Harpooning - Diesel Forum

coonman111 · 07-06-2009, 03:11 PM

Whitch is easyer to do lift the bed or drop the fuel tank to Harpoon? Also do you cut both tubs off.Thanks

bismic · 07-06-2009, 09:08 PM

I just unbolted the bed and jacked it up on the end by the cab. I put wood blocks in between the bed and the frame to support it and did the mod. Very easy this way.

mountainview · 07-07-2009, 08:30 AM

Sorry to cut in! What is Harpooned?

LOOSEWHEEL · 07-07-2009, 09:12 AM

Quote:

Originally Posted by mountainview

Sorry to cut in! What is Harpooned?

Harpoon mod

ABrown134 · 07-08-2009, 10:00 AM

I've done two of them now. It took about 3 hours for the first one, and an hour for the second. Amazing how much faster it goes the second time. For both of them, we dropped the tank. Only had a few gallons in the tank each time so it was very easy to handle. Both were FX4 models so there was the skid plate to contend with.
If I remember correctly, 4 bolts for the skid plate, 4 bolts for tank mounts, remove filler and vent hose, fuel lines and sending unit. Open tank from top and cut off the vent tube drop only. I left about an inch on it.
Reverse procedure to re-install.
When pump shuts off now, I only have to trickle in the last gallon instead of the last 5. Overall, a very worthwhile mod.

Aaron

coonman111 · 07-09-2009, 01:59 PM

Thanks guys Ill give it a try.

FMTRVT · 07-09-2009, 03:40 PM

40 minutes when you get good

Nubbs · 07-14-2009, 10:46 AM

I've done two of them now and dropped the tank both times.