But GM should have put a lift pump on these trucks from the start. It is simply amazing the difference a pump makes on utilizing the stock fuel filter. Check out the pics of this filter with 8K on it.


http://www.dieselplace.com/forum/uploads/DSC02653_Medium.JPG


http://www.dieselplace.com/forum/uploads/DSC02654_Medium.JPG


Anyway, I thought it was interesting and it was nice to duplicate the results others have had.


Got a few other things done too like oil and filter change, fabbed up a custom rear driveshaft loop for the back section of the two-piece DS, and an exhaust turn-up tip for the trip to Muncie.


Oh, and I did a shakedown run on the funny gas system. http://www.dieselplace.com/forum/smileys/Wink.gif

Gloves! Trying to keep your manicure nice for the trip to Muncie? http://www.dieselplace.com/forum/smileys/HiHi.gif

As much as I would love to belive it the lil' lady does NOT think diesel fuel is a scent that sparks her fire.


Oh well, guess you can't have everything. http://www.dieselplace.com/forum/smileys/Cry.gif

As much as I would love to believe it the lil' lady does NOT think diesel fuel is a scent that sparks her fire.


Oh well, guess you can't have everything. http://www.dieselplace.com/forum/smileys/Cry.gif





My wife sits out in the garage some time just to smell my truck exhaust. It`s nice to come in the home and turn her on because I have just changed the fuel filterhttp://www.dieselplace.com/forum/smileys/Big Smile.gif (I used to get upset, but now I don`t care as long as she gets turned onhttp://www.dieselplace.com/forum/smileys/Cool.gif)


To get back on track here! Tell me why you think the lift pump is a must. And for the filter you posted pix of. I can not see where it looks great for only 8,000 miles. Please enlighten me.

Mike,


I think a lift pump is a must because the original Bosch specification called for one. Keeping the system under pressure guaranteeing supply versus a suction system that fails under high demand makes much more sense.


The filter does look BAD for 8K miles which is good! All that crap is caught in the filter instead of trashing my injectors. The pressure keeps the stock filter full at all times using all of the media. Look at the difference:


http://www.dieselplace.com/forum/uploads/6FZ_DSC02653_Medium.JPG


http://www.dieselplace.com/forum/uploads/78E_filter.jpg


The second filter has 10K with no lift pump on it. I think the lift pump filter did a much better job. I will stick with the pump and changing the stock filter early and often. http://www.dieselplace.com/forum/smileys/Cool.gifEdited by: BMDMAX

And another:


http://www.dieselplace.com/forum/uploads/444_filter2.jpg


Need more enlightening? http://www.dieselplace.com/forum/smileys/Wink.gif

And here's another - mine. I just
changed them (OEM & CAT) yesterday (05/30/04) with
~11,170 miles on it. Only about the last
5K miles was with the CAT filter (Nicktane kit).

Heres the Link (http://207.53.239.181/~terry/truck/Fuel-Filters/)
to my filter change page.

I'm not sure I want(or am ready) to add a lift pump
just yet though....

T.

BMDMAX;


Thanks for your explanation! Of all the threads that have talked about lift pumps, and with me asking why many times. You are the first one to explain it in a way that makes sense. Thanks.


Now for types of lift pumps. I have ruled out the F.A.S.S. due to reading about poor fit an finish. and it seems as though they may not be around in the event I would need replacement parts.


How about Preporator? This one seems like a very good setup with 6 micron filter http://www.dieselplace.com/forum/uploads/CCE_AirDogThumb.jpg and it looks very nice. And many here think it is best to buy from vendors that support this site. The only draw back that I see, is it is extremely pricey

As much as I would love to belive it the lil' lady does NOT think diesel fuel is a scent that sparks her fire.


Oh well, guess you can't have everything. http://www.dieselplace.com/forum/smileys/Cry.gif





Yeah, I tried a dab behind each ear as cologne, didn't work for me either.

BMDMAX;


Thanks for your explanation! Of all the threads that have talked about lift pumps, and with me asking why many times. You are the first one to explain it in a way that makes sense. Thanks.


Now for types of lift pumps. I have ruled out the F.A.S.S. due to reading about poor fit an finish. and it seems as though they may not be around in the event I would need replacement parts.


How about Preporator? This one seems like a very good setup with 6 micron filter http://www.dieselplace.com/forum/uploads/CCE_AirDogThumb.jpg and it looks very nice. And many here think it is best to buy from vendors that support this site. The only draw back that I see, is it is extremely pricey





Mike,


I don't know if anyone has tried the preporator on our trucks, at least I have not read any posts that I can recall. Several have the FASS with good results.


They both seem to be heavy duty units and both of them are big. There seems to be just as much debate on good pump options as there are filter options! The hard part is finding a good flowing pump that will handle diesel fuel.


I hope that in time more options will be available for our use.

Thanks!


The Preporator Airdog is much smaller then the old models and it was designed for the pickup truck not the semi truck.


These are the specs


Air Dog specs -
For pick-ups and small diesel engines
Weight: 10 lbs.
Size: 7 in x 2 in x 10 in (filters included)


Flow Rates
<UL>
<LI>AirDog FP80 (Standard) - 80 /90 gph*
<LI>AirDog FP80HP (High Performance) - 120/130 gph* </LI>[/list]


AirDog standard equipment includes:
<UL>
<LI>AirDog Fuel Preporator with water, fuel filter (6 micron StrataPore(tm) Filter) and air/fuel separation system.
<LI>Relay controlled wiring harness with low fuel pressure switch and indicator light to signal filter changes.
<LI>Sturdy heavy duty steel mounting bracket assembly and bolts that mount directly to frame (No frame drilling required).
<LI>All fuel lines and fuel line fittings and connectors to properly install the AirDog Fuel Preporator.
<LI>2 year limited warranty. Contact Ekstam Worldwide for details. </LI>[/list]


MSRP
AirDog FP80 (Standard) MSRP: $749 - Introductory Price $679
FOB Jefferson City, Missouri or your local AirDog dealer


I do not think these specs can be correct. If the diameter is only 2" and the over all size is 7" X 2" X 10" that unit isn't going to filter for long before you would have to change filters. I sent for more information and received an e-mail with the same information as what is posted on their sitehttp://www.dieselplace.com/forum/smileys/Cry.gif

The 7" left to right and the 10" tall including filters is correct. However, the 2" should be 3.2". The fuel filter is 5.5" tall and 3" in diameter. The media is the same StrataPore TM by Fleetguard as used in the OE filter only with 1 1/2 times the Sq. In. Because the AirDog operates at a much higher pressure and flow rate, the filter life should be very long. The system does include a pressure switch operating off of the output pressure to activate the included indicator light that installs in the dash.


Thanks for your interest,


Charlie