FDC bypass/ new fuel tank/ new pump/boost-egt meters

[Adam Brice]

Hi guys,
Just wanted to brag for a second....
My 1970Am Gereral 109 was very lethargic. Found out my lift pump wasnt working, and kept popping fuses, so I went ahead and just bought a new pump. Went to change it, found inside of tank was horrible, so I pulled tank, cleaned out gobs of rust, pressure washed, dried, and reinstalled...Poured fresh fuel in and watched it all run out the bottom! Tank was now full of holes.
So, I bought a NOS tank, and figured I'd put in a boost/egt gauge while I wait for shipping. Also did the FDC bypass.
Got everything together last night. WHAT A DIFFERENT TRUCK!
Have not adjusted any fuel yet, cover plate on fdc is still safety wired, but it runs great.
1175 max egt, with about 8-11 lbs boost, at wot, 5th gear, flat ground lugging it, WITH 2-550 gallon water tanks FULL in the bed! Seems to smoke as it should, lots more power, and I can actually get 2500-2600 rpm now in the lower gears. It also starts much easier this morning than ever before, granted it stayed in the garsge last night, instead of outside, where the low temp was 22 degrees.
Now I gotta find some new rubber, my 900-20's are getting really dry and cracked.

 

[rustystud]

Hi guys,
Just wanted to brag for a second....
My 1970Am Gereral 109 was very lethargic. Found out my lift pump wasnt working, and kept popping fuses, so I went ahead and just bought a new pump. Went to change it, found inside of tank was horrible, so I pulled tank, cleaned out gobs of rust, pressure washed, dried, and reinstalled...Poured fresh fuel in and watched it all run out the bottom! Tank was now full of holes.
So, I bought a NOS tank, and figured I'd put in a boost/egt gauge while I wait for shipping. Also did the FDC bypass.
Got everything together last night. WHAT A DIFFERENT TRUCK!
Have not adjusted any fuel yet, cover plate on fdc is still safety wired, but it runs great.
1175 max egt, with about 8-11 lbs boost, at wot, 5th gear, flat ground lugging it, WITH 2-550 gallon water tanks FULL in the bed! Seems to smoke as it should, lots more power, and I can actually get 2500-2600 rpm now in the lower gears. It also starts much easier this morning than ever before, granted it stayed in the garsge last night, instead of outside, where the low temp was 22 degrees.
Now I gotta find some new rubber, my 900-20's are getting really dry and cracked.

These old trucks just need regular maintenance, and they will surprise you with the performance they will give you.
Good job !

 

[gimpyrobb]

Try not to lug it, thats bad for them. If you run it hard for a couple hours, it will run even better.

 

[rustystud]

Try not to lug it, thats bad for them. If you run it hard for a couple hours, it will run even better.

Exactly ! Run it like you stole it !
It helps seal the piston rings too.