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missing screw/bolt on timer?

Posted: Sat Sep 25, 2021 4:16 pm
by NY John T
Hi All,
I took off the timer cover and saw that the roller just spins around the shaft. Is there supposed to be a screw or bolt to lock the roller on to the shaft? I'm assuming there is, and that it is missing. Here's a photo of what I have. There is a hole directly behind the large nub. Does anybody know the size or type I can use? Or a source for it? Thanks.
John
timer.jpg

Re: missing screw/bolt on timer?

Posted: Sat Sep 25, 2021 4:22 pm
by Mark Gregush
Go online and look at the suppliers. There should be a short, headed pin in the hole and cap that fits over it to holds it in place. Here is a sample shown in Lang's catalog, but they all should carry them; https://www.modeltford.com/item/3206.aspx

Re: missing screw/bolt on timer?

Posted: Sat Sep 25, 2021 4:32 pm
by George House
Cut a little nail about 1/4” long to fit in that hole to stabilize the roller on the cam. But you’ll need a specialized cupped washer to cover that nail head to keep it from falling out. Then tighten the nut onto the end of the cam. Most any T hobbiest has extra of these. If you can’t find one locally, I’ll send you one.

Re: missing screw/bolt on timer?

Posted: Sat Sep 25, 2021 11:19 pm
by NY John T
Thanks Guys. I see the pin and cupped washer. I'll order it. I have timer covers that have rubber tabs that are on the outside for oiling purposes (?)
John

Re: missing screw/bolt on timer?

Posted: Sun Sep 26, 2021 12:14 am
by Steve Jelf
Some cam shafts have that little hole on one side. No problem there. Some have it all the way through, so you can easily get the roller installed 180º off from where it belongs. Beware.

Re: missing screw/bolt on timer?

Posted: Mon Sep 27, 2021 2:28 pm
by NY John T
Thanks Steve. Good point. I never thought about that.
John

Re: missing screw/bolt on timer?

Posted: Mon Sep 27, 2021 6:19 pm
by John kuehn
When you order the pin and the cover washer buy 2 each. They are cheap and and it’s good to have extras.