Frantz as an inline gasoline filter

[mjo]

I purchased a steel Frantz filter a while back that didn't come with a clamp or o-rings. I was wondering if anyone has installed a Frantz as an inline gasoline filter and wondering if it can handle 60psi. Do I need special o-rings to handle all the pressure? My car's a '95 Saturn with MPFI. Thanks.

 

[johnd]

Since early morning oil pressure could easily exceed 60 lb, I don't see any reason why the Frantz couldn't handle 60 with fuel. Any O-ring which is safe with oil should be safe with gas. If it were me and since it is gasoline, I'd use a new o-ring each time, just to be safe. The o-rings and clamp are available from Frantz.

 

[sifan]

I had bought a Frantz fuel bypass filter few years ago, and have not installed it yet because I am not sure if the factory fuel pump will be up to the job to push the fuel thru the TP. Do you think your fuel pump won't be damaged with the in-line bypass filter?

 

[sifan]

BTW, what kind of TP do you plan to use?

 

[mjo]

quote:

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Originally posted by sifan:
I had bought a Frantz fuel bypass filter few years ago, and have not installed it yet because I am not sure if the factory fuel pump will be up to the job to push the fuel thru the TP. Do you think your fuel pump won't be damaged with the in-line bypass filter?

---

My car has a fuel system with a return line. I guess I need to answer your question for myself before proceeding. It's too bad the fuel pressure regulator isn't in the tank instead of the fuel rail. Any suggestions?

Maybe I could install a second fuel pressure regulator just before the Frantz and have it set just above the pressure at the rail. Then have the second fuel pressure regulator attach to the return line. Say, if the OEM fuel regulator is set to 60, have the add-on regulator set at 62 psi.

The type of TP I am willing to use would depend on how much flow the pump needs.

 

[mjo]

Well everyone,

I emailed www.wefilterit.com and here's Deborah's reply:

quote:

---

Dear Mark:
The Frantz filter can handle that pressure, and the gaskets we
sell on
the website will work with all of the later models of the Frantz
Filters.
The unit on eBay is going to be used to filter your fuel? If so, you
should
be fine. If you have any other questions, please feel free to reply.
Also
just to let you know that buying on eBay is okay, but it is still a
buyer
beware situation. The bigger units are obsolete at this time and I
feel
sorry for those individuals that buy with out checking for support
first. I
hope to have the bigger unit available within the next year or so.

Deborah
208-467-3726

---

P.S. I wonder what she means by the bigger units being obsolete?

 

[mjo]

Would anyone know how to find the flow rate spec of a fuel pump? Do electronic fuel pumps have relief valves?

 

[mjo]

Sifan, FYI,

I found out on www.saturnfans.com that the flow spec of the fuel pump for my car is 1.6 quarts/min. The Frantz filter should work fine on my car. If your car has a returnless fuel system (without a return line leading back to the gas tank) then all you have to do to know the flow spec is to divide your max speed by your max fuel consumption.

I'll probably use some TP slightly less wound than the Scott 1000 in the fuel filter.

 

[mjo]

I came up with a design idea for everyone wanting to use a Frantz gasoline filter but afraid that it will plug and damage the fuel pump. It's so simple I can't believe I didn't come up with it earlier. Just install a check valve with a crack pressure of a few PSI in parallel with the filter in the direction of flow. The check valve will act like a permacool oil filter sandwich adapter. The check valve will provide the filter with a pressure differential = to the cracking pressure. When the TP inhibits flow, the check valve will open and let some or all of the gasoline flow past.

 

[Bio-T]

P.S. I wonder what she means by the bigger units being obsolete?

I think she is referring to the 2 and 3 stacker Frantz units. These were used on Industrial and OTR trucks. Some are still for sale on ebay at various times. The problem is parts availability.

I ran in to a gent at a Bio-diesel workshop this past week-end and he removed the complete fuel filter from the factory on an 84 VW Diesel and replaced it with a Frantz bypass. He stated it works fine.

 

[LarryL]

For years I ran Frantz filters on oil and gas for my VW busses. Sometimes I wonder why I stopped using them. I know why I stopped driving VW busses.