I borrowed this picture from 1stGen545 (thanks) :

http://s290.photobucket.com/albums/l...t=HPIM1298.jpg

What purpose do all the complications serve ??

Many applications of the VE-pump have only a simple lever.

What is the pin that sticks up for ??

When completely assembled, that pin has a spring around it.

What purpose does the bolt in the slot have ??

Thanks.

 

bolt in slot is more idle adjusment

 

That pin is for the breakover spring, the pin in that photo is also about halfway worn thru, I would guess the spring was also, if not broken off. That lever with the pin is about $75.00 if I remember correctly. You can braze that pin and file it to the original diameter if you want to save some bucks. Wear like that affects the idle setting, throttle travel (sloppy) and transmission TV-Cable settings. The rectangular breakover spring rest get's worn also. The breakover spring is reasonable to replace IIRC.

 

The breakover spring is there to limit the amount of force that the throttle linkage can apply to the throttle shaft and bushings.

 

About half the engines I see are missing that pin.

Many around my area have somehow inserted a piece of 1/8" welding-rod in place of the pin.

 

Sounds like a good fix. I've also heard of using the collar off an insulated crimp-on electrical connector as a bushing.

 

Do you mean = remove the plastic from the crimp-terminal and put the plastic over the pin on the throttle ??

Thanks.

 

In fewer words, yes. Not permanent, but cheap and easy.