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Ford
Cortina
Engine
Symptoms
Idle Rough
Back firing and rough idle
COLAN H
MEMBER
1972 FORD CORTINA
1.6L
4 CYL
2WD
MANUAL
1 MILES
Brand new engine fitted and fully reco carb also fitted, genuine weber, downdraft
Monday, June 10th, 2019 AT 9:29 PM
1 Reply
JACOBANDNICKOLAS
MECHANIC
108,230 POSTS
Welcome to 2CarPros.
Is the back fire through the carburetor or exhaust? Have you checked for vacuum leaks which can cause this? How was the carburetor adjusted?
Here are a couple links you may find helpful:
https://www.2carpros.com/articles/engine-backfires-while-running
https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge
Also, are you certain that you have all ignition wires to the correct cylinders?
Let me know.
Joe
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Tuesday, June 11th, 2019 AT 9:25 PM
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