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R 50 cam follower question
R 50 cam follower question
On careful examination the right cam followers have what appears to be paint of some sort on the interior surface, almost looks like the red material lining my fuel tank. The left cam follower interiors are simply bare metal. All of the cam followers look good, no pits or cracks.
I had planned to ignore the paint, buff the follower faces and reinstall them but the red paint stuff is flaking off. I wouldn't want chips of paint drifting around in my engine oil. I will probably scrape it out with dental tools and then glass bead the interior surfaces after protecting the faces and bearing surfaces with painters tape.
Do any of you gentlemen know anything about red paint like stuff in cam followers?
Thanks very much for any possible information.
Chris
Port Townsend WA
2007 R1200RT 1958 R50
- schrader7032
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I too had the red interior on
Are you original followers the 4-window type, or do they just contain 2-windows. Attached is a bad picture of my 2-window type:
I believe you want the 2-window types. If yours are 4-window, you might consider getting new ones. The 2-window types are stronger.
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
I have 2 4-window and 2
Is there a problem with the 4-window units collapsing or in some way failing?
Thanks.
Chris
Port Townsend WA
2007 R1200RT 1958 R50
- schrader7032
- Posts: 9058
- Joined: Fri Oct 27, 2006 3:00 am
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Lifter Problems
Chris -
I don't have any personal experience, but that is what I've heard other experienced at this say. The 4-window ones were weaker and prone to fracturing...makes sense given the material removed to create the extra windows. With that information, I'd replace all four just to be sure and start with the same style on both sides.
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
Thanks for your thoughts on
Here is a photo of the two styles of cam follower in my R50. The 2-window style has, as can be seen, red flaking paint on the interior.
Both measure .7850 inch O.D. In fact all four cam followers measure the same. My digital caliper increments in 0.0005 inch increments so they all fall in that range.
No pits or cracks anywhere so with a bit of cleaning the red paint will be gone and then back into service.
Thanks again.
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- cam_followers.jpg (441.78 KiB) Viewed 1287 times
Port Townsend WA
2007 R1200RT 1958 R50
Glyptal (the red stuff)
Tom