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Borch

Compression Specs for a 93 Mercuty 60hp 3 cyl

9 posts in this topic

Any one have these handy? For some reason I can't find them in my shop manual. All 3 cyl are 115 psi.

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Nope, but I have the same motor and mine ran about the same when I bought it last fall.

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Rebuilt the carbs today and ran several other test as I was having some issues. Carbs wre still factory with a lot of hours ofn them. Checked the reed valves abd they looked good as well. It's running great in the yard now with the muffs on so I just need to test it out with some load on the lake.

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115lbs is a good reading, but it's more important they are all at same PSI with 10% max difference in between.

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115lbs is a good reading, but it's more important they are all at same PSI with 10% max difference in between.

Right on...

marine_man

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There were all within 1 lb of each other which I was happy with. Hit the lake and after a bit of fine tuning it's running like it used to 5 years ago.

Life is good again. smile

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Great to hear Borch.

We need to hit Mille Lacs as soon as I get home. I should have my leadcore set up ready by then.

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Hey Borch

Welcome back

How 'bout going to the Idaho/Montana thread and giving us an update on your trip "out west" ?

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Hey Borch

Welcome back

How 'bout going to the Idaho/Montana thread and giving us an update on your trip "out west" ?

Had a great trip. I'm going to try to post a few pics in there when I get a chance.

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