Compression questions - Ford Powerstroke Diesel Forum
 
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post #1 of 8 Old 06-01-2013, 04:41 PM Thread Starter
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Compression questions

What is the normal range for compression test on a '94 7.3?

And are the blocks the same in a '94 and a '99?


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post #2 of 8 Old 06-01-2013, 05:39 PM
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I was told the ford spec is between 400-425. This will drop depending on your elevation. I just checked mine and it was 350 right on the dot. I am about 4500 feet. I think the blocks are the same between the 7.3s

1996 F250 crew cab. Hypermax intercooler, Gearhead tunes, 4" exhaust, 6637 intake, Autometer gauges, Dana 60, 6.0 cooling fan, Built e40d, Firestone airbags, Full Force stage ones more to come. SOLD

2003 7.3 F250 Lariat. Mostly stock.
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post #3 of 8 Old 06-01-2013, 05:49 PM Thread Starter
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post #4 of 8 Old 06-01-2013, 09:53 PM
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The bottom end is identical from 94.5-03, with e the exception of the rods in 2000-03 being pmr

-Kris-
2000 excursion V10 2wd 230k
2000 Excursion 7.3 4x4 246k
1995 CCLB DRW 324K
2001 CCLB DRW 319K
Dp tuner infinity, exhaust, intake, chipped, tricked, and wrecked


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The stock downpipe in an OBS is flat because I'm a ginger.
Quote:
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Finding a decent woman is like shopping for a used truck. You spend most of your time picking through the money pits, wrecks, and basket cases until you find one that you can tolerate
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Well at least you caught the loose bolts before they cause any damage. Nothing worse than a sloppy hole
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post #5 of 8 Old 07-25-2013, 12:43 PM Thread Starter
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How long should u crank the truck to register the psi. Or just continue to crank until the psi levels out?


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post #6 of 8 Old 07-25-2013, 02:06 PM
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When I did a compression test on a gasser it was 3 turns iirc

-Kris-
2000 excursion V10 2wd 230k
2000 Excursion 7.3 4x4 246k
1995 CCLB DRW 324K
2001 CCLB DRW 319K
Dp tuner infinity, exhaust, intake, chipped, tricked, and wrecked


Quote:
Originally Posted by marine5811
The stock downpipe in an OBS is flat because I'm a ginger.
Quote:
Originally Posted by alberta 7.3
Finding a decent woman is like shopping for a used truck. You spend most of your time picking through the money pits, wrecks, and basket cases until you find one that you can tolerate
Quote:
Originally Posted by JJFLASH
Well at least you caught the loose bolts before they cause any damage. Nothing worse than a sloppy hole
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post #7 of 8 Old 07-26-2013, 10:53 AM Thread Starter
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iirc?


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post #8 of 8 Old 07-26-2013, 11:02 AM
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If I recall correctly

-Kris-
2000 excursion V10 2wd 230k
2000 Excursion 7.3 4x4 246k
1995 CCLB DRW 324K
2001 CCLB DRW 319K
Dp tuner infinity, exhaust, intake, chipped, tricked, and wrecked


Quote:
Originally Posted by marine5811
The stock downpipe in an OBS is flat because I'm a ginger.
Quote:
Originally Posted by alberta 7.3
Finding a decent woman is like shopping for a used truck. You spend most of your time picking through the money pits, wrecks, and basket cases until you find one that you can tolerate
Quote:
Originally Posted by JJFLASH
Well at least you caught the loose bolts before they cause any damage. Nothing worse than a sloppy hole
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