• Hey Guest!
    British Car Forum has been supporting enthusiasts for over 25 years by providing a great place to share our love for British cars. You can support our efforts by upgrading your membership for less than the dues of most car clubs. There are some perks with a member upgrade!

    **Upgrade Now**
    (PS: Upgraded members don't see this banner, nor will you see the Google ads that appear on the site.)
Tips
Tips

TR2/3/3A TR3 - positive earth cable from battery is hot

tdskip

Yoda
Country flag
Offline
Hi guys - taking a break from the other cars only to find a new problem.

I went to crank over the TR3 to get a current baseline on her oil pressure before swapping out the relief spring and ball, and she won't start after a fair amount of cranking. When I went to disconnect the battery I noticed that the positive earth cable was really hot.

That can't be right....
 
Re: TR3 - positive earth cable form battery is hot

Not unusual for it to be warm after a "fair amount of cranking". But "really hot" probably means there is a marginal connection near there, or possibly even the cable itself is corroded/broken internally. Takes several hundred amps to crank the ole TRactor motor, so the least little resistance shows up as a hot spot.

But unless it was cranking substantially slower than usual, I doubt that's why it wouldn't light off. Might possibly indicate a bad starter, but again that would usually be accompanied by slow cranking.

Do you have fuel pressure ?
 
Re: TR3 - positive earth cable form battery is hot

As always, thanks Randall.

I just looked at the cable again and it is cracked under the rubber sheath. I'll have to replace it.

I think the starter is fine, normal/strong cranking.

I'm going to let her sit a bit because I may have flooded her.

Thanks!
 
Back
Top