CAV dpa injection pump set numbers?

ljm

Member
Hi

Can anyone here explain the set number off a CAV DPA injection pump to me?


I am looking at replacing the pump on my 1850.
The set number on the pump that is on it now is
RR67/750/6/2600

I have a pump off a Massey available to me. The set number on it is
SR63/900/6/2350

I know the last four numbers are the rpm. and the 6 on both pumps are the spring positions.

What do the two letters and 2 numbers in the first group mean? and what does the second group of 3 numbers mean?

Thanks
Lloyd
 
One think you need to also look at is the drive hub for the Oliver pump is different than the M-F pump unless yours has been changed. The 3 numbers are idle RPM.
 
Have you checked pump timing? There were different settings for those 1850 pumps as well. I used to have about 4 pages of how to decode that information but next week it will be 42 years since I worked for an Oliver dealer and I have forgotten a lot of things.
 
Those are the setting code numbers, what's needed is the complete 326 number, then I can look up what you have. Early engines used the small quill spline drive that had problems, late pumps use the heavier uprate drive shaft.
 
Letters are not important, first number set is fuel full load in CCs, second set is test stand speed for checking full load, third is governor spring location code, last is high idle no load engine speed.
 
I have a CAV fuel injection pump with a DPA 3269F941. The DSA is 452. Series is R45022P/7/ MOD
SX59E800/2/2620P How do i search for a replacement pump?
 
I have a CAV fuel injection pump with a DPA 3269F941. The DSA is 452. Series is R45022P/7/ MOD
SX59E800/2/2620P How do i search for a replacement pump?
Welcome to the forums.

I am going to suggest you make a new post of your own to start a new thread on your issue. Many will see the date of the original post (2017) and pass over it because of that. In your new post include as many details as you can. Good luck.
 

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