888 with blow by-what to do?

[Tipsy]

Hi all. I have a '75 888 with a problem. My excellent mechanic says I have blow by causing a smoky problem at the back of the engine after running for a bit. It's not an oil leak and it's not the engine coupler. Before I ask him what the next step is I wanted to ask all of you. What is the repair for blow by? Ring job? Complete rebuilt block? STP?
Thanks!

 

[mkast]

Re: 888 with blow by-what to do?

It's only thirty-three years old, get it involved in sports so it won't go bad.
Rebuild the engine.

 

[Haut Medoc]

Re: 888 with blow by-what to do?

Probably time for a a rebuild.....
I'd do a compression test first though.....

 

[f_inscreenname]

Re: 888 with blow by-what to do?

At least rings and if you are doing that you might as well do the rest.

 

[MikDee]

Re: 888 with blow by-what to do?

You could try running a can of SeaFoam engine cleaner through it to free up the oil rings, maybe that might help, or, it's rebuild time, or you maybe better off getting a rebuilt 351cu in Ford, and using all your external parts that fit.

 

[Haut Medoc]

Re: 888 with blow by-what to do?

You could try running a can of SeaFoam engine cleaner through it to free up the oil rings, maybe that might help, or, it's rebuild time, or you maybe better off getting a rebuilt 351cu in Ford, and using all your external parts that fit.

Careful, the boat will need some modification to fit a 351......

 

[f_inscreenname]

Re: 888 with blow by-what to do?

Careful, the boat will need some modification to fit a 351......

The motor is wider for one. Also good luck finding a 351W. They are getting rare.