Re: Farmall 560 and 660 Diesels

Posted by Hugh MacKay on November 18, 2006 at 02:32:42 from (216.208.58.132):

In Reply to: Farmall 560 and 660 Diesels posted by Weldin Man on November 17, 2006 at 17:40:00:

I think Wardner is basically correct when he states about same hp at same rpm. 40+ years ago I wanted a bit more than 1800 rpm on my 560 running a forage harvester. We turned it to around 2200 with hp results around 75 hp. Not really a whole lot different from a 660 or 706.

I later got an IH technician involved in pump settings and we achived 105 hp at 2200 rpm. We later cut it back to 90 hp and ran it that way for 11,000 hours. At 11,000 hours it did deposit a couple of pistons in the middle of barn yard, on a silo blower. Interesting part on that one is it was an aftermarket piston and sleeve kit with only very few hours that blew up. I've never been sure whether piston and sleeve kit or the rebuilder was the problem. 560 was still the most economical hp I've ever run. We got a lot more hours out of 656, however it was all at 2000 rpm and 65 hp.

The bottom line is, I've never made as much profit in a given year, as I did in the late 60s, early 70s farming with 560D and 656D. I've never matched it in actual dollars since, let alone give consideration for inflation.

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