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Search: Posts Made By: MikeB
Forum: Troubleshooting 02-11-2020, 01:12 PM
Replies: 22
Views: 3,646
Posted By MikeB
I just finished with the manifold and block...

I just finished with the manifold and block pressure tests, both held 20psi for about an hour.

The reason for the sketch’s

I was thinking maybe the exhaust hose from the muffler to the...
Forum: Troubleshooting 02-10-2020, 07:09 PM
Replies: 22
Views: 3,646
Posted By MikeB
Thanks Mo! From your sketch I think I see my...

Thanks Mo! From your sketch I think I see my problem now.

My riser is limited to its current height because of the cockpit floor. The raw water discharge line and exhaust hose from the muffler are...
Forum: Troubleshooting 02-10-2020, 04:55 PM
Replies: 22
Views: 3,646
Posted By MikeB
Update... I think I have come to the conclusion...

Update... I think I have come to the conclusion it was seawater backflow from the exhaust. I did 3 more oil changes today running the engine in between and also pulled and checked the plugs in...
Forum: Troubleshooting 02-10-2020, 11:50 AM
Replies: 22
Views: 3,646
Posted By MikeB
The coolant level has not changed. The block vent...

The coolant level has not changed. The block vent is fitted with the pcv valve kit and looked dry when I removed the hose from the intake spacer between the manifold and carburetor
Forum: Troubleshooting 02-10-2020, 11:46 AM
Replies: 22
Views: 3,646
Posted By MikeB
Ok compression checks came in at (the gauge I...

Ok compression checks came in at (the gauge I have is in 5 psi increments)
#1. Between 85-90psi
#2. 90psi
#3. 90psi
#4. 95psi

Now I pulled all the plugs at the same time to hopefully limit...
Forum: Troubleshooting 02-09-2020, 12:22 AM
Replies: 22
Views: 3,646
Posted By MikeB
Do I have a blown head gasket?

Hi All,
I apologize for the long post but I feel I should share all of the events that have led up to me thinking that I now have a blown head gasket. I have a new to me 1977 Pearson 323 with a...
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