zo6 Rocker Arm mix up
03-16-2012, 10:53 AM
#1
Heel & Toe
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zo6 Rocker Arm mix up
My boss just bought a low mileage 07 z06-12k mikes. Had a little valve train noise in it so we pulled a valve cover to look at it. #5 had the rocker arms swapped.
This car was bought from a friend and he never mentioned the noise-
. We checked the service records through GM and it has never had any warranty work of any kind performed on it.
What are the odds of that happening?
This car was bought from a friend and he never mentioned the noise-
. We checked the service records through GM and it has never had any warranty work of any kind performed on it.What are the odds of that happening?
03-16-2012, 02:31 PM
#2
Burning Brakes
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My boss just bought a low mileage 07 z06-12k mikes. Had a little valve train noise in it so we pulled a valve cover to look at it. #5 had the rocker arms swapped.
This car was bought from a friend and he never mentioned the noise-. We checked the service records through GM and it has never had any warranty work of any kind performed on it.
What are the odds of that happening?
This car was bought from a friend and he never mentioned the noise-
. We checked the service records through GM and it has never had any warranty work of any kind performed on it.What are the odds of that happening?
03-16-2012, 02:40 PM
#3
Heel & Toe
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The original owner is a friend and did absolutely nothing to the car. Mechanically he is an idiot. All the bolts on the motor still have all the factory paint markings on them.
Basically this car came from the factory with the rocker arms swapped on #5.Intake on exhaust and vice versa. I'm surprised it never broke one of them. They were only touching about 1/2 the valve tip.
Basically this car came from the factory with the rocker arms swapped on #5.Intake on exhaust and vice versa. I'm surprised it never broke one of them. They were only touching about 1/2 the valve tip.
03-16-2012, 06:58 PM
#4
Burning Brakes
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It just sounds like an assembly error. Might consider getting another pair of in. & ex. rockers as after 12k they will have a wear pattern possibly where they have been riding on the valve tip edges.
