stock model 100 question January 07, 2013 01:22PM
Im just curious to know how many cc's a stock model 100 rotary pump is capable of pumping thanks.
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Re: stock model 100 question January 08, 2013 10:30AM
I built one that was pushing 280cc with a GOOD 10MM head and other modifications.
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Re: stock model 100 question January 08, 2013 12:12PM
At what cost, and how do you know whether or not your pump has a "good" head? Are there external things that a guy can look for that will tell him that one model 100 is better than another?
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Re: stock model 100 question January 08, 2013 01:15PM
If it starts and runs its a GOOD one. Also the difference between a GOOD one and a BAD one is GOOD is nice and shiney and BAD is covered in grease and dirt and throttle linkage won't move.
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Re: stock model 100 question January 08, 2013 01:44PM
Well put, bad medicine. Very insightful. Does anyone out there with any intelligence have any input? I've never pulled anything mild enough to run a model 100, but I have heard that there were some model 100s that could push more than others. Curious if anyone out there knew how to identify these so called "special" pumps.
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Re: stock model 100 question January 08, 2013 02:22PM
Lol meant as joke, really 10mm is basically stock, you could still Farm with that. A 13mm is what is needed for any pulling, although an 11mm would work for a pure stock, mph class. As for external, you can't tell the difference between them, its all inside the Head.
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Re: stock model 100 question January 09, 2013 01:41PM
I have some governor parts that can cut governor response time in about half, helps to maintain extra couple hundred
rpm goind down the track. will not cause to over rev in rpm limited classes.
example, setting governor for 3000 rpm, tractor will ussually go down the track closer to 25-2600 under load.
where faster governor will hold 2800 ish.
920-680-8500
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Re: stock model 100 question January 08, 2013 01:46PM
If it starts good you do have a good head but inspecting the control sleeve for scoring and checking what it truly puts out for cranking on the test stand is the best way. Some are not machined as well as others
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Re: stock model 100 question January 08, 2013 10:31PM
Thanks for the info. I know I have a model 100 sitting on the shelf that came in on a dt-468 roller takeout that I bought once. No idea why it was on there, but thought it might be one of the better ones. All stock 100's had a 10 mm head on them? Or would this pump have a factory 11 mm head possibly?
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Re: stock model 100 question January 08, 2013 11:08PM
Not real sure but no 11mm Factory.
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Re: stock model 100 question January 09, 2013 05:27AM
If it helps you , I asked a diesel shop about 11 mm heads , an they said that the 11 mm was never in an ih rotory from the factory. But did say that some old Mack trucks used an 11 mm head in there rotory pumps
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Re: stock model 100 question January 09, 2013 05:24AM
message me,i can tell you anything about the m100 pump,,been building them 30 plus yrs
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