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1993 5.0 timing help

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Old Jul 14, 2019 | 02:25 PM
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1993 5.0 timing help

Hey guys, I’ve got a 1993 ford bronco that has a 302, 5.0 in it and it’s fresh built It’s got a couple extra things done to it but nothing overboard. I stabbed the distributor and had it set to 1degree past top dead center installed motor fired it up and was a little sluggish after a few times running the brake in so I advanced timing a bit and ran better still a little stuttering around 1200 rpm but I ran out of room advancing so I jumped the holes and guessed at where Distributor should be but now it won’t fire. I went to pull the #1 plug but can’t get a socket on it due to the shorty headers I put on. So only verification I can get is the harmonic balancer timing settings. The rotor is currently pointed at #1 plug and here’s a pic of timing marks, any ideas?
 
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Old Jul 14, 2019 | 03:46 PM
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Your base timing is way off.



There are timing marks on the factory balancer. That slot is not indicating TDC.
 
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Old Jul 14, 2019 | 04:43 PM
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Well I looked at my balancer better and it look like it’s 180 out. So I need to pull the distributor and re adjust, any advise? Is that yellow paint or crayon should I do that? Do I like up on circle or the flat edge?
 
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Old Jul 15, 2019 | 07:04 AM
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Originally Posted by dusty78
Well I looked at my balancer better and it look like it’s 180 out. So I need to pull the distributor and re adjust, any advise?
Setting the timing

Originally Posted by dusty78
Is that yellow paint or crayon should I do that? Do I like up on circle or the flat edge?
Crayon or paint will work to highlight the numbers. Line up the desired timing mark to the flat part of the timing tab.

A photo from my buddy Sackman on another forum:

 

Last edited by ctubutis; Jul 16, 2019 at 03:25 PM. Reason: Fix quote
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Old Jul 15, 2019 | 04:11 PM
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the TFI module thats mounted on the side of the dizzy should be pointed at 4 o'clock for the most part as well.




You are aware that the spout connector must be pulled when setting the timing?




curious what mods you did to the motor
 
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Old Jul 15, 2019 | 04:17 PM
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Originally Posted by Kemicalburns
the TFI module thats mounted on the side of the dizzy should be pointed at 4 o'clock for the most part as well.
The Op's truck is a 1993 model year. The TFI/ICM is located on the driver side inner fender.
 
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Old Jul 15, 2019 | 11:03 PM
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Yeah it’s on the finder but has the flat mounting spot still on the dizzy and I just recently read about the spout wire. It has flat top race pistons h beam rods ported and polished heads bored .030 a mild rv cam Crain roller rockers and roller lifters. I was told not to mess with the cam cause the pc can’t compensate but was told a mild rv cam was ok I can’t find the paperwork to get the lift or duration
 
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Old Jul 15, 2019 | 11:05 PM
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Can I set the timing without pulling the #1plug I really don’t want to pull the headers off lol
 
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Old Jul 16, 2019 | 06:48 AM
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Since it appears the distributor is 180 out you could turn the engine over another turn then re-stab the distributor. Then follow the steps to set it in the link I posted previously.

Let's hope that "RV" cam is Speed Density friendly....the key specification is the LSA needs to be ~114. Anything less can cause issues.
 
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Old Jul 16, 2019 | 11:50 AM
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My engine guy who rebuilt it for me said he used the same cam that was in it but it was not the stock one he remembered it being just a little taller and a hair wider so figured it was a mild rv cam for pulling trailers he said it was in good shape and truck was running pretty good before so said I should be good but he didn’t have the precise numbers it was a couple years ago
 
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Old Jul 16, 2019 | 12:06 PM
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I am curious what headers you running because you should have no issues getting the spark plug out especially on the #1 cylinder. Have you established your timing marks on the damper? chalk or crayon works well to get the marks to show up.
 
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Old Jul 16, 2019 | 08:17 PM
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eBay cheapio shorty headers for a mustang
 
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Old Jul 17, 2019 | 12:25 PM
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if you ran truck shorty headers you wouldnt be dealing with the clearance issues.
 
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Old Jul 17, 2019 | 12:30 PM
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Unfortunately I’m learning that lesson the hard way
 
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Old Jul 17, 2019 | 12:31 PM
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fresh built 302 so pretty
That’s the best picture I have of them
 
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