Engine Mount Nuts

[Rich Novak]

1988 mercruiser v6 205 hp.
Trying to align the engine.
Question is,
What size is the nuts holding motor to the motor mounts .
I tried 1, 1.1/8. 1 1/6. 27 mm. No luck
Thanks,Rich

 

[Bt Doctur]

1 1/16 usually unless there heavily rusted

 

[Rich Novak]

1 1/16 usually unless there heavily rusted

I tried 1 1/6 w
Wrench kept slipping off.
The nut is.
About. Half the size of a reg. Nut is also looks to have a washer built on .
The nuts are all the way down so I have to use a closed end wrench.
My engine has to go down but not much room if any.
Is it possible to raise the rear to align it.

 

[Bt Doctur]

If you need that much adjusting something is wrong. Was the drive difficult to remove? This is a sign of collapsed rear mounts.http://www.boatfix.com/merc/Install/gas/86017211.pdf

 

[Rick Stephens]

If you need that much adjusting something is wrong. Was the drive difficult to remove? This is a sign of collapsed rear mounts.http://www.boatfix.com/merc/Install/gas/86017211.pdf

Just because I am currious, do you have a picture of what collapsed mounts look like? Enquiring mind(s) want to know.

 

[Rich Novak]

I don't think it is collapsed, it looks like the one in the. Manual

 

[Bt Doctur]

When the rear mounts are installed in the housing they protrude beneath the housing and the fibre washer should be able to spin around. When it fails the rear mount squats down on this washer.
Have a housing with bad mounts, will post a pic tomorrow. Another way to tell is by removing the rear bolts and feeling if the bushings are the same recessed height.