Hey everyone! Long time, no talk.


Well, as some of you may know, I have a fuel leak... Well, it has gotten to the point it was leaking more than I was using, and I was going broke because of it.


So, today I took off the rubber filler tube (which was pretty dry rotted) and tossed that.


After that. I dropped the fuel tank... Even though it was dirty, after I cleaned it all off, used a scraper and a metal brush, I cleaned it all off and I could not find any holes.


Once that was done, I took my fuel line out (My fuel line was a blue, bendable nylon one) and it had a lot of cuts and what not on it, so I am thinking it was leaking at the fuel line.


After that, I took out the fuel pump, which I believe is leaking externally (or internally)


Then I took the metal fuel line from my fuel pump to my carb (which was already pretty bent up) out...


So, then I went onto LMC Truck and ordered the rubber filler tube, a stainless steel pre-bent fuel line from the tank to the fuel pump, a stainless steel pre-bent fuel line from the pump to the carb. I also ordered an Airtex Mechanical Fuel Pump from Advance Auto Parts as well as an in-line fuel filter that connects to the carb. Sadly, the fuel line from the tank to the pump is on backorder...



So far, it has cost me about $180. But i'm not done!



Once I replace all that, i'm going to change the oil and oil filter (in case fuel WAS leaking into my crankcase) which will cost me another $20.


So, for about $200, I will hopefully fix the fuel leak.


After this is fixed, i'm going to do the DSII Conversion... (But one thing at a time... that's what my wallet says, at least)


I am hoping that this fixes my fuel leak problem... If this doesn't fix it, my next repair will be replacing the fuel tank... which looks good... so... hopefully it's all fixed.


Anyways, just letting you guys know what's up! If you have any suggestions, let me know them!

 

WE - I assume you are replacing all the rubber fuel hoses as well. (You probably said that but I didn't pick it up.) If not, that is a must. Mine were so bad that they oozed gas but had no holes.

And, make absolutely certain your hoses are fully on the fittings and the clamps are properly positioned and tight. I had a connection just ahead of the pump that looked good at first blush but was on crooked and allowed air to be sucked in - which caused fuel starvation.

 

You can fill the tank with compressed air and then cover it with wet, soapy water to find
leaks. Even a bicycle pump will work for this.

 

or a shop vac

 

The shotgun approach sometimes works, sometimes it doesn't. So don't be too disappointed if it still leaks.

 

Great idea! I'll definitely do this, because I believe it is the fuel tank as well..

All of the rubber fuel hoses? Well, i'm replacing all of the fuel lines with stainless steel, pre-bent lines. However, the one rubber fill tube... I am replacing that one!

 

Well, I assumed - and you know what happens when you assume - that yours is like mine. But, as yours is an '85 and mine is an '82 that probably isn't safe since yours might be EFI and mine is carbed. However, on mine there are "rubber" hoses from each tank to the steel line on the frame, then more hose from the steel lines to the tank selector valve and from the valve on to the front steel line, then another hose from the end of the front line to the fuel pump.

All of those were bad on my truck. ALL of them. And, I drove my father's '81 a year ago and it left gasoline puddles everywhere it went as its hoses were bad as well. So, make sure you check any hoses you have.

 

Gary, bud.

I've got a carbed engine. I'm replacing any and all hoses that gas flows through with Stainless Steel!

However... I do hope that the steel pipe goes right to my tank and not a rubber hose, cause if it does... I don't have that rubber hose... Crap...

 

Ahhh! Stainless steel braided hose? Not solid tubing?

Yes, there is probably is a hose from the end of the steel tubing up over the tank to the fitting on top. And, in spite of it being very sheltered from the sun, mine was bad. You should check yours.

 

No, no...

The stuff I had before was this solid nylon tubing... which was crap.

I am replacing ALL of the fuel hoses with SOLID STAINLESS STEEL TUBING!

About the rubber hose going from the SOLID STAINLESS STEEL TUBING to the gas tank, I have no idea... I'll have to look when it gets here.


lol Gary.

 

Ok, I give. I forgot what all you said before. Bad case of Oldtimers. So, I went back and reread it.

However, I doubt you can really have solid line the whole way. Surely you will have hose from the line coming from the tank to the fuel pump. Otherwise, when the engine moves on its mounts the line will flex and ultimately something will break.

Anyway, I'm going to discontinue opening my mouth as I've run out of feet to put in there.

 

What company did you go with for your prebent lines? I am currently working with my brake and fuel lines from Inline tube, and I am not having the best of luck. For that price and the amount of effort I'm going through with tweaking things, I should've bent my own front to back.

And from the fuel line to my one and only rear tank it is about an 8'' piece of standard fuel rated hose.

 

I'm buying all the lines and what not from LMC Truck.

 

Well, my gas tank has a leak in it...

Which means, i'm going to have to get a new one!

And no, I won't be getting it from a junkyard, even though it'll be cheaper...


However, if I buy a fuel tank, I need to get everything that goes in it and connects to it, too...