Gs 1000 head pitted??

[Nessism]

There are various methods to repair threads. Helicoils are the cheapest and easiest.

[oldgrumpy]

Putting it back together the PO who last took it apart stripped the threads on one of the cam shaft cap bolts. What is the best way to repair this stripped hole? A helicoil? Or is there another method?

.................. hi i had a stripped cap bolt on my rocker ,,,, i ended up going up the nearest size in metric and i,ve had no dramas ,,,, you would not know if you were looking at it regards oldgrumpy

[Dogma]

That mark won't hurt anything, although if it were my head I'd have it skimmed to clean up the surface (but not remove that mark). The hole corresponds with a pocket in the cylinder, and maybe the gasket, which obviously held a corrosive material of some sort. The critical sealing surfaces on the head are around the cylinders, the oil passages studs, and the cam tunnel area. Corrosion in other areas of the head is not important. My machinist refused to cut my 1000 head more than a light skim, even though there were some corrosion marks left behind. Said they won't hurt anything.

I'm thinking that pit is a casting defect, and not corrosive pitting. Either way, it's unimportant. I agree, it's no problem. Skim cut the rest of the gasket off, or get busy with a green Roloc. Reassemble and enjoy.

[Rockgs1000]

did you just tap the hole with a tap and place the next size bolt in the hole? It just pulled the threads right up the shaft of the bolt. Just a smooth hole in the head now. What about drilling out the cap to accommodate the larger bolt?

[tkent02]

It's a very common problem with lots of good fixes. Do a search.