Cam thrust washer - Team Camaro Tech
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post #1 of 5 (permalink) Old Dec 14th, 04, 08:39 PM Thread Starter
 
Join Date: Dec 2004
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454 9+ compression street use 6500 or less with hydraulic cam .540/.540 296/306 114 lobe sep, HD springs, cast flat pistons, stock rods/stroke, stock guide and rockers.

Do I need a cam thrust washer for this or just put the cam gear on and degree it properly? End play is fine.
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post #2 of 5 (permalink) Old Dec 15th, 04, 04:36 AM
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Jim
 
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With a flat tappet cam, the slight angle cut into the lobes to rotate the lifters will keep the cam back where it belongs. Roller cams need a thrust washer or button





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post #3 of 5 (permalink) Old Dec 15th, 04, 06:24 AM Thread Starter
 
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Thanks Jim. That's the information I had but two people trying to help were telling me otherwise. Certainly makes things simpler for me. Have a great holiday.
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post #4 of 5 (permalink) Old Dec 15th, 04, 07:43 AM
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Bruce
 
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I put a button my BBC with a new Comp Cams XE294H cam and from what I've been told by the tech's at Comp Cams, this is why a lifter broke and went through the side of the block.
They also made the same comment Jim made, so I've told myself that the button is in the trash.....

69 Camaro, 496, 10.34 @ 134.77 mph.
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post #5 of 5 (permalink) Old Dec 15th, 04, 10:28 AM
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Matt
 
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A thrust button and thrust washer are different things. You don't want a thrust button with a non roller cam. But you can put a thrust bearing behind the cam gear on a non roller cam, but you also have to have the cam gear with the recess machined in. This will save wear on the front surface of the cam journal.

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