1967-68 Chrysler 55 alternator

[Frank Acampora]

OK boys and girls! here's a new one to me. I have never seen this before so if any of you have information, pass it on.

This alternator is on a 1967 or 68 Chrysler 55 HP engine. It has 24 poles and three taps off the windings. I have never run this engine and don't know how many amps the alternator is good for. I also don't know if it delivers 16 volts like later Force stators.

In the second and third photos, the rectifier appears to be a full wave bridge rectifier.

The mounting screws for the alternator and points carrier are dicked-up (as you can see in the photo) while no other screws or bolts on the engine are thus leading me to believe that this was possibly a retro-fit.



The only alternators I have seen on these engines are the eight pole ones.


Don't make me go to Franz on this! LOL

 

[Nordin]

Re: 1967-68 Chrysler 55 alternator

Hi! Frank
This is factory made alternator and this was on early 45 and 55hp (batteryign. typ) until about74-75. It is a 3phase and the rectifier full 3 phase typ with six bridge diode. I think it deliver about 9-10 amps and it starts to charge at about 1000rpm (believe me, I have troubleshot it). The voltage about 16volts without at battery connected. The battery act as a accumulator for the voltage so i think it deliver 14,5 volt with a battery connected.

 

[Frank Acampora]

Re: 1967-68 Chrysler 55 alternator

So my thoughts were correct. Three phase alternator with full wheatstone bridge rectifier for pulse free DC power.

And, probably a retro-fit from a 70s engine.
Thanks, Nordin.

 

[fucawi]

Re: 1967-68 Chrysler 55 alternator

Standard Delta winding like a car alternator ....3 phase bridge rectifiers availabe cheap as replacements from Global Village ... 3 in 2 out ..less ripple not ripple free

 

[Frank Acampora]

Re: 1967-68 Chrysler 55 alternator

Is there an advantage to delta wiring over Y in an auto alternator? Is it an industry standard or is it just a little cheaper to make?

And while we are at it, I read a long time ago and forgot: There is a specific engineering reason why all auto electrical systems are standardized at negative ground. I think it had something to do with electron flow. Refresh my memory please.

 

[fucawi]

Re: 1967-68 Chrysler 55 alternator

yes frank ....they were originally all positive earth as the spark jumps from centre to side electrode in the Spark plug. Less voltage required , so as the electrons go neg to pos they thought the body had to be positive .....Unfortunatly that made the body rot more so they changed to neg earth about 1965 which co incided with alternators which were cheaper to make neg earth.. It is therefore common practice to have the primary neg ground and the secondary for the plugs positive ground

.Some alternators are star some delta

The mistake in "current" direction was made by a french man called Du Fay ...so we add that to the other french mistakes ...

Killed Diana....ambulance parked up 200 yds from a hospital ..died in the ambulance
Crashed concord ...over filled the fuel tanks..too heavy
Crashed the air france jet .....failed to fit the recomended speed sensors .....

 

[Frank Acampora]

Re: 1967-68 Chrysler 55 alternator

Let's not forget DeGaul and the Maginot line! What about the Citroen? Who would want to buy a car that looked like that? Ok--Ok-- It did have air suspension.

 

[chrisireland]

Re: 1967-68 Chrysler 55 alternator

Gents,
You guys sound like you really know what you are talking about. I just got a '67 Chrysler 55HP (Model 5572), seems to be in good shape, was running last year, and I'm planning on getting it running. The guy before me had a regular car battery used to start it. So to start off I bought a marine deep cycle, however I don't want to hook it up just yet, cause the "purple generator wire" that is attached to the distro block, then changes to a blue wire isn't attached to anything. It's just sitting lose, still with the ring terminal attahed. The previous owner wasn't sure where it went. Are you guys able to point me in the right direction please? I don't want to connect the battery until I'm sure I can charge it.
Thanks