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1921 Studebaker Light Six Thermostat?


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Thanks Stude Light!

 

Just need the Fulton Sylphon Bellows. What later model would work - is it easy to adapt?

 

Can't really work on the car with the cold weather, but Spring is coming... and next year, hopefully a heated garage!

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I have an original working Fulton Sylphon in my Light Six but they are extremely rare. I’ve never seen another one intact and if anyone has one for their car, it is doubtful they’ll give it up.

 

Knowing mine will fail one day I created a backup by buying a 1940s-1950s design and modifying a spare housing I had to accept it.

 

Here is an example of one on eBay

https://www.ebay.com/itm/1952-58-Buick-Dodge-Plymouth-Fulton-Sylphon-Autostat-Thermostat-180-Deg-71FT-NOS/362396231018?hash=item54607fa56a:g:EtwAAOSwaeRbTjZi

 

I put the thermostat in my lathe and cut the top flange diameter down to fit the bore and modified the housing seat area with a file to accept the base. You could also just chuck the housing and cut the bore for the base a bit larger diameter. Then I put a copper ring in to hold it in place. I bought a couple of NOS thermostats and picked the one that fit easiest.

 

Scott

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Edited by Stude Light (see edit history)
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Thanks so much for this info! Seems like something I can tackle. I guess I better pick up those T-stats!  By the way- do you know the model number or part number of the original thermostat?

 

Dave

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Thanks.  I purchased a 180 degree - another thing that goes back on sale some day.

 

Anyway, is that a parts manual I see? Does not look like my "Service Manual" which I find a little disappointing.

 

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The 180 degree will work but the only issue is it gets the coolant closer to boiling before being fully open and allowing full flow.  Personally, I run water with No-Rosion to get the maximum heat transfer benefit, plus it's a lot easier to clean up and won't harm your paint.

 

Yes, that picture is out of my photocopied illustrated parts manual.  The illustrations in the original manuals are closer to photo quality but I don't like cracking those open unless I really need to......saves wear and tear.  My cover and the first few pages have come off the binder in my 1923-25 manual from using it a lot over the years. Here's an example of how they are laid out (Big Six trans). A couple of us have them and are happy to help out with parts identification, although only some of the parts are illustratrated. No reproductions exist of these to my knowledge.

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This is what that original Sylphon looks like. Sorry, I never took a photo of it out of the housing.  It is just a bellows with some alcohol inside.

DSC06847.thumb.JPG.4c5cd03a963743b4176fc49dfdfc0aac.JPG

 

 

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Thanks. I am sure I will have too many questions as I dig into this. I understand from the previous owner that it overheated. Suspected timing issue and I hear there may be different possible distributers and rotors that could cause timing problems - hence overheating. I figure I will start by making sure all the coolant passages are clear and then move on from there as soon as it gets warmer out. I do not remember what he said about which distributor it might supposed to be if the wrong one is on there.

 

If anyone is near northeast PA with one of those parts manuals for the 1921 light six, I will offer to assist in scanning it for free . . .

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Make sure your water pump is flowing.  The bronze impeller is held on to the steel shaft with a brass pin....sometimes the pin will corrode and fail or the shaft corrodes and the impeller flexes the pin and it fails.  You can usually see down the neck where the radiator cap is and see it flow.

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I will have to check on that as well. Looks like I am in for a LOT of work this spring! I noticed today that the distributor cap is cracking due to expanding pot metal portion. Can someone tell me which distributor is correct for a 1921 light six?  is it 626-A ??

 

I don't think I would stand a chance without your knowledge. GREATLY APPRECIATED!

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  • 9 months later...

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