Valve lash, With WEBCAM #494 |
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Valve lash, With WEBCAM #494 |
jeffdon |
Mar 13 2010, 06:09 PM
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#1
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Senior Member Group: Members Posts: 1,094 Joined: 24-October 06 From: oakland, ca Member No.: 7,087 Region Association: None |
Ran the 2056 on the stand for a last time to get the oil warm, and do the initial change, and get her ready for installation. Did another valve check. Which got me to thinking.
I am setting it to the spec that came with the cam, .006 for both exhaust and intake. Lift (.465) and duration (280 deg.) are the same for both valves. Question is, if exhaust valves expand more due to heat than intake, why does webcam recommend .006 for both? Why not .006 and .008 as is standard? It SEEMS to be running pretty well, but I know i have a good deal of fooling around with jets and such once its on the road and i can test her under load. At one point at about 3500 rpm it started firing back through No 4., but that was right about the time i was running out of gas in my temp. tank. I shut it off, and got a big pop and some flame out the tail pipe. I would really like address/double check anything now, as its way easier accesing things on the stands. |
Cap'n Krusty |
Mar 16 2010, 09:07 AM
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#2
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
I confess to knowing that loose valve settings also contribute to a HUGE reduction in HCs when done in conjunction with an emissions test. Not that I would ever resort to that nefarious strategy to get one of my customers' 1976 or newer Type 1 cabbie or 914 through a smog test............
The Cap'n |
VaccaRabite |
Mar 16 2010, 09:24 AM
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#3
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En Garde! Group: Admin Posts: 13,456 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region |
I confess to knowing that loose valve settings also contribute to a HUGE reduction in HCs when done in conjunction with an emissions test. Not that I would ever resort to that nefarious strategy to get one of my customers' 1976 or newer Type 1 cabbie or 914 through a smog test............ The Cap'n This made me LOL for real. (IMG:style_emoticons/default/smile.gif) Zach |
TheCabinetmaker |
Mar 16 2010, 09:27 AM
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#4
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I drive my car everyday Group: Members Posts: 8,301 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
I confess to knowing that loose valve settings also contribute to a HUGE reduction in HCs when done in conjunction with an emissions test. Not that I would ever resort to that nefarious strategy to get one of my customers' 1976 or newer Type 1 cabbie or 914 through a smog test............ The Cap'n This made me LOL for real. (IMG:style_emoticons/default/smile.gif) Zach Gotta good chuckle here too. (IMG:style_emoticons/default/biggrin.gif) |
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