Sealing the rings

[stanger2434]

Maybe we need to get a professional engine builder to give a word here. I was once told to always assemble and break-in using non-detergent. The reason, I'm not quite sure. Maybe the non-detergent doesn’t kling to the cylinders as well and you get a quicker break-in. All I can say as a hobbiest and X drag racer, that’s the way I’ve always broke in a motor. Other than put-er in high gear and let-er eat.

If it aint broke, don’t try to fix it . . . . .

Don’t get me wrong, I’m not challenging your experience, but this is the way I’ve always done it.

Steve W.

[Mike Bartlett]

So Stranger,

What is the reasoning behind using the ATF? Maybe a little less viscosity helping the rings seat with the cylinder better?

I honed my cylinders with a 240 stone then a 400 stone as recomended for Plasma-Moly rings. I coated the cylinders with Delo-400 15/40. They sure seem awfully smooth.

Mike

[Barry_R]

Originally Posted by stanger2434

Maybe we need to get a professional engine builder to give a word here.

Gee - I guess he told me

Oh - do a little research on bore finish as applied to the term "plateau finish" and you'll find that a glass smooth surface might no be the real ticket...

[dynoroom]

Originally Posted by Barry_R

Gee - I guess he told me

Oh - do a little research on bore finish as applied to the term "plateau finish" and you'll find that a glass smooth surface might no be the real ticket...

I guess it depends on your definition of professional.
That was why I let you answer this question.