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  #46  
Old 01-04-2006, 08:31 AM
boneheaddoctor's Avatar
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I'd take a GM and repower it with a Cummins.....

If I ever blow the 6.2 in mine thats what I intend to do.
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  #47  
Old 01-04-2006, 08:42 AM
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Thanks for your concern Tom, was away on lecture tours and also shifting to a new house, still safe and sound and nice to hear from you.

Happy New Year to you.
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  #48  
Old 01-04-2006, 08:46 AM
t walgamuth's Avatar
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bones

there used to be a company near here that sold kits for doing that. i once saw a suburban at a fuel station with one. the guy loved it. the cummins is a lot heavier than the 6.2 though, i think about 1200#. the 6.2 surely isn't much more than 7 or 800.

my heart is with you though.

tom w
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.
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  #49  
Old 01-04-2006, 09:16 AM
boneheaddoctor's Avatar
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Quote:
Originally Posted by t walgamuth
there used to be a company near here that sold kits for doing that. i once saw a suburban at a fuel station with one. the guy loved it. the cummins is a lot heavier than the 6.2 though, i think about 1200#. the 6.2 surely isn't much more than 7 or 800.

my heart is with you though.

tom w
I've only seen it done in magazines...but not ready to do it since mine still runs fine....plus I don't have the funds to imbark on that project...the biggest gripe I have with mine is the lack of an Overdrive. The 700R4 is jst not as strong as the TH400 that came in my truck....adn the cost of a 4L80 with a standalone computer is almost as much as I paid for the truck...well with adapters and drive shaft modifications it would come close.
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Proud owner of ....
1971 280SE W108
1979 300SD W116
1983 300D W123
1975 Ironhead Sportster chopper
1987 GMC 3/4 ton 4X4 Diesel
1989 Honda Civic (Heavily modified)
---------------------
Section 609 MVAC Certified
---------------------
"He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche
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  #50  
Old 01-04-2006, 09:40 AM
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Quote:
Originally Posted by t walgamuth
there used to be a company near here that sold kits for doing that. i once saw a suburban at a fuel station with one. the guy loved it. the cummins is a lot heavier than the 6.2 though, i think about 1200#. the 6.2 surely isn't much more than 7 or 800.

my heart is with you though.

tom w
I'd love to do that to my 2002 Suburban but it only has 40K miles on the original engine. Even after the engine broke down, i figure that the suburban wouldnt be worth crap by them and putting a cummins would be a waste of money. I wish you could order it BRAND NEW from GM.
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  #51  
Old 01-04-2006, 09:48 AM
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I prefer the older 12V Cummins engines myself (prior to 1988). For longetivity, the 5 speed is the tranny to look for. One point of interest in considering the V8 vs I6 engine, whether it be gas or diesel, is that the I6 has 7 main bearings (vs 5 in the V8) and 25% fewer moving parts.....you do the math.

I researched the 4 cylinder diesel in the Jeep Liberty. It is made by an Italian company. To their credit, they have been making diesels since 1947
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  #52  
Old 01-04-2006, 10:04 AM
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Quote:
Originally Posted by dieselmania
I did hear it's not a truly tried and tested Isuzu like the old Isuzu standards, and also the injectors prone to early failure and very expensive.
the department chair at montevallo university drives a new model duramax and he had to have his complete fuel system replaced. pump, injectors...all of that.

i had attempted to make a diesel buddy out of him(even the work trucks on campus there were gas powered-- a few tdis peppered in, but only two real diesels in the art department) and he would answer questions thusly:

question:
"what type of mileage do you get in that big ole truck? i like my diesel, but how big of a hit in mileage do you take for having an extra ton and a half of vehicle to carry around?"

answer:
"i donno--i just put gas in it when it needs it."

exchange 2:

"how reliable is that duramax truck, clifton?" "pretty good truck" "have you had any problems out of it? "naa, i just put a new fuel system on it-- but they said its because how dirty our fuel is"

what? heh heh i wouldnt touch a duramax with a 10 foot pole.

our ram, on the other hand---318 engine, normal laramie xlt, 97 model, 185k. just broke a window regulator. nothing rattles, nothing squeaks, its really a VERY well built truck. i think the merge kind of hurt dodges trucks. theyre cheaper now. and it sort of seems like theyre copying their own design now.
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  #53  
Old 01-04-2006, 12:48 PM
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"I researched the 4 cylinder diesel in the Jeep Liberty. It is made by an Italian company. To their credit, they have been making diesels since 1947"

The dumbass salesman told me it was made by Mercedes.

P.S....how do you highlight quotes?
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  #54  
Old 01-04-2006, 12:50 PM
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Quote:
Originally Posted by dieselmania
"I researched the 4 cylinder diesel in the Jeep Liberty. It is made by an Italian company. To their credit, they have been making diesels since 1947"
The dumbass salesman told me it was made by Mercedes.

