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Author Topic: 3126 CAt ECM ?  (Read 308 times)
eagle19952
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« on: August 25, 2016, 05:35:21 PM »

life expectancy ?

problems with..

after market programming ...worth it ?

power increases ... max hp ?

other than CAT supplier/aftermarket recon ?
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Donald PH
1978 Model 05 Eagle w/Torsilastic Suspension,8V71 NA, DDAllison on 24.5's 12kw Kubota.
Wants Paint Smiley
Previously owned by Wee Willie Ent.
DoubleEagle
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« Reply #1 on: August 25, 2016, 07:16:12 PM »

I have a 3126B in a truck that is 16 years old, with no problems. The horsepower ranges from 175 to 330, but the lower the better for longevity. It has HEUI injectors which are electronically controlled and hydraulically activated using the motor oil. Changing the oil religiously is important because of that. For something under 35,000 gross it does pretty good. It has a deep throaty 5" exhaust. Changes to the rating have to be done by CAT, as far as I know. When I inquired about aftermarket changes a few years ago, I found nothing. It has a mixed reputation for service, some people refer to it as a grenade waiting to go off, but I think those are the people who expect too much, push it too hard, and don't change the oil on schedule. But then, I like the CAT 3208, which I also have in a dump truck, and some people think it is a throw-away engine not worth rebuilding.
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Walter
Dayton, Ohio
1975 Silvereagle Model 05, 8V71, 4 spd Spicer
1984 Eagle Model 10, 6V92 w/Jacobs, HT740
usbusin
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'60 PD4104-4355(sold) Now Freightliner Conversion




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« Reply #2 on: August 25, 2016, 08:06:58 PM »

I have a 3126b in my truck conversion and it is a very dependable engine.  Mine is set at 300 hp.  Normal service intervals and 132,000 miles to date.

GaryD
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Gary D

USBUSIN was our 1960 PD4104 for 16 years Ustruckin' is our 2001 Freightliner truck conversion
eagle19952
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« Reply #3 on: August 25, 2016, 08:21:30 PM »

Thanks Smiley
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Donald PH
1978 Model 05 Eagle w/Torsilastic Suspension,8V71 NA, DDAllison on 24.5's 12kw Kubota.
Wants Paint Smiley
Previously owned by Wee Willie Ent.
luvrbus
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« Reply #4 on: August 26, 2016, 07:36:22 AM »

The 3126 E was the better of the 3126's,the C7 was a good engine just the updated 3126E 
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Life is short drink the good wine first
opus
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« Reply #5 on: August 26, 2016, 07:54:57 AM »

The 3208 wasnt much of anything but it wasnt "bad" by any means.  If you just drove it, they were fine.  The problem was, people wanted 3408 power out of them.
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1995 BB All-American - A Transformation.
eagle19952
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« Reply #6 on: August 26, 2016, 03:18:27 PM »

The 3126 E was the better of the 3126's,the C7 was a good engine just the updated 3126E 

Someone told a friend that the ECM was only good for 4000 hours...and was PM item... Sad
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Donald PH
1978 Model 05 Eagle w/Torsilastic Suspension,8V71 NA, DDAllison on 24.5's 12kw Kubota.
Wants Paint Smiley
Previously owned by Wee Willie Ent.
luvrbus
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« Reply #7 on: August 26, 2016, 06:15:08 PM »

The ECM is not PM but the HPOP (high pressure oil pump) for the HEUI last about 4000 hrs or 200,000 miles if you are lucky,the C-7 doesn't use the HEUI,lol Cat let International have that system
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Life is short drink the good wine first
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