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Old 04-10-2020, 11:39 PM   #86
GB SISSON
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Join Date: Jan 2014
Location: Orcas Island Washington
Posts: 4,945
Default Re: What in Tarnation?

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Quote:
Originally Posted by Zeke3 View Post
FYI, the full load governed speed of the Cummins 6BT and 4BT on-highway engines of the late 1980's is 2500 rpm.
There are rpm calculators out there. My tires on the 59 were 33" 255 85r 16s. Gear ratio 4.11 . I'm guessing I was below my governed speed of 3600 rpms. In the treatise I downloaded on the SAE's site regarding Onan's development of this generator engine, they tested and ran at full load for 2000 hours at 3600 rpms under full load. They did this with 38 engines with no major repairs needed. They ran some under refrigeration loads for 20, 000 hours as well. All that aside, I have made some progress on this oddball project this week. Drained the gas from the tank yesterday and my son mowed the lawn with some of it today. Put 5 gal of diesel in the tank. Hoping for a startup tomorrow, maybe front clip on Sunday and deliver a load of beams to my ongoing supermarket remodel project early Monday morning. Maybe a bit optomistic, but if all goes well??????
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Owner/Operator of 'Jailbar Ranch' on the side of Mt. Pickett. Current stable consists of 1946 1/2 ton pickup turned woodie wagon with FH V8, 1947 Tonner Pickup (red) mostly stock with exception of a cummins 6at turbo diesel, 1946 Tonner Pickup (green) with 226 cu in 6 cyl flathead, 1979 Toyota landcruiser wagon, completely encased in 1947 Ford Jailbar sheet metal. Ok, cornbinder rear fenders..... 'Rusty ol' floorboards, hot on their feet' (Alan Jackson)
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