97 Volvo 3.0 timing and ignition issue

hmbryan2176

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Joined
Jul 11, 2016
Messages
1
I purchased a 97 Regal that has the 3.0 Volvo Penta motor. It was ran to point of overheating and then sat for a number of months with water in it. I recently had the motor and heads fully rebuilt. I purchased new manifold and new riser, rebuilt carb, replaced starter and various other components. When i took boat out on water it would run for 20-30 minutes fantastic and then with no warning sputter and die. It then wouldn't start back up until 30 minutes or more, later. I thought I either had a bad pickup, ignition module or bad coil. The pick up coil when removed was definitely looking bad, you could see it had overheated. I replaced each of these starting with the coil and eventually replaced all three and had no spark at all and boat wouldn't start. I figured I had to have gotten a bad ignition module, (I ordered the parts online). I went to local parts store and purchased a Delco ignition module and boat started right up after installation; ran great on trailer in neutral. I took boat out yesterday and it was running very bad under load. I fiddled with timing and got it running pretty good. This is when problems started. After running a few miles at 3-4000 rpm the boat sputtered and died, (same symptoms as before). The breaker under ignition key also tripped and I could not reset it for period of time. After a few minutes i was able to push in breaker and boat started right up. Again, after a few minutes, same problem. Could there be a problem in wiring harness? The first time in water the coil and ignition module were definitely working. Could there be a short that caused both of these to go bad? I would think it's unusual for both of these to fail at same time? The timing seems very touchy too. Manual says to put at 0 degrees but if i do this it will almost stall out when applying throttle and will run bad.
 
Joined
Oct 7, 2012
Messages
54
Are you using the jumper wire to put the module in base time mode to set the timing to the Volvo spec?
 
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