Fuel injector “0” ring question

[ponytug]

Generally, if you aren't seeing weeping diesel somewhere as your engine loses prime overnight, or while running, it is either weeping through/by the injection pump above, or by your injectors. You might want to run a can of injector cleaner (e.g. SeaFoam, etc.) to see if you can clean out a sticking/stuck check valve somewhere.

If it were me, I would try the SeaFoam, as diesel gunk is more likely in an engine that sat for three years. I would hate to see you spending big bucks on new injector pump(s).

I am not familiar with the o-ring above, but by price and looks, I am guessing it would go on the base of that injector pump to keep engine oil from leaking out. (At the red arrow below)


Just a WAG on my part...

All the best,

Peter

 

[thepumpguysc]

First off, that IS the injection pump.!!
NOT an injector..
Second, there’s an oring on the “delivery valve holder”..
AND. a copper delivery valve gasket..
They get torqued to 30 ftlbs.!!