seven 202 #1 Posted April 11, 2021 I purchased a k301 at a auction and it needs a bore job was wondering if the crankshaft will need to be removed in order do bore it?? Share this post Link to post Share on other sites
squonk 41,155 #2 Posted April 11, 2021 Yes. The motor will be needed to be completely torn down Share this post Link to post Share on other sites
953 nut 55,321 #3 Posted April 11, 2021 Your engine block will need to be devoid of ALL removable parts including the crankshaf bearings. You should take the crankshaft with you so it can be measured too. 2 Share this post Link to post Share on other sites
Mickwhitt 4,642 #4 Posted April 11, 2021 If it needs reboring I would have everything replaced while its torn down ; piston and con rod obviously, crank ground, new valve guides and valves, new crank bearings, all new gaskets and seals. It really is worth getting it done in one go while the engine is stripped out. Nothing worse than doing a few bits to find an oil leak or shonky bearing in a few months. Mick 4 Share this post Link to post Share on other sites