302 won't start
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Joined: Jan 2014
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From: Ridgecrest ca
302 won't start
Hey guy's need some help I have a med 70's ford 302 in a 37 ford. It was running a little rough and over heating. Water pump been replaced and had the rad roded out still over heating I replace the cam and had the heads work on put it all back together.
Now it won't start. The timing is ok the distributor is wired right the plug wire is in the right firing order. I have spark and fuel. it pops and back fire through the carb and the exhaust. Not sure what's left. Any help would be appreciated thanks
Now it won't start. The timing is ok the distributor is wired right the plug wire is in the right firing order. I have spark and fuel. it pops and back fire through the carb and the exhaust. Not sure what's left. Any help would be appreciated thanks
Post Fiend
Joined: Jun 2003
Posts: 8,209
Likes: 12
From: Black Hills of SD
You are probably going to find the timing is 180 out, isn't close or you have the plug wires on wrong. In fact I would be curious how you determined the timing was right if you haven't had it started. Not saying it isn't possible.
Is there a healthy spark? Have you done a compression test to see if the valves are closing right?
Why did you pull the heads? Did you do a test for a leak, or was it just your best guess?
Is there a healthy spark? Have you done a compression test to see if the valves are closing right?
Why did you pull the heads? Did you do a test for a leak, or was it just your best guess?
Post Fiend
Joined: Jun 2003
Posts: 8,209
Likes: 12
From: Black Hills of SD
That all depends on how new of heads you have. Sometime in the late 60s they went to a rail style that you don't adjust, just tighten down. Pretty crappy system and Ford is rumored to have used longer and shorter pushrods. What is the casting number on the heads? It will start with something like D2XX-. Could also start with a C or E. Picture of the rockers would help a lot too.
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