EVO All Evo Model Discussion

Cam Identification

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Old Feb 24, 2022 | 02:38 PM
  #51  
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Originally Posted by t150vej
Photos of shiny parts can be very misleading.

The marks on that one push rod is where it's tapped on the upper push rod cover.
The white lines on the rollers are a none event.
If you put new lifters in with the existing tappet guides, the new lifter bodies will look just like in about 2-3000 miles.
I'm really only conserned about the cam lobes, based on his pics.
 
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Old Feb 24, 2022 | 06:46 PM
  #52  
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Pics of tappet blocks and cam. The picture that has a red circle, I can feel a groove there out of what I assume is an oiling port.











 
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Old Feb 24, 2022 | 07:29 PM
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I maybe all wet on this.
What I have seen in the pics there isn't anything I'd be scared to run.

Pics can be deceiving. Do you have anyone to inspect the parts hands on ??
 
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Old Feb 24, 2022 | 07:46 PM
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Originally Posted by WP50
I maybe all wet on this.
What I have seen in the pics there isn't anything I'd be scared to run.

Pics can be deceiving. Do you have anyone to inspect the parts hands on ??
I have not. My only question is with the grove on the front tappet block next to that hole.
 
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Old Feb 24, 2022 | 07:49 PM
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Originally Posted by ThePaintPirate
I have not. My only question is with the grove on the front tappet block next to that hole.
If there is no corresponding mark on the lifter and I'd bet there is not I'd run it.

WP
 
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Old Feb 24, 2022 | 09:00 PM
  #56  
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Originally Posted by WP50
If there is no corresponding mark on the lifter and I'd bet there is not I'd run it.WP
Couldn't find any mark. All the marks are running lenghtwise on the lifters and I can't feel any gouging, it's all cosmetic.
 
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Old Feb 25, 2022 | 05:51 PM
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So I got all my gaskets and I'm ready to go today. Used the same size .055 shim, but a new one, that came out and I'm getting no movement at all in the new cam with the cover on and not even tightened down. So then I tried a .0475 and got the same result and I'm measuring between the thrust washer and spacer. Is there something I'm missing? I'm using the original cam bushing if that makes a difference.


 
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Old Feb 25, 2022 | 06:02 PM
  #58  
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Do you have the cam chest cover gasket on or is your measurements without the gasket?
 
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Old Feb 25, 2022 | 06:20 PM
  #59  
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Originally Posted by 98hotrodfatboy
Do you have the cam chest cover gasket on or is your measurements without the gasket?


Sometimes (often, actually) it's difficult to make the cam slide because of the exacting fit between the pinion and cam gears. Plus, the Andrews cam gears are at the very "big" end of size "red" scale. Carefully use a screwdriver to pry the cam in/out. If it doesn't move, take the shim out and try again. Then if it doesn't move relatively easy with a big flat blade screwdriver, may have to change the cam gear.

A .045 shim is thin as the make them and .050 - .001 is spec.
 
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Old Feb 25, 2022 | 07:06 PM
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Yes, gasket is in place but not "squished." Started experimenting and replaced the cam seal, and reinstalled the old cam and spacer with the same result. So for kicks, I installed the new cam with no spacer and was able to get .026 between the thrust washer and cam and the cam gear face is flush with the breather and pinion gears, where as with the spacer it was protruding a bit.




 
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