Manifold heat control package for 48 DeSoto

[MarcDeSoto]

I'm missing some parts for my manifold heat control valve, like the cover and some other parts.  I was lucky and found an NOS Manifold Heat Control Package part # 1316 267.  I also found a manifold blow up from my P-15 Parts List.  But I still don't know how the parts fit together.  Does the small bolt that goes through the cover require a nut?  I assume so, but no nut was in the box and I don't see a nut in the blow up or the Parts List.  How is the stop put on and what way does it point?  Where do you put the lock?  What are those four pieces that look like bushings, two bushings and two rings?  

 

 

[DonaldSmith]

Keith B7 posted a video on the heat riser, November 14, 22.   I posted a comment that the spring seems counterintuitive.  When it heats, it coils tighten, but this created a slack, allowing the plate to fall flat, in the hot position. 

[MarcDeSoto]

Keith's video talks about the basics of how the thermostatic spring works.  He doesn't mention the parts I'm talking about. And it didn't look like he had the stop, or the lock, or those bushings.  Since the blow up doesn't show the bushings, I'm assuming they are for something else, like re-bushing the rod bore in the ex. manifold.   Either his manifold was missing them, or a 38 car didn't have them.  

[desoto1939]

Yes the bushing are used in the manifold and the rod that holds the flapper pivots on these two small bushings.

 

Rich Hartung

[harmony]

6 hours ago, MarcDeSoto said:

I'm missing some parts for my manifold heat control valve, like the cover and some other parts.  I was lucky and found an NOS Manifold Heat Control Package part # 1316 267.  I also found a manifold blow up from my P-15 Parts List.  But I still don't know how the parts fit together.  Does the small bolt that goes through the cover require a nut?  I assume so, but no nut was in the box and I don't see a nut in the blow up or the Parts List.  How is the stop put on and what way does it point?  Where do you put the lock?  What are those four pieces that look like bushings, two bushings and two rings?  

 

 

I'm going to assume that you're assembly is the came as my C38 ('48 Chrysler)  If so, yes, there is a nut and it's a square nut and it sort of stays in place, so you just hold your finger against it until the bolt threads start.  After that it's fixed  in place and it will stay there without turning.   I'm guessing that you want your car to be as authentic as possible.  Because you're really not going to have a need for this gadget there in California.  You're fortunate to have an NOS one though.  I got my replacement spring from AB and someone in China, decided to assemble the bimetal pieces together backwards.  It was wound the right way but it worked in reverse.  It took a few head scratches to figure that one out for sure.

[MarcDeSoto]

I bought the AB spring also, but you can bet I'm going to use the NOS MoPar one instead.  MoPar made in Detroit beats China junk every time!  Does anyone know what the stop does?  Keith show the crimp on the spring going on the shaft, but I wonder if it is supposed to go on the stop?  I saw the square nut on Keith's valve, so I bought a 10-32 nut, but it's a hex head.  I guess it doesn't matter.  I think the lock goes on the bolt like the stop does since it has the hole.  It must be there to hold the cover on?

Edited March 3, 2023 by MarcDeSoto

[MarcDeSoto]

I will bet that the tough material on the stop is pure asbestos!