GMCforum
For enthusiast of the Classic GMC Motorhome built from 1973 to 1978. A web-based mirror of the GMCnet mailing list.

Home » Public Forums » GMCnet » Fuel tank cleaning
Fuel tank cleaning [message #263004] Mon, 29 September 2014 17:18 Go to previous message
bpimm is currently offline  bpimm   United States
Messages: 211
Registered: June 2013
Location: Washougal Washington
Karma:
Senior Member
Just getting ready to park the coach for the winter as my season is over. We had it out 5 times over the summer and after trip 1 I discovered rusty water in the rear tank, front tank had none that I could drain out but the rear tank had 3-4 gallons of water in it, hard to say exactly how much but I drained a bunch. To get through the season I added a fuel water separator / 12 micron filter thinking that would be enough but apparently the inlet filter on the QJ is finer than 12 microns and on the second outing I only made it 30 miles before it plugged. Fortunately we were still in town and got 3 filters from a parts store and took 2 more to complete the 320 mile round trip. I added a bunch of Neodymium magnets to the bottom of the tanks to try to lock the rust in the tank and that seems to have helped, the last trip was made on 1 filter. Now it's time to drop the tanks and get this problem taken care of, I'm going to replace all the fuel lines while they're out as well and probably add an electric fuel pump as well as fixing the sender in the Aux tank, it always reads full.

Anyone have any suggestions for getting the tanks cleaned out and what about these gas tank sealers that are available, are they any good? I have read mixed results with them and with tanks this size it could be a pain to apply properly. Of course final decisions will be made after the tanks are out and inspected.

The other question I have is where did the water come from?

Thanks for any insight.


Brian & RaeDean 1973 26' #383 Washougal WA

[Updated on: Mon, 29 September 2014 17:19]

Report message to a moderator

 
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Previous Topic: [GMCnet] Off topic: Marry Christmas to All
Next Topic: OEM vs Alcoa lug nuts
Goto Forum:
  


Current Time: Sat Apr 27 16:36:18 CDT 2024

Total time taken to generate the page: 0.02597 seconds