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offset key fitment.....
Posted: Mon Mar 24, 2014 1:22 pm
by turbochargedstu
im having a mind fart.
im fitting a 2 degree offset key to the camshaft as i have 112 degrees and need 110. do i fit it with the offset to turn the cam anticlockwise or clockwise.
thanks.
stu
Re: offset key fitment.....
Posted: Mon Mar 24, 2014 1:52 pm
by CooperTune
I screw this up all the time may have something to do with birthdays. I even drew a picture on my work bench and got that wrong. That's the reason I recheck after installing the key. Off the top of my head without the aid of my corrected picture at work you was to advance the cam so install to rotate the cam clockwise. If using a timing chain consider installing a 3 or 4 degree key as chain stretch will retard it in short order. Steve (CTR)
Re: offset key fitment.....
Posted: Mon Mar 24, 2014 3:38 pm
by turbochargedstu
surely, if my calculations add up to 112, and the cam is 110, i need to retard it?
stu
Re: offset key fitment.....
Posted: Mon Mar 24, 2014 3:53 pm
by Frogeye61
If you are referring to - have inlet: opening 112 after and need: opening 110 after, then you need to advance the cam.
http://www.rob-beere-racing.co.uk/pictu ... ngdisc.jpg
So actually we are in agreement.
Re: offset key fitment.....
Posted: Wed Mar 26, 2014 2:00 pm
by CooperTune
frogeye, who is it you agree with? I realize your english and mine are not the same. but I am confused. Steve (CTR)
