offenhauser twin carb inlet

52merc

52merc

Well-known member
a friend has one of these and just discovered that the geanerator slot is off set,any reason for this,, thanks :)
 
In a 8ba motor this puts the fan and generator offset which looks weird in a hot rod with no hood, and puts offset loads on pulleys. the fan is 1 1/4" off to the left .Is there a way to correct this off set ? A powergen generator is shorter than an original ( think) so clearance may not be an issue.
 
I also have an offy dual carb manifold that I planned on using on my 8ba powered 41 ford and I don't like that offset,i also have an edelbrock 4 bbl intake and it mounts the gen in stock location,im leaning on the edelbrock as I might want to use a fan shroud,and the offy would be a problem with its offset...
 
my4dv8 said:
In a 8ba motor this puts the fan and generator offset which looks weird in a hot rod with no hood, and puts offset loads on pulleys. the fan is 1 1/4" off to the left .Is there a way to correct this off set ? A powergen generator is shorter than an original ( think) so clearance may not be an issue.
Click to expand...
Mine is a 4bbl. Offy and it is offset to the passenger side by 7/8"
(not 1 1/4" )
And yes there is a way to correct it.
In my case I fabricated a new fan/pully mount.
This is the new mount.
 

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51 MERC-CT said:
Mine is a 4bbl. Offy and it is offset to the passenger side by 7/8"
(not 1 1/4" )
And yes there is a way to correct it.
In my case I fabricated a new fan/pully mount.
This is the new mount.
Click to expand...
Nice job on the offset. I have an Offy 4bbl intake on an 8BA I've just about all done. it's on one of my engine stands. I'll have to check and see if it's offset. Walt
 
Walt Dupont--Me. said:
Nice job on the offset. I have an Offy 4bbl intake on an 8BA I've just about all done. it's on one of my engine stands. I'll have to check and see if it's offset. Walt
Click to expand...
If it's offset there is no reason to correct it unless there are interference
problems. In my case I have a fan shroud which the fan hit.
 
This is a regular twin so perhaps the off set is different.
Did you just cut off the original fan bracket base and re weld it further over?
Are these cast or forged? How would the welding heat affect the fan hub?
Thanks.
51 MERC-CT said:
Mine is a 4bbl. Offy and it is offset to the passenger side by 7/8"
(not 1 1/4" )
And yes there is a way to correct it.
In my case I fabricated a new fan/pully mount.
This is the new mount.
Click to expand...
 
my4dv8 said:
This is a regular twin so perhaps the off set is different.
Did you just cut off the original fan bracket base and re weld it further over?
Are these cast or forged? How would the welding heat affect the fan hub?
Thanks.
Click to expand...

The intake manifold was not altered. I just fabricated a new fan/pulley mount out of 3/4" flat stock and a short piece of round stock plus mat. for gussets. This provided a welded platform to drill a hole for the original pulley shaft to be pressed into. This only moves the fan/pulley to where it belongs. The alt. is mounted in its original location.
 
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