blown head gasket yet no water on spark plug? 1992 Evinrude 90 VRO

scmutiger · #1 June 10th, 2008, 12:03 PM

I am wondering if this is possible? Also, could a leaking head gasket only affect the compression on one cylinder?

115 lbs on 3 of 4 cyclinders -- went from 80 to 85 lbs on the bad cylinder after a decarb on muffs.

waiting on gasket and manual to be delivered before I pull the head....might do another decarb in the meantime.

Thanks,
scmutiger

tashasdaddy · #2 June 10th, 2008, 12:30 PM

head gasket does not always blow into water passage. yes it can effect only one cylinder.

Joe Reeves · #3 June 10th, 2008, 12:33 PM

Remove the cylinder head now so that you can relate to us what you find. You'll need to remove it anyhow.

kenmyfam · #4 June 10th, 2008, 01:33 PM

As the above 2 posts. Gasket can blow anywhere, not necessarily just the waterways. It will still lose compression and yes it can only affect the 1 cylinder. It will only get worse the more you try and use it.
Lets get the head off and see what is going on.

scmutiger · #5 June 10th, 2008, 02:06 PM

Thanks to everyone that replied. I will get the head off this weekend and post back with some pics....