Resleeving a GS1150 Cylinder Block

[Ecklund]

quebec express;

too bad about some of the idiotic responses. lots of big hat no saddle stuff on this site at times

I don't know the answer to your question, so I did not reply.

Your english is fine.

"Big hat no saddle..." Good one.

I know im not throwin rocks at anyone about their English either. Mine seems to get worse month by month.

[Big Jay]

The 1260 sleeve is 3.275" OD. Years ago, the 4 valve limit in pro stock was 1294cc. That was a 79mm piston. The sleeve used was 3.300" I can't remember if we put that sleeve into 1100 blocks as it was a lot of years ago.

The reason that the breakthrough can be a problem, is that crankcase pressure can force oil up the outside of the sleeve and it only has to go less than 1/2" and it is out in the airstream.

On the big bore 750 Hondas, we get the breakthrough. Our fix is machining a counterbore in the bottom so we can force an o'ring in there. We make it deep enough for double o'rings.

[quexpress]

The 1260 sleeve is 3.275" OD. Years ago, the 4 valve limit in pro stock was 1294cc. That was a 79mm piston. The sleeve used was 3.300" I can't remember if we put that sleeve into 1100 blocks as it was a lot of years ago.

The reason that the breakthrough can be a problem, is that crankcase pressure can force oil up the outside of the sleeve and it only has to go less than 1/2" and it is out in the airstream.

On the big bore 750 Hondas, we get the breakthrough. Our fix is machining a counterbore in the bottom so we can force an o'ring in there. We make it deep enough for double o'rings.

Your insight is much appreciated!
Thank you!

[gearhead13]

Yup, oil leakage, I had lots with mine, really messy. Had the machine shop reinstall the sleeves with a good layer of threebond, no more leaks. I was told by a few that the weaker block around the sleeves would only make a difference if you were going turbo or nitrous etc. Mine has 170 - 190 psi compression cold/dry, no sealing or distortion problems.

[salty_monk]

The question made perfect sense as written...

Chuck you need to get out more!

[JEEPRUSTY]

That is funny

Big hat no saddle!!!!
Funny yes Sir it is. Must use it next chance I get.

Oh yes and the guy's English is fine.

[quexpress]

Yup, oil leakage, I had lots with mine, really messy. Had the machine shop reinstall the sleeves with a good layer of threebond, no more leaks. I was told by a few that the weaker block around the sleeves would only make a difference if you were going turbo or nitrous etc. Mine has 170 - 190 psi compression cold/dry, no sealing or distortion problems.

Good info!
Do you know if they installed threebond in the whole bore, or only near the bottom portion to "clone" the OEM rubber o-ring set-up?
Thanks!

[quexpress]

The question made perfect sense as written...

Oh yes and the guy's English is fine.

At first, I thought so too but "some" of these replies made me second guess the "semantics" side of my question.

Thanks!

[gearhead13]

Good info!
Do you know if they installed threebond in the whole bore, or only near the bottom portion to "clone" the OEM rubber o-ring set-up?
Thanks!

No, they spread it over the entire length, I could see it at the breakthrough spots from the outside in between the bores. Very hard to see the breakthrough from the outside, hidden in between the bores.

[quexpress]

No, they spread it over the entire length, I could see it at the breakthrough spots from the outside in between the bores. Very hard to see the breakthrough from the outside, hidden in between the bores.

Thank you!