Calling on injection pump guys!!!

JD Seller

Well-known Member
A good neighbor has a late model JD 4020 with the CBC Roosamaster pump on it. The tractor runs and starts fine but it has bad external leaks. Can you get a seal/overhaul kit for the CBC pumps???? I do the DB models all of the time as they usually just have a failed dampening ring. So is the CBC pumps something I could tackle???
 
Been a year since I resealed the last CB pump, think the kit is still available but expensive. Very few parts inside are similar to the DB/JDB model pump, and shaft seals and O rings have some odd sizes as well..
 
I had one done a year ago at Dairyland Diesel in South Wayne WI. He was reasonable. He said the seal kits are still available but not many of the inside parts. His number is 608-439-5560 give him a call and I am sure he will give you a good price on the complete job or just the parts. Tom
 
Kit # is an 18336 but changes.. The new kits are over 100.00
It requires a specials tool to set the metering valve height and end cap.
I guess you could get around that w/ a good pair of calipers or depth mic.??
IF its just leaking at the throttle, some folks have good results just replacing the orings
while the pump is still on the engine.
 
Verify where it is leaking first. I have had a couple that leaked from the drill plugs in the head. DIS in Deforest, WI can drill out the plugs and reseal them. Not every pump shop has the tooling for that.
 
OK as a JD tech the older CB pumps are cranky to work on, for a moderate cost MID South Diesel has the repair parts and kits, The cb are easier than the DB to work on most parts were from other injection applications, they were built to be farm repaired in the backwoods
 

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