What the heck is going on now?

[motormayhem]

Well I am in the process of hooking up the old filter block to get my water in fuel light back in operation. I also just finished checking fuel flow from the lift pump according to the tm and i doubled the minimum requirement. I am also installing a coolant temp gauge cause I dont trust the idiot light and while I was in there I noticed the rubber fuel line from the lift pump seems to be kinked pretty badly only when the air cleaner is on. I am thinking this might be the problem cause I flow tested it with the air cleaner off so I could get a bottle in there. I cant remember the last time I had the air cleaner off but it wasn't to long ago. I am going to get a new fuel line tomorrow and pressure test the fuel system and take it out for a spin. Also for the flow test I pumped about 1/2 quart of diesel into a container and it didn't have rtv in it so I think that might have been an unrelated freak thing.

 

[12vctd]

Hopefully its just a fuel supply issue with that line, and fixing it will restore your power and drivability. A kinked line would cause all the problems you are having, and putting a manual temp gauge is a great addition. good luck

 

[motormayhem]

Ok it runs again. The pinched fuel line was the problem for low power, but the filter is still clogging about once a week. Should I keep cleaning it and wait till it is all out or drop the tank and clean it (never done it before, but sounds like a lot of time)?

Here is a pic from 2 miles of driving

 

[Buckmaw]

It sounds like you had some B100 Bio-Diesel in your tank.
That stuff will tear apart rubber hoses in older diesels at full strength...

 

[motormayhem]

It sounds like you had some B100 Bio-Diesel in your tank.
That stuff will tear apart rubber hoses in older diesels at full strength...

It did have wvo in it for a day about a year ago but mixed to 60/50 with diesel. I thought most of the lines were steel and the ones that weren't were black rubber ones.

 

[fireman9]

I'd still drop the tank and have a look-see. You shouldn't have all that crud in there. Some diesel fuels have some problems of Algae building in the tanks Here'a a link talking about it ALGAE-X Diesel Fuel Treatments I don't endorce any product over anything else but they cover the cause pretty good in the write-up. I'd also clean or change the sock on the fuel pickup while the tank is out.

 

[12vctd]

You need to clean the tank, the hardest part is just removing the straps soak them a few days with Pb blaster or something similar. TRy to make sure you tank is as clase to empty as possible. Also I know everyone has a opinion but that inline filter is not recomended for a diesel aplication, they are notorious for getting air leaks in them. In your pic you can even see a small air bubble.

 

[motormayhem]

I am not really sure what happened but I added a new filter system and a bottle of diesel clean and the problem was solved. No more flakes in the filter.

 

[joeypushjr1]

thats good to hear . glad your got her fixed and didnt have to sell her..

 

[kentuckycucv]

My "guess" would be that somone took the top off of the tank to get to the sending unit in the past and sealed it with rtv....and a chunk ended up in the tank.... glad it all got sucked into your filters.