DIESEL FUEL PICKUP PUMP

Downrigga

Admiral
Joined
Mar 25, 2016
Posts
6,526
Likes
7,970
Location
Harwichport MA
Boat Make
36' NB
One thing I believe is getting over looked is that todays fuels, by there very nature absorb water. Your fuel tank and circut, your vent, your fill port and all your fittings can be water tight
and well placed. Both gasoline and diesel fuel are still going to pull water from the atmosphere. This affinity for water will grow as the bio component becomes more prominent in the future. The important thing to know is that treating fuel to keep it stable and having a primary filter with a glass bottom are the best practices of all. That glass bowl is your window into knowing exactly what is happening inside your fuel tank. Check that bowl often for two things, color and water. On road fuel that is stable will have a nice gold color. Off road fuel that is stable will look like a fine red wine. Look for color change. Dark fuel is unstable and will lead to proplems. Secondly, drain off even the smallest amount of water from that bowl often. If you do that all these fuel problems that so many people have will disappear into thin air.
 

steveinak

Admiral
Joined
Sep 1, 2011
Posts
6,547
Likes
5,038
Location
Piker Central
Boat Make
31 BHM
I doubt that is pure lubrizol chemical. I have some real stuff if anyone is local. Not cut with anything that is then rebranded.
I'm going to come visit ya next fall, i want something to dose my fuel for my duramax truck. I have a 70 gal auxiliary tank in the bed and want to make sure that fuel stays good.
 

Kailua Kid

Commodore
Joined
Jan 14, 2019
Posts
891
Likes
817
Location
Bainbridge Island
Website
www.gibbonslawgroup.com
Boat Make
General Marine 26; Klamath 19; Sparkman & Stephens Yankee 38 sloop
One thing I believe is getting over looked is that todays fuels, by there very nature absorb water. Your fuel tank and circut, your vent, your fill port and all your fittings can be water tight
and well placed. Both gasoline and diesel fuel are still going to pull water from the atmosphere. This affinity for water will grow as the bio component becomes more prominent in the future. The important thing to know is that treating fuel to keep it stable and having a primary filter with a glass bottom are the best practices of all. That glass bowl is your window into knowing exactly what is happening inside your fuel tank. Check that bowl often for two things, color and water. On road fuel that is stable will have a nice gold color. Off road fuel that is stable will look like a fine red wine. Look for color change. Dark fuel is unstable and will lead to proplems. Secondly, drain off even the smallest amount of water from that bowl often. If you do that all these fuel problems that so many people have will disappear into thin air.
Relatedly, with the AJX tank treatment, once the globs or matts of biological matter are broken up and sort of dissolved and suspended into the fuel in the treated tank, after 48-72 hours, etc., from the AJX videos it looks like the fuel becomes opaque. Will that opaque-looking diesel pass through a 10 micron aquabloc Racor/Parker (primary) filter element and then the engine’s (secondary) fuel element and run through the HP pump and injectors without damaging anything? Archie is overseas until this weekend. My guess is that you know the answer to those questions. Any enlightenment? Your insights would be appreciated!
 

kapnd

1st Mate
Joined
Sep 22, 2012
Posts
238
Likes
126
Modern electronic diesel motors are very finicky about what the can safely ingest.
If I owned one, I’d invest heavily in multi stage and redundant filtering, with backup.
Older mechanical diesels are more forgiving, but a steady diet of crud will destroy it.
 

True Grit

1st Mate
Joined
Mar 10, 2023
Posts
135
Likes
156
Fix the water entry problem. Treat fuel using Biobor whenever you fuel up (use the recommended amount) and add a qt of transmission fluid to each tank every couple of fill ups.
 

Downrigga

Admiral
Joined
Mar 25, 2016
Posts
6,526
Likes
7,970
Location
Harwichport MA
Boat Make
36' NB
Fix the water entry problem. Treat fuel using Biobor whenever you fuel up (use the recommended amount) and add a qt of transmission fluid to each tank every couple of fill ups.
Just my opinion. Biobor does kill bacteria but it won't remove the dead stuff from the tank so I recommend not using biobor for that reason. There are better products available to deal with bacterial issues. There is also no need to use a bacterial agent unless you have an issue or your laying up for the winter. Adding transmission fluid to diesel fuel as a lubricant is unnecessary because the bio component found in diesel fuel even at 5% is an excellent lubricant. As a detergent, there are products available that will clean your injectors way better than ATF. Best practice is to add products that provide fuel stabilization.
 
Last edited:

Kailua Kid

Commodore
Joined
Jan 14, 2019
Posts
891
Likes
817
Location
Bainbridge Island
Website
www.gibbonslawgroup.com
Boat Make
General Marine 26; Klamath 19; Sparkman & Stephens Yankee 38 sloop
Just my opinion. Biobor does kill bacteria but it won't remove the dead stuff from the tank so I recommend not using biobor for that reason. There are better products available to deal with bacterial issues. There is also no need to use a bacterial agent unless you have an issue or your laying up for the winter. Adding transmission fluid to diesel fuel as a lubricant is unnecessary because the bio component found in diesel fuel even at 5% is an excellent lubricant. As a detergent, there are products available that will clean your injectors way better than ATF. Best practice is to add products that provide fuel stabilization.
Downrigga: Which products besides AJX break down the dead biological matter in diesel fuel? And if you know, do the other products remove that biological waste in more or less the same way as AJX describes in its promo videos? Very curious about this. Thank you in advance for any information you might have.
 
Top Bottom