labradorian70

This is related to my earlier post on my Fury Gauge cluster

see white arrow in pic., looks like a condenser. what is it? Voltage limiter?

these are guage clusters out of late 66 fury's
the gauge cluster on the left if out of my 66 Monaco(canadian version) it never had that cylinder thing mounted to it.
the gauge cluster on the right is a spare that my father(original owner of the car) picked up years ago. not sure what year car it came out of.

the only difference between them is the cylinder thing mounted as shown, and is connected to the +12V input terminal of the fuel gauge.

I checked out the 66 Mopar parts manual and my 66 full service manual for fury and this cylinder thing does not show up in the parts list for the 66 model year. perhaps i was added at a later date. I was curious if it was a voltage limiter but the way it is connected it wouldn't work.

thanks
Glen

labradorian70

i found out on another forum that this is a capacitor(condensor)

moe7404

i think it is to keep static out of the radio. they can go bad. and in some applications the capacity of the cap is important. but my guess is for a radio it is not.

labradorian70

Yes that's what I have been told in the other forum.

Thanks

DDodger

The original voltage limiters worked similar to a turn signal flasher. The constant clicking on/off would have made a "pop" in the radio. All the old Mopars have at least 4 suppression caps in the system.

One is actually internal inside the radio, and usually is a cap/ inductive network. Not normally replacable unless you are a radio tech

Another in or on the alternator, normally inside the alternator on Mopars

The one you found here

The one on the positive terminal of the coil.

(The one IN the distributor is to form the spark and protect the points. It is not for radio noise)

moe7404

i have seen some articals about how to made a 5 volt regular stuffed in the stock housing. summit has the standard brand VRC601 other shops have one with a diff no.

labradorian70

I just ordered this VRC601 on amazon.com, $45 to my door in canada although i have access to all the components to build one, i like that this one is in a housing.

thanks

xaza

That is pretty cool how the capacitor is used. I am in HVAC and capacitors used in my industry are probably more like the one in the distributor. They give additional starting torque to electric motors and capacitance is important.

DDodger

caps in ac are pretty much completely different purpose. those are for phase shift, and capacitive / inductive theory is a whole different library, LOL

for static and noise, the "simple" explanation is that a cap resists change. it charges up to the 12-14V system voltage and does nothing, "sits" there. a static pulse (noise) is a voltage increase, and instantaneously tries to "move the voltage higher" (or lower). the cap "smooths out" this change, turning it into a "gentle bump" instead of a high spike.

xaza

I am still working through this page, learning a lot.
http://en.wikipedia.org/wiki/Types_of_capacitor
I have been doing a lot of research since returning to this site a couple weeks ago. Thanks for not beating the dumb newb.

marty mopar

voltage limiter in the MOPAR part books

here's some of the part numbers:

2258413=3592899 1962-1985

the part will usually have the number on the end of it

I have 33 of them

labradorian70

Thanks

I ended up going with the IVR4 http://rt-eng.com/rte/index.php/RTE_limiter

this is a solid state unit, I have it installed and guages are working fine now.

Cheers
Glen