Is my mechanic wrong?
Thread Starter
Melting Slicks
Joined: Jul 2004
Posts: 2,295
Likes: 14
From: Grand Sport #82
Is my mechanic wrong?
For the fist time, I have my vette at a shop to get fixed (LT4). I have always done all work myself, but I simply do not have the time right now.
So here is the deal.
I am having the valve seals changed, any I talked to my mechanic yesterday, asking how he was progressing.
I became aware when we where discussing it, that I doesn’t do this as I would have done!
He don’t set zero lash, where you turn the push rod between your fingers, at a given position for the valve.
He just put the rocker back on, and tightens it down. Told me that’s the way to do it on these cars.
???
I am not sure here, when I replaced the rockers to RR 1.6 on my 87 I turned the engine and set zero lash on each..
So here is the deal.
I am having the valve seals changed, any I talked to my mechanic yesterday, asking how he was progressing.
I became aware when we where discussing it, that I doesn’t do this as I would have done!
He don’t set zero lash, where you turn the push rod between your fingers, at a given position for the valve.
He just put the rocker back on, and tightens it down. Told me that’s the way to do it on these cars.
???
I am not sure here, when I replaced the rockers to RR 1.6 on my 87 I turned the engine and set zero lash on each..
Safety Car
Joined: Apr 2002
Posts: 3,531
Likes: 1
From: Conroe TEXAS!
Cruise-In X Veteran
If its anything like a gen 1 (which i think its basically the same, most of the valvetrain is interchangeable with an L98) Hes full of ****. Id talk with him again before you end up with bent pushrods or other valvetrain damage.
Last edited by Firevette; May 29, 2008 at 02:37 AM.
Thread Starter
Melting Slicks
Joined: Jul 2004
Posts: 2,295
Likes: 14
From: Grand Sport #82
Drifting
Joined: Oct 2003
Posts: 1,405
Likes: 4
From: Lorena Texas
Thread Starter
Melting Slicks
Joined: Jul 2004
Posts: 2,295
Likes: 14
From: Grand Sport #82
Im nut sure here, can my mechanic just take the rockers off, replace the valce seal, and then just put it back on and torqued it to 25Nm?
Drifting
Joined: Oct 2003
Posts: 1,405
Likes: 4
From: Lorena Texas
I dont see why the position of the engine would make any difference other than no resistance on the rocker when the valves are closed.
Last edited by GS023; May 29, 2008 at 01:41 PM.
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Drifting
Joined: Oct 2003
Posts: 1,405
Likes: 4
From: Lorena Texas
It is not a terribly difficult job. You need a way to hold the valve closed (compressed air through the spark plug hole to pressurize the cylinder) and a valve spring compressor. There is a device that attaches to the rocker stud to accomplish this.
Burning Brakes
Joined: Aug 2006
Posts: 780
Likes: 0
From: New Port Richey Florida
If your mechanical inclined and have a FSM and a basic set of tools you can get it done it certainly will be the cheapest way out, even if you have to buy a valve spring compressor and a couple of misc items you'll probably only spend $100 parts and all, if you have a friend that's done the job it's time to invite him over. If you have to farm it out anything around $300-400 is a bargain and I seen a lot of shops charge a $1000 or more. Problem is on these old cars other stuff breaks or is worn out when you take them apart like rockers,push rods, ign wires,hoses etc. Good luck.
