Hi Everyone!<br /><br />I have been in the forum for quite some time now, but didn't post much 
i was rather reading and absorbing knowledge You guys are great. The forum helped me alot with my project. Now, to get to the problem:<br />I come from Europe and bought a '94 Caravelle 1750BR in Michigan in november. The engine was dismantled (water in the cylinders), so i bought a new 3.0 GM and imported the boat & new engine to Europe. I combined the new base engine with stuff from the old engine (carb, alt, starter, pump,... ) - of course cleaned & repaired everything. The carb, alternator and starter were rebuilt. When we put everything together, we set the ignition timing to 6 degrees BTDC (that's what stood on the HEI label that came with the new distributor) - but the engine backfired when i accelerated fast on the hose so we set it to 8 degrees BTDC and the backfire was gone. Finally, after hard work, we tested the thing. It started right away on water, worked perfectly, no backfires, stalling aso. I tried to turn the engine off and on - perfect. Yet, when i tried to do that like 5th or 6th time, it wouldn't start. Just cranked and nothing happened. When i almost drained the battery it would start and ran like nothing happened. It thought it would be a dirt in the fuel or something like that, but when i ran the engine on hose yesterday, it did the same thing. The acc. pump is working ok, i can see the 2 shots of fuel pumping into the manifold when i push the lever. Any ideas? Should i set the ignition timing back to 6 degrees?<br /><br />Thanx in advance!
i was rather reading and absorbing knowledge You guys are great. The forum helped me alot with my project. Now, to get to the problem:<br />I come from Europe and bought a '94 Caravelle 1750BR in Michigan in november. The engine was dismantled (water in the cylinders), so i bought a new 3.0 GM and imported the boat & new engine to Europe. I combined the new base engine with stuff from the old engine (carb, alt, starter, pump,... ) - of course cleaned & repaired everything. The carb, alternator and starter were rebuilt. When we put everything together, we set the ignition timing to 6 degrees BTDC (that's what stood on the HEI label that came with the new distributor) - but the engine backfired when i accelerated fast on the hose so we set it to 8 degrees BTDC and the backfire was gone. Finally, after hard work, we tested the thing. It started right away on water, worked perfectly, no backfires, stalling aso. I tried to turn the engine off and on - perfect. Yet, when i tried to do that like 5th or 6th time, it wouldn't start. Just cranked and nothing happened. When i almost drained the battery it would start and ran like nothing happened. It thought it would be a dirt in the fuel or something like that, but when i ran the engine on hose yesterday, it did the same thing. The acc. pump is working ok, i can see the 2 shots of fuel pumping into the manifold when i push the lever. Any ideas? Should i set the ignition timing back to 6 degrees?<br /><br />Thanx in advance!
