I am back to work on my Cockshutt 570 Super pulling tractor and need help fixing a leaky PSB6A pump.
The Ole Girl has been sitting in my garage for 5 years after confirming fuel was leaking into the engine oil.At that time it had a oil pan gasket leak and I thought the oil had a faint fuel smell when I drained it to fix the leak.After getting it back together with no more oil leak, it sat for a month until the next pull.Before starting it I checked the oil level and it was a couple qts.over full of diesel fuel.I'd figured if it did leak fuel it would take some running time to show up.Apparently it also leaks when parked.
Due to some health issues I've never got caught up to where I could fix the fuel leak problem until now.
To find the source of fuel I started by removing the transfer pump from the injection pump,reattached the fuel lines and turned the fuel back on hoping to find a leaky shaft seal on the trans pump.Sure enough the shaft seal is leaking, but I suspected not enough to cause all the fuel that is getting into the crank case.
I then left all the fuel lines attached to the trans pump but didn't put it back on the injection pump.Then I removed the oil line from the bottom of the injection pump to see if fuel would drip out of the oil fitting.
Within a few minutes a slow drip of fuel did appear and confirmed both the trans pump and injection pump are leaking into the crank case.
The pump and injectors were overhauled about 20 years ago and have been run 200 hrs since.The tractor still runs perfect except for the leaks.
Nobody around me has the parts to fix my pump but I have seen some past posts here that indicate there may be hope for me.
I don't have a problem removing the pump and sending it out to someone who knows what they're doing.
I am fairly capable of replacing the transfer pump seal if I can get one but not so sure about the injection pump or where the leak is coming from.
Any info about parts,help or where to look for help would be appreciated.
Thanks

The transfer pump seal is American Bosch part # PK 7910. If that doesn't stop the fuel in oil, then next is the injection pump hydraulic head seals..

Mr. Super Powers,

I sent you an email.

Phil Heisey

Hello Mr. Heisey, thanks for your reply.I've gotten parts for my Cockshutts from you in the past and plan to give you a call again soon for more.
I looked in my email and couldn't find a message from you.My address may not be the same now as the one you have.
It's now tmj@myfairpoint.net

I will email again !!

Thanks,
Phil

Dieseltech will probably be along shortly...