Home » Public Forums » GMCnet » Diesel GMC for sale
| Diesel GMC for sale [message #199992] |
Tue, 26 February 2013 18:17  |
hertfordnc
Messages: 1164
Registered: September 2009
Location: East NC
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RC and I were interested in this one so i called the seller and picked his brain for over an hour.
Gary was very generous with information and very honest about the saga of his GMC.
Shortly after he bought it the engine croaked. Being a diesel fan, and unencumbered by knowledge or fear, he dove in and hired a mechanic to do a diesel conversion.
Together they solved one problem at a time until it was done.
Then the diesel shredded the transmission. Manny hooked him up with the right trans and now it runs great.
Gary bought the coach to use professionally. He travels all over the west doing video production. He loves the diesel coach, says it runs great and climbs like a goat but he doesn't feel it would be optimal for his business.
I plan to follow the story and see where it ends.
http://www.gmcmotorhomesforsale.com/forsale/CO/denver/3520080548/
Dave & Ellen Silva
Hertford, NC
76 Birchaven, 1-ton and other stuff
Currently planning the Great american Road Trip Summer 2021
It's gonna take a lot of Adderall to get this thing right.
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| Re: Diesel GMC for sale [message #200045 is a reply to message #199992] |
Tue, 26 February 2013 21:38  |
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Strange that the most unusual aspect of this GMC is the diesel engine and not one photo of the install. Hmmm
Bill Brown - '77 Buckeye Cruiser
Coshocton OH
carguybill@sbcglobal.net
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| Re: Diesel GMC for sale [message #200046 is a reply to message #199992] |
Tue, 26 February 2013 21:43 |
rcjordan
Messages: 1913
Registered: October 2012
Location: Elizabeth City, North Car...
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Dave did the interview last night, then forwarded the photos to me. (We're hosting that ad, it's not Craigslist.). We're supposed to get engine pix soon.
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| Re: Diesel GMC for sale [message #200084 is a reply to message #200045] |
Wed, 27 February 2013 08:25 |
hertfordnc
Messages: 1164
Registered: September 2009
Location: East NC
Karma: 0
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| carguy wrote on Tue, 26 February 2013 21:38 |
Strange that the most unusual aspect of this GMC is the diesel engine and not one photo of the install. Hmmm
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Having talked to the guy for a long time, i don't feel there is anything suspicious. He was admittedly naive. He just bought an engine nad hired a mechaninc. He didn't know at the time the hurdles he faced or that the results might be historicly significant so he and his mechaninc did nothign to document the process.
I think these photos are from when he originally purchased the coach. He's a busy guy, took us over a week to line up a time for a call.
But once i got him on the phone he was very generous with time and information.
He has a hot prospect coming up from NM today but if he does not sell the coach I think i can pester him for some engine photos, expesilly if you all show some interest and if he thinks it might help sell the coach.
Dave & Ellen Silva
Hertford, NC
76 Birchaven, 1-ton and other stuff
Currently planning the Great american Road Trip Summer 2021
It's gonna take a lot of Adderall to get this thing right.
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| Re: Diesel GMC for sale [message #200094 is a reply to message #199992] |
Wed, 27 February 2013 10:43 |
rcjordan
Messages: 1913
Registered: October 2012
Location: Elizabeth City, North Car...
Karma: 1
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I want new diesel drivetrain all the way down to where the rubber hits the road. If I have to build an new COE cab to cover it with artistic style & grace, fine.
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| Re: [GMCnet] Diesel GMC for sale [message #200096 is a reply to message #200091] |
Wed, 27 February 2013 10:55 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Manny's conversion uses an inline 4 cylinder engine, and Bill Hubler uses a
6.5 L. GM V8 Diesel. The performance on both is about equal. Both report
around 17 mpg on Diesel. Both have shown to be more reliable than a twin
turbocharged 540 cu in Cadillac. But, not as much fun during burnouts.
(grin)
Jim Hupy
Salem, Or
78 Gmc Royale 403
On Feb 27, 2013 8:04 AM, "Howard" <hnielsen2@cox.net> wrote:
> Manny also has a diesel GMC
>
> All is well with my Lord
> Howard
> On Feb 27, 2013, at 7:40 AM, Armand Minnie <armand@minniebiz.com> wrote:
>
> >
> >
> > You do know that both Bill Hubler and Mark Hogenboom have installed big
> diesels in their GMCs? Mark says he can make oil pans - "how many do you
> want?". Apparently not that hard to do if you have what it takes - either
> money or skill or both.
