12v starter on 6 volt system?

can a 12 volt starter be used on an older 6 volt system?

 

Do you mean your still running a 6v battery? If so, I wouldn't think it would have enough power to spin the 12v starter. Or if it did it might not spin it fast enough to start the Jeep.
Keith

 

As far as I know you can run a 6v on 12 v but not vice versa. You risk burning out the solenoid and the starter itself

 

I think you'll be disappointed with cranking speed if you run a 12V starter on 6V. You'll draw half as much current as it's designed to, and I predict it'll run pretty slow.

You can run a 6V starter on 12V, and it will run fast, but you'll make 4x as much heat as you would at 6V. However, I've heard that you can get away with it on a 6V to 12V conversion.

 

The reason i ask is i have a 12v starter for sale on ebay for a 3b and someone asked me. I would think that it would run slow but wanted to see what you guys thought. My 2a is 12 volt and i think its a 6 volt starter and it works fine. He also said the drive is different im not sure what he means by that but id venture this isnt the starter he wants

 

Just tell em "this is a good excuse to convert to a 12 volt system" R)

 

is there a way to tell if the starter on my 2a is a 6v? Didnt all 2a's come with 6v? So if its a 12v it should say on it since it would be aftermarket like the one im selling. Dont some starters actually say they work on 6 and 12? heres the auction for it theres pics of the data plate http://cgi.ebay.com/ebaymotors/ws/e...STRK:MESE:IT&viewitem=&item=260164325676&rd=1

 

It wont work, anytime my 12 volt battery drops to around 8 volts it wont turn the motor over.
those starters should be available in both 6 and 12 volt designs as that motor was used for quite a few years. I thought most of those starters were Prestolite. That starter looks like the one in my F4-134

 

I re-read your post, if you are asking if the starter on a F4-134 and a L4-134 will interchange the answer is no. They are completely different in the area where they bolt to the block and the Bendix drive is different

 

Since many L134's were built with the later style (large frame starter mounting) bellhousing the staement above is incorrect. The late CJ3A, DJ3A and M38 all had the F134 style bellhousing.

The best thing to do is determine what you actually have first. Which bell is easy. Early bell mounts the small frame starter with two 3/8" bolts and late bell mounts the large frame starter with two 1/2" bolts.
The ring gears came in three flavors, 97, 124 and 129 tooth. The starter pinions came in two flavors, 9 and 10 tooth. 10 goes with 97 and 9 goes with both 124 and 129.

The list of starters is long.

The only way to determine without any doubt weather a mounted starter is 6 or 12 volt is to have the starter disasembled and examined by a shop. Of course if you are satisfied with what the tag on the starter says you can forgo the examination with a small degree of risk. On the other hand if you bought the starter new and the same tag is on it then you are quite safe.