Where's the leak?

[hankg]

I've got a '93 Dodge W250 (580K). Has a 5.9L intercooled turbo diesel w/ a Bosch VE VP14 Injection pump. Got a major low pressure leak. Removed linkage, manually pumped low pressure side, no leakage from the feed or return lines noted; however from mirror underside pump there is leakage/drippage noted. Where's the leak? Apprecfiate y'alls help. Hank

 

[dodgenstein]

O-ring on back side of timing piston. Pump removal required.

 

[hankg]

Thanks, don't know where O-ring on back side of timing piston is located - got a ref for a Bosch VE VP14 injection pump schematic loc of the noted 0-ring? Thanks Hankg

 

[dodgenstein]

It is behind a 2 bolt cover on the engine side of the pump.

 

[hankg]

Thanks. Would really like a BOSCH schematic of the VE VP-14 Injection pump showing the cover, you mention. Think the best proceedure is to barr the motor to TDC #1 Cylinder; timing pin enguaged - remove the pump. Bring pump for rebuild/reseal to someone who knows their kaka. Anyone know a reliable pump rebuilder in CENTX? Can Cummins provide a BOSCH schematic, given the motor CPL?

 

[dodgenstein]

Thanks. Would really like a BOSCH schematic of the VE VP-14 Injection pump showing the cover, you mention. Think the best proceedure is to barr the motor to TDC #1 Cylinder; timing pin enguaged - remove the pump. Bring pump for rebuild/reseal to someone who knows their kaka. Anyone know a reliable pump rebuilder in CENTX? Can Cummins provide a BOSCH schematic, given the motor CPL?

Try this http://www.dieseltruckresource.com/...3/bosch-ve-distributor-injection-pump-231863/.
part #36 6th page. Behind cover #39.

 

[DVolk]

There is a down load on line as I got a book I printed for a be pump except its in German all the writing

 

[hankg]

Try this http://www.dieseltruckresource.com/...3/bosch-ve-distributor-injection-pump-231863/.
part #36 6th page. Behind cover #39.

dodgenstein - You're spot-on thanks.