Re: 47 Clipper R9 OD

Posted by HH56 On 2011/8/16 17:17:28

3 and 4 at the solenoid are both coils. 3 is the hold in coil and is connected directly to ground so that reading is probably OK but seems a bit high. 4 is the heavy pull in coil and it does go thru a contact to ground. The contact is closed with the solenoid in the normal off position and you should have little to no ohms or almost direct short to ground. The contact's purpose is to open the pull in coil once the solenoid is engaged. That may be your problem--either the contact has burned or pitted & is open or the coil has burned out because the solenoid was energized but could never engage and open the contact. Servicing and cleaning the contact was a normal maintenance procedure.

Removing should not result in a gush of oil. When you test the solenoid, 3 and 4 both have to be connected at the same time. 3 can't pull in against the spring alone so 4 does the work. As soon as the solenoid plunger is out, the contact opens and releases that coil & that is where 3 comes in to play--holding. Without 3 the solenoid will "machine gun". Not remembering any ground wire at the transmission but maybe someone added one. Usually it just gets ground via all the metal in the car.

If you open the solenoid, the 4 terminal screws have to be completely removed when trying to take off the top cover half.

Here is a different year schematic showing the solenoid and relay contacts better. Have you got the Electromatic training manual available on site?

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