New cylinder head UPDATED (56k no way)
06-02-2005, 03:34 PM
#23
3.0 BAR
Thread Starter
Join Date: Aug 2004
Posts: 2,028
Re: Did I get screwed?
Just got back from the machine shop, he thought it was warped at first but he got out the straight edge and feeler gauges and checked it all out. It's not warped, atleast not to the point where it would cause the gasket not to seal it.
He also said this that was interesting, he said that it had been previously rebuilt (I'm guessing when it was p/p'd) but it had also been overheated since because there was a little tab on it and the center had melted out (the metal in the center melts at like 260 degrees). So we figured thats why it was milled. Then he said it had obviously been run since it was rebuilt, for a long time, cause there is a ton of build up on the valves.
Basically it boiled down to $160 to have it rebuilt, valves ground, checked for cracks, and totally cleaned.
Thanks for all the input, not sure what I'm going to do now.
He also said this that was interesting, he said that it had been previously rebuilt (I'm guessing when it was p/p'd) but it had also been overheated since because there was a little tab on it and the center had melted out (the metal in the center melts at like 260 degrees). So we figured thats why it was milled. Then he said it had obviously been run since it was rebuilt, for a long time, cause there is a ton of build up on the valves.
Basically it boiled down to $160 to have it rebuilt, valves ground, checked for cracks, and totally cleaned.
Thanks for all the input, not sure what I'm going to do now.
06-02-2005, 03:56 PM
#24
0.0 BAR
Join Date: Jan 2005
Posts: 0
Re: Did I get screwed?
This pic worrys me the most..........look at the seats and valves
It's a above average porting job from JG, which ain't saying a whole lot!!!!!
Have the exhaust guides checked out. With them cut back that far they tend to wobble and use oil.
That along with it being overheated AFTER it was PnP, then milled is why the valves look so brown.
It's a above average porting job from JG, which ain't saying a whole lot!!!!!
Have the exhaust guides checked out. With them cut back that far they tend to wobble and use oil.
That along with it being overheated AFTER it was PnP, then milled is why the valves look so brown.
06-03-2005, 09:53 AM
#26
Administrator
Join Date: Dec 2002
Posts: 13,991
Re: New cylinder head
jesus, you guys are *******, that head isnt that bad at all. A little carbon build up and your freaking out like the head is destroyed or something. It's pretty obvious the head was fully redone by JG... probably like 4-5 years ago and the head has been on the car ever since. The tab that was melted off was more than likly taken off by JG when they do the rebuild.
Now as far as the price, I'm sure that head probably cost 1000 bucks back in the day when it was done, but I wouldnt pay more than 500 bucks for it now.
If your stuck with the thing, I'd just take all the valves out, wire wheel all the carbon off, give them a quick lap and wire brush the CC.
Now as far as the price, I'm sure that head probably cost 1000 bucks back in the day when it was done, but I wouldnt pay more than 500 bucks for it now.
If your stuck with the thing, I'd just take all the valves out, wire wheel all the carbon off, give them a quick lap and wire brush the CC.
06-03-2005, 11:53 AM
#27
3.0 BAR
Thread Starter
Join Date: Aug 2004
Posts: 2,028
Re: New cylinder head
Originally Posted by AbaZ
jesus, you guys are *******, that head isnt that bad at all. A little carbon build up and your freaking out like the head is destroyed or something. It's pretty obvious the head was fully redone by JG... probably like 4-5 years ago and the head has been on the car ever since. The tab that was melted off was more than likly taken off by JG when they do the rebuild.
Now as far as the price, I'm sure that head probably cost 1000 bucks back in the day when it was done, but I wouldnt pay more than 500 bucks for it now.
If your stuck with the thing, I'd just take all the valves out, wire wheel all the carbon off, give them a quick lap and wire brush the CC.
Now as far as the price, I'm sure that head probably cost 1000 bucks back in the day when it was done, but I wouldnt pay more than 500 bucks for it now.
If your stuck with the thing, I'd just take all the valves out, wire wheel all the carbon off, give them a quick lap and wire brush the CC.
06-03-2005, 05:46 PM
#30
3.0 BAR
Join Date: Feb 2005
Posts: 4,935
Re: New cylinder head
you ------ homos, why is everyone hating? mike is a great guy, hes been helping HMT out with clutches and many things for so long, hes helped me out on my Z with parts all the ------ time, looks like it was left in the rain, maybe fedex had the box rained on, or maybe you left it outside for a week in the rain, its a used head, and used heads dont come perfect, especially performance used heads. damn 
