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1938 lasalle carburetor

Started by DAVID E, February 23, 2017, 09:52:15 AM

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DAVID E

On a 1938 Lasalle is the carburetor a carter or a Stromberg? and is there two different lengths of air filter assemblies?

Fred Pennington 25635

David, The parts book shows a Carter WDO-392S for 38 La Salle.
It only shows one part number on the air cleaner for La Salle.
But shows 4 different part numbers for various models.
Carburetor should not make a difference on the length of the air cleaner.
The intake horn is the same size on both the WDO carter and the AAV Stromberg.
They are close to the same height and brand of carb doesn't change the location.
I have had both brands of carburetors on my 40 using the same air cleaner.

Hope this helps

Fred Pennington, CLC 25635
1940, LaSalle 5019
1940 LaSalle 5019 parts car
1968 Ford Bronco
1973 Mustang Convertible
2012 Shelby GT500

Tom Beaver

As Fred said the said the Carter WDO 392S was used on the 38 LaSalles, The Stromberg AAV-25 carburetors were supplied on 38 Cadillac automobiles, except for the 90 series V16 which used two different Carter carburetors (right and left bank).  The Carter WDO 460S is listed as a replacement carburetor for the LaSalles.  The air cleaner is year specific and will fit either Cadillac or LaSalle.

Tom Beaver

DAVID E

I have two different air filter assemblies. Notice one has a longer drum and a longer sleeve to mount over the carburetor which is longer, Also it doesn't have the hole in the back for the drain tube.The other one has a short drum and shorter sleeve. has a hole for a drain tube
With the carburetor, I have on, the shorter one hits against the carburetor, But of pictures I have seen the smaller, may be correct?

Steve Passmore

Not a drain tube David. Its the early attempt at PCV,  A tube connects to the valley covers on 37 and 38.
Steve

Present
1937 60 convertible coupe
1941 62 convertible coupe
1941 62 coupe

Previous
1936 70 Sport coupe
1937 85 series V12 sedan
1938 60 coupe
1938 50 coupe
1939 60S
1940 62 coupe
1941 62 convertible coupe x2
1941 61 coupe
1941 61 sedan x2
1941 62 sedan x2
1947 62 sedan
1959 62 coupe

DAVID E

that's correct I Miss spoke steve. Thanks

Steve Passmore

I might be able to shed a little light on this air cleaner thing. After looking through my stock I have found different air cleaners even than the two you have David.  On the 37/38 that carried the Carter carburettor the fuel supply fitting on these carbs is at the front so the neck had to be longer to clear that.
Steve

Present
1937 60 convertible coupe
1941 62 convertible coupe
1941 62 coupe

Previous
1936 70 Sport coupe
1937 85 series V12 sedan
1938 60 coupe
1938 50 coupe
1939 60S
1940 62 coupe
1941 62 convertible coupe x2
1941 61 coupe
1941 61 sedan x2
1941 62 sedan x2
1947 62 sedan
1959 62 coupe

DAVID E

So you saying steve, they had few different models that were used on a 1938 LaSalle? Is it because of different carburetors or manifolds that were offer?
As of all the pictures I saw the shorter one was used the most, I have not seen a picture of the longer one.
The short one is bigger around and it hits the front of my carburetor. The longer one fits perfect, But I just trying to find out what is the correct fit for that year, If it is the shorter fat one, what will I have to change to get there?

Steve Passmore

I think the short fat one would need a carb with rear fuel fitting and the longer slim one would be able to fit a carb with front fuel fitting. I also have a air cleaner which is a fat one but with a longer section to reach over the carb. There seems to be many different types depending on the year and model.   What carb do you have on there at present?
Steve

Present
1937 60 convertible coupe
1941 62 convertible coupe
1941 62 coupe

Previous
1936 70 Sport coupe
1937 85 series V12 sedan
1938 60 coupe
1938 50 coupe
1939 60S
1940 62 coupe
1941 62 convertible coupe x2
1941 61 coupe
1941 61 sedan x2
1941 62 sedan x2
1947 62 sedan
1959 62 coupe

Steve Passmore

Your right Art, Theres no question its original. The one with the vent tube is defiantly 37/38. I don't think I said otherwise did I?  I have had two 1938 cars, Cadillac and LaSalle and both had it.  All I'm saying is the long neck model would clear a front fuel supply fitting and the short one would not so it would fit a later year with rear supply and no vent tube..
The originals were AA 25 (there's no V by the way) and certainly were updated by the AAV 26, a much better carb in my view. Internals in the throat are very different. I have both here on the shelf but I still can't get my head around what's stated in the shop manual that the LaSalle could have either the 1" Carter or the 1-1/4" Stromberg. That makes no sense.   When you say you fitted the AAV 26 to your car and it ran fine, did you take it on a 100 mile run through all conditions or just run it in your driveway?
and last question, what size carb did you remove prior to fitting this AAV 26?
Steve

