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Re: Ignition timing
[Re: 65dragnet]
#1028201
07/08/11 09:03 AM
07/08/11 09:03 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Put an rb engine together runs fine but can't get anymore than 30 degrees timing in it. Any ideas ? thanks 
Cant you turn it any farther... if thats the case...
pull the dist and rotate the intermediate shaft 1 or
2 teeth and reassemble
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Re: Ignition timing
[Re: Cab_Burge]
#1028203
07/08/11 05:09 PM
07/08/11 05:09 PM
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Joined: Jan 2005
Posts: 716
Indiana
65dragnet
OP
super stock
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OP
super stock
Joined: Jan 2005
Posts: 716
Indiana
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negative on the intermediate shaft that's not the problem the engine just won't take any advance past 30 degrees. Degreed cam at 106 it is a Comp 324 650 flat tappet, I know it should be 108 but thought I'd try a little advance. Surely two degrees isn't going to cause this. If I advance the timing past 30 to 36 it will choke the engine down and die. TDC and timinng mark on fluid damper are right on.  I've had to miss something this is real embarassing and is making me feel very stupid 
Last edited by 65dragnet; 07/08/11 05:11 PM.
E. Williams 65 Coronet 500 3400lbs w/d, 446, Indy EZ'S, A&A transbrake,Comp 650 lift cam, 6.50 @ 105 mph 1/8th 10.25 @ 130mph 1/4
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Re: Ignition timing
[Re: 65dragnet]
#1028204
07/08/11 05:38 PM
07/08/11 05:38 PM
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Joined: Oct 2003
Posts: 7,506
Az
Crizila
master
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master
Joined: Oct 2003
Posts: 7,506
Az
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Assume you are setting the total with all the mechanical in ( at or around 3K). Only other issues are the timing marks are off or the cam isn't in properly. Might want to check TDC on the the dampener with a positive stop in the #1 hole first - pull all the plugs, DISCONNECT the battery, and rotate the engine by hand - gently.
Fastest 300
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Re: Ignition timing
[Re: 65dragnet]
#1028206
07/08/11 05:47 PM
07/08/11 05:47 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Thanks did that already that's how I know marks are correct, I don't want pull front cover again but it looks like it's going to happen. Ran this combo before and took it apart for it's 6 year freshen up and decided to mess with cam centerline. What a dummy ! I'm frustrated and this heat is killing my old butt LOL
Are you using a MSD ignition... the dist wires could
be backwards
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Re: Ignition timing
[Re: 65dragnet]
#1028208
07/08/11 06:17 PM
07/08/11 06:17 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
yes it's a 6 al but I think the plug in is idiot proof but I'll check thanks Mike 
2 degrees of cam timing wouldnt effect the spark timing
I'm just throwing out ideas... if you didnt change any
of the ignition stuff it SHOULD be fine
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Re: Ignition timing
[Re: 65dragnet]
#1028212
07/08/11 09:08 PM
07/08/11 09:08 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Randy I advanced it with the three keyed gear, no bushing
And you did verify it with a degree wheel... correct
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Re: Ignition timing
[Re: 65dragnet]
#1028214
07/08/11 11:46 PM
07/08/11 11:46 PM
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Joined: Aug 2003
Posts: 43,215
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,215
Bend,OR USA
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Quote:
Randy I advanced it with the three keyed gear, no bushing
If you DID NOT use a degree wheel and verify the actual cam timing and lobe seperation angles you will never know what the cam is in at  I have seen many crankshaft and cam gears with multiple keyways be off as many as 12 degrees  I just went thruogh this with a high doller nine key way timing set that the 6 degree advance keyway was actually 2 degrees advanced on the cam, not six You have to check everything to make sure it is correct  I had a very similar expereince with the first roller cam I installed years ago, the cam pin was installed 8 degrees retarted  It ran fine on the trailer, it was a 392 Hemi V drive boat motor, rev and sounded like it was a SB Chevy, in the water it wouldn't fall out of a tree if you pushed it with a D8 CAT , horrible experience  Let us know what you find
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Ignition timing
[Re: 65dragnet]
#1028218
07/10/11 08:11 AM
07/10/11 08:11 AM
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Joined: Oct 2005
Posts: 976
ontario canada
mac56
super stock
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super stock
Joined: Oct 2005
Posts: 976
ontario canada
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Quote:
Well pulled it back apart guys and checked all events of the cam with a degree wheel, it was absolutely perfect. Checked distributor wires checked rotor , this a pro billet MSD and is locked at full advance, found no issues. Checked balancer and it was within 1 degree at absolute TDC. Cam was actually installed straight up and came in at 109 we left everything as was and buttoned it back up.Fired it up and it timed at 36 degrees , wow what a PITA. I know I'm not crazy but more of this crap and I'll be there. Sorry guys don't know what happened. I have two witnesses that experienced this and they are stunned also. Simply un friggen believable. Thanks for all the input !
Glad to hear it is ok now and if your like most of us it will keep you awake a few nights wondering what the friday was going on. 
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Murphy really likes to mess with us racers 
