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post #1 of 3 (permalink) Old 12-02-04, 11:37 PM Thread Starter
"Uncle Buck"
Join Date: Oct 2004
Location: Fergus Falls, MN
Age: 28
Posts: 52
Engine Missing

Beginning to experience the nice and cold weather here in minnesota -
Anyways, when I do a cold start the car misses quite a bit and has very little oomph when accelerating (on a 400m).

The carb was rebuilt nice and clean - reset to factory specs as well -
The car just doesn't want to run well in the cold weather;
When I tune the car for cold starts it flakes out when it's hot, when I tune it for hot it flakes out when it's cold. Is it possible for the choke spring to eventually be 'worn out' or to change since 76' ?

Also- has anyone with a motorcraft 2150 carb heard of the 'positivce closure spring' ? that's supposed to go on the pulldown diaphragm's linkage/arm ?

By flaking out I mean it doesn't want to idle well; i left the car to heat up and I came back around 10 minutes later and the car wasn't running.

Also, it's got a new fuel filter/plugs/wires/cap&rotor

76' LTD Landau (400)
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post #2 of 3 (permalink) Old 12-03-04, 12:33 AM
74 XB Fairmont
brenx's Avatar
Join Date: Sep 2001
Location: Cranbourne, Vic
Posts: 5,113
Re: Engine Missing

sounds like the idle mixtures are incorrect.


XB Fairmont (street car) 11.07@123.02mph.
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post #3 of 3 (permalink) Old 12-03-04, 03:17 AM
Two SC 61's = trouble
ebxr8240's Avatar
Join Date: Jul 2001
Location: Penrith,nswAus/Morrinville.NZ
Age: 62
Posts: 6,360
Re: Engine Missing

Sorry mate hope you find it...

Don't be afraid to try something new. Remember, amateurs built the Ark...Professionals built the Titanic!
Tuned & maintained by "Peppertree Perfmormance". Dart block, Scat 4340 steel crank, Custom C.P pistons.Oliver rods.. Mal Wood twin plate clutch.. Twin SC61/2's,482 rwkw/ 645 rwhp..
Passengers, myocardial infarction material..
R.I.P Possum...
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