Join Date: Dec 2002
Location: Saint Louis, Missouri
Re: Solenoid to lock hood?
Actuators could be used but be aware they may want to spring back after hitting full travel in or out after being powered up.
I hooked up a basic actuator like what you linked to with nothing attached to the plunger end and with it starting out with the plunger fully retracted I applied 12 volts to one wire and ground to the other for just a split second like it would be when hooked up to an alarm and the plunger popped fully out but when it hit full travel out it had enough momentum to bounce and go back in some to where it was no longer at full extended travel. I then reversed the power and ground again for a split second and the plunger retracted but then bounced back out a little bit.
When this actuator is fully installed in a car and hooked to the lock mechanism normally it has enough drag on it to prevent this bounce but if a very simple end is attached to the plunger to throw a pin through a hole there may not be enough drag. What you could do is possibly add an O ring or two under the accordian rubber cover to make it harder for the actuators plunger to extend and retract but not so much as to put too much load on the actuators motor and gear assembly.
As far as the old Chapman locks, this style of mechanical hood locks are still out there but getting harder to find and be of a long enough length for the older cars. If you do get one of these, replace the cheap imported relay on it with a good Bosch brand relay. I had one that the relay failed pretty quickly.
1974 Spirit Of America Nova (being restored), 1973 Nova Custom, 1968 Chevy II (Garage Find 2012)
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.