SOHC.co.uk Forums > CB750

Camshaft troubles

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Spitfire:
Yep, seen that before quite a few times, head off check for bent valves, clean out all the oilways, I always used to replace the cam towers as pairs but they are getting hard to find and expensive these days so give the remaining one a good check over before re using it. Check the pistons and rings as well, the middle cylinders tend to suffer from nipped up rings, had that on my K1 and my current F1. Check the oil pump screen for bits of metal as well, when rebuilding I only use genuine Honda head gaskets, I also only use a good quality oil and change it every 2 thousand miles and the filter every 4 thousand. Make sure also that you lay out all the parts in the order that you removed them so they go back in the same place that they came from. Cleanliness is next to godliness when rebuilding as those oil holes are mighty small.



Cheers

Den

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