Joined: Sun May 26, 2019 7:47 am Posts: 19
Vehicle: 1989 Sierra Tintop
Posted: Sun Jul 21, 2019 1:03 pm
Hey guys,
I've just swapped over the carb on my sj50 due to choke issues. The carb I'm putting on is very slightly different, plus I've forgotten where these two vacuum lines go? They are the lines coming out the side under the accelerator pump. Can't get a photo sorry, hopefully you know which ones I'm talking about
Joined: Sat Oct 06, 2012 5:49 pm Posts: 1975
Vehicle: Sierras!! SWB and LWB
Posted: Sun Jul 21, 2019 5:32 pm
Off memory, one of those goes to the vac advance on the dizzy. You could block any of the others or run them to random vac ports (this was it sill looks like there’s an emissions control system hooked up). It won’t make any difference to the vehicle running as long as there is no vac leak into the manifold
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