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Old 11-14-2010, 03:00 PM
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Wolfe1013 Wolfe1013 is offline
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Default '82 CHP Mustang 5.0 HO firing order

I'm under the hood after replacing the fan clutch and fighting to get the new belt on - Belt 1, Greg 0 - will try again later, and was about to change the distributor cap, rotor, wires and plugs.

I got out both my Haynes and Chilton manuals and noticed something peculiar. The firing order as it is on the car right now matches what the books show to be NON-HO.

Can someone specify the difference and what would happen if I used the HO firing order when putting the new parts on?

History - records in the file on the car show this motor was rebuilt .040 over in 1993.

The disitributor isn't in there like photos show, either. The vacuum diaphragm is turned more toward 5:00 than 6:00 as you face the motor from the front. Sorry, I'm not a mechanic. Would that be advanced timing or retarded if you rotate the distributor counterclockwise?

Since the motor is no longer original, I'm thinking I should put all the new parts on matching the way she sits right now.

If anyone is willing to talk for a few moments, PM me your number and I'll call you from a 901 area code on my cell.

Thanks,

Greg
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1982 CHP Mustang Coupe, Unit # E870567 **SOLD to chp1982**
1988 Mustang 5.0 LX, Unit # HP 43 (Wyoming Highway Patrol)
1991 Ford Crown Victoria S (Brentwood, CA Police Dept/Cinema Vehicle Svcs)
1992 Chevrolet Camaro RS B4C, Unit # 360 (Colorado State Patrol) **SOLD BACK TO CSP**
1996 Bronco XL 5.8L (California Highway Patrol)
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Old 11-14-2010, 05:21 PM
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Greg,

The '82 is non-HO.

My shop manual shows the firing order as 15426378.

Clockwise advance, counter retard.

Call me if you need more.
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'82 SSP (Marketing Order)
'83 Colorado State Patrol #202
'83 Texas DPS
'85 Florida Highway Patrol #1422
'93 Florida Highway Patrol #1187
'93 Florida Highway Patrol #1363
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Old 11-14-2010, 05:43 PM
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Then why does the air cleaner lid say "5.0 Liter H.O." on every '82 CHP I've seen, including mine?

Thanks, I matched it up the way it was. Got some other work to do, so I'm not able to crank it yet.

Cap, rotor, plugs, wires, fan clutch and almost the belt. Busy day.

Time for a short drive before dark in the B4C.

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1982 CHP Mustang Coupe, Unit # E870567 **SOLD to chp1982**
1988 Mustang 5.0 LX, Unit # HP 43 (Wyoming Highway Patrol)
1991 Ford Crown Victoria S (Brentwood, CA Police Dept/Cinema Vehicle Svcs)
1992 Chevrolet Camaro RS B4C, Unit # 360 (Colorado State Patrol) **SOLD BACK TO CSP**
1996 Bronco XL 5.8L (California Highway Patrol)
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Old 11-14-2010, 06:09 PM
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Ford marketing?

The shop manual only refers to the 351 as HO (only available for Police and Canada).

Here's a good link: http://www.302w.com/Firing-Order.aspx
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'82 SSP (Marketing Order)
'83 Colorado State Patrol #202
'83 Texas DPS
'85 Florida Highway Patrol #1422
'93 Florida Highway Patrol #1187
'93 Florida Highway Patrol #1363
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Old 11-15-2010, 01:04 AM
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Thanks, Mike. Another "myth" dispelled about the '82 CHPs. I'm glad I looked and found that and didn't just take everything loose.
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1982 CHP Mustang Coupe, Unit # E870567 **SOLD to chp1982**
1988 Mustang 5.0 LX, Unit # HP 43 (Wyoming Highway Patrol)
1991 Ford Crown Victoria S (Brentwood, CA Police Dept/Cinema Vehicle Svcs)
1992 Chevrolet Camaro RS B4C, Unit # 360 (Colorado State Patrol) **SOLD BACK TO CSP**
1996 Bronco XL 5.8L (California Highway Patrol)
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Old 11-15-2010, 01:18 AM
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Quote:
Originally Posted by Wolfe1013 View Post
Thanks, Mike. Another "myth" dispelled about the '82 CHPs. I'm glad I looked and found that and didn't just take everything loose.
No prob (and I was messing with you a little). Everything I've ever seen refers to the 5.0 from '82 on as HO, it's just the firing order is different on the early cars? I will check the shop manuals for the '83 and '85 and see what they say. I know it changed at some point.
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'82 SSP (Marketing Order)
'83 Colorado State Patrol #202
'83 Texas DPS
'85 Florida Highway Patrol #1422
'93 Florida Highway Patrol #1187
'93 Florida Highway Patrol #1363
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