Still leaking from under the KSB solenoid.

[GTX_Joel]

Well, I finally got around to putting the KSB solenoid back on. It was leaking from where it joins the pump body, right at the bottom. I filed the mating surface on the KSB flat, since it wasen't perfect, put in a new green O-ring from Bosch, bolted it together with new bolts, started it up, and it still leaks. :{

I can see it good with a light and a mirror, and am 98% sure it is coming from the joint between the KSB and the pump, and not from the cover on the block side of the pump.



Any ideas? Could there be a crack? What to do next? Will I have to pull the pump?



I have reveiwed the directions for pulling the pump and I don't see a problem except for the part about "barring" the motor over to line up the TDC pin. Looks like thats a special tool that I don't have - to insert into the bellhousing and turn the motor. Any other way to do it?



BTW, I advanced the timing 1/8" today while I was fooling with it. After I loostend the nuts, I used a porta-power hydraulic ram between the battery tray and the top braket on the pump to push and hold it in the right position while I tightend the nuts. Worked pretty slick!



Joel

 

[boatpuller]

To turn your engine to TDC without a barring tool you can put a socket on the alternator pulley and turn the engine backwards, the belt will slip if you try to turn it forwards.



If you had a manual trans you could put it in gear and push it.



Sorry don't have any ideas on your leak.



Happy Rammin,

Caleb

 

[BushWakr - RIP]

Joel,



The casting of the KSB 'can' crack. I't doesn't seem to happen alot, but it is after all, only cast aluminum.

The timing piston and a couple fuel passages are in the KSB, one is an "excess pressure" relief passage. It may be that you have a crack that opens just a tad when pressurized during operation.



Hmmmmm... . any thoughts on how to diagnose this possibility???



Guys... ... ... ...



pb...

 

[BCaldwell]

how about taping a dry piece of paper in behindor on the side of the KSB fire it up and see if it gets wet.



Bill

 

[GTX_Joel]

Thanks for the replys.

It's a pretty big leak about one big drip every second when it is idling. Not just a little seepage where I would have to wonder where it is from.

Maybe I should take the KSB off again and bring it to a shop that has zyglo? or some kind of magnaflux type sysem for aluminum to check it for a crack. No crack was visible to the naked eye, but that was with no pressure on it.