CAV DPA Pump problem and ID

   / CAV DPA Pump problem and ID #1  

scotia900

New member
Joined
May 20, 2022
Messages
1
Tractor
Harry Ferguson TEA 20
Hi,
New to the forum and new to vintage tractors, Recently purchased (in France) 1950's Harry Ferguson fitted with a Indenor 4.88 engine, plate says tea 20 but I believe the european model should be TEF with a diesel engine, anyhow I knew the owner and had seen the tractor running fine, it then just stopped, with no diesel reaching the inectors, the owner believed the govenor had failed and removed the pump, it then stood for two years, then I bought it.
I removed the govonor plate and saw that the springs and sliding plate etc, inside seemed to be working fine so I replaced the cover. I removed the filter, springs etc from the fuel line into the pump, and they seemed fine, I poured wd40 into it and spun the pump, after about 20 minutes it decide to start pumping out the injector feed pipes. I replaced the pump back on the tractor and poured diesel direct into the pump and it fired up and ran for 5 mins, I then stopped it as the rad was not hooked up. Put it all back together and we're back to no fuel to the injectors, the pump is priming up and I can hear fuel returning to the fuel tank, but nothing to the injectors?
The inside of the pump looks too much for me to take apart, but I am struggling to find the pump model incase I can find a replacement one or even a rebuild kit.
any Idea's from the photos please, the best I can read is, CAV ROTADIESEL: TYPE 700C: MOD 4/88 DPA 44 4400 SERIAL: 14958 OL (POSSIBLY) but can't seem to find this model,
There also seems to be a washer missing from the filter/prime set up (3rd pic)
Any advice please,
 

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