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Discussion Starter #21
I got the p0304 code now showing misfire in cylinder 4. I checked everything and I have no compression in the cylinder. I pulled the valve cover off and springs looked ok. Im going to have to pull the head and check the valves and seats. I’ve never taken on a repair this big so wish me luck
 

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I got the p0304 code now showing misfire in cylinder 4. I checked everything and I have no compression in the cylinder. I pulled the valve cover off and springs looked ok. Im going to have to pull the head and check the valves and seats. I’ve never taken on a repair this big so wish me luck

If it's a ford it probably blew a spark plug out, mine did. It's apparently common on ford v8s.


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Discussion Starter #23
If it's a ford it probably blew a spark plug out, mine did. It's apparently common on ford v8s.


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Chevy express v6, I changed all plugs, wires , and distributor cap. All that needed to be done anyway. I borrowed all these diagnostic tools from Autozone. I did the fuel pressure bleed down test, the noid light at the spider test, the compression test. Since it had no compression whatsoever they say to pour some oil in the cylinder and try again, if it’s bad piston rings it’ll build some pressure if it still has zero (which it does) it’s a stuck or bad valve.

I’ve watched so many YouTube videos and have been reading my manual trying to get the confidence to tackle it.
 

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Debo 22

I know how you feel, I had to pull the heads and Intake manifold
on my 65 Buick V6 back in 1975
I was in the service at the time so did not have any family close,
I worked with a MOTORS book and a friends tools, I had seen this done many times growing up but this was the first time on my own :biggrin:
 

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Chevy express v6, I changed all plugs, wires , and distributor cap. All that needed to be done anyway. I borrowed all these diagnostic tools from Autozone. I did the fuel pressure bleed down test, the noid light at the spider test, the compression test. Since it had no compression whatsoever they say to pour some oil in the cylinder and try again, if it’s bad piston rings it’ll build some pressure if it still has zero (which it does) it’s a stuck or bad valve.

I’ve watched so many YouTube videos and have been reading my manual trying to get the confidence to tackle it.
I rebuilt many a chevy motor..the problem you will run into is if you fix the upper end, the heads with a rebuild is that you can now blow out the lower end because it is still worn with high miles..not all the time, but now you will have tight valves and seals ontop and worn rings on the bottom...
if you take your time its not difficult todo, but just take alot of pictures showing where everything goes back and you drop the distributor back in the correct timing..
 

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I guess you have another work van while you are working on this one? I'm also surprised you can pull the head, the space seems so restricted from the hood on even from inside the cab. Good thing it's not dead of winter working in the driveway and freezing fingers.

With so many more calls now I would of sent it to the garage instead of doing it myself. Probably rent a cube truck in the process because of the lack of shelves in a van.
 

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I guess you have another work van while you are working on this one? I'm also surprised you can pull the head, the space seems so restricted from the hood on even from inside the cab. Good thing it's not dead of winter working in the driveway and freezing fingers.

With so many more calls now I would of sent it to the garage instead of doing it myself. Probably rent a cube truck in the process because of the lack of shelves in a van.
I was in too deep before I realized it was a bad idea. I should have taken it in but now that I’m this far I’ll have to finish the job.

Most of my jobs are fairly close to home so we load up the install truck with what we need for the day so it hasn’t been too bad.
 

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I was in too deep before I realized it was a bad idea. I should have taken it in but now that I’m this far I’ll have to finish the job.

Most of my jobs are fairly close to home so we load up the install truck with what we need for the day so it hasn’t been too bad.

Just like the guy who takes apart half his faucet and can't finish the job and calls a plumber! :LOL:

I did that a few times, taking the entire front suspension off a terrible Kanada 4Runner. Or taking the head off and head bolts breaking in there, overhauling transmissions, differential and more. But seriously if you can find a head just put everything back with fresh gaskets.
 

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Just like the guy who takes apart half his faucet and can't finish the job and calls a plumber! :LOL:

I did that a few times, taking the entire front suspension off a terrible Kanada 4Runner. Or taking the head off and head bolts breaking in there, overhauling transmissions, differential and more. But seriously if you can find a head just put everything back with fresh gaskets.
I figured since I’m this far I might as well replace both heads.
 

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Remember what ShtRnsdownhill posted
I grew up my father was a Master Mechanic and growing up with him saw and heard this many times !


I rebuilt many a Chevy motor..the problem you will run into is if you fix the upper end, the heads with a rebuild is that you can now blow out the lower end because it is still worn with high miles..not all the time, but now you will have tight valves and seals on top and worn rings on the bottom...
If you take your time it's not difficult to do, but just take a lot of pictures showing where everything goes back and you drop the distributor back in the correct timing..
 
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