squaredeal91
Full Access Member
- Joined
- Mar 10, 2023
- Posts
- 2,593
- Reaction score
- 4,718
- Location
- Cave junction Oregon
- First Name
- Greg bush
- Truck Year
- 1991 SB
- Truck Model
- K30
- Engine Size
- 5.9 Cummins 12 valve
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It doesn't. I installed it to keep the factory 3 port mechanical fuel pump from pushing too much fuel into the carb. I have an Edelbrock 1406 which can allow too much gas in if not regulated. When I bought my square, the engine compartment reeked of gas and oil. The top of the engine was wet.I see the fuel pressure regulator there. But how does that affect the PCV valve/vent?
Hang on there. If I had money for that I'd have my beast on the road!Omg @ that fuel filter.
Hey O.P. - we'll send a bill.
Here's a better picture of what I did. Sorry for the confusion.
I just did away with the vent and plumbed this in recently.
If you move the fuel filter to the bottom end of the steel line,right at the fuel pump,you can run a steel line to 1/4 inch of the carbureator and 1 inch of rubber as a connector. Now a leak at the fuel filter is on the ground instead of on top of the engine.Plus less rubber hose and clamps as failure points on top of the engine.Hate to be a party pooper but while you have solved one problem you've created another. Over time oil fumes from the engine are going to come out of your new breather cap.Oil will collect in the new breather cap and drip on your rocker arm cover and down to the exhaust manifold. Giving that nice clean engine bay a layer of engine oil.
The diagram has that rocker cover being vented to the air breather to recirculate the oil fumes.
When I got my square it had an air breather in the rocker cover. A pretty reddish Moroso one. Over time it started dripping oil. My engine bay was getting oily and smelling like oil more and more. I added the air breather vent hose, fuel pressure regulator and fuel canister and now the engine bay smells and looks a lot less like gassy and oily.
Before
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After
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I'll get some for the shelf. I've used similar ones in the past with good results for different applications.Hey u know what I like to use?
ESPECIALLY with most fluid seals? Transmission pan gaskets, thermostat housings, intakes, oil pans, differential covers, you name it.
A loooong time ago I fell in love with Permatex brush on gasket sealant. Been using it for AGES and never once did it leak when I was finished. If I was in your position you couldn't keep me from it.
I very liberally apply this stuff on both sides.
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Hope this helps!