Jump start 6-volt car with 12 volt battery
Posted 16 March 2005 - 05:51 PM
Can I use a 12 volt battery to jump start (via jumper cables) a 6 volt car. Or, am I looking to burn something up. I used to do it on an old (1959) volkswagen I drove in high school, and always wondered what would break. It may take some work to get the 1940 model 51 to run after 20 years of storage. I'll be giving it the greatest chance to start on the first try (new plugs and ignition parts, rebuilt carb, rebuilt fuel pump, clean fuel lines and tank) but that 6 volt will only crank so long without recharging. And, I'll want to crank it for a while without starting to get the new oil worked thru-out the bearings and verify some kind of oil pressure.
Posted 16 March 2005 - 08:26 PM
Hupmobile 1929 Century 8
Posted 17 March 2005 - 01:50 AM
40 56C original restored (driven over 100,000 miles by me
92 Roadmaster Wagon
04 Rendezevous (Mama's ride)
Posted 17 March 2005 - 02:19 AM
Posted 17 March 2005 - 02:21 AM
Posted 17 March 2005 - 04:50 AM
Once the jumper is connected, turn on the ignition and quickly crank the car until it starts. Do not delay or the 12 V could damage the instruments. As soon as the engine starts, disconnect the jumper and jam the lead back onto the 6V battery terminal. If you're lucky, the engine will keep running through this transition (keep the revs up so it will run on the generator during brief time the battery lead is not connected) and you'll be on your way.
Posted 17 March 2005 - 10:01 PM
If breaker points, spark plugs, carburetor and gas pump are ok the car should start easily. Pay special attention to that gas has been pumped and filled the carburetor and that the breaker point are clean and free from oxside.
Hupmobile 1929 Century 8
Posted 17 March 2005 - 11:34 PM
1983 Ford F-150, 4X4
1940 Buick Special 4-dr
1928 Ford fordor
Posted 18 March 2005 - 02:20 AM
Also I'd make sure there was gas in the carb. I'd do this by disconnecting the fuel supply line in a convenient place and hooking up a temporary hose to the line, through which you could introduce gas into the carb.
By the time you have this done, the battery will be sufficiently charged to crank the engine over for starting. There are lots of older 6 volt cars out there running well yet, so don't discount that battery you have till you know it is no good.
John C. De Fiore BCA # 3757
56 Super 56R: acquired September 1974. 69 GS 400: Convertible added in 2003. 72 Electra Limited added July 2014.
78 Estate Wagon added October-2008. 2013 Regal GS acquired Aug 2013.
69 Electra Limited 2 dr. bought 1995 or so, sold in 2007. 95 Riviera added May 1998, sold in 2006.
06 Lacrosse CXL purchased July 4th 2006, and traded in Aug 2013.
"Yes! I'd really rather drive my Buick!"
Member of the UPSTATE NY CHAPTER
check it out at : http://unybca.com
Posted 25 March 2005 - 01:45 PM
23 Buick (the makings of)
29 Larrabee 2 ton truck
36 Ford 1.5 Ton dump
46 Dodge 1.5 Ton WF-32 truck
66 Tempest 2dr post:)
56 Roadmaster Riv. Hdtp
56 RM conv. bad shape
65 olds 98 4 dr
2007 Lucerne CXS
1 user(s) are reading this topic
0 members, 1 guests, 0 anonymous users