Do I need a cam button?
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Joined: Dec 2002
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From: Alger oh
Do I need a cam button?
I'm making my list of parts for a fresh 355 and noticed this thing called a CAM button in a Jeg's mag. I'd didn't see one when I tore down the old block. What's its purpose? Jeg's has a long style and a short style. What's up with that? I'm planning on using a 262H cam with Dart 180 heads and Edelbrock EPS intake :cheers:
Race Director
Joined: Nov 2000
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From: Waterloo ontario Canada
Re: Do I need a cam button? (ldyoung)
Normal flat tappet cams both hydraulic and solid are ground with a slight tapper on the lopes that push the cam towards the back of the block so no cam button is required.
Roller cams are ground flat and the cam tries to walk out the front of the block so a cam button is required on the end of the cam to keep the cam in the block. The button rides against the timing cover.
You do not need a button on your cam.
Roller cams are ground flat and the cam tries to walk out the front of the block so a cam button is required on the end of the cam to keep the cam in the block. The button rides against the timing cover.
You do not need a button on your cam.
Instructor
Joined: Nov 2002
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From: Irwindale Ca.
Re: Do I need a cam button? (ldyoung)
Its true you shouldnt require a cam button, but on all my engines I have the block machined behind the camgear to fit a Torrington thrust style bearing and races to prevent the cam gear from dragging against the block. Works great.. :steering: :steering:
Racer
Joined: Aug 2002
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From: Pataskala OH
Re: Do I need a cam button? (norvalwilhelm)
When I assembled my 505 I bought a edelbrock aluminum timing chain cover. My cam slid back and forth at least a half inch before installing a cam button. The one I bought was a roller bearing model and was too long to fit beind the timing cover.
I then purchased a plastic one and ground it down to fit.
I think for 5 dollars you might as well install one. Slide your cam back and forth after the timing chain is installed and you will see it has a ton of travel.
I would think exessive end play would affect your timing accuracy?
I am no expert:)
I then purchased a plastic one and ground it down to fit.
I think for 5 dollars you might as well install one. Slide your cam back and forth after the timing chain is installed and you will see it has a ton of travel.
I would think exessive end play would affect your timing accuracy?
I am no expert:)
