Crank shaft oil seal?

Anaconda said:

I'm going to have to get the remaining diesel out of the timing case for testing the injection pump for leaks when it comes back.
Any reason I can't stick a hose pipe through where the injector pump attaches and wash it out?

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julianf said:

Water alone won't wash off diesel.

When I did my 300 recently, I had a pump up sprayer filled with that "no nonsense" degreaser. The front was off it, and I, kind of, avoided anything that would have a bearing or a seal. Not that carefully, but I didn't spray it around the back of the sprockets. I doubt it would have been an issue for anything other than the idler, which I was replacing anyway, but I was slightly cautious all the same.

Trouble is, anything you spray in there to get the diesel out, apart from water, which won't get the diesel out, will also get into the idler bearing.

Depends on if you can be bothered to do the idler again when you do the belt, I guess?

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lynall said:

Brake cleaner all day long, but what about the belt being covered in fuel?
Plus the water will make the bare parts of the cam pulleys rust.
Cannot see water getting into the idler and tensioner as they are sealed bearings.

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Anaconda said:

My plan is to change the belt, idler, tensioner but I don't want to take the lot off before I know the pump is ok when it comes back. I would be extremely irritated fitting a new timing kit to find another diesel leak.
How about squirting brake cleaner up the wading plug hole, will wash some diesel out?
I was going to fit the pump, drive 100 miles to make sure it's not leaking then fit the new timing kit.
Is there a better plan?
I should mention it's not a massive leak, more like a slow drip which runs down the inside of the casing. I say this as there didn't seem to be fuel on the pump gear/pulley when I took the
pump out. The gasket between pump and timing case was wet with diesel so the pump seal is most definitely leaking.

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