Perkins 4.236 dpa hydraulic fuel pump leak

[Rob Toronto]

Got an old Perkins 4.236 that runs like a top. One small problem though. Where the throttle enters the fuel pump I've got a constant slow drip with the engine is running. I'd really like to avoid removing and having the pump rebuilt for a small leak. Is it possible to replace the seal without turning it into a major rebuild?

[Diesel Bill]

Yes, you take the 2 nuts off the cover and remove it. Undo the linkage and push out the shafts. replace the O-ring seals and reinstall the cover. You must get the springs attached in the proper positions. Watch u-tube videos 1st. Not hard to do just have to know how.
Seal kits are less than $15.00 on e-bay from tractor supply places.

[Rob Toronto]

Thanks Bill. I searched, but all I could find was for the CAV type with the rectangular/ boxy top. I've got a DPA type as apposed to the DPS and haven't been able to find anything. It would be much appreciated if you can point me in the right direction.

[Diesel Bill]

http://www.solidebolide.nl/downloads...ction-pump.pdf
Grand son just put this in for me. Supposed to be DPA type but looks like CAV. I haven't looked at all the sites yet on google but many more besides this one.

[Diesel Bill]

I think there's also a Japanese version with a Kiki pump. Not very familiar with them.

[Rob Toronto]

Thanks Bill.
Great manual, too bad it isn't the right one for a DPA
I called a rebuilder this morning and they said they'd do a complete re & re for $700. Looks like I'm going to have to bite the bullet and pay for the whole monte.
The Scotsman in me isn't very happy right now, but I guess it will give me some peace of mind knowing it's been fully rebuilt by a pro.