Locked Dizzy and starting ?
#2372586
09/18/17 10:13 AM
09/18/17 10:13 AM
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Joined: Oct 2005
Posts: 1,927 Seaford, Va
Kindafast
OP
top fuel
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OP
top fuel
Joined: Oct 2005
Posts: 1,927
Seaford, Va
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Hey Guys it's been a little while since I posted on here but here it goes. My small block 422 CI engine has always started and run fine at 34* timing locked down dizzy. I have noticed lately that it seemed to buck when trying to start like it had too much timing. Well long story short , At the track this weekend it started okay for the first pass but when I got back to the pits it was really hard to start. I borrowed a battery "too small" but it started again. Won my first round but when I got back to my pit it would not start. I charged my original battery and replaced the starter with a hi torque unit. By that time I had missed the call for second round so I finally got the car started and loaded it up. Brought it home and the next day I charged the battery with my big charger and it started but still bucked like the timing was too high. I backed the timing down to 20* and checked the wiring and it starts right up and seems to run fine. I am sure that is not enough timing though. Any ideas what I should look into to find out what happened ? I am kind of lost on this one ..
6.50 @105.26
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Re: Locked Dizzy and starting ?
[Re: Kindafast]
#2372593
09/18/17 10:41 AM
09/18/17 10:41 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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I'm thinking you didnt check the timing when it was hard starting and I believe it moved on you over time.. put it back to 34* and give it a try and go from there.. the timing chain could have stretched some also
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Re: Locked Dizzy and starting ?
[Re: Kindafast]
#2372595
09/18/17 10:43 AM
09/18/17 10:43 AM
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crabman173
Unregistered
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crabman173
Unregistered
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With any high compression engine or one that has the timing locked you wire it so you can spin the engine THEN hit the ignition "on" separately That is how all race cars should be wired--this will solve most issues with hard starting
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Re: Locked Dizzy and starting ?
[Re: ]
#2372599
09/18/17 10:49 AM
09/18/17 10:49 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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With any high compression engine or one that has the timing locked you wire it so you can spin the engine THEN hit the ignition "on" separately That is how all race cars should be wired--this will solve most issues with hard starting This is how I had my car set up.. started great all the time(that was at 38*)
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Re: Locked Dizzy and starting ?
[Re: Kindafast]
#2372601
09/18/17 10:54 AM
09/18/17 10:54 AM
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Joined: Oct 2005
Posts: 1,927 Seaford, Va
Kindafast
OP
top fuel
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OP
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Joined: Oct 2005
Posts: 1,927
Seaford, Va
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Crabman 173 Thanks that is a good idea. I never really had a problem until lately that is what makes me go ???? My car isn't a high compression engine and it still has the factory wiring Street Car !! But I can give that a try and see what happens. As far as tuning my car with a locked out distributor I have been doing it for years and never had a problem.
6.50 @105.26
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Re: Locked Dizzy and starting ?
[Re: Kindafast]
#2372608
09/18/17 11:12 AM
09/18/17 11:12 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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Are you running a roller cam.. if so the intermediate shaft could be worn a fair amount which causes slop and timing issues
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Re: Locked Dizzy and starting ?
[Re: MR_P_BODY]
#2372635
09/18/17 11:46 AM
09/18/17 11:46 AM
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Joined: Oct 2005
Posts: 1,927 Seaford, Va
Kindafast
OP
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OP
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Joined: Oct 2005
Posts: 1,927
Seaford, Va
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Are you running a roller cam.. if so the intermediate shaft could be worn a fair amount which causes slop and timing issues Hey thanks everybody for the ideas , I was thinking about the bronze gear also . It may be worn a little because I do run a roller cam and it has been in there for quite a while.
6.50 @105.26
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Re: Locked Dizzy and starting ?
[Re: Kindafast]
#2372654
09/18/17 12:15 PM
09/18/17 12:15 PM
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Joined: Oct 2005
Posts: 1,927 Seaford, Va
Kindafast
OP
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OP
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Joined: Oct 2005
Posts: 1,927
Seaford, Va
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Thanks again for the info and advice. Damn I hate it when you over think everything. The Optima Battery just didn't have the cranking amperage anymore. I took the battery out of my Motor Home 825 CCA and put it in the car . Set my distributor to 34* and it starts fine again. Damn battery cost me a ton of worry. Oh well at least I know what it is..
6.50 @105.26
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Re: Locked Dizzy and starting ?
[Re: Kindafast]
#2372661
09/18/17 12:28 PM
09/18/17 12:28 PM
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Joined: Jul 2004
Posts: 19,317 State of confusion
Thumperdart
I Live Here
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I Live Here
Joined: Jul 2004
Posts: 19,317
State of confusion
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My 470 BB starts fine at 12.1.1 comp locked at 36* unless the batteries get low from sitting a few weeks then a boost charge and it's fine and has been locked longer than I can remember.......... Starts the same weather I spin it first then hit the ign. or just crank it and I guess I'm not a good tuner since my dumb azz locked it out..........
Last edited by Thumperdart; 09/18/17 12:31 PM.
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: Locked Dizzy and starting ?
[Re: Thumperdart]
#2372675
09/18/17 12:59 PM
09/18/17 12:59 PM
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Joined: Oct 2005
Posts: 1,927 Seaford, Va
Kindafast
OP
top fuel
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OP
top fuel
Joined: Oct 2005
Posts: 1,927
Seaford, Va
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My 470 BB starts fine at 12.1.1 comp locked at 36* unless the batteries get low from sitting a few weeks then a boost charge and it's fine and has been locked longer than I can remember.......... Starts the same weather I spin it first then hit the ign. or just crank it and I guess I'm not a good tuner since my dumb azz locked it out.......... LOL Me too !!!!
6.50 @105.26
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Re: Locked Dizzy and starting ?
[Re: Paul_Fancsali]
#2372679
09/18/17 01:01 PM
09/18/17 01:01 PM
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Joined: Oct 2005
Posts: 1,927 Seaford, Va
Kindafast
OP
top fuel
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OP
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Joined: Oct 2005
Posts: 1,927
Seaford, Va
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What compression is the engine?I ran into a similar issue but it was ground problem Weak ass Optima Battery.. Cost me a few more passes at the track..
6.50 @105.26
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Re: Locked Dizzy and starting ?
[Re: Kindafast]
#2372710
09/18/17 01:51 PM
09/18/17 01:51 PM
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Joined: Oct 2007
Posts: 4,206 New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,206
New York
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How recent is centrifugal advance, in other words how far back do you need to go to buy a car with fixed advance? Over 100 years.
Boffin Emeritus
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Re: Locked Dizzy and starting ?
[Re: ]
#2372756
09/18/17 03:06 PM
09/18/17 03:06 PM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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With any high compression engine or one that has the timing locked you wire it so you can spin the engine THEN hit the ignition "on" separately That is how all race cars should be wired--this will solve most issues with hard starting We had to do this on the stock car (only 9-1 CR) as it was cranky when hot. Battery was in the trunk tho but the cables were 1/0 or 2/0 & a regular starter.
live every 24 hour block of time like it's your last day on earth
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