Clutch fork pin for Ford 640

moday · Mar 16, 2022

Has anyone used the clutch fork pin that you can buy on this website?

The purchased ones slide freely in both the clutch fork and shaft as well as the bracket on the end of the clutch shaft that goes through the bell housing.

I wonder if these should be a press fit but it seems like I need to peen it over to prevent slide out...how does a person do that while working in the bell housing and no real way to keep the pin from
wanting to come out as you try to tap the end without the end?

I may just buy a similar size pin with a hole in it and use a cotter pin? A person posted to try the Spirolok but I wonder what other techniques have been used to replace these pins.

thanks in advance, moday

jimtrs · Mar 16, 2022

(quoted from post at 10:52:43 03/16/22) Has anyone used the clutch fork pin that you can buy on this website?

The purchased ones slide freely in both the clutch fork and shaft as well as the bracket on the end of the clutch shaft that goes through the bell housing.

I wonder if these should be a press fit but it seems like I need to peen it over to prevent slide out...how does a person do that while working in the bell housing and no real way to keep the pin from
wanting to come out as you try to tap the end without the end?

I may just buy a similar size pin with a hole in it and use a cotter pin? A person posted to try the Spirolok but I wonder what other techniques have been used to replace these pins.

thanks in advance, moday
<img src=https://www.yesterdaystractors.com/cvphotos/cvphoto120325.jpg>

I would not use a loose fitting pin here, or anywhere in clutch linkage, no matter how it's secured. Just adds to slop, and begins wearing faster. I know some of these are tapered pins, not sure about your application. I haven't used a replacement pin. Can you use the original pin?

moday · Mar 16, 2022

The new pin is a good fit but not to where you'd have to drive out with a punch. The old ones were ground down as they were
peened over on the end to get them out and I really had to heat them and pound on them. The old ones are on the short side
unless I put a glob of weld on the end but I'm not sure if that will harm the fork. The weld may want to eat up the cast fork or
would that be ok?

jimtrs · Mar 17, 2022

Weld not necessary. The original, tight fitting pin stayed put for what, 60+ years!

Just saw your other post on this subject where you say the new pin is loose fitting. You really want a tight pin in this application.

[u:2374b9fb61][b:2374b9fb61]wore out[/b:2374b9fb61][/u:2374b9fb61] gave you good advice in one of your other posts. "use a Spirol pin or a rollpin with a smaller one of appropriate size driven inside it"
Link to that message here

Clutch fork pin for Ford 640

moday

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jimtrs

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moday

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jimtrs

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