C60 cwt Signals CZMk IV

[Gordon Yeo]

Phil

I found a good 235 engine and did a very limited refurbish to it. It has fill flow oil and hydraulic lifters, and I raised the water pump with the adapter plate. I have been getting educated in the differences in ring gear teeth numbers and clutch plate diameters. I have the proper ring gear for the military starter and the large diameter clutch plate for a truck. I think I have the engine and tranny combo sorted.

Gord

[Gordon Yeo]

Bob

If I can't post a scan of the parts manual then do you really expect that I can post a video of an engine start up!!!!!

I think that I will try and find some way to have a brake booster that functions. The 15 Cwt. isn't prone to hurling me into the windshield and the increased weight of a 60 Cwt. will have to have the brakes boosted. I would wonder if the original booster could be replaced with the CCKW booster. There must be some thing that keeps those trucks going.

As to the four wheel drive engage, hopefully I wont be into that wet of conditions that the truck wont move in two wheel drive. If the need arises it will be desperate straights and I can crawl under the truck and engage manually. I think I should be able to.

Gord

[Gordon Yeo]

I have been stripping down the cab and chassis to sand blast, hopefully some of it will be done this week

[Gordon Yeo]

I have the upper cab in the shop to start working on it. From some of the horror stories were some people have started their restorations this may look like a walk in the park. The rust damage at the spot welds is the big issue and there will need to be some steel replaced. The upper roof section is in incredibly good condition, only surface rust and a few very small dents.

[Phil Waterman]

Hi Gordon

Great progress, you will definitely want to figure out a brake booster for your truck. Though these trucks do have good breaks, particularly when compared to other trucks of the day. Good working booster and keeping the brakes in adjustment are critical to being able to stop them.

The C60S or C60L with larger drums, as empty trucks are not bad without the booster, but with a load or body you really need the booster. Take it that you are missing the rather complicated linkage assembly for the booster as well.



I assume you are looking at some of the hot rod brake booster conversion, do keep us posted on what you work out for a booster.

Drove my C60S with the radio box up and down a auto road on a mountain near here yesterday, no problems going up 2nd-3rd gear going up but kept it in second coming down just to minimize the reliance on the brakes of stopping 10,000LBS of truck.

Cheers Phil

[David Dunlop]

Just a thought, but could the power/booster brake set up used on the White halftracks be modified/used for the C60?

David

[Gordon Yeo]

Phil and David

I have the original booster that was on the truck, but haven't opened it up to check condition. I can't imagine I will find a serviceable chamber inside the booster canister. So, the next question is what do I use. I have done a very quick internet search and there are under floor boosters for post war vehicles. Hopefully there will be a unit that can be made to function on the CMP system and fit into the mounting position. My concern with using a 60 to 70 year old brake booster is the reliability of vintage parts that my perish with age. Quite another thing to rebuild wheel cylinders and master cylinders with modern seals.

Gord