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#1
05-28-2023, 05:59 PM
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Steep hill engine stalling at WOT
Hi,
Going up a steep hill with my Firebird at WOT, the engine suddenly stopped. I noticed gasoline leaking around the carburetor. It only happens in this hill. What is the cause and solution ? (see pictures) Thanks in advance for your help ! |
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#2
05-28-2023, 07:23 PM
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Probably two things. If it only happens on that steep hill. My guess is that the angel is steep enough that your float cannot put enough pressure on the needle valve to shut off incoming fuel, causing a flooded condition in the carb. Second it looks like you need some new gaskets at the base of your carb.
__________________
If you built it, drive it. red 62 Tempest total stock restoration. white 62 Tempest modified, 61 389 Tri-Power, and a conventional drive train. |
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#3
05-28-2023, 09:38 PM
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Does the carb have the plastic fuel bowl cap above the metering rods?
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#4
05-29-2023, 12:20 AM
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No, that carb doesn't have cap ..
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#5
05-29-2023, 03:27 AM
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Looks like a "Frankencarb" assembled with parts from at least three different carburetors.
JMHO |
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#6
05-29-2023, 05:05 AM
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Maybe you uncovered fuel pick up in your tank? How much fuel in tank at the time?
__________________
Will Rivera '69 Firebird 400/461, 290+ E D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears '64 LeMans 400/461, #16 Heads, HR 230/236, TKO600, 9inch Rear, 3.89 gears '69 LeMans Vert, 350, #47 heads: Non-running project |
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#7
05-29-2023, 06:12 AM
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Just how would his carb show signs of flooding out like it is if his tank pickup is getting uncovered?
If that is a 67 carb then they had the early and poorly designed float set up that was prone to flooding out at sever angles, even more so if the float is just a tinny bit out of adjustment. They where very sensitive to having that adjustment dead on. In conjunction with your float could be going bad a absorbing fuel and riding lower the it should.
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#8
05-29-2023, 06:23 AM
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It looks like a 1973-74 Pontiac float bowl mfd by Carter with an added tube for ported igintion vacuum advance, 1973-74 Buick air horn (hopefully drilled for upper idle air bleeds) and a Chevy throttle plate.
Any guess what´s inside is good. FWIW |
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#9
05-29-2023, 09:35 AM
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Grivera ... half tank
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#10
05-29-2023, 09:39 AM
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Quote:
__________________
Will Rivera '69 Firebird 400/461, 290+ E D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears '64 LeMans 400/461, #16 Heads, HR 230/236, TKO600, 9inch Rear, 3.89 gears '69 LeMans Vert, 350, #47 heads: Non-running project |
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#11
05-29-2023, 03:46 PM
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Thank you all for your advices ..
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#12
05-29-2023, 04:10 PM
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This the plastic cap I was referring to.
It’s internal above the float.
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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