12 valve fuel heater removal

offroadin 88xj

Well-Known Member
Joined
Mar 6, 2010
Location
winston-salem
Anybody got any pics of how they took there fuel heaters off how's it start in the winter time my buddy keeps getting air leaks and we're trying to get rid of stuff that he don't need or can cause leaks later on
 
PO removed the fuel heater from my truck. I think it's just sandwiched between the housing on the block and the filter screen cover below. Starts fine in winter. I try and plug it in if its forecast to be below 30 degrees, but not out of fear for a no-start, really i just want the cabin heat to come sooner.
 
We have quite a few deleted trucks we service and see no issue. Running a good treatment is a sure fire way to confirm you won't have issues. Removing it is very simple. Take the strainer over off with a socket and long extension, then use an Allen bit to remove the fuel heater adapter (easy to figure out when you get it apart) - the strainer bowl will thread back in place of the heater and it's adapter. You'll need a strainer kit, you'll get a new strainer and the seals
 
Can we remove it all and just run a hose from fuel line straight to lift pump with an in line filter I've heard of people doing it and just cutting the fuel heater off and using the spacer from it anybody got some pics of how they did it
 
Seems like a lot of work for no reason! The strainer is sized for the truck and offers more surface area to prevent fuel restriction, cheap and easy to service. That I know I've never had one give issue. Just a hose to the pump inlet would work to though.
 
1 - factory fuel system will reliably handle 500+ rwhp, in my opinion more reliable than any non-factory electric pump.
2 - If they are using aftermarket fuel pumps say from advance or Autozone I've seen a ton of issues with bad out of the box or multiple replacements required in a short period of time. To date I've only had 2 bad cummins pumps out of the box and no additional failures down the road. Unless there is excessive restriction or contamination I wouldn't think there's much there that can cause a pump failure.
3 - air dog is not reliable on my opinion. Lots that I've seen have failed. FASS is more reliable but as noted above unless they are making significantly more power than a factory truck the pump is fine.
 
offroadin 88xj said:
Can we remove it all and just run a hose from fuel line straight to lift pump with an in line filter I've heard of people doing it and just cutting the fuel heater off and using the spacer from it anybody got some pics of how they did it
Click to expand...

This will work, even without a strainer. My truck makes over 500 with this setup, albeit I have a 1/2" fuel line from the fuel tank all the way to the LP inlet fitting.
 
Back
Top