Followup to F26 With Mercruiser running issue

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akwalker
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Posts: 129
Joined: Sat Jul 23, 2011 9:07 pm
Location: Oneida Lake, NY

Followup to F26 With Mercruiser running issue

Post by akwalker »

Found the problem :D First, I wanted to thank all those that responded, I really appreciate it.

After much troubleshooting, and ruling out, I found that the Pertronix electronic ignition that the previous owner had installed was at fault. I checked the timing at idle, and faound that it was about 16 degrees BTC instead of 8. Changed the timing to 8, and took the boat for a run. It was worse than ever, just would not make power, so I started advancing the timing a little at a time until the boat ran reasonably well. After about 15 minutes, it started running like garbage again. I checked the timing, and it was back to 16 degrees BTDC at idle.

Found a local marina with a used Mallory, points equipted distributer. Sold it to me for $50.00. Installed the breaker plate, points and condensor. Gapped the points, set the dwell, and went for a ride. Boat runs like it should.

There's alot to be said for old school ignition systems!!

Thanks again.
1981 F-26 hardtop
"Gracious Lady"
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