48 cj2a grounding questions

1945 - 196*, Willys CJ series, questions, discussions, regarding anything related to the post war jeep.®
Post Reply
Posts: 1878
Joined: Thu Jul 14, 2005 7:31 pm
Location: Mt.Vernon, MO (southwest area) Driving the Jeep

48 cj2a grounding questions

Post by 42GPW » Tue Nov 21, 2017 7:28 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
42 Ford GPW (8-11-42)
U.S Army (11C3P2B) 1989-2006
82nd Abn, 1st Gulf War Vet

Steve Webb
Posts: 12390
Joined: Fri Jan 17, 2003 5:40 pm
Location: Fort Myers, Florida

Re: 48 cj2a grounding questions

Post by Steve Webb » Tue Nov 21, 2017 8:16 pm

The only reference to grounding is the engine ground strap from the frame using the bolt that holds the motor mount to a bolt through the mounting plate under the generator/alternator and of course the battery ground to the frame. I think some of the other grounding everything was from mb/gpw because of radios in them for interference. The other grounding lights and gauges etc just get to the body or frame
Stand for the Flag, Kneel for the Cross

G-Lieutenant General
G-Lieutenant General
Posts: 4969
Joined: Sun Jun 11, 2006 12:40 am
Location: Colorado

Re: 48 cj2a grounding questions

Post by Fortyeight2A » Sat Dec 02, 2017 10:33 pm

Just to be sure, I put a ground wire to the body and one to the frame on Ol' Unreliable. I figured it couldn't hurt. This Jeep is neither original nor restored, I just want to make sure things work.
Is it true real Jeeps have flat fenders?
Alone cannot you it resist!

User avatar
- R.A.E.M.E -
Posts: 12381
Joined: Tue Jul 11, 2006 11:46 am
Location: Gold Coast SE QLD AUSTRALIA

Re: 48 cj2a grounding questions

Post by artificer » Sun Dec 03, 2017 12:28 am

1. Battery to frame
2. Frame to engine [engine mounts are insulators]
3. Frame & engine to body.
Make sure all are dimensionally correct for max current they will be required carry.
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.

Post Reply

Return to “CJ Technical Knowledge Base”

Who is online

Users browsing this forum: No registered users and 1 guest