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Timing mark jumps @ 2000rpm and above!! What-up? #354809 06/22/09 06:00 PM 06/22/09 06:00 PM
Joined: Oct 2007 Posts: 13 California 70Klassick OP member
70Klassick OP member Joined: Oct 2007 Posts: 13 California	Hello, timing mark is clear 22'int.@800rpm--- then advances smoothly to 36'@2000rpm--- then mark jumps like a beitch!! Timing chain slak is 5'-6'deg.!! Have new tune-up stuff even the coil! Why is mark jumping all over????? 5308738-dodge003.jpg (130 downloads)

Re: Timing mark jumps @ 2000rpm and above!! What-up? [Re: 70Klassick] #354810 06/22/09 07:04 PM 06/22/09 07:04 PM
Joined: Aug 2003 Posts: 12,291 Kent, Wa 340SHORTY Truck Nut
340SHORTY Truck Nut Joined: Aug 2003 Posts: 12,291 Kent, Wa	the answer is in your question... bad timing chain I am truckless..

Re: Timing mark jumps @ 2000rpm and above!! What-up? [Re: 340SHORTY] #354811 06/22/09 07:06 PM 06/22/09 07:06 PM
Joined: Feb 2007 Posts: 908 North Chicagoland N newbee69 super stock
newbee69 super stock N Joined: Feb 2007 Posts: 908 North Chicagoland	Quote: the answer is in your question... bad timing chain X2

Re: Timing mark jumps @ 2000rpm and above!! What-up? [Re: newbee69] #354812 06/22/09 09:43 PM 06/22/09 09:43 PM
Joined: Oct 2007 Posts: 13 California 70Klassick OP member
70Klassick OP member Joined: Oct 2007 Posts: 13 California	WOW 2 for 2. What is the tolerance for 440 timing chain? Double roller. I tested by turning crank to TDC-then had someone watch rotor--and I turn crank backwards. No rotor movement till 5deg.maybe 6. Thanks guys!!! 5309247-Chalresize3.jpg (137 downloads) Last edited by 70Klassick; 06/22/09 09:45 PM.

Re: Timing mark jumps @ 2000rpm and above!! What-up? [Re: 70Klassick] #354813 06/23/09 01:05 AM 06/23/09 01:05 AM
Joined: Jan 2003 Posts: 857 The Dalles, OR. D Dusted_Ya super stock
Dusted_Ya super stock D Joined: Jan 2003 Posts: 857 The Dalles, OR.	That's alot! 2degrees is the most I'll go before replacement. Is there any play in your rotor?

Re: Timing mark jumps @ 2000rpm and above!! What-up? [Re: Dusted_Ya] #354814 06/23/09 02:21 AM 06/23/09 02:21 AM
Joined: Oct 2007 Posts: 13 California 70Klassick OP member
70Klassick OP member Joined: Oct 2007 Posts: 13 California	2 degs. is all? I read somewhere that said 3-5 is good. 10&up is bad. Rotor does have play,but I don't know how much? What else could make mark jump? Pick-up coil reads 280 ohms. maybe its sending weak signal? Thanks Kurt Last edited by 70Klassick; 06/23/09 02:23 AM.

Re: Timing mark jumps @ 2000rpm and above!! What-up? [Re: 70Klassick] #354815 06/30/09 07:17 PM 06/30/09 07:17 PM
Joined: Oct 2007 Posts: 13 California 70Klassick OP member
70Klassick OP member Joined: Oct 2007 Posts: 13 California	[Edited by Moparts - Keep it clean]!! Turns out..It was the timing light!! Mark is stable if I use the dail-in advance,say 1- 38deg.for ex. If its on 0deg. mark jumps.WOW- WHO Knew. Will probably do timing chain over the winter thou. Thanks Guys and Moparts

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