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Gray Marine 4-112

Old Marine Engine » Gray Marine Gas Engines - 4, 6, and 8 cylinder » Gray Marine 4-112 « Previous Next »

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Robert A Bohmer Jr
New member
Username: bohmerjr

Post Number: 1
Registered: 10-2016
Posted on Tuesday, November 01, 2016 - 05:55 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I'm trying to find out when my motor was built. The serial number ( according to papers I got with the boat ) is 101960.
Also, what should the plug gap be? I was mistaken about the engine ( thinking it was a Sea Scout based on the same papers ) and set the gap at .0035 and need to change the gap if that's not right. If it helps determine the age, the boat is an 1965 Alberg 30.
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Jim Staib
Senior Member
Username: drrot

Post Number: 211
Registered: 09-2008


Posted on Tuesday, November 01, 2016 - 09:30 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

No letter in the serial number?

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