Sticking Throttle (ea81 holley 180)

[BobBrumby]

I just got round to jb welding up the coolent pasage under my adapter plate after having it leak for some 30k km. After taking ot for a spin I realised that the throttle sticks, if you turn the thottle linkage on carb by hand it also sticks. It started doing this a bit before I pulled the holley off again but not as bad, it was and still is an intermitent problem. I did do the carb base bolts up pretty tight and I read you can warp the base of the carbi, will loosening fix it back up? Should I just get a return spring? As its not hard to turn the linkage back by hand. I am running some radiator flush it it atm so its running a little hotter than usual would this effect it? Note: when I first installed carb 30k km ago there was no sticking, and has only popped up in the last 5k km, this was before I bolted it down for the second time. Also how hard are holley 180s to rebuild? Another thing with the small coolent lines, I blocked off both the holes in the manifold and ran the one on the block to the one on the heater core feed, is this bad?

 

Cheers

[Jerry DeMoss]

It is possible that you warped it a little or just distorted it from over tightening. I think loosening the base just a little would be a good idea to start with. Also try spraying some carb cleaner on the shaft and that may help free it up a little bit.A return spring would be a bad idea especially if you end up having trouble with that when you are out mucking around in your car.

[BobBrumby]

Yeh just for future reference it turned out to be a sticking thottle linkage, a little carb cleaner and wd40 seemed to fix it.

 

Another thing with the small coolent lines, I blocked off both the holes in the manifold and ran the one on the block to the one on the heater core feed, is this bad?