Farmall706guy
Member
I am in a confused state right now and need help. My 1966 706 with the d282 has the automatic advance circuit on the bottom of the injection pump. I have studied it, and how it works, higher rpm's
higher pump pressure pushes on a spring with a ball on the end of it, then to a power piston unit, pushing it out. while the opposite side of it, there is another piston but has an advance spring
behind it. that spring must push the piston out at idle, to advance the injection timing... ANYWAYS, there is an adjustment for the unit, and i am turning the screw clockwise. after i did that, the
tractor actually ran better at high rpm's, there was hardly any popping or poofing. before i adjusted it, it was pretty bad. the diagram i am looking at doesn't show the adjustment screw. I'm not sure
why. my main question here is, I want to know exactly if the advancement of injection BeforeTDC increases or decreases when i adjust this screw and lock nut in CLOCK wise. see, i adjusted it in
clockwise a few turns while the motor was running at 2000 rpm. and a lot of poping and fluttering went away, it really cleared it up. thank you for any help acquired.
P.S. the reference for the diagram is on page 29 of this link http://www.stanadyne.com/dealerportal/ssi/english/Product%20Manual/99523.pdf
higher pump pressure pushes on a spring with a ball on the end of it, then to a power piston unit, pushing it out. while the opposite side of it, there is another piston but has an advance spring
behind it. that spring must push the piston out at idle, to advance the injection timing... ANYWAYS, there is an adjustment for the unit, and i am turning the screw clockwise. after i did that, the
tractor actually ran better at high rpm's, there was hardly any popping or poofing. before i adjusted it, it was pretty bad. the diagram i am looking at doesn't show the adjustment screw. I'm not sure
why. my main question here is, I want to know exactly if the advancement of injection BeforeTDC increases or decreases when i adjust this screw and lock nut in CLOCK wise. see, i adjusted it in
clockwise a few turns while the motor was running at 2000 rpm. and a lot of poping and fluttering went away, it really cleared it up. thank you for any help acquired.
P.S. the reference for the diagram is on page 29 of this link http://www.stanadyne.com/dealerportal/ssi/english/Product%20Manual/99523.pdf