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BoxFlyer says I need to use a copper casket, I don't have that size but do have it in aluminum since it's the same as the oil drain. What is the reason for copper only? I wanted to check my cam timing this weekend before heading out on a trip.
I was wondering why?
That thickness makes no difference to that spring tension in the cam chain tensioner.
One of the unique things about copper is that it "work hardens". You can see it do this if you've ever tried to bend a copper wire and then try to bend it back. Because of the work hardening effect, it actually gets stronger where you bent it so it will not bend back in the same place but somewhere nearby where its softer. This would mean that a hard washer wouldn't conform to surface irregularities as well and may not seal.
Torquing down a copper washer and leaving it there can have this effect also. Annealing (heating to red hot and allowing it to cool) will reverse the effect so that the washer is soft again and can seal better. It can be done over and over again.
I don’t think the thickness effects the spring either. ...
Well, it does. You can prove it to yourself with a thought experiment. If the washer were a half-inch thick, would the tip of the cam chain tensioner be in the right place to touch the cam chain?
So, the real question is, "Does the aluminum washer have a different thickness than the copper, after torquing?" And I think the answer is, "probably, but the difference will be so small that it won't affect the operation of the cam chain tensioner."
See, that's the problem with making bold statements on the internet, in the presence of nit-picking engineers!
Cap
BoxFlyer says I need to use a copper casket, I don't have that size but do have it in aluminum since it's the same as the oil drain. What is the reason for copper only? I wanted to check my cam timing this weekend before heading out on a trip.
... One tip is to be sure you have a 16mm torque adapter https://www.mactools.com/en-us/Wren...9c05/3-8-Drive-Metric-Box-End-Torque-Adapters - my 16mm crowfoot didn't work, not enough reach...
I also spent $30 for a Snapon 16mm torque adapter... and then Boxflyer told me that he uses a 5/8” torque adapter which is the same as 16mm .... much cheaper. D’oh
Glad to hear it went well. I find that the most confusing step is setting the cam position sensor. There’s a line and a notch that must be aligned. But not the center of the line to the center of the notch. Very strange. I suspect it doesn’t make a difference as long as you’re close, and consistent from left to right cylinders. How did you do it?
...How do you line it up if not to center?