31-05-2018, 09:31 AM
I recently had my engine out (1937 three bearing) fit a new rear main oil seal,clutch linings and recut valve seats etc — I didn’t look at the bottom end. Having got the engine back in it became apparent that one or two big ends were, shall we say, drawing attention to themselves. I couldn’t face taking the engine out again so ( with apologies to our Welsh/Yorkshire friends) resolved to become an oily coal miner and see if I could fit new shells from underneath. A couple of new ramps at half price from Halfords helped and after an hours work the sump and gauze were off. Removal of the end caps revealed a good deal of wear and cavitation in the shells so a day later I was back with a set of new shells, big end bolts and lock nuts. Then the fun started — I don’t think I’ve ever had such a fiddly job to do in my life as trying to get those new bolts into place from underneath, not helped by them being a tight fit. In the end I used the old bolts with new nuts, torqued up to 18lbs which I reckon is tight enough.
Would I do this again? I guess I would but fitting new bolts is really a job to be done from the top before fitting the block back. Level of happiness having got job finished — massive!
Charles
Would I do this again? I guess I would but fitting new bolts is really a job to be done from the top before fitting the block back. Level of happiness having got job finished — massive!
Charles