The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Truck cranks but does not Start... BLown head? bad carb? off timing?

bill3rail · 07-16-2018, 11:44 PM

Bad carburetor can fill your oil with fuel.
If all the plugs look like that, it is not too bad. I have seen ten times worse than that in the recent past.

First off, you must start with one issue at a time!

Does it have spark?

Do all cylinders have compression? How much pressure in each?

Is it getting fuel? Too much as you hinted towards is a problem.

Just some quick thoughts before I fall asleep.

Bill

07-16-2018, 11:44 PM	#3
bill3rail Registered User Join Date: Jul 2013 Location: LI, NY 11801 Posts: 1,140	Re: Truck cranks but does not Start... BLown head? bad carb? off timing? Bad carburetor can fill your oil with fuel. If all the plugs look like that, it is not too bad. I have seen ten times worse than that in the recent past. First off, you must start with one issue at a time! Does it have spark? Do all cylinders have compression? How much pressure in each? Is it getting fuel? Too much as you hinted towards is a problem. Just some quick thoughts before I fall asleep. Bill __________________ 1970 C10 8' Fleetside, L6 250, 3 on the Tree. The most basic of pickup trucks!