Author Topic: A bnut type question  (Read 5585 times)

maria-n-skip

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A bnut type question
« on: October 12, 2007, 07:03:59 AM »

 On e-bay there is currently 1-46,2-48's and 1 - 52 GMC buses for sale. The one that has peaked
 my interest is the 48 closest to Montana. Bad engine (just the start I'm sure)
 
 So the question is what are the dimensions of a 6-71? I have a spare L10 that if possible I might
 want to put in.

   Probably just dreaming.

   Thanks
 Skip

 

Offline jackhartjr

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Re: A bnut type question
« Reply #1 on: October 12, 2007, 07:19:52 AM »
Hi folks, don't forget the Scenicruiser for sale in WA.
Jack Hart, CDS
1956 GMC PD-4501 #945 (The Mighty SCENICRUISER!)
8V71 Detroit
4 speed Spicer Trannsmission
Hickory, NC, (Where a call to God is a local call!)

Offline Stan

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Re: A bnut type question
« Reply #2 on: October 12, 2007, 07:29:49 AM »
Skip: The 6-71 in a GM bus will be a left turning engine.

maria-n-skip

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Re: A bnut type question
« Reply #3 on: October 12, 2007, 07:30:51 AM »
Jack,

   Can't seem to find it....do you have the link or number?

   Oh my that doesn't make good soap  :0   Thanks Stan

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Offline tekebird

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Re: A bnut type question
« Reply #4 on: October 12, 2007, 08:26:43 AM »
the 3751 has a very tight  engine compartment.  the only way something other than a 6-71 will fit is if it is smaller  or exactly the same size.

there are a host of other issues as well that would preclude most from taking on   a project like that

maria-n-skip

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Re: A bnut type question
« Reply #5 on: October 12, 2007, 08:39:42 AM »

Tekebird,

   I could go with my J.D. 150 hp. (a little light for what I would want) or go with a JD 210 hp.
 but the left hand rotation thing really brings up a quagmire of hurtles. Ag engines are fairly
 cheap and easy to work on. My case 501 engine is too big and my cat d333 is really to big.

 I seem to always forget about DD engines that do Left hand rotation. I have nothing against
 DD but I tend to stick to things I at least know how to rebuild.

 Thanks
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Offline jackhartjr

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Re: A bnut type question
« Reply #6 on: October 12, 2007, 09:40:53 AM »
Jack Hart, CDS
1956 GMC PD-4501 #945 (The Mighty SCENICRUISER!)
8V71 Detroit
4 speed Spicer Trannsmission
Hickory, NC, (Where a call to God is a local call!)

maria-n-skip

  • Guest
Re: A bnut type question
« Reply #7 on: October 12, 2007, 10:00:07 AM »
Jackhartjr,

  I would have never looked under "Collectibles > Transportation > Buses, Taxi Cabs"

   So I suppose if nobody can find it will it make minn?
  You know you can get it and I will store it for you  :)


   Skip

Dallas

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Re: A bnut type question
« Reply #8 on: October 12, 2007, 04:38:21 PM »
A 6-71 is 54"L X 29"W X 39"H and weighs 2190 Lbs. (Estimated)

A 6V71 is 41"L X 39"W X 48"H and weighs 2010 Lbs. (Estimated)

By contrast,
a 6V92 is 41"L X 39"W X 47"H and weighs 1960 Lbs. (Estimated)

A 6V92T is 41"L X 39"W X 52"H and weighs 2005 Lbs (Estimated)

Or,

An 8V71 is 47"L X 39"W X 51"H and weighs 2310 Lbs. (Estimated)

A way to get around the LH rotation problem, you could use a ZF transmission out of a Gillig or a Neoplan Transit.

Just being helpful.

Offline Green-Hornet

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Re: A bnut type question
« Reply #9 on: October 12, 2007, 04:44:16 PM »
Hi folks, don't forget the Scenicruiser for sale in WA.

Why do they have to have these so far away?

maria-n-skip

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Re: A bnut type question
« Reply #10 on: October 12, 2007, 04:51:46 PM »

 Green-Hornet,

   What I told "Jackhartjr" applies for you also. Buy it get it here K buck is their price on delivery.
 Plus I promise not to take it to WM to scare the tourists with an air horn in the middle of the night.

  Of course before the wind up all the pre buy stuff is advised.

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Offline tekebird

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Re: A bnut type question
« Reply #11 on: October 12, 2007, 05:06:22 PM »


Unfortunately in a 3751/4151, your limiting factors are every direction, Bernhart bus in PA did a repower on a Silversides some time ago...long process and I am sure was into the 25k+ range and had major engineering

http://www.bernhardbus.com/1947_silverside.html


Offline Stan

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Re: A bnut type question
« Reply #12 on: October 12, 2007, 05:11:15 PM »
Dallas: Does the ZF transmission have the right angle for a bus that old?

Offline TomC

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Re: A bnut type question
« Reply #13 on: October 12, 2007, 05:15:11 PM »
The 6-71 and L10 are close in demension, but you'd have to run the L10 with a reverser gear, or switch to a ZF transmission.  The only engine swap I've seen on a 3751 is using a Series 50 with a V730 Allison, and was an extremely tight fit.  Personally, just rebuilt the 6-71 into a turbo with air to air intercooler, you would go from 220hp and 600lb ft to 300hp and 900lb/ft torque-or 50% more torque!  Makes for a good performer.  Good Luck, TomC
Tom & Donna Christman. 1985 Kenworth 40ft Super C with garage. '77 AMGeneral 10240B; 8V-71TATAIC V730.

maria-n-skip

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Re: A bnut type question
« Reply #14 on: October 12, 2007, 05:44:02 PM »
Stan,

    If memory serves ZF makes a couple of diff configs for the 500 series transmissions.(EcoMat)  80 deg left hand and 80 deg right hand.
    Ok I looked it up don't trust my own memory.

 Dallas thanks. I printed out the dimensions and put it in my bus book for future reference.

 TomC
    That is always a good option. 900 lb/ft is a remarkable amount.

 Tekebird
   that is probably where I got the idea to begin with of course I didn't remember the money range. If I remembered the money
   and what I have spent on my bus already.........well I just won't go there :)

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