[Sleepper]

Did a search but did not learn much.
I could smell raw fuel for about a week but could not fined a leak. My oil light came on so i shut it down, check the oil and it was about 2 gallons over full. I changed the oil and filter on the side of the road, and pulled the lift pump off but it doesn't look like it was leaking. I put on an old lift pump anyways. I've put on less then 200 miles and there's almost a gallon in the oil again.
Could the ip leak this much into the motor?
92 all stock, ip rebuilt 85k km ago.
runs good

Thanks

 

[hokie]

Well,

Did you install another old lift pump ?

Or did you install the old lift pump that came off the engine ?

It sounds like your Lift Pump is Bad,

Instead of leaking out the weep hole,(externally). It's going into the crankcase.

 

[W350_1992]

Sounds like the IP if your pretty sure the LP isn't the culprit. It can dump a fair amount of fuel into the timing case.

 

[Sleepper]

I installed another old lp that was fine when it was removed.

Thanks

 

[RCCUMMINS89]

Injection pump front seal went.


Assuming you have no other issues, like massive blow by or smoking like crazy.

 

[Jordan A]

My vote is the IP as well

 

[Mikey-KE7LBB]

IP seal is toast. I had the same thing happen to my '92 a few years ago. I ended up changing out the pump in a NAPA parking lot. All seemed ok, but I ended up losing the turbo within a matter of days. Seems that diesel fuel isn't worth a hoot for lubing the turbo.

 

[Jordan A]

Ya the main bearings as well oh ya boys and don't forget that we only have one cam bearing so if you run it to long your gonna need a short block...

 

[RCCUMMINS89]

USUALLY as long as oil pressure isn't lost , one is good.

 

[Sleepper]

Is it difficult to change just the front seal?

 

[RCCUMMINS89]

Need to pull the pump.

 

[Bodybybeer2]

My buddy has same prob he was told clogged injectors

 

[RCCUMMINS89]

Leaky injectors won't cause an issue with this, unless it is a common rail injection system. Or a completely fubared injector (completely stuck open).... which cause a tremendous amount of white smoke at idle.

 

[Sleepper]

Little problem, key fell off when I was trying to install the pump, now what ? Can I fish it out or is it more involved than that?

 

[W350_1992]

You'll most likely need to pull the timing cover unless you can see the key with a flash light and can pull it out with a magnet. Tab the KDP and loctite the case bolts while its opened up.

Do NOT leave the key down in the timing case.

 

[Sleepper]

What's a KDP?

 

[Sleepper]

I should be able to find it if I pull the vacuum pump or is that not even close?

 

[W350_1992]

Killer Dowel Pin, its an alignment pin for the timing case to block that has been known to fall out into the timing gears :shock:

 

[country_hick]

http://www.cumminsforum.com/forum/94-98-engine/223095-what-kdp.html

 

[Sleepper]

I pulled the vacuum pump and the key was sitting in the cam gear teeth.