Installing FP gauge

[Po' Riggity]

Ok, Im going to be installing gauges soon. My trucks lift pump just got replaced with the in tank pump update, under warranty because my old motor mounted lift pump went out. This means I don't have the banjo bolt on the old LP to use. Does this mean that I need to do something like buy the geno's billet fuel filter cap with the fitting in the top of it, as well as a couple peices of fuel line?

Scott

 

[RankRam]

You can use the banjo bolt on the cp3.

 

[Po' Riggity]

Being a newbie to diesels, Im assuming by CP3, you're reffering to the lift pump that might still be on the back of the fuel filter housing?

Scott

 

[RankRam]

Being a newbie to diesels, Im assuming by CP3, you're reffering to the lift pump that might still be on the back of the fuel filter housing?

Scott

Nope, just follow the line from the bottom of the fuel filter towards the front of the engine. This will lead you to the injection pump aka the cp3. Here is a pic for ya.



#ad




Hope this helps ya.

 

[Po' Riggity]

that helps big time. Thats what I'll do then. . It'll save me lots of $$ by doing it this way. . The bajo bolt fits in there correctly, I assume?

Scott

 

[RockinJ]

. . . or if you want to run a shorter fuel line to your FP isolator, use the banjo bolt at the bottom of the fuel filter canister (its technically the "other" end of the line that connects to the CP3 that RankRam mentioned). Using the banjo connection at either end of this line works much better than having the inconvenience of disconnectiong your FP line from the billet fuel filter cover every time you need to service the filter.

 

[nickleinonen]

Using the banjo connection at either end of this line works much better than having the inconvenience of disconnectiong your FP line from the billet fuel filter cover every time you need to service the filter.

jic fittings are easy to disconnect, or even easier are hydraulic quick connects... if you go the route of using a billit fuel filter cap

 

[RankRam]

Just something to keep in mind.



Billet fuel filter cover = Prefilter press. readings



Banjo's = Postfilter readings

 

[05mxdiesel]

so overall is it better to show after filter, or before for better accuracy for the lift pump. I plan on adding a fass soon anyways since I already have a tst.

 

[RankRam]

so overall is it better to show after filter, or before for better accuracy for the lift pump. I plan on adding a fass soon anyways since I already have a tst.

I would only do mine after the filter, this way if you start getting low pressure readings then you will know that either your filter is plugging up or the lift pump is not working like it should. If you get low readings then change your filter before you worry about the lift pump.



The thing to remember is that you can get a bad load of fuel and plug a filter the day you changed your filter, so if you are going to go through the trouble of installing a fuel pressure guage, you may as well be able to monitor the health of the filter as well as the lift pump.



Now the ultimate setup would be running pre and post filter readings. Oo.

 

[JCrockett]

I ran mine from the cp3, check readers gallery for install pics. I have another question. Now that I have a FP gauge i get about a 7-8 psi reading at idle, then with the HOT Juice on even just 1, when I put the hammer down it will drop all the way down to 1psi. Is this normal? Fuel filter is stock but only has 10500 miles on it, should I replace it? Or is this what happens when they say you "run out of fuel" and does the FASS help this situation.

Don't mean to hijack, just need a little help since the FP install.

Thanks

 

[SHobbs]

Say Nickleinonen,



You mentioned quick connect fittings to attach to the top of the billet cap from Genos. What would be needed to do this? I like the look of the billet cap and was thinking of a way to connect a line to the top of it and was wondering if this was feasible.

 

[rbattelle]

Whatever you do, please be CLEAN about working with the fittings on the clean side of the filter. Very clean.



-Ryan

 

[Po' Riggity]

Well, looks like I'll have two options for mounting, and I'll decide at the bomb party which is best, but either way, it'll be post filter. . I didnt really wanna spend 60 bucks on the fuel filter cap anyhow

Scott

 

[SHobbs]

Po Riggity,



I had the OEM plastic cap break when I was in New Mexico on a ski trip. Only way to get one was UPS, added an extra day to my trip. The money spent on the billet will be well served. Wasn't too bad though got an extra day of skiing, lol.

 

[nickleinonen]

You mentioned quick connect fittings to attach to the top of the billet cap from Genos

something like this attached to the filter cap would work

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it isn't the most showy looking coupling but it works pretty well. at work we use the 1/4" npt varity all over the place and they usually don't leak [the ones we have for our oil sample valves sometimes leak, but they get abused [dirty & damaged sample valves used or poppit on engine side is damaged. . ] we have these on our waterpump discharge pipes on most units and i can't remember seeing one of them leaking. you'd need to either put on a rigid pipe nipple between the filter cap and this fitting, or a short whip hose that would allow you to hide the bulk of this quick connect away. this type is a dry seal fitting, so you can connect/disconnect it with fluid & pressure behind it and not spill [50lbs is usually the max pressure idling when we are taking oil samples, but i have taken samples off an ice cold engine with oil pressure being +120 and still no leaks]