Cal
So it's not just a matter of finding an ANL holder that will recieve both positive cables and direct them to the starter cable? I would happily take it to an auto elec but would like to avoid getting a tow, although it may be worth it if consequences could be dire
Appreciate the advice Dave, thank you
egads (she/her)
Can you bypass these by directly powering the starter? Then can drive it to an auto sparky
racer1234
First question is why do you have two batteries?
I don't see a reason for it.
The ANL fuse holder gets installed in the cable from the positive of the battery to the starter as close to the battery as feasible. It is rated to stop the starter cable melting.
I would remove one battery. No need for it.
Install ANL fuse + holder.
If there is a lack of voltage at starter replace starter cable with larger wire.
timbo
Probs a good idea to install a starter motor relay if it doesn't have one fitted
Cal
The previous owner told me it needed two batteries to turn over the motor because of the high compression. I hadn't heard of this being a thing before then..
Angus242164
One high capacity battery and a more powerful starter motor, if available, would be a neater solution. In reality, higher compression shouldn't make much difference to cranking speed though.
A number of years ago I bought a '73 Triumph 2000 for $150, spent less than $50 on fixing up the brakes, and sold it for $1000, two hours after putting it up for sale. It was in excellent condition inside and out and drove very nicely for a car of that era.
Cal
@Angus242164 wow, how goods that! Cosmetically, this one is fairly atrocious...
I would love to be rid of one of the batteries, when checking the batteries charge it seemed to be only sapping power from one anyway so the other is dead weight...
racer1234
I did a full rewire on a large american yank tank. 5 metres of wire from battery in boot to starter. 528 cubic inch hemi with enough compression to make over 800hp. Only needs one battery. Get rid of the junk circuit breakers. Make sure those isolater switches are clean and tight and maybe go larger on the cable and should be fine with one good battery. Try without changing the cable first and see how you go. Just getting rid of the circuit breakers should make a huge difference.
Spac
One battery should be plenty.
The two batteries are a poor compensation for:
1. Using undersized power cable to the starter;
2. Not running a seperate earth cable back to the motor (do not rely on the body to be an adequate earth over the length of the car);
3. Possibly a tired/undersized starter motor.
The first two definitely apply in your case.
Get those right any you can make the car simpler, lighter and more reliable.
Cal
@racer1234 @Spac
Thanks for your advice, it was spot on.
Swapped the circuit breaker for an ANL fuse, now running of the single battery. Started up straight away and continued covered a few hundred kms over the weekend driven hard. All went well un till it blew the fuel pump fuse and then later another one for the headlights.. Still progress
