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hi guys my brothers having some issues with his outboard runs fine compression all good will run for 30min or longer with no issues but then when go past 3k it misfires and the overheat alarm goes off. If he starts and goes full throttle has no issues seems to only misfire once it’s warmed up...
Hi people some input on this would be great and put my mind at ease. I have fully rebuilt mercruiser 5.7 done around 35hrs now. Was concerned with the old exhaust manifold and risers as they were the old ones and showing there age. Replaced them this evening and ran the boat and after a good run...
Hi guys some input would be great and possibly put my mind at ease. My 5.7 vortec motor has had a complete rebuild and after putting around 15hrs on it now to break it in I’ve just pulled the oil and checked the compressions and all 8 cylinders are 150psi my question is the vortec engine my...
hi people after a little input after rebuilding my engine. Just rebuilt my late Vortec block but using my old running gear and ignition for my old 260 I’m using the thunder bolt ignition system just wondering if I should be setting my timing at 8’ or 10’ on the timing marks?
also any ideas on...
