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29 auburn electric fuel pump & brake questions
- G-T
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- mikespeed35
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CORDiallyMike
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- balinwire
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I found running the auto-pulse and the mechanical in my 812, they will give plenty of fuel and can run on either one alone, I was considering a fuel regulator. I use a cut off electric switch on dash once its running. The engine can be very difficult to start after prolonged running, possibly from rich mixture, just baffles me. I have found in the prewar cars the pumps are fine except the alcohol will remove the shellac that they used to coat the carb floats and gaskets on assembly. They and the auto-pulse will leak with 10% alcohol, I have also seen carb floats dipped with paraffin repairs. If the pumps are disassembled and modern gasket sealers are used and the diaphragms are not perforated, they should be reliable. Also it is important to check the float needle & seat.
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- mikespeed35
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I talked to Carter eng. about running a 12V pump on 6V and he told we that this pump ran on 6V would run forever. He said it was designed as a 6V pump to start with. I have never felt it to see how hot it gets. It must be used with a filter before the pump because of very close tolerances internally.
CORDially Mike
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- AceCollins
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1934 Auburn 652Y Four-Door Sedan
1936 Cord 810 Westchester
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- Josh Malks
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Keep the good ideas coming!
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- mikespeed35
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I use a rotary fuel pump No. P60504( a NAPA No.) This is a 12V pump but I run it on 6V and it puts out 2 1/2 pounds pres. which is all the pressure you need. This pump should be mounted as close to the tank as possible. I then remove the arm on the mechanical pump, put a blocking plate between the mech. pump and the block. I run the fuel through the mech. pump just as you would a working pump. I run the electric pump all the time and the mech. pump is only a dummy pump. Because the rotary pump does not have a dia. there is no problem with alcohol attacking it. I also have a pressure switch on the oil pressure line going to the oil pressure gauge. This switch is in the circuit to the fuel pump. If I loss oil pressure the fuel pump will shut off, as a safety measure.
As far as brakes are concerned all inner components are available from NAPA. If you don't drive the car much the alum. pistons can corrode in the wheel cyl. even with silicon fluid. They advise pushing on the brakes one an a while to avoid this.
CORDially Mike
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- Sheldon
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our 29 had a 6v electric fuel pump put on it decades ago to avoid vapour lock problems
the fuel pump has quit working so would like to replace it - the car floods sometimes and suspect that the fuel pump may have been pushing the needle off the seat - any suggestions as to what type of electric fuel pump is suitable, where to get it and what sort of psi range we need for the updraft carb would be appreciated
the brakes on the car also seem to hang on after using them a few times - the shoes, wheel cylinders, etc do not have many miles on them - was told that it's not uncommon for the master cylinders in these cars to not return properly - there is a very competent local brake rebuilder near here - would they be able to do it? - does it require a kit or just standard O rings etc that the rebuilder would likely have?? or is there someplace that rebuilds them that I should send it too?
if we are doing the master does it make sense to switch to a silicone fluid as the car doesn't get used much?
thanks!!
Sheldon
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