2g intake on a 1g head

[heavymetal101]

im thinking its the gasket because i snapped the number 1 bolt in the block, and had to take off the head, and i removed the gasket after being torqed down to 80 ft pds, then used the same gasket and torqed them down to haynes and chilton manual at 58 then loosen, then 15 and 90 degree turn. I im confendent about that its the gasket. when i first bought the car from a blown gasket no cylinder had compression. I checked the rings, and the bottom end, and its all with in spec and didnt need to be rebuilt or need new rings. The head i bought came from a working 4g63 2g with no problems. So its not the head. Got to be the Gasket, on top of that i have a oil leak and the oil looks a little green. So once again i think its the Gasket and i messed up when i installed it. My fault

 

[Bud92gsx]

So did you replace the gasket, when you swapped the head?

 

[4g63mirage]

Head gasket issue rarely affects compression even if its leaking coolant/oil

My vote is on the head/valves

 

[Bud92gsx]

He did just replace the had, so that's probly where you should first start..Elimanate problems by finding out what's wrong with the last thing you did..

 

[heavymetal101]

ill check the head again, this time ill have a shop look at the head. Once i get it off. Yes i changed the head gasket. it was a new felpro. Im sorry i have to disagree with you, when you blow a head gasket it does affect compression.

 

[heavymetal101]

OK guys, I was wrong. I took off the head, the gasket was a little messed up, but i didnt notice when i installed the head that cylinder two valves are bent and not closing all the way. So the head that i bought has to be rebuilt. I have a feeling that the valve seating is bad. From the way it looks, it isnt worth rebuilding. We shall see. Tomorrow I am calling the business were i bought the head from and going to try and get my money back.

 

[shredwin]

how do you know they are bent? I can remember very well but, when I had my head out 2 of my valves were not fully closed thats normal

 

[heavymetal101]

how do you know they are bent? I can remember very well but, when I had my head out 2 of my valves were not fully closed thats normal

I rotated the cams, and i watched the all the valves open and close. When it got to cylinder 2, the valves would open but not close fully. There is about a good 1/4 or 1/2 a inch of room maybe less.

 

[shredwin]

I didnt know you rotated the camshafts, but since u did and looked then yes they are most likely bent. those are not too bad to replace.

 

[rbwtrans]

Remove the cams and pour water or some other liquid into the cylinder ports. If the valves are leaking or bent, then the liquid will leak past the valves.

 

[heavymetal101]

I took out the valves, and the valve were way to bent. Replaced them with new ones. Then just got done cleaning the head. Going to install it tomorrow. If this doesn't work then its time to buy a new head from autozone