To Fill or Not To Fill

[RHARVEY]

Here it is 2 days after my first fuel filter change and no runs,no drips,no errors..... One thing that I notices is that she runs better and seems to pull harder while going thru the gears without using more pedal. I did take some pictures of the 2 filters(old and new). . but I forgot the diskette at home.

I'll post the pictures as soon as I get the diskette. The old filter was dark but there was no fungus in the folds of the filter. I had it changed in Arkansas when I had the lift pump put on and the mech. showed me the filter and it has a lot of junk in the folds. He said I had gotten a bad tank of fuel some where. .

But the filter change was so easy... ...



Rick

 

[RHARVEY]

Here is the 2 filters... I think it was time to change...



Rick

 

[HoleshotHolset]

Okay, I'm still new and just changed my filter for the 1st time recently... . so bear with me.



My filter was not just the element only like I'm seeing in that pic... mine was a whole cannister... great big steel thing where the WIF light sensor screwed into... ... bought it from the stealer... . Mopar oil and fuel filter... . $29... . thought this was a good deal so I bought it and changed out both.



Just curious, as usual.

BTW, that filter in the picture kinda looks like a PSD/ISB/6. 5TD setup..... is this a 12V truck??



Matt

 

[RHARVEY]

Matt,



This is off of my 97 12v. If I remember correctly this filter element was about $12 at my local Fleetguard outlet. Mine looks like the old oil filter canister that was common on the cars in the early sixties.

I have decided after seeing the condition of the filter at 12,000 miles, I will change it at 8-10,000 from now on. Here is the picture of the canister where the element goes



Rick

 

[JohnE]

Matt (AKA No Cam Ram);



94-96 uses a complete fuel filter of the spin-on variety.

97-99 (both 12 &amp; 24 valve) uses a fuel filter <em>element</em> in the can shown in RHARVEY's 2 posts.

Not sure what the new millenium uses to strain the junk.



Repeating an earlier post: Cummins does NOT recomend pre-filling the fuel filter. You are by passing the filtering elements with un clean fuel. (Your naked eye is not a good judge either!) Filling the oil filter is fine if you don't drop the foil bottle top seal in the works.



-John

 

[RHARVEY]

After reading the instructions on the filter install, I did not pre-fill the canister. With all the informatin that I got, the majority and also my service manual didn't say to pre-fill the canister. All it said was to put it back together and open bleed valve and pump the prime pump to fill the canister.

It actually turned out to be a sweet chore and not as much a PITA as I first thought and afraid that it would be.



Rick

 

[illflem]

Rick, no more dreams of a Prime-Loc I assume?

 

[RHARVEY]

Bill,



Prime-Loc... whats that



Rick

 

[HoleshotHolset]

Thanks for the info... . I thought something was wrong with my setup!

All is well... .



Matt - new nickname "No Cam Ram"

 

[Cobra]

new fuel filter

BOWHUNTER,

As you can see in my signature I have a 24V and I guess there is a difference in changing the fuel filters. Mine does not have the primer pump and my manual says to prefill the canister with clean fuel. When mine was changed for the first time, a friend helped me (he did it). He is very very meticulous. He would not let me prefill the canister because of contaminated fuel. We simply used the ignition switch and the transfer pump primed the filter.



That brings me to the question. You said to never let the injector pump run without fuel (with air). Is that hard on the injector pump? The 24V also has a different injector pump than the 12V.



Maybe I should just stay off the 12V forum and not let myself get so confused. I just got on by accidient anyway.

 

[bowhunter]

Some opinions may vary, but the injector pump is lubricated by the diesel fuel. Running it or turning it over without fuel means that their isn't lubrication in the pump while its turning over. If this is done frequently the pump my suffer. And it could contibute to a pump going out.



Its like when you change your oil and you fill the filter with oil before you put it on. This keeps oil to the turbo when you restart. If you put an empty filter on and turn over the engine, the turbo will operate without lubrication for a brief period until the oil runs through the filter and circulates to the turbo. This causes unnecessary wear on the turbo.



This is a meticulous concept, but this is what a good diesel tech will tell you. I have a couple buddies that went to school for Chrysler for the cummins. This is what they tell me.



Kurt