Quote:
Originally Posted by Alpinestarhero
... Apparently, the problem was due to the camshaft bearings...I don;t know the technical terms so someone will have to help me out here, but the part you bolt down ontop of the camshaft was made in a completly differant place to the bottom part, so the two parts where never perfeclty (as much as perfect can get on a mass-produced head) mated. There was enough free play / clearance that the cam shafts would move around and pretty much wear themselves out after a few thousand miles ....
|
That sounds a bit weird. Is that right? I am not sure what they're doing these days, but I come from a time when bearing caps /top cover were always mated as a machined set to the head. ie caps are bolted in position prior to boring of camshaft tunnel and are not interchangeable between heads.