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'87 F250 original carb?

87-250

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0
What was the original make of carb on a '87 351ci engine? And how do
I get rid of the " flat spot" off idle? This is driving me nuts!!!! Thanks.
 
DNFXDLI

DNFXDLI

The Token Canadian
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Carter? just a guess though.
 

jebadiah04

Rooster Snorkler
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flat spot off of idle, can be caused by a couple things, but usually its a vac leak.

however its rare to find a stock 87 with a carb on it. and its even harder to determine what the problem is when you havn't given us much info.
 

87-250

80
0
jebadiah04 said:
flat spot off of idle, can be caused by a couple things, but usually its a vac leak.

however its rare to find a stock 87 with a carb on it. and its even harder to determine what the problem is when you havn't given us much info.
Click to expand...

What would you like me to tell you? It is a original carb so is it Motorcraft or a Holley? I can pull the air cleaner off tomorrow and try to get any numbers. The air pump has been disconnected before I got the truck. The carb was rebuilt about 5 years ago by a specialist company but the truck has less than 4000 miles since that rebuild. Anything else?
 
dustybumpers

dustybumpers

don't play well w others
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High idle that can't be controlled is a bad vacuum leak. Could be as simple as the carb is loose on the intake.

As an answer to the carb question above, some 87 5.8's had a 4 bbl Holley in the first part of 87. The E series were the same way

Late 87, and 88 on will be EFI
 
dustybumpers

dustybumpers

don't play well w others
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In my own world
Back to your solution, take a can of carb cleaner, and spray around your carburetor, and all your vacuum lines.
When your idle changes, you have found your vacuum leak
 

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