> > --
> > Armand Minnie
> > Marana, AZ
> > '76 Eleganza II TZE166V103202
> > http://www.minniebiz.com
> > http://www.gmcws.org
> >
> > _______________________________________________
> > GMCnet mailing list
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| Re: [GMCnet] Diesel GMC for sale [message #200116 is a reply to message #200096] |
Wed, 27 February 2013 15:31 |
armandminnie
Messages: 864
Registered: May 2009
Location: Marana, AZ
Karma: 2
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| James Hupy wrote on Wed, 27 February 2013 09:55 |
Manny's conversion uses an inline 4 cylinder engine, and Bill Hubler uses a
6.5 L. GM V8 Diesel. The performance on both is about equal. Both report
around 17 mpg on Diesel. Both have shown to be more reliable than a twin
turbocharged 540 cu in Cadillac. But, not as much fun during burnouts.
(grin)
Jim Hupy
Salem, Or
78 Gmc Royale 403
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I think that while the mileage might be similar, from talking to Manny, Bill and Marc the power is very different. Manny has no power compared to the big diesels which both Bill and Marc say is more than enough.
Armand Minnie
Marana, AZ
'76 Eleganza II TZE166V103202
visit my gmc blog
click here to visit gmcws.org
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| Re: Diesel GMC for sale [message #200117 is a reply to message #199992] |
Wed, 27 February 2013 15:50 |
rcjordan
Messages: 1913
Registered: October 2012
Location: Elizabeth City, North Car...
Karma: 1
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>more than enough
Looking at the Coop's Koba engine torque charts, I ended up in the 6.x diesel category pretty quickly.
In one of our businesses we've had great luck with Isuzu COE diesel trucks since the mid-80s --all rear drive though, but hauling mostly 24' freight bodies. I keep searching/hoping for a FWD Isuzu 1-ton diesel, but no luck so far.
SOLD 77 Royale Coachmen Side Dry Bath
76 Birchaven Coachmen Side Wet Bath
76 Eleganza
Elizabeth City, NC
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| Re: Diesel GMC for sale [message #200137 is a reply to message #199992] |
Wed, 27 February 2013 18:56 |
rcjordan
Messages: 1913
Registered: October 2012
Location: Elizabeth City, North Car...
Karma: 1
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I'd go with a 4.7x liter turbocharged Isuzu in a heartbeat. Something like the late 90's 4HE1 engine in their NPR model. It would pull a 22 ft enclosed cargo body with freight all day long and get 15 mpg. The only problem I had was speeding. Luckily, the turbo had a distinctive whine when you started to approach 70 mph. Best. Truck. Ever.
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| Re: [GMCnet] Diesel GMC for sale [message #200151 is a reply to message #200137] |
Thu, 28 February 2013 06:59 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Those are my rental weapon of choice when I haul transmitters and the like between markets. Ryder calls them a 'city van'. Two complaints (which wouldn't relate to fitting the engine/trans in a GMC): The ride is choppy - which is true of about any COE box; and the shifter is where the BWD kicks it in neutral when he turns around to sleep looking in a different direction. But, put it on 70, punch the autopilot and hang on.
--johnny
'76 23' transmode norris
'76 palm beach
From: RC Jordan <rc@rcjordan.com>
To: gmclist@temp.gmcnet.org
Sent: Wednesday, February 27, 2013 7:56 PM
Subject: Re: [GMCnet] Diesel GMC for sale
I'd go with a 4.7x liter turbocharged Isuzu in a heartbeat. Something like the late 90's 4HE1 engine in their NPR model. It would pull a 22 ft enclosed cargo body with freight all day long and get 15 mpg. The only problem I had was speeding. Luckily, the turbo had a distinctive whine when you started to approach 70 mph. Best. Truck. Ever.
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Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: Diesel GMC for sale [message #200201 is a reply to message #199992] |
Thu, 28 February 2013 17:28 |
rcjordan
Messages: 1913
Registered: October 2012
Location: Elizabeth City, North Car...
