ok, for some reason, i am having a heck of a problem understanding exactly how to set the pinion angle on my spohn TA.

the directions say to subtract the reading of the pinion from the reading of the driveshaft, and that is the pinion angle, for which i am looking to get -1 degree.

here are two pics of the indicator, taken from the passenger's side of the car...



and...



now, if i am reading the directions correctly, i take the driveshaft angle which is 2.5*, and subtract from it the "pinion" angle, which is 3.5*. that gives me -1*.

is that correct? or are the readings taken relative to something else? if you have any light to shed on this, PLEASE help. i have done a couple searches, and havent gotten any concrete answers. thanks...

-brian

 

why don't you post this on multiple boards and maybe you'll get more responses? oh wait you've already done that, never mind.

 

well, with all do respect, and not to sound like a jerk, that WAS the plan. there are many people on this site that only read and post within certain boards, so i figured i would hit all that were relevant to my question.

i did a pretty extensive search, and like i said, i didnt really find any good answers. so, i figured instead of posting the same question on three different boards a few days apart, in hopes of getting the best information possible, i would just do it all at once.

sorry if i stepped on any toes.

-brian

 

That's backwards.

If the drive shaft angle is 2½°, and the pinion angle is 3½°, then the difference of (pinion angle) - (drive shaft angle) = +1°.

You'd want to get the pinion set to around 1-1½°. 1½ - 2½ = -1, which is where you want to be; somewhere between -1° and -1½°.

Another way of checking to make sure you haven't outsmarted yourself, is to remember that the pinion needs to point downward compared to the drive shaft, so that it moves toward being in a straight line when torque is applied at launch.