1957 left hand exhaust manifold

[twstnshout]

What is the difference between a left hand exhaust manifold 9431- EDB and ECJ? Passenger car vs. thunderbird application?

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[cokefirst]

The Thunderbird exhaust manifold has a different shape at the outlet to the exhaust pipe to miss the steering components on the Thunderbird.

 

[twstnshout]

And the clutch mechanisms? Unfortunately you don’t realize it the first time until you try and assemble everything. UGH

 

[cokefirst]

Yes, it is a clearance issue. If the passenger car one would fit, there would be no reason to make a special one for the Thunderbird.

 

[Ward 57]

The regular sedans had much more room in the engine compartment. When they designed the T-Bird the room was restricted another reason the brake booster was mounted on the fender.

 

[cokefirst]

Actually, the power brake booster was also mounted on the fender in the 1955 and 1956 model year passenger cars, Those used the same Midland power brake booster that was used on the Thunderbird. Only the Mounting bracket was different. Ford used the Midland booster in the 1957 Thunderbird as well, but used a Kelsey Hayes booster in the Ford passenger cars that was a bellows unit located under the dash.

 

[Ward 57]

Actually, the power brake booster was also mounted on the fender in the 1955 and 1956 model year passenger cars, Those used the same Midland power brake booster that was used on the Thunderbird. Only the Mounting bracket was different. Ford used the Midland booster in the 1957 Thunderbird as well, but used a Kelsey Hayes booster in the Ford passenger cars that was a bellows unit located under the dash.

The day is not wasted, I learned something new. Judging by my '57 shop manual it didn't reference that. There were many changes made to the '57 vs the 55-56 although many don't show other than the longer rear fenders.

 

[cokefirst]

That could be because the shop manual only deals with repairs and service. They assume that you are doing the repair using the correct part.

 

[Ward 57]

That could be because the shop manual only deals with repairs and service. They assume that you are doing the repair using the correct part.

Yup and techs that knew their stuff and didn't need to turn to the shop manual at every step to do their job.