Thread: 94 Merc Mariner 175 question...
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Unread 01-12-2008, 01:45 PM
bigshrimpin bigshrimpin is offline
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Join Date: Mar 2003
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That motor has lower compression b/c of the relief holes . . . so don't be alarmed when you see 100psi or less in all 6 cylinders. As long it's even . . . then your good.
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