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Old 03-01-2013, 05:06 PM
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motor/tranny suppose to be level?

Getting closer to finishing the auto-over-4 speed conversion. Fabbing up a new tranny crossmember, and wondering if the motor is suppose to be level? Maybe motor & tranny pointing down a tad?
Previously the 700R4 was in a position where the driveshaft fit through a "blow-proof" ring which is welded to the frame. Now, with the Muncie, that ring appears to be way to high for the driveshaft......Guess I can always cut and move that....(is it needed?)
Oh...forgot to mention this is a 31 Model A coupe.....

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Old 03-01-2013, 05:26 PM
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The intake should be level where the carb bolts on.

I believe it's about 3*.
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Old 03-01-2013, 05:36 PM
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The intake should be level where the carb bolts on.

I believe it's about 3*.
x2...........
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Old 03-01-2013, 05:40 PM
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so if the carb is level, will that make the motor/tranny point downward the 3*?
is there any harm in the carb not being level? ie: bigger tires making the car rake more?
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Old 03-01-2013, 05:42 PM
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so if the carb is level, will that make the motor/tranny point downward the 3*?
is there any harm in the carb not being level? ie: bigger tires making the car rake more?
Fuel won't be distributed evenly though the intake. If its leaning way back the rear 4 cylinders will run rich and the front 4 run lean. Vice versa if it's leaning forward.
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Old 03-01-2013, 05:50 PM
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Fuel won't be distributed evenly though the intake. If its leaning way back the rear 4 cylinders will run rich and the front 4 run lean. Vice versa if it's leaning forward.
wow...never crossed my mind....but i guess a little tilt wont hurt....I thought the tailshaft/driveshaft being fairly level was important....and wanted to use the existing "ring" the driveshaft use to go through, but I am a lot lower now. Never figured the 700R4 would be that much higher
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Old 03-01-2013, 07:56 PM
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Seems weird it won't line up. Maybe cause the the input and output of the muncie are in line and the 700r4 aren't.. That's all i can think of
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Old 03-02-2013, 04:34 AM
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Seems weird it won't line up. Maybe cause the the input and output of the muncie are in line and the 700r4 aren't.. That's all i can think of
could be...I should have made note of how high the 700r4 was mounted and noticed the angle of the yoke at the rear of the tranny before I removed it, I DO know that the rear support member is now about 1 1/2 inches lower than it was, so there's the difference I suppose....

Last edited by 31ROC; 03-02-2013 at 05:01 AM.
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Old 03-02-2013, 04:51 AM
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Fuel won't be distributed evenly though the intake. If its leaning way back the rear 4 cylinders will run rich and the front 4 run lean. Vice versa if it's leaning forward.
There is not a pool of gas in the intake....The carb mixes the gas with the air, so it will be even whether one end is higher or lower. You want the carb more or less level so that the fuel bowls sit level.
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Old 03-02-2013, 05:04 AM
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There is not a pool of gas in the intake....The carb mixes the gas with the air, so it will be even whether one end is higher or lower. You want the carb more or less level so that the fuel bowls sit level.
thanks........I thought that too, but wasnt sure....seems like most cars/rods the motor appears to be pointing upwards slightly in front.
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Old 03-02-2013, 05:24 AM
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What degrees at the yoke are you talking about now??. What degrees is the rear end going to end up??.


I do tire of second guessing O/P's,but not for nothing if it where me going to stick shift,I would have gone to a Tremtec 5 speed to get the best of two worlds.

Last edited by 1Gary; 03-02-2013 at 05:32 AM.
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Old 03-02-2013, 05:29 AM
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Here's a guide to check your drive line angles.
Attached Files
File Type: pdf U-JOINT GUIDE (SPICER).pdf (393.9 KB, 14 views)
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Old 03-02-2013, 07:12 AM
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Big dog , must only drive around on level roads. It will effect the floats, and bowls volume .

Last edited by spinn; 03-02-2013 at 07:18 AM.
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Old 03-02-2013, 09:07 AM
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Originally Posted by 1Gary View Post
What degrees at the yoke are you talking about now??. What degrees is the rear end going to end up??.


I do tire of second guessing O/P's,but not for nothing if it where me going to stick shift,I would have gone to a Tremtec 5 speed to get the best of two worlds.
why second guess at all? dont do 5 speeds, not old school.......
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