to be precise in an egg shaped hole. You could mill the hole out even larger if you can index the three holes together precisely enough. A tricky task (read as expensive) in even the best of machine shops.

If anyone close by me has a flywheel like that, I also need one for an HCCT.
Drive carefully, and enjoy, W2


Top of pagePrevious messageNext messageBottom of page Link to this message  By Terry Horlick in Penn Valley, CA on Friday, January 25, 2013 - 02:03 am:

Keith, Yup...I speak from sad experience. Of course my tranny never lost any teeth... after all I am a dentist.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Ricks - Surf City on Friday, January 25, 2013 - 02:18 am:

Was the crankshaft broken at the same time?


Top of pagePrevious messageNext messageBottom of page Link to this message  By Tom Carnegie on Friday, January 25, 2013 - 02:37 am:

No mention of a broken crank. Transmission locked into high.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Steve Blancard on Friday, January 25, 2013 - 08:21 am:

I had a similar experience a couple months ago. Broke teeth on the low speed drum gear. I had a frozen triple gear bushing. Here's the discussion and photos:

http://www.mtfca.com/discus/messages/257047/320407.html


Top of pagePrevious messageNext messageBottom of page Link to this message  By George_Cherry Hill NJ on Friday, January 25, 2013 - 08:43 am:

Steve,

When you did your rebuild, were you able to get the bush off the shaft without cutting it? Did you perchance then mic the shaft and mic the ID of the bush?

Just curious.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Tom Carnegie on Friday, January 25, 2013 - 10:14 am:

Steve, looks like pretty much the same thing. I guess I missed that thread.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Steve Blancard on Friday, January 25, 2013 - 10:35 am:

The bush was frozen solid. I tried to use a puller to get it off, but it wouldn't budge. I finally slit it with a dremel cut-off tool and pryed it open enough to get it to release. It was a bear. I'm in the process of rebuilding now.

bushing

This is my current thread on the issue:
http://www.mtfca.com/discus/messages/331880/337290.html?1359057695


Top of pagePrevious messageNext messageBottom of page Link to this message  By Steve Blancard on Friday, January 25, 2013 - 10:37 am:

Here is what my gear looked like:

gear


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