USMC Lube Chart Mini Poster Print
Rare USMC Lube Chart for the WW2 1/4-ton truck.
AVAILABILITY: In Stock, will ship in 2 business days
Product Number: 140116022 Click the link to order or order TOLL FREE (US) by calling the number at left and giving the operator the product number.
Like a poster — only smaller! Our high quality one page prints are printed on glossy, 12 point paper and measure 11″ x 17″.
July 27, 2016
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July 26, 2016
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a. Although the five circuits of the carburetor have been treated independently for the
b. The interdependency of the circuit is not emphasized to add technical confusion to the mind of the service man, but rather to show that, for the absolute precision operation, of which the carburetor is capable, all five circuits must be carefully serviced. No snap judgment should be made in diagnosing carburetor trouble, and no “favorite” should be played when circuits are serviced.
Find out more about the early jeep history in – Jeep – Its development and procurement under the Quartermaster Corps, 1940-1942
July 25, 2016
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a. Function. These carburetors employ a manual type choker illustrated in the figure above. When the choker is used, the mixture is enriched by cutting down the amount of air admitted through the carburetor. These carburetors use a choker valve with a semi-automatic feature, the choker is connected to the operating lever by a soft spring, the choker valve is also mounted off-center in the air horn. The incoming air tends to push the choker valve open (the longer section of the choker valve being on the lower side of the choker shaft), and the spring action tends to hold choker valve closed. Thus the. valve is allowed to “breathe” with the engine, which tends to lessen the sensitivity of the choker control. In addition to this feature, a poppet valve is provided in the valve to allow inward relief and hence lessen the danger of over-choking when the engine starts to run. The choker and throttle levers are connected by the choker link, which opens the throttle slightly during the choking period.
Find out more about the WW2 jeep in – The Complete WW2 Military Jeep Manual
July 24, 2016
Operation of the Choke Circuit
b. Chokes are of two types; manual and automatic. The WO Carburetors described herein employs the manual type. The manual choke mechanism in the conventional carburetor consists of a valve mounted on shaft in the air horn of the carburetor, operated by an external lever attached to the shaft. Manual operated choke valves of this type usually have a semi-automatic feature which prevents over-choking after starting. This feature is accomplished by spring-loading, either all or half of the valve, or by incorporating a spring-loaded poppet device in the valve. Some models use both means to improve choke action.
You can find out more about the WW2 jeep inner workings with this book – The Complete WW2 Military Jeep Manual.
July 23, 2016
A girl’s got to watch her figure. And back in the day the Army was watching the weight of the jeep.
Compared to today’s Jeeps the WW2 jeep was pretty light weight.
Do you have the manuals? It’s in there. IF you don’t have them yet then look at this – General Stats.
173+ megabytes of jeep & related info.
July 22, 2016
When you put your combat rims together you should use a torque wrench and set the bolt to 60-70 ft. lbs. But hey be sure set them ALL to the same torque reading!
July 21, 2016
Is Oil Viscosity a Concern?
Increased viscosity leads to increased operating temperature which is not good for either your engine or your transmission (or other mechanicals). That’s why it is best to use the viscosity recommended by the original manufacturers. For example for the L-134 engine use 10 weight in the winter and 30 weight during the summer…or using modern oils you might consider using 10w30. For the transmission, transfer case and differentials use 90 weight during the summer and 80 weight during the winter.
You might be interested in Military Maintenance for MB/GPW Jeeps 1941-45 which has a lot of WW2 jeep or period related topics that might be helpful to you in learning all about the jeep.