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Drew Kreidelcamp

1932 Cadillac V12 carburetors

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My brother's 1932 Cadillac V12 has downdraft carburetors. The manual only shows updraft carburetors for this engine. Were these options for 1932 or were they installed as aftermarket partsdsc00443fl.jpg

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These downdraft carburetors look late 1930-1940'ish to me.. The updraft carburetors that I believe are correct for a 1932 will say "12" on them and will be marked right and left. While they look the same, they are jetted differently.

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After looking over the intake manifolds and carburetors, it appears that this is a retrofit modification that could have been done in the 50's. The intake manifold must have been modified for the installation of Carter YF carburetors and the kit included a lower linkage plate which covered the lower updraft intake port.dsc00516t.jpg

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Definitely a retrofit, original carbs were updraft Detroit Lubricator Model 51's with hidden linkage and large firewall mounted air cleaners. Very hard to find and very expensive if you do.

post-51036-143141853252_thumb.jpg

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I found 2 Detroit Lubricator downdraft carburetors in the trunk of the 1932 Cadillac today. These must have been part of the original retrofit that could have been done in the 30's. These were replaced later with the Carter YF carburetors.dsc00525f.jpg

Edited by Drew Kreidelcamp
restore image (see edit history)

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My experience with Detroit Lubricator carbs was all bad and the consensus was they were archaic in 1932. The car should run fine on the downdraft carbs assuming they are the right size for the engine and the linkage is synchronized. Where is the fuel pump? The fuel line setup looks kind of scary...

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Some time in the past, a previous owner removed the mechanical pump with a hammer. All that is left is the flange and a blocking plate on the engine block. An electric pump was installed in the storage area next to the left sidemount spare. The fuel lines are a mess and will have to be replaced. If an original style mechanical pump can be found, it will be reinstalled. If not, it may be necessary to use an electric pump. It might be interesting to see how well the engine runs with the Carter carburetors before any alternatives are considered.

Edited by Drew Kreidelcamp
wording correction (see edit history)

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Talk to Mike Casella at Then and Now Automotive - Antique Auto Parts Cellar - about the fuel pump. He rebuilt mine when I had the 32 and did a great job, not sure if he can supply the whole pump but he could probably steer you in right direction. You should see if it runs at all before going too far.

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Thanks TexRiv_63 for the tip on the Antique Auto Parts Cellar. It might be a while before any attempt is made to start the engine. Although it has been stored indoors for the last 37 years, the engine will not turn over. It may be necessary to remove the heads and oil pan to check for corrosion first.

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On ‎6‎/‎6‎/‎2019 at 4:13 PM, Danny Russum said:

We have a Detroit Lubricator downdraft carburetor for v12 Cadillac.  Model 51, type r-13-2.  Make offer.

Can you post some pictures of this  "Detroit Lubricator model 51, type r-13-2 downdraft" ?

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