71charger
Settling In
SE Chargers Rock
Posts: 168
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Post by 71charger on Mar 31, 2011 12:29:37 GMT -5
You won't know the part number by chance or what make and model vehicle that it is for? I'd like to see if I pick one up at my local auto parts store.
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Post by 71greengo on Mar 31, 2011 19:39:19 GMT -5
This has been a problem that has been around a long time, in the past it was due to the carb leaking back after sitting sometimes just overnight.......the cure was a rebuild
now a days as mentioned ....Fuel is designed to operate in Fuel injected vehicles as high as 50psi....with a carb fuel is working at atmospheric pressure and subject to vaporizing causing all sorts of fuel related issues....such as hard starting
todays fuel simply evaporates (especially while hot) much faster then fuel 40 years ago........either install an electric fuel pump or live with it....
I also find that after running the car hard that it is sometimes hard to start after shutting it off while its still hot.,....this is due also to the fuel boiling in the fuel bowls and making the car tough to start......insulating the carb may help or using a carb spacer or blocking off cross overs in the intake.....
just my thoughts.........I will most likely run an electric fuel pump suited for carburated cars...
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on Mar 31, 2011 19:43:27 GMT -5
Steve, if you go electric ...will you go with an in tank or frame mounted unit? Also, I assume this does this require an adjustable regulator before the carb?
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Post by 71greengo on Mar 31, 2011 19:52:18 GMT -5
I will for sure go with a frame mounted pump........I have used Holley ones in the past,.....I believe they have a low pressure self priming fuel pump now ......I will have to check more into it......years ago I did mount a fuel regulator before the carb...as you only need a fraction of the PSI that a fuel injected car would require.....
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Post by ScottyB on Mar 31, 2011 21:02:36 GMT -5
If you go with an electric fuel pump you will need to add a regulator and set the fuel pressure to 6 1/2 - 7 lbs. you can buy a in line mr gasket one that has the filter and reg built in. I got my check valve off ebay just click the link on my above post it was like 16 bucks.
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Post by an1x on May 10, 2011 17:38:02 GMT -5
thanks for the info guys! I've been attacking this issue on my car for the past two months. replaced the tank, all the rubber lines, the pump and finally i thought to take the pump off and manually push it with my hand and SUCCESS! GAS! I think an electric pump with a one way check valve is on my to do list tomorrow.
Ugh, so glad I found this forum haha.
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Post by an1x on May 11, 2011 11:27:47 GMT -5
random question, where are you guys mounting your fuel pumps? that tank sits pretty low.
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