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Old 06-03-2017, 09:53 PM
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Radical Cam Timing Problems

Hello,

i have a truck with an unknown cam in it. also i don't have a timing tab installed. I'm having problems with a hot start. I'm pretty sure that the timing is really advanced in order for the engine to run smooth.

the problem occurs after its good and hot. then the starter will crank like the battery is dead, then it frees up and it'll crank it enough to start after a few hard cranks. if i retard the timing a little it will crank just fine when its hot. but it needs to be advanced to run the best. i have it set a a happy medium to make it start just OK when its hot. but its not running at it true potential.

Does anyone have any suggestions on how to remedy this problem? is there a device that can interrupt the power to the distributor for a quick second while cranking? any ideas are welcome.

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Old 06-03-2017, 10:03 PM
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Sure, there's a device.
It's called a heavy duty pole or toggle switch.

http://www.fastronixsolutions.com/Sw...20switches.htm
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Old 06-03-2017, 11:10 PM
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The ignition cutout works great. A more expensive cure is a pro stock BB starter. My engine cranks over fast under all conditions
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Old 06-04-2017, 05:29 AM
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Make sure your mechanical advance is not stuck, causing your hot start issue.
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Old 06-04-2017, 11:15 AM
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What I do to help to not have so much strain on my starter while cranking my engine over since I have my initial timing in the high teens is I run a 12 volt wire straight from the battery with an inline fuse to a toggle switch then a wire from the toggle switch to be my 12 volt source at the distributor and I will turn the engine over several seconds and then flip up the toggle switch to on which then gives my distributor power then it fires right up without putting a heavy load on my starter and I have no kickback problems either. I also would recommend a mini gear reduction starter if you can afford one as I have excellent results with them and they have a lot easier time turning over the engine then the old big size starters.
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Old 06-04-2017, 11:34 AM
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I don't know the link but hopefully someone will chime in and give the link but you need to get your timing situation under control and fixed before you end up causing damage to your motor.You want to verify that you TDC mark on your balancer is correct and that it also lines up properly with your timing tab and if you don't know how to check timing etc then one look it up in a google search or if you know someone who does ask them to show you how to do it. Timing is very critical and guessing it is not very good especially when your wanting to get your engine to run the best. Even if you think it runs good at the most advance part it still might be too much as you don't want to much or you can get pre ignition and pinging going on and the sound of a can full of marbles is not good.

Also you can get a good timing light from an auto store for about 40 bucks and work more then good enough and you don't have to have a fancy $300 dollar timing light like a garage one bragged to me about and when I got my truck home I checked it with my $40 light and it was as dead on as his fancy MSD luxury light lol.
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Old 06-04-2017, 12:54 PM
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Quote:
Originally Posted by eric32 View Post
I don't know the link but hopefully someone will chime in and give the link but you need to get your timing situation under control and fixed before you end up causing damage to your motor.You want to verify that you TDC mark on your balancer is correct and that it also lines up properly with your timing tab
http://www.crankshaftcoalition.com/w...op_dead_center
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