Electrical Solenoids

Electrical Solenoids

When most of us hear the term noid, we think of devilish little creatures that have been blamed for everything from Gilligan's being marooned to the lack of steel '32 Ford roadster bodies. If the truth be known, and we're going to give it to you whether you like it or not, 'noids are your friends and can perform magical feats, if used properly. Solenoids, that is.

A solenoid is an electrical switch that works on polarity. When current is applied, the switch opens or in this case pushes, and when the current is reversed, it will retract. Street rod builders and customizers have been using a variety of 'noids for years to open shaved doors or decklids since there is no outside handle. For the doors, there is no need to have the solenoid retract, as you are going to close it physically from inside. A button or momentary on switch is all that is needed to activate the solenoid. An excellent button is manufactured by Standard Automotive Parts under PN SSB-1. For a decklid, retraction is necessary, or the lid latch arm--or lock--would remain open after you opened it for the first time. Consequently, a toggle switch with two settings for open and closed would be used. The switch or button can be mounted in any location you choose, either visible or under the dash. The only qualification is that it is relatively easy to access from the driver position.

We are working with Warren Boughn, of Precision Street Rods & Machines, to install electric solenoids in the doors and decklid of a '34 Ford three-window. The installation in the door will be remote-controlled from the exterior, and the final wiring hookup will be done by a professional at an auto alarm installation shop. We recommend that if you want to do the two changeovers covered here that you do the same thing. The decklid shown will be manually controlled by a toggle switch, but if you choose, it can be professionally wired for remote operation, too. Remember, with remote access, your battery must be kept in a sufficient state of charge to activate the solenoids, or you're going to be one really angry person who can't get into his car.

Some fabrication is necessary for these installations, but nothing that you couldn't have done at any machine or fabrication shop--or do it yourself, if you have the skill.

Both of these projects are not terribly difficult but must be thought-out thoroughly before starting. Take your time and do all the fitting first before you drill any holes. If you are not an accomplished auto electrician, have a pro wire the remote and security system. You will already have all the real time-consuming part finished, and the final connections will be a breeze. Now, all you have to do is remember to keep that battery up to snuff.