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Old 11-02-2020, 08:00 PM
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Diesel911 Diesel911 is offline
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Location: Long Beach,CA
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Quote:
Originally Posted by Shern View Post
I suspect I have a pinhole leak somewhere in the fuel hard lines. Intend to unbolt them and check under the rubber but if it's a true pinhole, I don't suspect I'll see anything.

Remember reading someone suggesting pumping air into the tank.
I imagine clamping off the vent, the intake line and connecting the return line to a pump would be sufficient. What's a safe PSI to reach?

Or is this a bad idea in general?


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You might not locate the exact pin hole but since diesel fuel dos not evaporate in the manner gasoline does it is going to be wet and smell of fuel near the leak.
Degreasing the lines and then checking could work. It is likely under one of the camps (this happened to me). Either the Rubber wears out and the tubing rubs a hole in itself or it rusts under the clamps.
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