 Cam Timing, Measuring |
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| F4i |
  Jul 29 2004, 06:55 PM
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#1
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914 DOG!  Group: Benefactors Posts: 482 Joined: 22-December 03 From: AB Canada Member No.: 1,460   |
Has anyone here actually measured thier cam timing? I have given it a rough go and found my results did not match the book. Intake 12 BT 42 AB Exh. 43 BB 4 AT is what the book says. I used a dial indicator on the valve itself. I may have the wrong cam. Please chime in engine builders. What actual results have people gotten?
Thanks 914 gang. (IMG:style_emoticons/default/beerchug.gif) |
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| Brett W |
Jul 29 2004, 07:38 PM
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#2
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Advanced Member Group: Members Posts: 2,859 Joined: 17-September 03 From: huntsville, al Member No.: 1,169 Region Association: None 
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What cam are you talking about? I did a cam not to long ago that went something like this:
Int opens 16deg BTDC INt closes 48deg ABDC Exh opens 52Deg BBDC Exh Closes 20 Deg ATDC |
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| F4i |
Jul 29 2004, 09:19 PM
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#3
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914 DOG! Group: Benefactors Posts: 482 Joined: 22-December 03 From: AB Canada Member No.: 1,460 |
Sorry, You guys can't read my mind. Stock cam for a 2.0 4cyl.
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| J P Stein |
Jul 29 2004, 11:18 PM
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#4
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
Heh.....you'd love setting the cams (timing) on a 9eleben motor. (IMG:style_emoticons/default/blink.gif)
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| Jake Raby |
Jul 30 2004, 07:07 AM
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#5
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Engine Surgeon Group: Members Posts: 9,398 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
Try setting them on a 4 cam Carrera engine.... took me two days last time!
I really would not worry about it with a stock cam..... |
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| F4i |
Jul 30 2004, 07:25 AM
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#6
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914 DOG! Group: Benefactors Posts: 482 Joined: 22-December 03 From: AB Canada Member No.: 1,460 |
I am not sure it's a stock cam. Thats why I am asking. Things are not lining up. Motorcycles are no piece of cake either. It runs but I cannot get an idle without too much advance. Did a quick lift measurment with the help of Mark and think I may have a carb cam. .430 at the valve. I am going to check the duration and see what I have.
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| Mark Henry |
Jul 30 2004, 08:37 AM
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#7
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
Dylan's getting .330 lift at the cam. I measured a new Web 73 and I get .320 lift
On the stock (used) cams I have I get about .275 at the cam, even less for a hydro. It does have a rivet on gear and I’ve never heard of an aftermarket cam with a rivet on. (IMG:style_emoticons/default/huh.gif) I’m at a total loss on this puppy. I’d hate to have Dylan rip out an OK cam, but things smell real fishy. (IMG:style_emoticons/default/unsure.gif) |
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