Re: 301 LP engine on gasoline

Posted by K.B.-826 on February 27, 2007 at 15:20:36 from (68.115.110.247):

In Reply to: 301 LP engine on gasoline posted by Dan Dargeloh on February 27, 2007 at 13:58:23:

The gas version has a hard enough time lasting on regular pump gasoline for anything other than light work. 93 octane is recommended when running hard. As long as you're in there, carefully measure the bores, hone or have them machined oversized if needed, and install new gas pistons, as well as wrist pins and bushings. Those engines are famous for developing a knock as the wrist pins wear, so I would definetly recommend starting with new parts. The LP head and manifolds should work fine. Make darn sure your valve guides, valves, and seats are good, as burned valves was the other major problem. Oil runs down the valve guides and forms deposits on the valve, which causes poor heat transfer from the valve to the seat. This is why LOW ASH oil is the only oil that should be used in these engines. Your Case-IH dealer will have it, as will any good farm oil supplier. Consider using new head bolts, make sure the head and block are flat, give the head gasket a light coat of hi-tack sealer, and retorque the head bolts after you have had the engine hot and under a good load for a couple hours. Once the engine is just cool enough that you can stand to work on it, crack each head bolt loose and retorque to 95 ft lbs. one at a time in sequence.

Replies:

• Re: 301 LP engine on gasoline Owen Aaland 21:58:12 02/27/07 (0)
• Re: 301 LP engine on gasoline Dan Dargeloh 17:04:29 02/27/07 (0)

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