Karma: 1
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I'll be getting with the Koba group within the next few weeks as the Royale is schedule to get that implant. I'll see what I can dig up. 355.5 @ 1727 is all I have now.
That said, since the Koba is considered to be one of the engines to emulate, I simply went looking for a similar torque curve in our normal driving range rpms. The 6.xL Fords look close enough to have someone far more experienced than I am to make the call. As for the Isuzu 4.x Turbo, I'd do it in a minute based on my experience with that engine pulling equally, or usually slightly more, problematic loads than the GMC.
SOLD 77 Royale Coachmen Side Dry Bath
76 Birchaven Coachmen Side Wet Bath
76 Eleganza
Elizabeth City, NC
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| Re: [GMCnet] Diesel GMC for sale [message #200208 is a reply to message #200201] |
Thu, 28 February 2013 17:50 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Agreed, Drew builds a damn good engine.
However, since it puts out 355.5 at 1700 there is no way it will match the 8.1 that puts out 410 at 1200 as shown in this chart:
http://www.gmcmhphotos.com/photos/data/500/2009_Kodiak_8_1.pdf
I was talking to Dave Lenzi about this chart and he noted the model he has produces even more torque and horsepower.
The bore and stroke of the 455 is 4.126 by 4.25; the 8.1 (496 cu in) is 4.37 by 4.25.
Regards,
Rob M.
Sydney, Australia
AUS '75 Avion-The Blue Streak TZE365V100428
USA '75 Avion-Double Trouble TZE365V100426
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of RC Jordan
Sent: Friday, March 01, 2013 10:29 AM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Diesel GMC for sale
I'll be getting with the Koba group within the next few weeks as the Royale is schedule to get that implant. I'll see what I can
dig up. 355.5 @ 1727 is all I have now.
That said, since the Koba is considered to be one of the engines to emulate, I simply went looking for a similar torque curve in our
normal driving range rpms. The 6.xL Fords look close enough to have someone far more experienced than I am to make the call. As
for the Isuzu 4.x Turbo, I'd do it in a minute based on my experience with that engine pulling equally, or usually slightly more,
problematic loads than the GMC.
--
77 Royale Coachmen Side Dry Bath
76 Birchaven Coachmen Side Wet Bath
How's the GMC market? Check out GMC Motorhomes For Sale
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Diesel GMC for sale [message #200209 is a reply to message #200200] |
Thu, 28 February 2013 17:49 |
k2gkk
Messages: 4452
Registered: November 2009
Karma: -8
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Just for a bit of reference, my 1999 GMC Sierra
2500's 6.0 L (366 CID) engine is rated at 300 HP
at 4800 RPM and 355 lb-ft torque at 4000 RPM. Its
tow rating with the 3.73:1 axle is 8500 pounds.
The GVWR is 7200 pounds. I expect empty weight is
5000 pounds or a bit more (never weighed). It has
gotten 12 mpg with 8000 pound trailer behind on
the flatlands of Illinois and Indiana. Throw in
the Ozarks of Missouri, and the hills of Ohio
and NW PA and SW NY and it would drop to average
of around 8-9 mpg. Empty, it will do the 16 mpg of
its EPA rating if I keep it at 65 or better.
I expect it would do a pretty decent job of moving
the GMC with a decent drive train.
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~~ ~ D C "Mac" Macdonald ~ ~~
~ ~ Amateur Radio - K2GKK ~ ~
~ ~ USAF and FAA, Retired ~ ~
~ ~ ~ Oklahoma City, OK ~ ~ ~
~~ ~ ~ "The Money Pit" ~ ~ ~~
~ ~ ~ ~ TZE166V101966 ~ ~ ~ ~
~ ~ ~ '76 ex-Palm Beach ~ ~ ~
~ www.gmcmhphotos.com/okclb ~
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
______________
*[ ]~~~[][ ][|\
*--OO--[]---O-*
> From: robmueller@iinet.net.au
> To: gmclist@temp.gmcnet.org
> Date: Fri, 1 Mar 2013 10:12:52 +1100
> Subject: Re: [GMCnet] Diesel GMC for sale
>
> RC,
>
> It would be nice to see what the torque is down in the 1200 rpm range for the engines below. It is safe to assume that the diesel
> would be higher than the 8.1.
