manual switch for 12ht Glow screen

[curious1]

Done lots of searchs. Need advise from someone that has done a manual switch conversion on a glow screen on a 12Ht. FYI- my 12HT is in a 12 Volt FJ60. I converted everything for the most part to 12 volts. Can I use the 24 volt glow screen relays with a manual switch? If so one or both? Will the 24 volt screen still work with only 12 volts? I noticed in a schematic I ran accross that in a 12 volt version both battery wires from both relays going to the same post. The most rear one. Can anyone confirm?

 

[Greg_B]

I have seen one 12V truck that maintained the 24V glowscreen and hooked to one pole. Use a HD relay and momentary switch. I know of a few others that have done this. Longer glow cycle needed, but it works.

Did you switch to a 12V VSV too? Factory, or sourced something else...

hth's

gb

 

[curious1]

I used a VSV from when it was gas. It controlled something in emmissions. It works perfect.

The cruiser runs great and is one of two 12HT conversions I recently finished. They are for customers of mine. I am getting ready to deliver it now, but would like the glow screen to work since he lives in Lake Tahoe. The timer doe's not work and I would like to make the screen manual. I think I should be able to use the original 24 volt relays. I will use a manual switch to trip them with 24 volts supplied by the Solar Converter I have. 12 volts from the battery will then flow through. I was think of using both relays and both poles I just was hoping someone had done this before.

I was able to install the tach from the diesel into the gas cluster. It is powered by the Solar Converter. I switched out the bulb in it to 12 volts to run with the rest of the dash.

I do have one issue with the A.C. How do you get the amplifier to work without a regular type of tach signal? You can't use the tach signal from a diesel. I am thinking of grounding the wire that supplied the signal to the amplifier to see if that works.

Thanks for the input

-George

 

[brownbear]

On your relays(24v). your idea with the solar covertor is sound, being a momentary(intermittent) load, it should not be too much on the convertor. What flows thru the relay for power, either 12 or 24 is not important. its just a switch.

I would be surprised if the coil did not energize with 12v tho. But could cause some contacts to burn if the relay did not have solid continuity.

on the other hand, since it is a customer rig, you could just head to napa and get correct relays running on 12v. Although the idea thru the solar convertors works in theory(or practice) its a waste of available load on the convertor and just may not be appropriate on such a nice install.

Napa should sell some basic relays good for about 40 amps for about 25 bucks. Maybe cheaper.

This is just my opinion, either way your system should work..........

 

[curious1]

I wired up the the relays to trip with 24 volts and than let 12 Volts through. It is working great. I am going to keep an eye on them to see if there are any problems. If there is I will try a Napa part. I figured out how to give my A.C a tach signal using a converter that Dakota digital sells. It takes that diesel tach signal and converts into to a gas type signal that will not only work the A.C. amplifier, but also a regular tach. I will post pictures by tomorrow.

 

[Stone]

George:

If NAPA sells Hella relays, their heavy duty models are as follows:

70A SPST & Diode (12V Coil): Part # 87103

70A SPST (12V Coil): Part # 87110

50A SPST (24V coil): Part # 87113

 

[curious1]

Thanks for the part numbers. If I use these than the only things the converter will be running are the tach and turbo lights. Nice