'72 4320 PTO

[Shawn]

anyone have the compressed spring height demention for the 2 springs on the PTO infront of the two pistons in the bellhousingbehind the clutch plate?

TIA

 

[tim s]

The hieght of those two springs is not important, just be sure that the bolts do not proturd through the houseing and keep it from drawing down evenly to the clutch houseing. "BUT", the hieghth of the PTO levers are "very" important, it's 2 1/4 inches from the flat rim of the outer cover for the stock adjustment, I give it another 1/4 inch to keep the operating pistons from comming out farther, this helps to keep more of the piston in the bore and helps make the o-rings last longer, also keeping them absolutely even in hieghth keeps the pistons from "pulseing" when operating, if they pulse strongly they soon eat up the o-rings, make sure the piston houseing is not worn also, I had to replace one in a late 4020 last week, and did a 4320 the week before.Before and after you repair one look up into the clutch houseing while the PTO is on and you will see what I mean.