48 cj2a grounding questions

1945 - 196*, Willys CJ series, questions, discussions, regarding anything related to the post war jeep.®
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48 cj2a grounding questions

Post by 42GPW » Tue Nov 21, 2017 7:45 pm

Okay I have a 1948 cj2a. 12 volt. I cannot find any information on all the grounding locations. But when I go to images I see where guys have grounded everything including the muffler pipe, to the fuel lines. I do not want to go to that extent. What are the major areas that I need to ground? i e, engine ,chassis, body, Etc

Matt R
48 cj2a
U.S Army (11C3P2B) 1989-2006
82nd Abn, 1st Gulf War Vet

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Re: 48 cj2a grounding questions

Post by artificer » Tue Nov 21, 2017 11:03 pm

Always ground battery to frame then ground across the engine mounts between the frame & engine, plus ground between the frame & body. Make sure the grounds are adequate dimensionally for your 12V system.
John GIBBINS Member Institute of Automotive Mechanical Engineers [Ret], ASE Master Medium/Heavy Truck & Auto Technician USA -2002 Licensed Motor Mech NSW MVIC 49593 Current 2015
Understand how system parts interact with one another. GOOD parts can then be established & the NOT GOOD problem/s part/s isolated for repair or replacement.

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Re: 48 cj2a grounding questions

Post by Wolfman » Wed Nov 22, 2017 8:18 am

The jeeps that had everything grounded to everything else was the " suppressed " jeeps.
Static build up in the different jeep parts emitted radio signals ( static ) that the other side could pick up with radio listening equipment. Not a good thing when you are trying to be stealthy. By grounding everything, it helped to considerably reduce this static.
This not necessary on your daily driver.
Just do as John said and life will be OK.

Foot Note: See you are back in OZ, John. Did you have a good trip ??
Mike Wolford
Comm./Inst. SEL
AOPA ( 44 yrs)
EAA ( 44 yrs)
4th Inf. Div. - 5th Inf. Div. - 2nd Armor Div. - CIB

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