Valves not closing

[95AWD_TSI_TALON]

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BUT the machine shop told them that IT WAS THE LIFTERS.

The lifters are completly removed from this situation and you can see the difference. I would change that exhaust valve on the right. You can even see because of the "extended tip" (above the keepers) that it even causes the cam to open that valve more then the other. If your machine shop is stating it is the lifters....I would not return to them
Matt

 

[assault187]

Thanks for the Input fella's! It is appreciated.

 

[GVR4592]

The lifters are completly removed from this situation and you can see the difference. I would change that exhaust valve on the right. You can even see because of the "extended tip" (above the keepers) that it even causes the cam to open that valve more then the other. If your machine shop is stating it is the lifters....I would not return to them
Matt

You may be correct, but it would be pure luck. The "extended tip" you're referring too may not be extended. The valve stem on the left may be just ground down a lot farther so the stem on the right appears to be extended. Without measuring the actual installed height of the valve, there is no way to tell if it's sticking up too far. For all we know the machinist may have removed a lot of material from the face of the valve on the left, and ground the stem down to get the required installed height, making it appear that the valve on the right is longer. I'm not saying that you're wrong, I'm just saying that the reasoning you used to came to your conclusion is flawed.

 

[Bender]

Or, the keepers aren't in their groove properly on one of the valves.

 

[95AWD_TSI_TALON]

You may be correct, but it would be pure luck. The "extended tip" you're referring too may not be extended. The valve stem on the left may be just ground down a lot farther so the stem on the right appears to be extended. Without measuring the actual installed height of the valve, there is no way to tell if it's sticking up too far. For all we know the machinist may have removed a lot of material from the face of the valve on the left, and ground the stem down to get the required installed height, making it appear that the valve on the right is longer. I'm not saying that you're wrong, I'm just saying that the reasoning you used to came to your conclusion is flawed.

I have never seen that much "material" above the keepers, to be machined down, in a 4g63 application.
Matt