Re: Stan from VA farmall 230 engine??

Posted by Stan(VA). on June 21, 2006 at 07:38:44 from (66.82.9.36):

In Reply to: Re: Stan from VA farmall 230 engine?? posted by T.r.y. on June 21, 2006 at 03:13:37:

Can you post a picture of your piston, or any part numbers stamped on them? I looked again and realize that by the time they resized my pictures even smaller than I had them it gets hard to see the dome shapes on the IH pistons (since they were not as shiny as the Tisco). If you need it I could try emailing you one of the pictures directly to get a little better view.

The Tisco in the pictures (actually all 3 pistons) are 3-1/8" not 3-1/4". The Tisco is the one you get if you order for a Farmall C with the C-113 engine (3-5/16" lower sleeve OD).

The 3-1/4" Tiscos I referenced in my earlier post look totally different. Again, they are ~1/10" shorter on compression height and have a single level, rectangular shaped, raised step on the head that sticks up maybe 1/4". They are the ones you get when you order a kit for the Super C with the C-123 engine (3-7/16" lower sleeve OD). If you have the original block in your 230 (see part numbers in the earlier thread) these won't fit without custom machining and custom O-rings.

In the earlier thread you asked about the C-135 sleeves since that motor also has 3-1/4" pistons. I was in a hurry when I posted, but they won't interchange with the C-123(Super C block) because the lower sleeve OD is slightly larger than the 3-7/16", maybe another 1/64" (didn't memorize that one). Don't recall about the pin diameters, seemed like some of the later motors went to a smaller pin but I don't have my books in front of me. I have a spare set of C-135 std altitude firecraters at home and could check but that's a whole 'nuther animal.

For the best compression, lowest cost, and easiest overhaul on that block I would recommend the tisco 3-1/8" piston set (just make sure you clean the casting flash/ridges off the top of their pistons to avoid hot spots and detonation). Or if money is no object ;) find a set of 140/240 firecraters.
Stan(VA).

Replies:

• Re: Stan from VA farmall 230 engine?? t.r.y. 07:43:19 06/21/06 (0)

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