thinking of converting to 12v

petehoovie said:
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you might want to check the date codes on those good "old" bias plys since you said you plan on traveling to Ohio. Tom.
 
On my 41, there is an earth cable from the battery to the engine head. On the same headbolt is an earth cable to the firewall.
 
update...

as i mentioned at the outset (i think), i bought car with 8v battery installed, then bought a 6v battery, installed it and it wouldn't turn the motor over at all.

so, as recommended (thanks to all!) subsequently, i bought a set of 00 sized battery cables. i received them yesterday.

today i removed the 8v battery and cables. removed massive amount of paint on firewall around the stud where the restorer chose to make the ground connection. and installed the 6v battery and cables.

the 6v battery will now turn the engine over at sufficient speed to start and run the engine. yeah!

the motor to chassis/body ground wire also suffers from the same deficiencies (paint on and around its firewall stud, and thin grounding strap) that the battery ground wire suffered, and will be addressed as soon as i receive that 00 wire. so should be getting back a bit more voltage to the starter.

thanks for all the help. glad to get rid of that 8v battery... :)
 
My '47 was converted to 12v before my ownership. Only problem I ever had was the darn Pentroonix Distributor module that came in it. Any voltage spike burned-out the Pentronix very expensive modual. My engine would die when driving away from home. Argh ! Working with the then expert on electronic ignitions Jim Lindner didn't fix th eproblem. So I had Charle S. convert the distributor back to stock poionts and no more problems. Otherwise - I mention an Old-Timer's "trick" and that is to route the battery ground directly to the starter motor bolt and then a cable from engine block to body. I ensure good grounding I added a second ground cable from engine block to frame.
 
Drbrown said:
My '47 was converted to 12v before my ownership. Only problem I ever had was the darn Pentroonix Distributor module that came in it. Any voltage spike burned-out the Pentronix very expensive modual. My engine would die when driving away from home. Argh ! Working with the then expert on electronic ignitions Jim Lindner didn't fix th eproblem. So I had Charle S. convert the distributor back to stock poionts and no more problems. Otherwise - I mention an Old-Timer's "trick" and that is to route the battery ground directly to the starter motor bolt and then a cable from engine block to body. I ensure good grounding I added a second ground cable from engine block to frame.
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ha! i just started a thread asking opinions on just that very thing!!!
 
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