joey4420 Posted February 10, 2015 Report Share Posted February 10, 2015 Waiting for my repair manual and owners manual to come in. So what is this? As you can see the wire is no longer connected. Quote Link to comment Share on other sites More sharing options...
P15-D24 Posted February 10, 2015 Report Share Posted February 10, 2015 Looks like an auto choke. Can you pull back and shoot another pic? Quote Link to comment Share on other sites More sharing options...
Solution Don Coatney Posted February 10, 2015 Solution Report Share Posted February 10, 2015 Do a forum search for Sisson choke Quote Link to comment Share on other sites More sharing options...
joey4420 Posted February 10, 2015 Author Report Share Posted February 10, 2015 Do a forum search for Sisson choke Thanks.... that looks like what it is, now to figure out why the wire was disconnected before I just hook it up to test... Quote Link to comment Share on other sites More sharing options...
Don Coatney Posted February 10, 2015 Report Share Posted February 10, 2015 There are several threads on how this choke works. Contact forum member 39desoto as he has a lot of good information on this choke. Quote Link to comment Share on other sites More sharing options...
_shel_ny Posted February 10, 2015 Report Share Posted February 10, 2015 Before hooking it up, you can clean up the terminal, run a jumper wire (12-14 gauge) from the battery hot terminal, and touch it to the choke momentarily (flash it) to see if it responds. Arm should move to pull, or push (don't remember which way the D24 goes) the linkage to the carb choke. That is done by flashing in case the solenoid is shorted out. (rare) If shorted it will melt the wire. If it seems to respond you can then hold it longer. A few seconds. The choke is wired to the starter, and only gets powered when starting the car. Quote Link to comment Share on other sites More sharing options...
joey4420 Posted February 10, 2015 Author Report Share Posted February 10, 2015 Before hooking it up, you can clean up the terminal, run a jumper wire (12-14 gauge) from the battery hot terminal, and touch it to the choke momentarily (flash it) to see if it responds. Arm should move to pull, or push (don't remember which way the D24 goes) the linkage to the carb choke. That is done by flashing in case the solenoid is shorted out. (rare) If shorted it will melt the wire. If it seems to respond you can then hold it longer. A few seconds. The choke is wired to the starter, and only gets powered when starting the car. Thanks, I will do that tomorrow... done for the night. Headaches suck. Quote Link to comment Share on other sites More sharing options...
DonaldSmith Posted February 10, 2015 Report Share Posted February 10, 2015 Brief, succinct explanation: The Sisson choke unit gets power only when the starter is cranking, and this closes the choke plate partially, while the starter is cranking. The Sisson unit also has a bimetallic spring that partially closes the plate to the extent that the engine is cold, and slowly opens the plate as the engine warms up. Quote Link to comment Share on other sites More sharing options...
_shel_ny Posted February 10, 2015 Report Share Posted February 10, 2015 (edited) edit: Possibly a previous owner was having some sort of starting issues, and cut the wire. Edited February 12, 2015 by shel_ny Quote Link to comment Share on other sites More sharing options...
Ulu Posted February 11, 2015 Report Share Posted February 11, 2015 I just saw a new one on Ebay for $50 and another for $195 and yet another for $295! I'll bet that part cost $1.25 in 1947 Quote Link to comment Share on other sites More sharing options...
desoto1939 Posted February 11, 2015 Report Share Posted February 11, 2015 This is a Sisson Automatic Choke as has been stated from above. Becareful on which sisson choke you are looking at on ebay. There are two different styles. The 49 Plymouth and up willnopt work on your car becasue of the position that the control lever is on that model. The 49 and up are costly as you can see and the early one that you use are also not cheap. Contact me I have a couple. Rich HArtung Desoto1939@aol.com Quote Link to comment Share on other sites More sharing options...
Captain Neon Posted February 12, 2015 Report Share Posted February 12, 2015 I bet a former forum member is the guy asking for $295! Quote Link to comment Share on other sites More sharing options...
BobT-47P15 Posted February 13, 2015 Report Share Posted February 13, 2015 They have gotten pretty ridiculous on lots of prices for old Plym parts. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.