Mr.H's new engine

[Sidecar Bob]

I know I should use the 1100 the camshaft holders that came with the 1100 heads because the bearing surfaces have to be machined in both together.

I think I should I use the 1000 rockers with the 1000 cams (in the 1100 heads) but I would like confirmation.

Also, should I be thinking about dressing the cams & followers in any way? There are shallow ridges on the lifting areas of the lobes and matching grooves in the followers. None of them have sharp edges and while they look bad I can barely feel them with a fingernail.....

[Track T 2411]

Keep the holders with the heads, and the rockers with the cams, if possible.

[ericheath]

Check Wingovations site for Old Fogeys recommendation on dressing the cam surfaces.

[gltriker]

I would take a close look at where each valve lash adjuster screw's, ball end contacts its complementing valve stem tip for wear, too.
If needed, New adjuster screws and their locking nuts are still available from Honda parts.

[robin1731]

snip........... There are shallow ridges on the lifting areas of the lobes and matching grooves in the followers. None of them have sharp edges and while they look bad I can barely feel them with a fingernail.....

That is not a good thing. You should never be able to see/feel any wear like that.

.

[Sidecar Bob]

I read John's page. It talks about dressing the followers if you have to replace the camshaft but don't have the followers that it is worn in with it. That's why I'm not sure.

I looked at a lot of pics of damaged cams online but couldn't find any that looked like mine. They all had a lot of sharp, deep scoring or large rough areas. Here are pics of the marks on the worst of mine. It almost looks like there were harder areas on the lobes that didn't wear as quickly and they wore grooves in the followers



BTW: The adjusters look OK, as do the ends of the valves.

[robin1731]

I wouldn't run those pieces unless I absolutely had too. The wear will get worse. Going by the pics it is past the hardened part of the cam and follower.

.

[Sidecar Bob]

Interesting. From the ridges at the edges of the cam lobes where the followers don't rub these cams appear to have less wear than the ones in the 79,000 Km 1100 engine. And the followers don't look as worn either. Other than the grooves that match the ridges on the cams, that is.

In the last day I have spent several hours on Google trying to find pics of similar wear with no luck. As I said, the ridges & grooves are not very deep. I had to take a bunch of pics before I got ones that showed them...

I think the hole in the follower on the left in this pic from http://www.wingovations.com/cams-and-rockers/4579471096 showing followers that have been dressed looks deeper

[Sidecar Bob]

Today I learned how to lap the cams & followers. I started by going over them with emery cloth wrapped around a file per the Wingovations link above, then with 400 grit aluminum oxide paper and finished them on the buffing wheel. I cleaned everything with Tool & Parts spray afterwards and then assembled the followers into the 1100 head's cam holder with moly/lith grease, making sure to keep the followers on their original lobes.

Tomorrow I'm going to see if I can figure out how to get the valves out to lap them. Its hard to get my valve spring compressor under the springs because of the big ridges next to them and when I do it lifts the bottom instead of pushing the top down and I can't get the collets out.

[ericheath]

Out if curiosity, did you happen to measure the cam lobe max before and after? I’m curious as to how much stellite the aluminum oxide was able to remove. I never found a source stating how thick it is. I’m thinking it’s a couple mm thick based on some info about stellite coating other metals, but the service limit is not even 1 mm.

[Sidecar Bob]

I didn't measure them but the aluminum oxide didn't take much off; I basically used it to get rid of the sanding marks from the emery cloth. As I said before, the marks weren't very deep so I doubt if I removed more than a few thous.

BTW: I found a couple of videos about removing valve springs

[BikeMaine]

Good information!

[Track T 2411]

Nice videos, but what's supporting the valve to keep it from moving with the spring?

[Sidecar Bob]

The guy with the vise grips doesn't say. The other guy did 3 videos with different tools and one of them came with a sheet of rubber with a bump to support the valve. I wadded up a rag to support the valve, slipped a magnet inside a 19mm deep socket and bopped it with the deadblow hammer and it worked just like he showed. I tried both methods of getting it back together and all I accomplished was scratching up the socket with the Vise-Grips.

Then I remembered using a big c-clamp and a modified brass bushing to do this about 30 years ago. And then I remembered seeing the modified bushing recently so I dug around and here's my GoldWing valve spring compressor (note the telescopic magnet to fish the collet out)

Valve spring compressor.JPG

Valve spring being compressed.JPG

So that becomes easy. The plan is to remove the valves one at a time, lap the valve, install a new valve stem seal and re-assemble.

If I can find a suitable piece of tubing I'll lap them this way

[BikeMaine]

That is a wicked cool trick with the tubing.