Compression after replacing rings 1943 H

Jim Isler · Dec 23, 2008

I've replaced the rings after honing and cleaning the sleeves, which looked OK. Head is back on and torqued to spec. Before I put the project back together, what sort of compression should I be seeing, or do I have to run the engine to really "seat" the rings.

Thanks

Steven f/AZ · Dec 23, 2008

My overhauled H with the overbore sleeves and a distillate head had 120 psi before being run at all. Couldn't tell you what the compression is now.

Some specs are available at http://www.weberstractorworks.com

Janicholson · Dec 23, 2008

You can check it, but running first it will be more assured to be accurate. 120 to 140 depending on what pistons, and head combo. It could be higher if Gas head and high alt. pistons. Set the valves corectly, then check compression (no manifold is OK), all plugs out, full charge in battery. JimN

Compression after replacing rings 1943 H

Jim Isler

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Steven f/AZ

Well-known Member

Janicholson

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