Jump to content
Sign in to follow this  
Baddog

Grounding

Recommended Posts

Baddog

In a training class at work today we got into a discussion about grounding.

In a truck the engine is grounded to the frame which is steel. To what is an inboard grounded?

Also, where does the ground from the battery go to complete the circuit?

Share this post


Link to post
Share on other sites
jk13

Truck. Engine and battery both grounded to chassis (and so connected to each other):

++++++++++++++++

Engine Battery

------------chassis---------

Boat engine grounded directly to battery:

+++++++++++++++++

Engine Battery

------------------------------

It's the grounding back to the battery that completes the circuit, not the chassis. The chassis is just a conductor like a wire.

Edited by jk13

Share this post


Link to post
Share on other sites
5inthesun

Yep and it's usually grounded by a very heavy duty strap.

Share this post


Link to post
Share on other sites
LS-One

In the old days of steel bumpers on cars, you could touch the bumpers together and jump start a car with one cable from positive to positive. Not a grand idea though.

Edited by LS-One

Share this post


Link to post
Share on other sites
Baddog

In the old days of steel bumpers on cars, you could touch the bumpers together and jump start a car with one cable from positive to positive. Not a grand idea though.

And absolutely not workable today.

Share this post


Link to post
Share on other sites
MLA

In a boat with no ground plane, alternator grounds to block to complete the circuit and the battery grounds to the block to complete the circuit.

Its funny to see cut ground wires attached to tower mounting bolts.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×