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Author Topic: Parting out MCI 7  (Read 645 times)
LowTide
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« on: March 07, 2014, 04:05:45 PM »

I ran across this MCI 7 being parted out and thought that someone might be interested in some parts.

The radiators got my attention.....Wink
http://lasvegas.craigslist.org/rvs/4346276620.html

Make it a great weekend!
Mike

Note: I have no affiliation with this ad or person....just happened on it.
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Mike and Lori
Sunny Phoenix Arizona
"1973 MCI MC-7 Challenger"


"A nation of sheep helps breed a government of wolves"
Tikvah
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« Reply #1 on: March 07, 2014, 05:14:14 PM »

Quote
740 electric shift Allison auto trans with retarder

What is a retarder on a transmission?
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I couldn't repair my brakes, so I made my horn louder.
1989 MCI-102 A3
DD 6V92 Turbo, Alison
Tons of stuff to learn!
Started in Cheboygan, Michigan (near the Mackinaw Bridge).  Now home is anywhere we park
LowTide
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« Reply #2 on: March 07, 2014, 05:25:43 PM »

What is a retarder on a transmission?

I have no idea, I am new to this.
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Mike and Lori
Sunny Phoenix Arizona
"1973 MCI MC-7 Challenger"


"A nation of sheep helps breed a government of wolves"
Jriddle
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« Reply #3 on: March 07, 2014, 05:43:40 PM »

I have no idea, I am new to this.

It is like a brake to help slow you down. No subsitute for service breakes just a helper.

John
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If It Can't Be Grown Then It Has To Be Mined
John Riddle
Wells NV
1984 MC9
Tikvah
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« Reply #4 on: March 07, 2014, 05:46:02 PM »

It is like a brake to help slow you down. No subsitute for service breakes just a helper.

John

Like Jake Brakes?  As effective? 
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I couldn't repair my brakes, so I made my horn louder.
1989 MCI-102 A3
DD 6V92 Turbo, Alison
Tons of stuff to learn!
Started in Cheboygan, Michigan (near the Mackinaw Bridge).  Now home is anywhere we park
Jriddle
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« Reply #5 on: March 07, 2014, 07:14:01 PM »

Like Jake Brakes?  As effective?  


Can be. But could get transmission hot if used for prolonged periods. http://www.svfd.net/SVFD%20Files/Articles/Engineer/Retarder%20Operation%20How%20Does%20It%20Work.pdf
« Last Edit: March 07, 2014, 07:15:50 PM by Jriddle » Logged

If It Can't Be Grown Then It Has To Be Mined
John Riddle
Wells NV
1984 MC9
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« Reply #6 on: March 08, 2014, 01:00:37 AM »

Having the Allison 4000MHR w/retarder in my 31,000 lb coach, while towing a 4,500 F150 pickup, desending a 6% interstate for 6 miles at 45 mph in 4th gear, the retarder temp goes to 270, sump to 230 engine coolant temp to 210 while not using the foot pedal.   Surprising the engine water temp runs higher down the mountain than when going up with the 500 hp ISM.   Yes I love it and would not feel as comfy with a Jake on a DDC 71 or 92, once you experience one, you get sold speedo.
Dave M
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MCI7 20+ Yrs
Foretravel w/ISM500
luvrbus
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« Reply #7 on: March 08, 2014, 05:39:36 AM »

Some diesel engines the retarder is your only choice the older L-10 Cummins are a PITA to install Jakes
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Live each day like it was your last,one day it will be
ol713
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« Reply #8 on: March 12, 2014, 09:25:27 AM »


     Hi;
        Thanks for the info.  I have a 70' MC-7 also and am always
        looking for parts.  Was surprised to see a bus in Las Vegas
        craigs list actually located in Calif near Readding.  It is a long
        way from me, but I will contact the seller and plan a trip.
                                      Thanks again,  Merle.
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