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www.ColoradoClassicBroncos.com - View topic - 302 won't fire
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 302 won't fire 
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Post 302 won't fire
Drews bronco was backfiring like crazy, so I put my hand on top of the dist to adjust the timing, and got zapped. The plug wires were cut-cracked. So off to napa and we get new plugs, wires, cap and rotor.

Put it all on, and guess what? No zoom, zoom.

Any one have any great ideas?

Anyone feel like coming over to play broncos and help out? Plenty of cold ones as payment.

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[color=#BFFF40]Greg

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Sat Jun 16, 2012 5:41 pm
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Post Re: 302 won't fire
Try a coil too.

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Rob

74 Ranger EFI351w, 4r70w, ARB 5.13 9in, ARB 5.13D44, and a bunch of other goodies. Best of all the family memories.

04 Mustang Cobra, KenneBell 2.2 feeding a lot of boost on E85. Tire shredding machine

New project: 77 Bronco Ranger, body work and more body work.

Very little left of a 72 durango tan explorer sport


Sat Jun 16, 2012 6:05 pm
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Post Re: 302 won't fire
Greg,

The ignition module was relatively new, as were the cap and rotor, and plugs.

I would guess coil or firing order.

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1977 Sport, 351w OBDII EFI motor, 4R70W auto, 4:88 gears, ARB lockers, 3.5" suspension, 33" tires.


Sat Jun 16, 2012 6:09 pm
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Post Re: 302 won't fire
We did that, put an extra one we had lying about on.... Shocked the crap out of drew too...

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Sat Jun 16, 2012 6:11 pm
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Post Re: 302 won't fire
Keep at it. The shocking means it's working - take turns holding it. popcorn

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Sat Jun 16, 2012 6:18 pm
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Post Re: 302 won't fire

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Spiritual owner of the now Zoso mobile (1974 Bronco Ranger - EFI 351W-4R70W-ARB front and rear-STC softtop- High Country hood-3 1/2" WH lift- Cross inboard rear shock mnt- Duffs bumpers- Warn 8274- 33's- Cheby disc conversion)


Sat Jun 16, 2012 8:15 pm
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Post Re: 302 won't fire
We got it!

Finally pulled the number 1 plug, found the top and pulled the cap, found number 1 on the rotor and reset the wires accordingly. Turned the key and fired her right up. Set the timing a at 10 degrees advanced, might be a bit to much but she is running better than she has in months.

Oh, and we fixed the signature "Rox Crusher" squeal too!

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Sat Jun 16, 2012 8:47 pm
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Post Re: 302 won't fire
Whew, I was thinking the ol block of wood and a hammer were coming out while I began reading this.


Wed Jun 20, 2012 10:19 pm
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Post Re: 302 won't fire
Nope, just pulled the old wrecked motor over, set the hammer and block on the fender, scared the engine into fixing itself

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Wed Jun 20, 2012 10:24 pm
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Post Re: 302 won't fire
Are you sure Drew needs a better running motor?

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1973 Bronco, 351 SEFI, Locked, discs, 35's ZF-5spd and Atlas 4spd. 235:1 Crawl Ratio. It may be ugly, but it's slow.
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Thu Jun 21, 2012 8:18 am
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Post Re: 302 won't fire
Yeah, he does. He is leaving for work at 430am, mon-fri. The squealing alt and backfiring that sounded like a 30-06 going off 15 times in the driveway was disturbing the neighbors, but more importantly, it was pissing off the queen of the household.

Yes, he needed a better running motor.

We all needed him to have a better running motor

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Thu Jun 21, 2012 8:24 am
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Post Re: 302 won't fire
Yeah, I see your point!

Rubber side down buddy!

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1973 Bronco, 351 SEFI, Locked, discs, 35's ZF-5spd and Atlas 4spd. 235:1 Crawl Ratio. It may be ugly, but it's slow.
http://www.ucora.org


Thu Jun 21, 2012 8:29 am
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Post Re: 302 won't fire
Yeah - I think he has learned that lesson pretty well - the expense of his heavy right foot has cost him pretty dearly since he earned his license in late April... starter, rear end, fluids, seals etc... not to mention fuel!

On the bright side - he is getting 12-14mpg since the tune up!

But his mother will not let him run topless this summer - and the drive home from work has been brutal so far (he gets off at 2:30p and it has been HOT!) - seems like we may be having some minor vapor lock issues. Going to try the wood clothes pin trick tonight. He is working near the Denver Zoo and we live in Highlands Ranch - cross town traffic on 100 degree days...

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Thu Jun 21, 2012 8:38 am
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Post Re: 302 won't fire
Do you want to cut the hood?

I've put hood vents like this in my '74
Image

I have some, but they are located in Monte Vista.

There are better functioning ones:
Image

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1973 Bronco, 351 SEFI, Locked, discs, 35's ZF-5spd and Atlas 4spd. 235:1 Crawl Ratio. It may be ugly, but it's slow.
http://www.ucora.org


Thu Jun 21, 2012 8:42 am
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Post Re: 302 won't fire
not a bad idea, we already have a hole in it for the air cleaner and just put a scoop on it. We need to open up the hole more I am sure.

I will suggest it to him.

Thanks

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Thu Jun 21, 2012 8:47 am
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