Alright guys I know how to find a vacuum leak in a gasser, pretty simple with a can of starting fluid. But since the diesel vacuum is run off a pump and not the engine that wont work... so my question is just how the heck are you supposed to find a leak on a diesel?

 

I have a hand pump, but you kind of have to test every line to find the component that is leaking.

 

where do you think it is leaking ie under hood or under dash?

 

That's what I was afraid of
I don't have my hand pump anymore, guess I will have to pick up a new one if that's how I have to test it.

 

Sometimes you can pinch off hoses and hear a change in sound, but it's a bit of a crapshoot.

 

If the vacuum will hold for a while with engine off then light up a big fat cigar and blow smoke around and watch for it being sucked in.

 

Now that's a new one Lazy K.... don't got any cigars on hand tho

 

Vacuum gauge straight to the vacuum pump, take a reading engine running and after 1 minute.

Now plug into the vacuum tree, block off all the other hose ports and take a reading, again running and 1 minute not running.

Then attach each line one at a time with a vacuum reading on each.

When you plug in the line with a leak, you will either see lower running reading or a falling non running reading.

Then you know where to concentrate you search for the leak.

 

I just got back from town... picked me up a new mityvac since I have no idea were mine ran off to. I think I loaned to a neighbor a couple of moves ago lol

I will go out in just a bit walk through those steps and post results.