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#1
09-13-2007, 07:36 PM
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timing chain dots.
Hi all...Im swapping out my chain with a double roller, when we get #1 on TDC the cam dot is at 12 o`clock and crank is at 12 also. What cylinder would be TDC to have the cam dot at 6 and the crank at 12? The manual shows this on how to line up marks but doesnt say what cylinder is TDC.
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81 ta, w72 400ci |
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#2
09-13-2007, 07:44 PM
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#6 TDC
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Derek B. Current best: 11.97@110 1.65-60' !!! '74 ventura,  (Fired july 14/06) '74 462 4-bolt (9.5-1), SCAT, Ross, T-II w/850DP (shaker455), TH350, Conti 10'' 3800, Supercomps, Magnaflow, 3'' Pypes, 3.73's, 28x13.5-15 ET streets.1970 Beismeyer 17' flatbottom vdrive, 11.8:1 455P, ported heads, dual Qjet tunnel ram. 
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#3
09-13-2007, 07:46 PM
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With the dots at 6 and 12 cylinder #6 will be firing. I always puts the dots at 12 and 12 and install the distributor so the rotor is pointing to #1 spark plug wire.
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#4
09-13-2007, 08:00 PM
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Its the same either way because the crank turns twice while the cam turns once.
The Pontiac manuals show 6/12 in some years and 12/12 in some years. Doesnt matter. |
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#5
09-13-2007, 08:33 PM
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Cool, ty ty ty
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81 ta, w72 400ci |
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#6
09-13-2007, 08:51 PM
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If you use the cam @6 and crank @ 12, just have the rotor point to the #6 post on the cap. (180 opposite #1)
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John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! W.E.C moment "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
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