Tip: timing with MSD unit
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Lead Driver
Joined: Mar 2008
Posts: 7,177
Likes: 377
From: Near Los Angeles
Tip: timing with MSD unit
Hey guys--
If you've been having trouble setting the timing when you have an MSD unit installed, I learned a tip.
First, If you have a high energy system, and you want to use the old style timing light be prepared for a shock! I tasted the fillings in my teeth! I now wear rubber gloves and stand on a peice of wood, and sometimes the light still dances around.
Use a plain inductive light, not a digital read out or dial back type, and hook up to separate 12v source. Place the clamp as far from other wires as possible, usually right at the plug cap.
If you've been having trouble setting the timing when you have an MSD unit installed, I learned a tip.
First, If you have a high energy system, and you want to use the old style timing light be prepared for a shock! I tasted the fillings in my teeth! I now wear rubber gloves and stand on a peice of wood, and sometimes the light still dances around.
Use a plain inductive light, not a digital read out or dial back type, and hook up to separate 12v source. Place the clamp as far from other wires as possible, usually right at the plug cap.
Thread Starter
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Lead Driver
Joined: Mar 2008
Posts: 7,177
Likes: 377
From: Near Los Angeles
Let me tell you: I have a MSD street blaster TFI coil. It bit me 4 times before I could put down the light, and the fourth time I tasted the fillings in my teeth!
Now I stand on a piece of wood, and wear rubber gloves.
Even though I hooked the light up to another car battery, and used an induction gun, with the clamp right up next to the plug, the signal is still dancing all around the v. dampner!
I know I have to go back to the insert type gun, but it scares the ... out of me!
Now I stand on a piece of wood, and wear rubber gloves.
Even though I hooked the light up to another car battery, and used an induction gun, with the clamp right up next to the plug, the signal is still dancing all around the v. dampner!
I know I have to go back to the insert type gun, but it scares the ... out of me!
Cranky Old Guy
Joined: Mar 2008
Posts: 3,562
Likes: 6
From: Raphine, Virginia
Makes sense. Guy on another forum installed one of those new FAST EFI throttle bodies and I believe it was hooked up to the same power source and the MSD played havoc with the computer till he figured it out.
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