How To: Ford CMP "Blitz" miscellany

[Keith Webb]

Be handy to have a source of supply when you find a nolathane replacement insulator. I love all this detail, thanks for sharing.

Originally Posted by Jacques Reed

Good Day,

Been a bit quite lately as Melbourne's Covid 19 lockdown restricts my travel to 5 km from home.

I have been revisiting the radiator mounting arrangements on my Cab 13.
Years ago I bought a Dennis Carpenter radiator mounting bolt and pad set similar to an original set used on my truck as shown in the attached.

The Spares Parts List shows a rubber insulator No. 8124 at the lower bracket of the radiator. I was not really happy with the use of the springs and washers there as the 3/4" diameter hole in the radiator bracket is much larger than the 3/8" bolt allowing a fair bit of movement. The hole in the chassis support has been enlarged over time also from this movement.

A parts truck had an original bolt No. 22237 on it and a mismatched one on the other side.

I Googled part 8124 and found the attached link.https://www.ebay.com.au/itm/27430874...53.m1438.l2649

I don't plan to use 80 year old rubber parts but it shows what they look like.

Thought I might go with a Nolathane polyurethane bushing of similar size.
Interested on any thoughts on the subject.

Cheers,

[Jacques Reed]

Keith,

I found a closer match to the size required for the radiator insulators.

Just received them after a 3 week wait for the post.
According to Nolathane's own technical info they can be machined to fit other applications. They give tool angles and feeds required on a data sheet. I just have to turn down the collar that fits through the radiator mounting holes.

Working on a mandrel to hold it in the lathe. Will see how it all goes.

IMG_0170a.JPG

On a completely different subject: I posted the attached photos on another site which may be of interest.

Yesterday I painted the headlight buckets a close match to the original reddish brown primer. They had been in just red primer for a long time.
Looking at available colours in aerosols of many brands, the closest match I could find was Mission Brown by White Knight paints sold at good old Bunnings. Although it was in gloss, a coat of clear satin took away a bit of the shine. It may not be a perfect match but it looks better than the red primer and give the buckets a bit of extra protection. Reassembled. last photo.

IMG_0164a.JPG IMG_0167.JPG IMG_0173a.JPG
Cheers,

[Keith Webb]

Good find Jacques! And you've also done a great job with the colour of the headlamp buckets.

[Jacques Reed]

Good Day,

Sometimes when you have been searching for info for a long time it just drops in your lap. The following is a case in point.

I have looked for original dimensions of the bows for a Holden Body Works 15 CWT GS body for my Ford F-15A. Found a few photos of them over the years but was unsure of their originality or the quality was too poor for estimating or scaling sizes. Have seen some with a crank in them where they fit the body and perhaps they are also genuine but a variation. Will stick with these anyway.

On a Facebook group I follow the original photo of a Chev C15-A was posted recently taken from the militaryimages.net website. Probably an archive photo also. It is a wartime photo so leaves no doubt in my mind to the accurate representation of the bows. My GS body is identical to the one in the photo.

On MLU a while ago an original drawing of a 3 ton Australian GS body was posted. It specified 1" gas pipe for the bows. It also showed an outside radius at the bends of 6". A bit of an assumption but I assumed the same 6" outside radius would be used on the smaller body hoops. The scaling was consistent with that size radius which was reassuring. The radiator brush guard is also 1" pipe but heavier Schedule 80. The OD is the same however and a spare one fits well in my holders.

1" pipe schedule 40 is 1.314" OD. That fits in perfectly with the space at the original holders on my body. Knowing the inside distance between the side of the bows, 83" and the distance from the top of the sides to the bottom of the sides, 25-1/2" it was relatively easy to scale up the dimensions. The length of the lines shown are specified at the time of drawing. A bit of reverse model making!

So hopefully this is accurate. At least it is better than the dodgy 3/4" pipe bows that came with the truck. Always happy to accept better info if it comes to hand.

Hope this is of some interest.

[m606paz]

Hi Jacques!
GM H pics belong to oldcmp.net
https://web.archive.org/web/20061212...t:80/c15a.html
Regards

[Mike Cecil]

Hi Jacques,

According to MGO Equipment Order LV6/GEN/MT13/4 issued 11 December 1944, the following sizes apply to the Ford and Chev canopy frame:

Width of main vehicle body: 6 feet 10-1/4 inches (not overall width)

Width of canopy frame centre to centre of frame pipes: 7 feet 2 inches for Aust No.2, 7 feet 1/4 inch for Aust No.1.

Overall height: 3 feet 7 inches
Corner radius 6 inches

Didn't know you were looking for this info.

Mike

[Jacques Reed]

Hi Mike and Mariano,

Thanks for that info. The 6-11" is the actual measurement taken off my body at the pads where the frames rest against. Pads are 1/4" thick steel so pretty close to Equipment order dimensions when added to width of vehicle body. My centre to centre equals 6-11" + 1.315 (one x pipe OD) = 7' 5/16"!

If I deduct 1/2" from the centre height and the side height I pretty well have nailed it!

Thanks Mariano for supplying the source of the photo also. I owe you one too Keith. Looked at that site long ago but didn't remember that photo.

Cheers,