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Old 07-14-2017, 11:18 AM   #1
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1951 Crown Super Coach

Howdy all, I am new to the site and think its an awesome resource for bus enthusiasts and their passion!

I grew up in a converted Crown bus and spent my childhood traveling through Mexico and the United States. The reason I'm posting is that my father is getting older and has a converted 1951 Crown Super Coach (Not the one I grew up in) that he is considering selling. I'm trying to get an estimate/ ballpark on its value and see if its worth selling for him.

It has a completely overhauled motor and over the last 11 years approximately $30,000 in work done to it. It has a Cummins 180 diesel motor that is essentially completely rebuilt and original transmission. My dad is nearing 80 and cant remember some of the details, but he has a box full of paperwork on what he had done to it. It also has new tires but has been parked for about two years. I know there are many other details that are not answered here but hoping someone can point me in the right direction.

Cheers!
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Old 07-14-2017, 02:18 PM   #2
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Join Date: Jun 2016
Location: Orange County, CA
Posts: 290
Year: 1990
Coachwork: integral
Chassis: Crown Supercoach II
Engine: Detroit 6V92TAC, DDEC 2, Jake brake, Allison HT740
Rated Cap: 37,400 lbs GVWR
For an oldie like that it could be worth joining the Crown Coach Junkies forum and advertising it there. CCJ also has a Facebook page which is more popular now than their Yahoo forum, but as I don't do FB I can't tell you anything about that side of things! The oldest Crown I know of owned by a CCJ member is a 1955 tandem, the first ever 3-axle school bus, so a 1951 maybe could interest someone there!

Where is the bus now?

John
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Old 07-14-2017, 05:52 PM   #3
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Thanks for the response John, much appreciated!

The bus is currently in Grand Junction Colorado, but I'm considering driving it out to southern California where I live. I'm headed over to where its being stored tomorrow to take a closer look and take some photos of it and get a better handle on what I'm potentially dealing with.
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Old 07-14-2017, 10:58 PM   #4
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Location: Houston, Texas
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Year: 1946
Coachwork: Chevrolet/Wayne
Chassis: 1- 1/2 ton
Engine: Cummins 4BT
Rated Cap: 15
Great vintage iron! Just gas it up and go. But please...post a few pix first.
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Old 07-14-2017, 11:40 PM   #5
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A 1951 is pretty unusual and special!

Most of the Crowns from the early '50's had Hall-Scott gas engines. Those that didn't have H-S power had IHC RD450/501 gas engines. There were a few other engines used but it wasn't a significant number.

By the '60's, and particularly into the '70's gas power was no longer an economical choice. Consequently many owners of Crowns sent their buses back to the factory to be repowered.

The engine of choice for the vast majority of the repowers were Cummins NHH220 because it used the same engine mounts and bell housing as the H-S. It also became the "standard" engine until the Detroit Diesel 6-71 was adapted to run horizontally.

As far as I know no Crown ever used the Cummins C-180 engine. Gillig used it in a lot of RE buses in the '50's and '60's.

Pictures of the bus and of the engine would be very helpful.
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Old 07-15-2017, 08:46 AM   #6
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Thanks for the responses everyone, there is definitely a wealth of knowledge on these boards!! I am visiting my dad in Grand Junction Co. this weekend for a couple days and will get more photos. From what I can tell the bus did get the diesel conversion but looks like it still has the original 4 speed tranny. I am a shade tree mechanic but don't know too much about diesels.

*sorry about the photo orientation, I'm working from my phone
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File Type: jpg 20170713_120101.jpg (305.7 KB, 15 views)
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Old 07-15-2017, 09:27 AM   #7
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Join Date: Mar 2011
Location: Houston, Texas
Posts: 5,551
Year: 1946
Coachwork: Chevrolet/Wayne
Chassis: 1- 1/2 ton
Engine: Cummins 4BT
Rated Cap: 15
Gotta love the lines on Crowns.
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Old 07-15-2017, 02:56 PM   #8
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That's a nice looking early Crown. It's hard say what the market will bear when it comes to pricing a converted Crown. There was a nice early 1960s Crown conversion for sale on here recently that found a buyer. It was a 40 ft tandem Crown with a Cummins 220. Nicely converted, but very 1970s inside. He was asking $6500, and I think he probably got that. That's probably a good reference point for you.

Cheers,

Dave
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Old 07-15-2017, 02:57 PM   #9
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Here's a link to the for sale thread for that 40 ft Crown conversion.

http://www.skoolie.net/forums/f14/19...0-a-17492.html
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Old 07-15-2017, 02:59 PM   #10
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The Hall-Scott's were mega torque motors. They didn't need 5-speeds because they had plenty of go. The factory repower usually used the same 4-speed behind the NHH220.

Later buses were built with 5-speeds because the diesels didn't have as much torque and needed more gears.

Even later Road Ranger multi-range transmissions were offered mostly because the DD 2-cycle has such a narrow power and torque band.
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