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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
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Roosamaster Pumps ???

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swamp yankee

02-16-2004 17:54:40




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I have a 310 Waukeshau w/the Roosamaster Pump. I have just put a larger Turbo on and would like some help from You all as to tuning the Pump.Thanks in advance.




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WFE

02-16-2004 18:57:39




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 Re: Roosamaster Pumps ??? in reply to swamp yankee, 02-16-2004 17:54:40  
Well, you could take it to a diesel shop and have them put it on a calibration bench. Tell them what you want for power, and they can probably set it to deliver. If you're a bit less particular, you can tune it yourself, and with the bigger turbo, you should be able to get well above 150 hp, probably 175 or better. The two adjustments that I have made are to the 'torque' screw and to the 'fuel' screw. The torque screw is oriented at a 45 degree angle from vertical on the back side of the top square part of the pump. There may be a threaded cover cap to remove to access an allen head screw. This screw is turned out (counterclockwise) to gain torque rise or 'lugging' ability. This screw can be turned out quite a bit, although I've never gone more than 4 turns. The other screw is located inside the pump, but is accessible with the pump on the engine. Remove the square cover on the top side of the pump. There'll be fuel inside that you will probably want to drain so that you can see and work inside this area. The engine will have to be rotated until you can see/feel a small allen screw at the bottom of this cavity. There is a spring that is kind of in the way that you can also remove to improve the access to this screw. This screw is turned IN or clockwise to gain power by increasing maximum fuel delivery that you can utilize with your bigger turbo. With this screw, a little bit does a lot, so 1/2 to 3/4 turn will give you a lot of power. I've never gone more than 1/2 turn, which is approximately 150 hp, but the larger turbo should allow you to do so if you want. Best of luck and enjoy!

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swamp yankee

02-17-2004 17:16:59




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 Re: Re: Roosamaster Pumps ??? in reply to WFE, 02-16-2004 18:57:39  
Thanks for the replies. I will use the Tractor, a 1950-T for pulling, There is another threaded cover cap that has an allen screw. This is located on the bottom of the pump, midway and faces away from the block. What does this one do? I believe,its faded, the pump is a model 250.Also to WFE i have enclosed my E-mail address could you E-mail Me as I know you have quite about of knowledge regarding the 1950-T's.

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J. Schwiebert

02-17-2004 18:52:36




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 Re: Re: Re: Roosamaster Pumps ??? in reply to swamp yankee, 02-17-2004 17:16:59  
Sounds to me like you are describing the advance mechanism. It works off of transfer pump pressure.



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swamp yankee

02-18-2004 19:45:02




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 Re: Re: Re: Re: Roosamaster Pumps ??? in reply to J. Schwiebert, 02-17-2004 18:52:36  
How would You correctly set this advance???



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ajax implement

02-16-2004 18:42:59




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 Re: Roosamaster Pumps ??? in reply to swamp yankee, 02-16-2004 17:54:40  
Is this for pulling? What model pump do you have? If this is an 1855, I think the injectors in the 1955 have larger holes and of course there are places that drill them larger. How much preformance do you want? Have you had it on a dyno? How much boost do you have now? Have you though about reinforcing the bottom of the block.



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