Was wondering if anyone knew what the normal output voltage should be on an instrument voltage limiter. I believe I have a bad one on my 68 Super Bee that has me chasing my tail. I'm running a 160 degree thermostat and have a recored radiator in place but still during complete warmup and driving am getting in the 200 degree range on temp at the gage. I notice also my oil pressure gage seems to increase as well as I drive which is odd and really is what leads me to this. Again reading the temp gage it shows my thermostat opening at about 190. Another clue. I've tried 2 thermostats, 1 used 1 new and they perform the same. Also are these available in the aftermarket? Mine would be the 3 prong not the bolt on Ebody style. Thanks.

If memory serves, the stock limiter switches 12v on and off to an average of 5v.

Try here for a solid state voltage limiter:

http://www.rt-eng.com/mediawiki/index.php/RTE_ABlimiter

I've been using the e-body style with success.

if both temp and oil pres gauge go up and down together like that, i'd say the voltage limiter is sticking pon. get the solid state one fr rt eng. should work out for you

go to radio shack get the parts to make one better then the rt eng

Has anyone used the RTE limiter linked above? Looks like a nice piece on their website but I would like to see some feedback before spending 50 bucks.

50 bucks? Ouch!! I'm too cheap I guess. I took mine apart this morning and found the wire wound part of the contact was a little burned as it made contact with the lower set. I took some emery cloth and cleaned those up. Got about 62 ohms across one of the terminals to the case thru that wire wound contact. The spare E body one I had read about that so I think I'm good to go. Put the little insulator board back in the can and hooked her back up again. Seems to work much better. My gages read much closer to what they should now. I notice Year One has an aftermarket one for about half that price. Seeing that, I tried the local NAPA but the guy I talked to didn't have a clue. I bet it's out there somewhere. 'O' Rielly's or someone like that maybe.

mine fryed radio shack parts less money work just fine

Get Engauged...

http://www.allpar.com/history/mopar/electrical2.html

that would be it dont waste $60

i built mine 15 years ago. so far so good

Recall what value of resistor you need to get the correct readings? Wattage needed also. Was going to look into a 1 watt precision resistor for that. I assume resistor to replace the coil of wire that has about 62 ohms to ground inside the little can. At least mine does now but I suspect that isn't quite right. After driving a while Saturday my gages seem to read a touch low now. Were I would expect to see my temp at 160 it's about 150. So my resistance is still a little off.

I see. Different approach than just using a load resistor to pull the voltage down. Wonder if anyone on the board here has access to that drawing. I've kept all my Mopar Muscle mags from way back when and probably have what you are talking about. Just a matter of finding the article.

Found it ! An old Moparts blog from back in 07. A couple of different ways to make one.