Re: This may be the first time this has been asked

Posted by jdemaris on November 04, 2006 at 18:57:38 from (69.67.234.10):

In Reply to: This may be the first time this has been asked on posted by PJBROWN on November 04, 2006 at 18:02:49:

My brain is a little foggy at the moment, but are you talking about a CAV roto-diesel? If so, they are easy to turn down or up - much easier than a Stanadne/Roosamaster. They are based on the Stanadyne pump however - but somewhat different. CAV bought the rotary-pump rights from the company Vernon Roosa created (Stanadyne).
Anyway, I wish I had a photo I could mark for you - it would be easier. I haven't turned one up, or down in years -but it was a common thing when I worked for Deere. Especially for farmers who wanted to take their tractors to the county fair for pulls. We'd turn them up, and then turn them down, every year.
You take the timing window off the pump. There are two plates - side by side and they are held together by - as I remember - small bolts - maybe something a 10MM wrench or a 5/16" will fit? You loosen them just enough so you can make the plates move in respect to each other - the mounts the bolts fit through are slotted. Moving one way turns fuel up - and the other way down. It sounds complicated, but it's not - once you see it. Just make small moves at a time, retighten, and then try it. A small amount of movement makes a big difference. If you turn it too high it will blow a lot of black smoke, and if too low - it will start hard and lack power.
Maybe someone out there can describe it better detail. But - to go through the time and expense of removing that pump - and sending to a pump shop - for a ten minute adjustment sounds a little silly to me - unless you are not mechanically inclined and have lots of money to through away.

Replies:

• Re: This may be the first time this has been asked low budget 04:04:34 11/05/06 (0)

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