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Old 10-15-2012, 12:43 PM   #26
wilkin250r
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Re: help me start my engine plz

That sounds like a vacuum leak.

Your engine creates a pretty strong vacuum when the throttle is closed, and your carburetor relies on that strong vacuum to feed the fuel when the throttle is closed. An air leak will reduce that vacuum. If your strong vacuum becomes a weak vacuum because of an air leak, then the carburetor doesn't feed the fuel properly. No fuel equals no run.

What kind of carburetor is it?
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Old 10-15-2012, 01:42 PM   #27
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Re: help me start my engine plz

Its a Rochester varajet 2, 2barrell carb
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Old 10-15-2012, 05:30 PM   #28
wilkin250r
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Re: help me start my engine plz

I'm not really familiar with that carburetor, I can't help you on the configuration of that one.
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Old 10-16-2012, 01:19 AM   #29
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Re: help me start my engine plz

Ive got the same motor in my truck right now, there something like 50 vacuum lines running around to all sorts of places. Make sure the 4 carb to intake bolts are tight. The rear closet to the valve cover in a P.I.A to tighten.

Left side of photo is the firewall, Right side is core support

lots of vacuum lines, I pulled almost everything off and plugged em off

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Old 10-16-2012, 01:27 AM   #30
86C10LWB
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Re: help me start my engine plz

Lets try this again

The delay valve will tell you which side is dist and which is manifold(carb)

Everything else is pretty simple
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Old 10-16-2012, 02:18 AM   #31
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Re: help me start my engine plz

THANK YOU!!!!!
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