#1
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Welding/machining help please
If one wanted (for good reason, assuredly) to change around a CMP Chev steering box such that the cap (shown yellow) and the collar for the shaft (shown red) were reversed, how would one go about it? Can the cast housing be welded?
In the alternative, is there a commercial or miltary Chev steering box that is similar but reversed to the WW2 right hand drive type? |
#2
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Cast welding
...no problem did some today. Though in many areas welding of any sort on steering componments is illegal.
Preheat and post heat and either braze it (about 7 times as strong as base material ) or use cast welding rods and preheat and post heat it. Sean
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1944 Allis Chalmers M7 Snow Tractor 1944 Universal Carrier MKII M9A1 International Halftrack M38CDN 1952 Other stuff |
#3
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I would suggest you're headed into trouble. do you want the drop arm to come off the otherside of the box? doesn't it mean the drop arm will travel in the wrong direction? distortion? shrinkage? risk to life? legality?
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Bluebell Carrier Armoured O.P. No1 Mk3 W. T84991 Carrier Bren No2.Mk.I. NewZealand Railways. NZR.6. Dodge WC55. 37mm Gun Motor Carriage M6 Jeep Mb #135668 So many questions.... |
#4
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Correct direction
The shaft coming out the other side will provide the correct direction. Given this is the secondary steeing gear...the main one is in front...it will only see use at 2 mph perhaps twice in it's life for demonstration purposes (the only other 'driver' control being a throttle).
A better solution is that somewhere there is a GM steering box on another vehicle that is already the mirror image of a standard CMP one. CCKW's being left hand drive gave me some hope for this but it is configured the same way. Alternatively, if I can't get one working, I would want to reverse a casting for cosmetic purposes and leave the guts out. Then I run the risk of somebody trying to use it only to find out there is no steering at all! |
#5
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Re: Correct direction
Quote:
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SUNRAY SENDS AND ENDS :remember :support |
#6
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I had a 3/4 ton dodge that had been converted to rhd. They had just turned the box upside down. will that work?
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Bluebell Carrier Armoured O.P. No1 Mk3 W. T84991 Carrier Bren No2.Mk.I. NewZealand Railways. NZR.6. Dodge WC55. 37mm Gun Motor Carriage M6 Jeep Mb #135668 So many questions.... |
#7
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Probably not
If I did, then the truck would steer right when you turned the wheel left. I need to preserve the original gearing but have the shaft come out of the box on the other side. The drag link would also have to make a weird, non-scheduled bend.
Geoff, this is no mystery project, just that I now have good information (thanks James!!) on what a Fox rear steering gear looks like and am trying to get something in place, preferably working but may settle for cosmetic (ik). |
#8
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What I'm trying to do
The coloured one is a standard CMP box, the non-coloured is for a Fox. They are the same but for direction of the shaft.
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#9
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Final result desired:
This is the rear steering gear (photo copyright by James-the-Lucky) I'm trying to reproduce.
Unless somebody knows where there is an original??? The steering box and column swing on an arm bolted to the division plate between the engine and crew compartments. The 3/4" diameter shaft operates a fork that drives the pitman arm onto the sector shaft to engage the steering wheel. Please-oh-please let two or three MLUers each have one of these in their garge so a bidding war for the best and lowest price may begin. But please do not wait until I dummy up a replacement before you break the news that you have one!! |
#10
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Pull My Finger?
Bruce,
You mean to have us understand that your Fox has two steering wheels - preposterous! Next you will be having us on about their being one for going, and one for coming! Please try again on 01April. Stewart |
#11
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Bruce-even with a good weld I would think it would be almost im possible to get proper alignment between the sector gear and the worm gear - the steering box would have been machined to very close tolerance -regards-Greg
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#12
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Strange steering
Bruce,
I have some pictures somewhere of a ford 4x6 CMP that was converted to left hand drive by using the original steering box as you have shown. It was moved to the left and there were a few extra linkages, you know... I think it was upside down as well????. I'll dig up the pictures... Rob |
#13
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one more try
ok imagine the steering box on the left upside down, I think that it was below the steering knuckle instead of above. something like that
Rob |
#14
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Solution.....
HI Bruce
I am convinced that a left ahnd copy of that steering box must have existed for Chev civvy models. I have searched my old truck manuals but unfortunately they are only going back to early 50 and th old ones form th 40s are for Dodge. I would check the library for old truck shop manuals and look for 1938/39 models..... 3 to 5 ton size....... I am sure they did not create a new models for the CMP.... something off shelf was copied over to right side and casting made........ I would be tempted to invest time in research rather than welding or dummying up a set up...... A while back someone posted a web address with the CMP acronym that was putting up old shop manuals online for viewing ..... might be a good source.... anyone remember what it was called??? Good Luck with your project. Bob
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Bob Carriere....B.T.B C15a Cab 11 Hammond, Ontario Canada |
#15
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Old Manuals
Quote:
www.tocmp.com www.oldcarmanual.com Brian |
#16
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Look at what we found....
In the back of the Hammond junk yard......
...how many do you need Bruce....????
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Bob Carriere....B.T.B C15a Cab 11 Hammond, Ontario Canada |
#17
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...and another....
.......Alex made me do it....
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Bob Carriere....B.T.B C15a Cab 11 Hammond, Ontario Canada |
#18
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Why you dirty rat
and your weasley sidekick Alex too. Rust for you and bookworms for him.
(only kidding. You've got me thinking. Maybe it would be easier to leave the steering box alone and change the truck around?) |
#19
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Re: Why you dirty rat
Quote:
After picking him self up off the ground ,where he had fallen,killing himself laughing,Bob did the rest... How sweet it is to realize that there are others among us that have as weird a sense of humour as myself....I'm truely among friends in the CMP world...
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Alex Blair :remember :support :drunk: |
#20
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Re: Re: Why you dirty rat
Quote:
__________________
SUNRAY SENDS AND ENDS :remember :support |
#21
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Image not flipped
Bob may have flipped the image but the picture attached is not flipped. It is from a Chevy Cab over 1946 vintage.
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Phil Waterman `41 C60L Pattern 12 `42 C60S Radio Pattern 13 `45 HUP http://canadianmilitarypattern.com/ New e-mail Philip@canadianmilitarypattern.com |
#22
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I knew it......
Hi Phil
I Knew it...... thanks for confirming my assumption that the CMP steering box was in fact flipped by GM or whomever supllied them... I am sure that some junk yard hunting would supply the said box..... I would aim for a late 30 or early 40 GM truck.... Bob
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Bob Carriere....B.T.B C15a Cab 11 Hammond, Ontario Canada |
#23
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Truck pictured may go for parts
The cabover that the picture is from may be going for parts if so I'll snag the box.
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Phil Waterman `41 C60L Pattern 12 `42 C60S Radio Pattern 13 `45 HUP http://canadianmilitarypattern.com/ New e-mail Philip@canadianmilitarypattern.com |
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