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200 cranking / starting trouble
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island200 View Drop Down
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Joined: 06 Jul 2010
Location: P.E.I., Canada
Points: 7 		Post Options Post Options   Thanks (0) Thanks(0)   Quote island200 Quote  Post ReplyReply Direct Link To This Post Topic: 200 cranking / starting trouble
    Posted: 06 Jul 2010 at 9:14pm

We have owned our 1975 200 for 30 of its 35 years.  It has always been a hard starting tractor.  Are these tractors prone to some sort of hydraulic pressure buildup, at starting, that would make the tractor hard to start?  This is a tractor that I have been extra vigilant to maintain the electrical system on since I thought this would be the logical place to start.
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 19590 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 06 Jul 2010 at 9:26pm
200's were hard starting because they were only 15 to 1 compression instead of 16 to 1 like 180-185-190-190XT. When overhauling I usually installed the higher compression stuff. Lowering injector pressures to 2800 psi from 3400 psi does help as well. Lucas brand starters were a negative versus a good old Delco-Remy starter.
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Joined: 24 Sep 2009
Location: Wisconsin
Points: 767 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Kcgrain Quote  Post ReplyReply Direct Link To This Post Posted: 06 Jul 2010 at 9:31pm
If you lowered the injection pressure form 3400 to 2800 what did you do about the timing? It would be advanced quite a bit from an early injection
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Joined: 12 Sep 2009
Points: 19590 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 06 Jul 2010 at 9:40pm
Nothing....try it, you'll like it. Older 200's I  oft times changed to advance so the timing could be retarded down to 18 degrees BTDC instead of 24 degrees BTDC  to help starting. The injectors at 3400 psi are asking too much of a "DB" Roosa-Master pump, especially if the cranking speed is the slightest bit slow and the inj pump has much wear on it.
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