fuel heater help

• Jan 21, 2011

• #1

tractorman86

Registered User

Joined

May 1, 2006

Posts

2,393

Reaction score

0

Location

Buckeye, AZ

Ok so normally I would do a search and answer my own question but my phone is the only way I can get on here right now and my phone wont let me type in the search box... so when the fuel heater on top of the fuel filter starts leaking how do you seal it back up or is it better to just replace it, how many olhms resistance should it have? I am not sure if it is even working.

 

• Jan 21, 2011

• #2

GenLightening

Yeah, it's a CHEVY!

Joined

Oct 24, 2006

Posts

1,917

Reaction score

1

Location

Pukalani, Hawaii

There's a couple of o-rings in there that need to be replaced. Take it apart and then take the o-rings to get the proper sizes. I had a kit I use and they were in it, so they aren't oddball sizes.

 

• Jan 21, 2011

• #3

tractorman86

Registered User

Joined

May 1, 2006

Posts

2,393

Reaction score

0

Location

Buckeye, AZ

How does it come out? I'm not by my truck

 

• Jan 21, 2011

• #4

GenLightening

Yeah, it's a CHEVY!

Joined

Oct 24, 2006

Posts

1,917

Reaction score

1

Location

Pukalani, Hawaii

I think there's a write up with pics here somewhere. It's not too bad though, pretty straight forward once you start taking it apart.

 

• Jan 21, 2011

• #5

O

Optikalillushun

Registered User

Joined

Aug 25, 2007

Posts

2,840

Reaction score

1

Location

Coal Region, Pa

one o-ring, part number is in the parts bin thread (i think). cost me like $3 from international, i ordered a 6 pack...spares are good :-D

once the filter head is off the truck, remove the brass fitting the filter screws onto. Then carefully and lightly tap the black plug on the top of the filter head. that should release and u take the plate out. the o-ring is at the bottom of the black plug. i have pictures, lemme dig em out.

 

• Jan 21, 2011

• #6

O

Optikalillushun

Registered User

Joined

Aug 25, 2007

Posts

2,840

Reaction score

1

Location

Coal Region, Pa

You must be registered for see images attach

You must be registered for see images attach

You must be registered for see images attach

You must be registered for see images attach

i got like 5 of these filter heads from the junkyard to play with...i thought id end up destroying a few before i got it apart right but it was really a piece of cake. oh and the plug gets VERY brittle when exposed to diesel fuel...so i took a few "extra" plugs for spares :-D

 

• Jan 22, 2011

• #7

tractorman86

Registered User

Joined

May 1, 2006

Posts

2,393

Reaction score

0

Location

Buckeye, AZ

Thanks guys, the pics help too

 

• Jan 22, 2011

• #8

GenLightening

Yeah, it's a CHEVY!

Joined

Oct 24, 2006

Posts

1,917

Reaction score

1

Location

Pukalani, Hawaii

Actually, there's another o-ring inside the black part. Carefully twist the electrical tab in the center of the plug to release those two pieces and you'll find it. If fuel is coming out of the center then that's the bad one. Probably good to change them both.

 

• Jan 22, 2011

• #9

O

Optikalillushun

Registered User

Joined

Aug 25, 2007

Posts

2,840

Reaction score

1

Location

Coal Region, Pa

Thanx Gen...

 

• Jan 22, 2011

• #10

GenLightening

Yeah, it's a CHEVY!

Joined

Oct 24, 2006

Posts

1,917

Reaction score

1

Location

Pukalani, Hawaii

If you have a spare one, take it all the way apart and take a couple more shots to show the rest of the pieces and the other oring.

 

• Jan 22, 2011

• #11

CurtIDI94turbo

Curtis

Joined

Jan 8, 2011

Posts

83

Reaction score

0

Location

Disneyland, CA

Actually, there's another o-ring inside the black part

Gen,
Dangit, I just replaced mine about 4 weeks ago is there somthing I missed? The only O-ring I replaced was the one that Opti. is pointing at. 4th pic down

 

• Jan 22, 2011

• #12

GenLightening

Yeah, it's a CHEVY!

Joined

Oct 24, 2006

Posts

1,917

Reaction score

1

Location

Pukalani, Hawaii

Yes, if you have it apart like in the pics, look at the electrical post. There's a small tab that holds it in place and if you bend it inwards and carefully push it down into the black piece, the heater will release from the black part and there's your second o-ring. I should have taken pics when I took mine apart.....

 

• Jan 22, 2011

• #13

G

Greenie

Supporting Member

Supporting Member

Joined

Jan 17, 2004

Posts

305

Reaction score

228

Other than getting it to stop leaking, the fuel heater is too small and poorly placed to do any good heating the fuel. The earlier one on the 6.9 fuel line was better at helping with gelled fuel.

 

• Jan 22, 2011

• #14

O

Optikalillushun

Registered User

Joined

Aug 25, 2007

Posts

2,840

Reaction score

1

Location

Coal Region, Pa

i destroyed the one in the pics in seach of said second o-ring, to no avail. i took the black part off the metal ring and broke it apart and i broke the male plug end off inside the top part...where is that lil ******? haha

 

• Jan 22, 2011

• #15

icanfixall

Official GMM hand model

Joined

Apr 10, 2005

Posts

25,858

Reaction score

673

Location

West coast

The international part number for the o-ring pointed to in the pics is 1811053C1 and costs about $2.50 each... Buy a spare... They wont break the bank... I don't have the part number for the small internal o-ring...