Driving on "Battery"
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Topic author - Posts: 177
- Joined: Tue Jan 29, 2019 10:21 am
- First Name: John
- Last Name: Dow
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Driving on "Battery"
Sadly, with my magneto no longer operational, I'm now resigned to driving my T on battery only going forward. Other than making sure I have a good battery with sufficient charge, what other things do I need be aware of driving this way? Thank you in advance for your help.
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Re: Driving on "Battery"
John, just make sure you switch to the battery position on the switch!
Allan from down under.
Allan from down under.
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Re: Driving on "Battery"
...and you can drive on battery in reverse, too
sorry...couldn't help it
sorry...couldn't help it
Scott Conger
Tyranny under the guise of law is still Tyranny
NH Full Flow Float Valves
Obsolete carburetor parts manufactured
Tyranny under the guise of law is still Tyranny
NH Full Flow Float Valves
Obsolete carburetor parts manufactured
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Re: Driving on "Battery"
You can drive just fine on battery. Many cars did for many years. If your normal top speed is under 40, you can still reach it but it will be a bit slower and may not seem to have the same power. You may have to pay a little more attention to adjusting the spark lever, but it will run fine.
I know the voices aren't real but damn they have some good ideas!
1925 Cut down pickup
1920 Dodge touring
1948 Ford F2 pickup
1925 Cut down pickup
1920 Dodge touring
1948 Ford F2 pickup
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Re: Driving on "Battery"
I have run my truck on battery for years. I have a separate 12v battery (the lights, starter, horn etc still run on 6 v) wired to the 'MAG' position and keep the 6V still on the 'BAT', that way I can be sure of always having spark!
The 12V is 'total discharge' - meaning it is not hooked up to a Generator, however, even on the longest runs over several days I have never had an issue with the 12 V going flat.
I keep the 12V topped up with a battery tender and have never had a problem yet, but do give it a boost on the charger now and again.
The 12V gives a better spark than 6V battery (the magneto kicks out 38V so there is no issue running 12V through the coils). Switching from 'BAT' to 'MAG' (6V to 12V) makes a noticeable change in performance.
All the best,
Adrian
The 12V is 'total discharge' - meaning it is not hooked up to a Generator, however, even on the longest runs over several days I have never had an issue with the 12 V going flat.
I keep the 12V topped up with a battery tender and have never had a problem yet, but do give it a boost on the charger now and again.
The 12V gives a better spark than 6V battery (the magneto kicks out 38V so there is no issue running 12V through the coils). Switching from 'BAT' to 'MAG' (6V to 12V) makes a noticeable change in performance.
All the best,
Adrian
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Re: Driving on "Battery"
As Mark says, the spark lever may need more adjusting.
Eventually the engine or the transmission will decide it's time for a tear-down. That will be an opportunity to fix the mag.
Eventually the engine or the transmission will decide it's time for a tear-down. That will be an opportunity to fix the mag.
The inevitable often happens.
1915 Runabout
1923 Touring
1915 Runabout
1923 Touring
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Topic author - Posts: 177
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Re: Driving on "Battery"
Thank you for all your assurances. Happy driving!!
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Re: Driving on "Battery"
You didn't say what year T you have and if it's equipped with a generator. If it has an operational generator (or alternator for that matter) all you need to do is put the switch n the "BATT" position. If it does not have a generator, be sure you keep the battery your using charged. When I first got my TT running after many years of sleep and not having everything working properly yet I used a 6 volt dry cell battery. It's surprising how long those things last, but be sure to keep a spare handy.
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Re: Driving on "Battery"
I can't drive ON my battery - it is too small.
Sorry I couldn't help myself!
Sorry I couldn't help myself!
NH - Where I used to live - not the carburetor !
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Re: Driving on "Battery"
Along with less engine performance from hot spark with the vibrator coils running full time on such 6v or 12v DC current, coil points will carbon arc and wear faster.
Those trembler coils and points were made for magneto AC juice
Those trembler coils and points were made for magneto AC juice
The best way is always the simplest. The attics of the world are cluttered up with complicated failures. Henry Ford
Don’t find fault, find a remedy; anybody can complain. Henry Ford
Don’t find fault, find a remedy; anybody can complain. Henry Ford
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Re: Driving on "Battery"
Of course what Dan said above is true. Running on DC will cause the points to wear faster than AC as the metal begins to transfer in one direction whereas (as anyone whose played with more modern systems will know) you get a pit on one point contact and a raised section on the other. Since you have no mag the point is moot. No pun intended. Drive/enjoy.
Forget everything you thought you knew.
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Re: Driving on "Battery"
IF I HAD THIS PROBLEM I WOULD INVEST IN A DISTRIBUTOR, BOSCH MADE A GOOD ONE, AND YOU CAN RE SELL IT WHEN ITS NOT NEEDED. ALSO THERE'S A SHIM YOU CAN PUT IN THE REAR MAIN TO TAKE UP THE MOVEMENT ,
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Re: Driving on "Battery"
Dan made a good point. "Quick fix" is swap polarity on the old battery now and again, and keep those points clean.
Given usual T mileage, that has not been an issue for me (yet)
Given usual T mileage, that has not been an issue for me (yet)
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Re: Driving on "Battery"
John, You have the perfect time to get an ETimer and then your car will run better than what you were experiencing before your mag quit. I'm surprised no one else has offered that fix for you.
Richard offered the conversion to a distributor which was a common solution for a inop mag but the ETimer maintains the original T equipment and out performs the Dist system.
Do yourself a favor and check out Mike Kossors E Timer and you'll never regret it or want to give it up.
Richard offered the conversion to a distributor which was a common solution for a inop mag but the ETimer maintains the original T equipment and out performs the Dist system.
Do yourself a favor and check out Mike Kossors E Timer and you'll never regret it or want to give it up.
1912 Torpedo Roadster
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Re: Driving on "Battery"
After about 41,000km of driving over the last 17 years with only 6V, I'm still waiting for the points to wear out. And, top speed is around 75km/h on the freeway. It's all how it's set up.
However, coils I've restored for those who use them on 12V do have a shorter point life. You can tell the 12V users by all the black marks around the points.
However, coils I've restored for those who use them on 12V do have a shorter point life. You can tell the 12V users by all the black marks around the points.