1964 Johnson 90hp V4 Meteor rebuild question

roscottjr

Petty Officer 1st Class
Joined
Jun 10, 2006
Messages
330
I have a 1964 Johnson Meteor 90hp V4 model number V4ML-10R. The engine runs great. I just did a compression test and the good news is all cylinders tested the same plus or minus about 1 psi. The bad news is that the compression is only 37psi. Can I get by with replaceing the rings and head gaskets or will I need to do more? Also, does anyone know the part numbers for the rings? I also did a leak down test and it goes from 37 to 0 in about 4 seconds.

I also have a 1971 Evinrude 60hp Triumph that tested the same only with 26psi. Will rings and head gaskets take care of this one?

Thanks
Robert
 

jimmbo

Supreme Mariner
Joined
May 24, 2004
Messages
13,696
Re: 1964 Johnson 90hp V4 Meteor rebuild question

I would try a different compression gauge before tearing the engine apart.
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: 1964 Johnson 90hp V4 Meteor rebuild question

can't answer your question till you get inside and see whats there.
 

roscottjr

Petty Officer 1st Class
Joined
Jun 10, 2006
Messages
330
Re: 1964 Johnson 90hp V4 Meteor rebuild question

I am going to invest in a new compression tester before doing anything due to the fact that the engine runs great. I just cant bring myself to believe my compression test was accurate.

Question about these forums, How do I get it to send me an email when someone replies? I thought I had it setup like that but it only sends me an email when I reply to my own post.

Robert
 
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