0 Psi in #4

J

JEB91SY

Sy#1299
I need some help guys. As it states, I have 0 psi in cylinder #4 for the second time. I replaced the heads with stock heads at 68,535 and it now has 72,053 and has the same concern as the 1st time. Concern-is obvious misfire, tach as well as boost gauge bouncing, once rpm's hit about 2,500-2,800 engine seems to have decent power. When I pulled the heads the first time, the exhaust valve (#4) looked as if it was about to get sucked through the head. I'm the 2nd owner of the truck and it had just over 58k when I got it in 04. Thanks for any help guys, Jesse
 
jwaller

jwaller

Evil Genius/SyTy Guru
Re: 0 Psi in #4

sounds like another valve problem. these engines are not known for these types of problems so it sounds like a mechanic isnt doing something right.
 
J

JEB91SY

Sy#1299
Re: 0 Psi in #4

What you'd you think is being done wrong? I really want to keep my truck, but I'm moving to Florida in a couple of months and can't really afford to put in money into it right now. Any Sy/Ty'ers in the Melbourne area that can help me out in a couple of months?
 
J

JEB91SY

Sy#1299
Re: 0 Psi in #4

Well I got the head off today and the exhaust valve made contact with the piston :rant: :rant: I may be parting out this truck, unless someone has a complete motor they would sell me :tup:
 
Last edited:
bezerk

bezerk

New member
Re: 0 Psi in #4

JEB91SY said:
Well I got the head off today and the exhaust valve made contact with the piston :rant: :rant: I may be parting out this truck, unless someone has some parts laying around they want to sell????
Click to expand...

is your piston hurt?
 
J

JEB91SY

Sy#1299
Re: 0 Psi in #4

It's not cracked, but you can see where it hit. I don't know how to post pictures to show you.
 
J

JEB91SY

Sy#1299
Re: 0 Psi in #4

Cool, I will try those sites. In the meantime, does anyone have an engine for sale or do I need to post that comment in a different thread?
 
bezerk

bezerk

New member
Re: 0 Psi in #4

get another head. and risk the $60 you put in there for gaskets and see how it holds up. just MO
 
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