Mercury carburetor help

sturgis 39

sturgis 39

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Attached is a picture of a Mercury carburetor. The threads are kind of weak looking where the fuel line screws in and i can not find a fitting that will work. There is also a another hole next to the fuel line port. I think this is a vacuum line. Does this carburetor need this vacuum line to operate correctly? I cannot find a fitting that will screw into this port.

All information about this carburetor will be appreciated. Somebody said this was from a 49 to 53 Mercury. Does somebody sell rebuilt carburetors like this one?
 

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I have the correct gas line fitting that goes in there,and the vacume line fitting. PM me. ken ct. I also have rebuilt carbs in stock. 49,50 and 51 are all slightly diff. I would have to see the opposite side to determine which one you have.Also a good clear close up of the fitting you have in there now,there are 2 possibilities,i have the bigger one i would have to check on the smaller one,its 1/8" pipe thread. ken ct. Oh i know which line your talking about .The fitting for that one is attached to the line. I may have an extra line with the fitting on it.
 
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The second hole is where the intake tube for the choke heater screws into. The other end of the tube attaches to the passenger side of the intake manifold and passes thru the manifold to the other side where it feeds the choke ('50-'51) with hot air. The vacuum is supplied to the choke by a hole bored into the manifold plenum. If you use a hand choke the second hole can be plugged. This is a pic of the tube that goes into the second hole.
 

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You got it 51 Merc. He can use a copper gas line for this from the earlyier fords.The fitting is correct for the Merc choke tube.I'll have some at hershey also the gas line carb fitting.You wont find those anywhere. Has a very fine thread. ken ct.
 
I have one of them and another carb that no one can identify. The one off the 53 works. The one that I can't find information on is really weard. Kind of looks the one on sturgis 39. I cant find another picture of the one off the 49 Mercury. I need to take a picture and post it here.I have looked and cant find imformation on the weard one ,only a fellow told me it looked loke a aircraft application.IT DID have the long tube going into the intake for the choke.I have the fitting and the tube Sturgis is looking for.
 
Lyle said:
I have one of them and another carb that no one can identify. The one off the 53 works. The one that I can't find information on is really weard. Kind of looks the one on sturgis 39. I cant find another picture of the one off the 49 Mercury. I need to take a picture and post it here.I have looked and cant find imformation on the weard one ,only a fellow told me it looked loke a aircraft application.IT DID have the long tube going into the intake for the choke.I have the fitting and the tube Sturgis is looking for.
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53 Merc looks totally diff. Like the top cover is missing also used in 52. 49 merc has an UPTURNED throttle on it with a ball type connection on it. 50 has a flat downturned bent lever with a hole in it for a "L" shaped rod connection thats held on with a Jeaus clip. This was also used on late 51 but has a divorced choke bolted to the intake manifold. Hope this is clear to you. ken ct.
 
I will take some more pictures today. I have a dail up connection and plan to post them from a friend's high speed. It takes a long time on dial up.


Thanks
 
To add a bit:
These old Holley 885s were used on big trucks & Lincolns too so there are several variations. Truck types usually had a governor so they are easy to knock off. The date of manufacture & model prefix letter can be found stamped into the top most protrusion of the top cover assembly that covers over the accelerator pump mechanicals. The stamps used were very small and many times they get obliterated if the housing gets dented from mis-handling. As far as I know this is the only ID that Ford used for these carbs.

Kerby
 
rotorwrench said:
To add a bit:
These old Holley 885s were used on big trucks & Lincolns too so there are several variations. Truck types usually had a governor so they are easy to knock off. The date of manufacture & model prefix letter can be found stamped into the top most protrusion of the top cover assembly that covers over the accelerator pump mechanicals. The stamps used were very small and many times they get obliterated if the housing gets dented from mis-handling. As far as I know this is the only ID that Ford used for these carbs.

Kerby
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I can ID it from good pics of both sides of the carb. ken ct.:)
 
Friend was not home yesterday so i could not use his high speed internet connection to download more pictures of the carburetor. Maybe today.
 
Here are the pictures of the carburetor. THE ONE PICTURE IS OF MY MODEL "A" WITH A RILEY TWO PORT HEAD. I DO NOT KNOW WHAT THE ONE PICTURE IS. I THINK IT IS THE GARAGE DOOR. I DID NOT WANT TO ERASE THEM BECAUSE THE WHOLE BUNCH MIGHT DISAPPEAR. THE CARBURETOR IS SITTING ON AN ADAPTOR FOR A THREE BOLT TO A FOUR BOLT IN SOME OF THE PICTURES.

I removed the garage door picture.
 

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Suspect that you are trying to use this in a non-stock Mercury application. (it looks like '50-'51 Merc. and is most likely that)
If that's the case you can plug the second hole and rig up a hand choke.
The fuel inlet fitting is another problem for which you have to find a solution.
 

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51 Mercury

Thanks for the reply. What were the major problems with these carburetors? Some people said they were not very good. I plan to install it on my stock 39 ford and tell everybody (mostly chevy friends) a big line about an early throttle body developed by ford. What advantages did these carburetors have over the ford type?

That is cool how you wrote on the pictures!
Thanks again
 
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In good condition with all systems functioning normally, the Holley 885 is not a bad carburetor. My 51 Mercury ran without any major troubles for years with this carb and performed very well. On the minus side, if the castings get distorted from mis-handling or overtightening the hardware, they will leak internally. The leaks are hard to detect since they are covered by the top shroud. I've had to chuck more than a few parts due to this problem. If you accidentally drop them while off the manifold, it can do serious damage to the top shroud distorting it so bad it is unuseable. The fuel bowl is very sensitve to overtightening of the hardware and can also distort so bad you will never stop the leaks from it. If they have a leak they can catch fire which is what gave them the nickname towering inferno to some.

Kerby
 
They do flow aloft of air and these of an adapter will limit this. You could use a Merc intake with some modifications.
 
Thats a late 51,they have the choke assembly bolted to the side of the intake manifold. 50 and early 51 have the choke up on the side of the carb like the 49. ken ct.
 
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