>
> However, I doubt either the 403 or 455 would even come close to producing 400 ft lb at 1200 rpm.
>
> Regards,
> Rob M.
> Sydney, Australia
> AUS '75 Avion-The Blue Streak TZE365V100428
> USA '75 Avion-Double Trouble TZE365V100426
>
> -----Original Message-----
> From: RC Jordan
>
> Similar chart here for the 455 & 403
>
> http://www.gmccoop.com/images/403_vs_455.jpg
>
> Doesn't go below 1700 rpm, though.
>
> The 6.7L Ford Powerstroke chart
>
> http://www.hsperformance.com/wp-content/uploads/2010/12/2011-STOCKvsHOT.jpg
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| Re: Diesel GMC for sale [message #200217 is a reply to message #199992] |
Thu, 28 February 2013 19:03 |
rcjordan
Messages: 1913
Registered: October 2012
Location: Elizabeth City, North Car...
Karma: 1
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>there is no way it will match the 8.1 that puts out 410 at 1200
I have tractors for any plowing I need to do, Robert heheh! Most of my haunts are dead flat. I'm not planning on towing any 6000# boats like that Koba from Michigan is doing. I don't see much benefit for me in the 8.1.
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| Re: [GMCnet] Diesel GMC for sale [message #200222 is a reply to message #200209] |
Thu, 28 February 2013 19:44 |
storm'n
Messages: 492
Registered: April 2007
Location: Ont. Can
Karma: 0
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--- On Thu, 2/28/13, D C _Mac_ Macdonald <k2gkk@hotmail.com> wrote:
From: D C _Mac_ Macdonald <k2gkk@hotmail.com>
Subject: Re: [GMCnet] Diesel GMC for sale
To: "gmclist@temp.gmcnet.org" <gmclist@temp.gmcnet.org>
Date: Thursday, February 28, 2013, 6:49 PM
Just for a bit of reference, my 1999 GMC Sierra
2500's 6.0 L (366 CID) engine is rated at 300 HP
at 4800 RPM and 355 lb-ft torque at 4000 RPM. Its
tow rating with the 3.73:1 axle is 8500 pounds.
The GVWR is 7200 pounds. I expect empty weight is
5000 pounds or a bit more (never weighed). It has
gotten 12 mpg with 8000 pound trailer behind on
the flatlands of Illinois and Indiana. Throw in
the Ozarks of Missouri, and the hills of Ohio
and NW PA and SW NY and it would drop to average
of around 8-9 mpg. Empty, it will do the 16 mpg of
its EPA rating if I keep it at 65 or better.
I expect it would do a pretty decent job of moving
the GMC with a decent drive train.
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~~ ~ D C "Mac" Macdonald ~ ~~
~ ~ Amateur Radio - K2GKK ~ ~
~ ~ USAF and FAA, Retired ~ ~
~ ~ ~ Oklahoma City, OK ~ ~ ~
~~ ~ ~ "The Money Pit" ~ ~ ~~
~ ~ ~ ~ TZE166V101966 ~ ~ ~ ~
~ ~ ~ '76 ex-Palm Beach ~ ~ ~
~ www.gmcmhphotos.com/okclb ~
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
______________
*[ ]~~~[][ ][|\
*--OO--[]---O-*
> From: robmueller@iinet.net.au
> To: gmclist@temp.gmcnet.org
> Date: Fri, 1 Mar 2013 10:12:52 +1100
> Subject: Re: [GMCnet] Diesel GMC for sale
>
> RC,
>
> It would be nice to see what the torque is down in the 1200 rpm range for the engines below. It is safe to assume that the diesel
> would be higher than the 8.1.
>
> However, I doubt either the 403 or 455 would even come close to producing 400 ft lb at 1200 rpm.
>
> Regards,
> Rob M.
> Sydney, Australia
> AUS '75 Avion-The Blue Streak TZE365V100428
> USA '75 Avion-Double Trouble TZE365V100426
>
> -----Original Message-----
> From: RC Jordan
>
> Similar chart here for the 455 & 403
>
> http://www.gmccoop.com/images/403_vs_455.jpg
>
> Doesn't go below 1700 rpm, though.
>
> The 6.7L Ford Powerstroke chart
>
> http://www.hsperformance.com/wp-content/uploads/2010/12/2011-STOCKvsHOT.jpg
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