cam timing fun (pics added)
#1
non factory cam timing fun (pics added)
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Last edited by Bigfoot928; 05-23-2020 at 07:23 PM.
#2
Former Vendor
Getting the Simard cams installed, and figuring out the cam timing. They don't have the little nubs on the cams that you line up with the chain links to get the intake and exhaust cams timed properly. I'm glad that when Mike was designing them I talked him into include wrench boses on them so you could turn them and get them dialed in. getting out the dial indicator. no pun intended.
#3
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Last edited by Bigfoot928; 05-23-2020 at 07:23 PM.
#4
Former Vendor
I can get you some references of the chain location marks to the lobes, if you need that.
Taking the cams in and out to get the chains on the right tooth just isn't that much fun.
#5
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Last edited by Bigfoot928; 05-23-2020 at 07:23 PM.
#6
Sterling, swing over and borrow my cam lobe tools. Just return them when you're done. That will get you close enough.
#7
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Last edited by Bigfoot928; 05-23-2020 at 07:24 PM.
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#8
Former Vendor
You should try it the 968 chain tensioner, and 2 of them was a royal pain. It's enough to make the Pope drop F Bombs. I used a time card at one point to see how much time I spent on cam timing when we were doing the 968 variocam on the 928. I had over 130 hours on cam timing alone.
The problem with the Porsche Factory 968 method of setting the cam timing is that it only works when the tensioners are almost brand new. Once the tensioners wear, there is too much leakage past the piston to be able to control the tensioner position...the cam timing becomes a continually changing thing. About 75% of the 968s I've seen that have had anyone mess with the cam timing are incorrectly set.
#9
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Last edited by Bigfoot928; 05-23-2020 at 07:24 PM.
#10
Former Vendor
This should get you close:
BTW, I have no idea why some of the pictures copied 90 degree off....
BTW, I have no idea why some of the pictures copied 90 degree off....
#11
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Last edited by Bigfoot928; 05-08-2020 at 12:18 PM.
#12
Rennlist Member
Sterling, that 928 MS cam-tool is definitely a top-ten tool for me.
Looks like it's working perfect for you, too.
Looks like it's working perfect for you, too.
#13
Former Vendor
Getting the Simard cams installed, and figuring out the cam timing. They don't have the little nubs on the cams that you line up with the chain links to get the intake and exhaust cams timed properly. I'm glad that when Mike was designing them I talked him into include wrench boses on them so you could turn them and get them dialed in. getting out the dial indicator. no pun intended.
#14
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Last edited by Bigfoot928; 05-08-2020 at 12:18 PM.