Valve Adjustment

[agentorange]

At what mileage should the valves be adj.?

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[IZZy]

... on what car? what year? what motor? modular? pushrod? chevy? ford?

 

[agentorange]

sorry 04 cobra

 

[IZZy]

No valve adjustment necessary

 

[nytebyte]

Aren't valve adjustments only required on cars that use a timing belt (like a '99 Cobra).
Since the 03 and 04 Cobra's use a chain, there is no stretch or fatigue that you get with a belt, so no need to adjust the valves.

At least that's what I thought.

 

[Egreen99]

99 cobras use chains as well as does any modular motor dating back to the 93 4.6L dohc motor, believe the 91 4.6L 2v was also chain. teh 5.0s were chain as well can't remember any V-8 that used a belt in a long time not Ford atleast.

 

[rdsnake]

Aren't valve adjustments only required on cars that use a timing belt (like a '99 Cobra).
Since the 03 and 04 Cobra's use a chain, there is no stretch or fatigue that you get with a belt, so no need to adjust the valves.

At least that's what I thought.

Did that just happen...........

 

[nytebyte]

I honestly thought they had belts.
Oh well, I'm a retard.

 

[agentorange]

thanks i just p/u a 04 with 80k on it and wasnt sure thanks for the help guys!

 

[ShelbyGuy]

A valve adjustment is meant to put the space between the valve stem and the cam follower [rocker arm] in spec. Most engines have a hydraulic way of taking up the lash by using the oil pressure and a hydraulic lifter. With solid lifters, you either need to shim the lash adjuster, put a lash cap on the valve stem, or use some sort of adjustable rocker. It doesn't have anything to do with the timing of the valvetrain.

 

[01Cobra]

Brings me back to the days of my 93 SHO. Valve shim adjustments. Ack.