Present
1937 60 convertible coupe
1941 62 convertible coupe
1941 62 coupe

Previous
1936 70 Sport coupe
1937 85 series V12 sedan
1938 60 coupe
1938 50 coupe
1939 60S
1940 62 coupe
1941 62 convertible coupe x2
1941 61 coupe
1941 61 sedan x2
1941 62 sedan x2
1947 62 sedan
1959 62 coupe

Tom Beaver

David, I think that neither one of your air cleaners is correct for a 38 LaSalle.  Attached is a picture of an air cleaner which was taken off of a 38 LaSalle, the cylindrical section is 8" long and the portion that extends over the carburetor is approximately 4 1/2" in length.  This may be of some help but I can't guarantee that Cadillac didn't use more than one supplier which could mean slight difference in configuration.

Tom Beaver

Steve Passmore

Why would you say neither of David cleaners are correct Tom?  Your picture looks like the one David has in his picture with the vent tube at the back and it looks the same as Art's.    I have also had time to get my 38 down off the ramp and it's the same as mine (pictured).  My car is carrying the small Carter with the fuel supply at the front so now I'm sure these longer necks were for that reason.   As this vent was only used for two years we can eliminate 1937 as that has a bracket provision on the rear of the cleaner to bolt the horns on to. So David, the one with the vent is correct for your 38.
My 38 Cadillac had a Stromberg with rear fuel supply but still carried the same air cleaner.
Steve

Present
1937 60 convertible coupe
1941 62 convertible coupe
1941 62 coupe

Previous
1936 70 Sport coupe
1937 85 series V12 sedan
1938 60 coupe
1938 50 coupe
1939 60S
1940 62 coupe
1941 62 convertible coupe x2
1941 61 coupe
1941 61 sedan x2
1941 62 sedan x2
1947 62 sedan
1959 62 coupe

DAVID E

Great. The longer one it is. Thanks!

Tom Beaver

Steve, your air cleaner looks like mine and so does Art's, but the one of David's that has the vent tube out the back does not look correct to me because the vent tube has an elbow in it, rather than a straight pipe with a screw clamp on the end.  The fitting needs to be straight so that the end of the tubing from the rear lifter cover can slip into the screw clamp.  And the tubing is straight because it has to clear the exhaust manifold crossover pipe.  I can't see a vent pipe connection on the other air cleaner in the picture at all, maybe it's there and I don't see it because of the angle of the picture.

David, you need to put a carburetor on the the intake manifold and try setting the air cleaners on it and see if anything fits and will mount to the front support bracket in a level position.

Tom Beaver

Steve Passmore

A good point about the bent tube Tom but in reality it can't fit anything else. This early vent system was not continued.  The shorter cleaner is for the later models as it won't clear the early carburettors.
Steve

Present
1937 60 convertible coupe
1941 62 convertible coupe
1941 62 coupe

Previous
1936 70 Sport coupe
1937 85 series V12 sedan
1938 60 coupe
1938 50 coupe
1939 60S
1940 62 coupe
1941 62 convertible coupe x2
1941 61 coupe
1941 61 sedan x2
1941 62 sedan x2
1947 62 sedan
1959 62 coupe

DAVID E

#15
I see that on Toms & Steves pictures of their air filters that the port is straight out the back, Were mine has a ninety-degree elbow and faces downward and also has a hole on the side. I mounted The longer air filter assembly on my car and it would fit but I think the air cleaner doesn't have the correct port on the back for the vent tube

Steve Passmore

Just put a flexible pipe on there. Or cut off the elbow and leave just enough to take a clip. It'll work.
Steve

Present
1937 60 convertible coupe
1941 62 convertible coupe
1941 62 coupe

Previous
1936 70 Sport coupe
1937 85 series V12 sedan
1938 60 coupe
1938 50 coupe
1939 60S
1940 62 coupe
1941 62 convertible coupe x2
1941 61 coupe
1941 61 sedan x2
1941 62 sedan x2
1947 62 sedan
1959 62 coupe

DAVID E

I was thinking the same thing, the only thing is that I will have to plug off the side hole and the four holes in the back that some one drilled out, also the top is crushed.
I would like to find and replacement for it,

Steve Passmore

#18
Do the 4 holes in the back have factory captivated nuts??  If so, then the cleaner is for a 1937. If it just looks like they were just drilled out then wanted to fit the 37 horns by the sound of it.
The hole at the side is a bit of a mystery though.
Steve

Present
1937 60 convertible coupe
1941 62 convertible coupe
1941 62 coupe

Previous
1936 70 Sport coupe
1937 85 series V12 sedan
1938 60 coupe
1938 50 coupe
1939 60S
1940 62 coupe
1941 62 convertible coupe x2
1941 61 coupe
1941 61 sedan x2
1941 62 sedan x2
1947 62 sedan
1959 62 coupe

DAVID E

yes, there were horns on the back that were for 1937. I will go the forum page to buy to see if anyone has the correct air filter assembly for sale