P.S. how do you highlight quotes??
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87 300Dturbo 180K #14 head still running R-12 SOLD 12/2017
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  #55  
Old 01-04-2006, 12:53 PM
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For a long time the media reported the diesel engine as being supplied for Mercedes while the product was still in pre-production stage. In the end, there was no Mercedes CDI diesel engine that met the power, cost and availability requirements that Jeep wanted, so the engine was sourced from VM Motori which coincidentally was once a Daimler-Benz Unit.
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  #56  
Old 01-04-2006, 12:54 PM
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Quote:
Originally Posted by dieselmania

P.S. how do you highlight quotes??
Like "magic"

see post #54

Last edited by Brian Carlton; 01-04-2006 at 01:01 PM.
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  #57  
Old 01-04-2006, 12:59 PM
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  #58  
Old 01-04-2006, 05:51 PM
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Quote:
Originally Posted by Brian Carlton
Like "magic"

see post #54
I think I got it
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  #59  
Old 01-04-2006, 07:23 PM
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My Dad bought his '03 F250 6.0 Powerstroke last February and we havn't had any problems other than the EGR valve (I wish I could just yank the whole EGR system off it and throw it as far as I could, and that just on principle). My brother also works at the local Ford dealer. It seems the problems with the 6.0 Powerstrokes tend to center around the injectors and head gaskets. The injectors seem to be a hit or miss thing, some vehicles need them replaced long before they should, some never have a problem. The head gaskets tend to go out when they're worked hard; I'm not sure where the problem lies there.
Overall, I really like the truck. The interior is rock-solid after over 100K, it drives pretty well (the only gripe is the steering, its sloppyness annoys me), and when you get on it, it flat-out hauls. If it weren't for reliability issues, I'd hands-down recommend it over either Cheby or Dodge. Motor Trend did a test a couple years back, Ford vs. Chevy vs. Dodge, and the Ford simply out-hauled the others. Despite weighing more and having a lower peak torque rating, the Ford would simply outrun the others with a 10,000 lb trailer. The Ford five-speed is a sweet transmission too: very smooth, keeps the engine in its best powerband, and seems to be tough enough. Don't kid yourself, Dodge bought the best diesel, but they can't match Ford on the rest of the driveline. Get a manual if you get a Dodge, their automatics slow them down and probably won't last as long. GM is smart to use an Allison tranny, and I've heard they're good, but I would never bother with a Meltomax diesel. Anymore, GM seems more interested in finding new ways to sell trucks to yuppies who won't ever really use them than making serious work trucks. I think GM's gassers are decent engines, probably equivalent to Ford's, but it comes to chassis, it seems that for a while now Ford has simply been making tougher turcks. Dodge is still in the truck business for one reason: Cummins. They're not as bad as they used to be, but in a number of ways they've been playing catch-up with Ford and Chevy since the eighties.
Like I said, reliability issues aside, Ford has the best 3/4-1 ton diesel. Really though, I don't think any of the big three have really been that hot in terms of reliability since they went to electronic diesels. We have a friend who had a Powerstroke that he got tired of periodically replacing sensors on, so he asked the shop who worked on it for him what they thought was the most trouble-free. They recommended the later non-electronic Cummins, and so he bought a '97 Dodge and is happy with it. Cummins is still probably the best, but I don't think they're as good as they were. GM, in my opinion, has a history of making decent but underpowered diesels (like the 6.5 and 6.2s; we'll just ignore the 5.7). The Duramax had serious problems with melting heads early on, and I would hazard to guess that they're probably about equal to Ford on the reliability scale right now. Ford, I've heard, is moving to a 6.4 diesel in the next several years. It's supposed to have substantially more power, and I would hope, more wrinkles ironed out; it's still made by International and is not dissimilar to the 6.0 in general design. Also, I've heard the "more moving parts" argument, but I don't buy it. The Powerstrokes have always been pretty solid in terms of the rotating assembly, valvetrain, etc, it's been the injection system and electronics that have been the trouble spot. Finally, it could be interesting to see what Toyota would do if it made a truck, but I wouldn't expect an instant revolution in truck design and construction. A darn good truck, probably, but I think all of the big three are capable of that. The two biggest problems are their upper managements' (and while it's possible, I think all of them realize how utterly foolhardy making a vehicle that's supposed to start breaking down after it gets off warrenty is), and that millstone they're dragging that calls itself UAW.
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  #60  
Old 01-04-2006, 08:36 PM
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Quote:
Originally Posted by MT_Merc
The Duramax had serious problems with melting heads early on, and I would hazard to guess that they're probably about equal to Ford on the reliability scale right now.
Nope... the Ford SuperDuty trucks equipped with the 6.0L diesel engine are at the very bottom of the reliability scale right now.
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