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#1
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Cab12 Radiator brace bar? Measurement overall?
Does anyone have an original brace bar that goes behind the radiator on a Cab12? I am looking for the overall length of the brace in order to check the distance from one cast rad support to the other, on my cab 11. I am under the impression that the distance between the two castings is too big on my C8 and that some bending or shims are needed.....however the problem is I have no measurements to work from, as the U-shaped rad surround is heavily corroded and probably bent as well.
I would also be interested if anyone has a drawing of the brace itself, as I am thinking of making a repro for my truck to get some more stiffness in the front part of the cab. Alex
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Chevrolet C8 cab 11 FFW BSA Folding Bicycle |
#2
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Excellent idea Alex...
Nice picture by the way.....
Hi Alex. I reproduced one and can take exact measurements tomorrow and send it to you. I does make the front end much more solid and brings up both cast bracket together....... start by using longer bolts to pull it together then replace with shorter ones. Bob C
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Bob Carriere....B.T.B C15a Cab 11 Hammond, Ontario Canada |
#3
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Hi Bob,
That would be awesome and very much appreciated! I forgot to say that the reason I think the castings on my truck are too far apart, is that the nose panel that goes over the radiator, only fits over the cast brackets by bending it a bit outwards I couldn't remember where I got that picture from...I thought it was from one of our Aussie friends....but, by the sound of it....it's a Hammond barn orginal! sorry for that! Alex
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Chevrolet C8 cab 11 FFW BSA Folding Bicycle |
#4
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OK here it is......
Hi Alex
This maybe a long posting or maybe more than one....but here goes. Search for photoes taken at the time me made ours in 2014 but no measurements where taken....DUH!!!! First of all the picture you used came from one of my many postings and shows a cab 12 Chev at the "Chicken Farm" near Oshawa...... probably build up with house now. Now sure what became of that one. Digest this first batch will do some more....
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Bob Carriere....B.T.B C15a Cab 11 Hammond, Ontario Canada |
#5
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Part 2......
You will need to start with a rod about 40 inches long to give you leverage.
The bar should be heated red but only in the area you want to bend. make sure it is cold before doing second bend. The big rings where choosen to give a soft radius to the bar. The first one is easy...... the second one you have to duplicate the same bend while making sure the overall lenght will come out 25 in. 3/8...... you d have about a 1/4 in to play with as the bar is only partly inserted into the end piece and a button weld done. Make sure the hole to be drilled match the one on your truck. The bar is bent in such a fashion that if you put a short 12 in piece just below the bend the two bars will touch..... or in other words the offset is exactly the thickness of the bar 5/8. Hot or cold roll steel will work fine. when I installed mine I used temporary 2 inch bolts on each side and pulled the two side up....fenders ...nose...pulls the horse collar radiator support closer for a better fit of the rad..... everything lined up better. The replace the long bolts with the proper oval head slotted 5/16 machined screws. NOTE...... on each side of the sheet metal nose that fits over the radiator you will see 3 bolts holes BUT only the two rear most ones are used...front hole is there all cab 11/12 but no way to attach a bolt. By the way the cast support on each side is unique to the cab 11 or the cab 12.... I know I tried the holes do not lineup....... having said that I transplanted the sheet metal part that has the air vent from a cab 12 to my cab 11 with only a few slight modification. Just downsized some other photos now can't find where I saved them. Remember follow up questions are allowed and included in the basic consultation price. Bob C
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Bob Carriere....B.T.B C15a Cab 11 Hammond, Ontario Canada Last edited by Bob Carriere; 03-02-18 at 04:07. |
#6
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Final shot.....
More complete picture of that cab 12 at the Chicken Farm
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Bob Carriere....B.T.B C15a Cab 11 Hammond, Ontario Canada |
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Although this thread has had a happy resolution for Alex, can I stretch it out on a little tangent?
The brace bar IN FRONTof the radiator grille, as seen in the picture in the first post, was this a CMP-only part, or did it utilise a stock off-the-shelf Chevrolet part? The reason I ask is that a Chev repro-part supplier, the Filling Station, list several fender brace bars that have the same appearance as the Cab 12 bar. They don't however cross reference the original Chev part numbers, or give dimensions. The prices seem quite reasonable, so it would be good to know if another CMP related part is available from a retail source, or that a scrap yard vehicle donor can supply a period-correct item.
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You can help Keep Mapleleafup Up! See Here how you can help, and why you should! |
#8
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Interestink....!!!
Hi Tony
Shame they do not include dimensions. The bar is quite long and heavy...shipping by size and weight would be scary. If need be I can measure the bars I have...length / cross section. It would be easy enough to replicate with some basic black smithing skills.... heat hammer and drill. It does hold the "arches" together quite well but the inside behind the radiator brace does pull the nose sheet metal together even better It would not be unusual for off the shelf parts being used.... they were in rush back then. We have not seen any recent progress pictures from Alex....... PS...... check design pictures of 34 to 1940 Chev trucks....... no provision for an external brace similar to the CMP model....
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Bob Carriere....B.T.B C15a Cab 11 Hammond, Ontario Canada Last edited by Bob Carriere; 25-11-18 at 23:42. |
#9
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The "bar"....
Measured from two cab 12...... bar is 35 1/4 inch long....5/8 round stock
Each end is bolted to the arch bar, the fender and the air vent corner panel. Bar is not straight but has a one inch raised offset..... bolt head is 3/4 inch. Photos are on my cellphone and can't find my cord to download...... so photos are coming.
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Bob Carriere....B.T.B C15a Cab 11 Hammond, Ontario Canada |
#10
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CMp front fender brace cab 12
A few pictures worth many words....
Full view focus on reworked end offset location on arch Note..... the pen is inserted where the bolt would go into the arch, the fender then the airvent sheet metal. The hole is not round but cut out to a U shape allowing some flexibility to the fender. The end that is flattened is about 1/4 thick...... flat area 1 1/4 long x 1 inch wide....curvature of offset 2 inches.
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Bob Carriere....B.T.B C15a Cab 11 Hammond, Ontario Canada |
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