PT1445 Deutz fuel filter spewing diesel onto hot engine block

[m5040]

Fuel isn't just leaking when the machine is running, it is actually spewing out from the top of the filter housing on the side facing the engine block. I don't have a way of making a photo of the back of the filter, but you can see where fuel has been on the side of the filter in the oval area.

I suspect either the seal has failed or something isn't right with the housing. Not having another filter on hand, I parked the machine until I sort this out.

View attachment 2095192

The filter is under pressure from the supply pump (it is easier to filter a liquid under pressure than trying to move it through filter media using a vacuum), that is why it "spews" when it finds an opening.
You have nothing to loose by trying to tighten the existing filter, if you don't, my bet is when you go to replace it with your $50 new filter you will find it hand tight.

 

[2manyrocks]

m5040 was correct. The fuel filter was hand tight, but loose when I put a strap wrench on it. Seems to not be leaking now, but this motivated me to drill a couple of holes to mount a fire extinguisher. I think it's out of the way enough that it will work for me.