Kryndon
Proven Member
- 944
- 591
- Jan 10, 2014
-
Bulgaria,
Europe
It's best if you remove the gears off the camshafts so you can first clean them up with a wire wheel and solvents, but you could also just cover the shaft and do it that way.
Basically, you take an old timing belt, wrap it around the gear as tight as possible, then clamp the belt where it meets with vise grips or anything you can think of (vise grips work best, though). Most important thing is to make sure the side you're painting is sitting 100% flush with the timing belt. That way you wont get overspray onto the actual teeth where the belt ribs ride. That surface needs to be left as it is and not painted over or sand blasted.
You can then either hang the belt off somewhere and spray one side of the cam gear, or simply hold it by hand. It's stiff enough so you can hold it up right and spray away. Personally I do one pass on the front side, wait 5 minutes, loosen the belt, make it flush with the opposite side, then spray that side once too. Apply as many coats as you wish. Then either let it hang dry with the belt or remove the belt and put the gears aside. The overspray will be MINIMAL, if any.
I would recommend thorough cleaning of the gears first (I used a metal wire wheel + diesel and some degreaser + water), and apply a good primer. The gear spokes are very smooth so straight-up paint might have a hard time sticking, unless you roughen it up with some sand paper. I just wanted to get some color on them so I didn't prime.
That's it! Here's the before and after!
Basically, you take an old timing belt, wrap it around the gear as tight as possible, then clamp the belt where it meets with vise grips or anything you can think of (vise grips work best, though). Most important thing is to make sure the side you're painting is sitting 100% flush with the timing belt. That way you wont get overspray onto the actual teeth where the belt ribs ride. That surface needs to be left as it is and not painted over or sand blasted.
You can then either hang the belt off somewhere and spray one side of the cam gear, or simply hold it by hand. It's stiff enough so you can hold it up right and spray away. Personally I do one pass on the front side, wait 5 minutes, loosen the belt, make it flush with the opposite side, then spray that side once too. Apply as many coats as you wish. Then either let it hang dry with the belt or remove the belt and put the gears aside. The overspray will be MINIMAL, if any.
I would recommend thorough cleaning of the gears first (I used a metal wire wheel + diesel and some degreaser + water), and apply a good primer. The gear spokes are very smooth so straight-up paint might have a hard time sticking, unless you roughen it up with some sand paper. I just wanted to get some color on them so I didn't prime.
That's it! Here's the before and after!
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