Need a Pan Dimension

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BE_ZERO_BE
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Need a Pan Dimension

Post by BE_ZERO_BE » Wed May 04, 2022 9:16 pm

I need the dimension from the flange that the block sits on
to bottom of the pan arm that sits on the frame rail.
Is it different for long nose and short nose pans?

Thanks.

Pan Dim.jpg
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Be_Zero_Be

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Allan
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Re: Need a Pan Dimension

Post by Allan » Thu May 05, 2022 5:36 pm

Yes it is different, The later arms had to clear the rolled edge of the strengthened pan. Therefore, the section of arm from the frame rail return down to the where it attaches to the pan is longer. I once fitted later arms on a pan and ran a 1/4" thick rubber insertion between the ear and the frame rail.

Hope this helps.
Allan from down under.

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RajoRacer
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Re: Need a Pan Dimension

Post by RajoRacer » Thu May 05, 2022 7:20 pm

I'll get some measurements also Bob.


Moxie26
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Re: Need a Pan Dimension

Post by Moxie26 » Fri May 06, 2022 6:10 pm

With this dimension change be reflective of the four dip pan versus the three dip pan?


Harry Lillo
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Re: Need a Pan Dimension

Post by Harry Lillo » Fri May 06, 2022 9:30 pm

Bob,
I have a full scale drawing of the Ford crankcase pan dated 4 15 15.
It has every possible dimension and raduis; but is missing the pan arms.
Now I need this dimension as well to complete our pan jig.
Harry


Allan
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Re: Need a Pan Dimension

Post by Allan » Sun May 08, 2022 6:37 am

The dimension changes between the early pans with the flat gasket surfaces with no return edge to the later pans that have the edges rolled down to stiffen them. The date of the change is immaterial. The difference is in the shape of the pan.

Hope this helps.
Allan from down under.

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Mark Gregush
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Re: Need a Pan Dimension

Post by Mark Gregush » Sun May 08, 2022 10:04 am

Lipped or not, the distance from the surface the transmission cover/block sit on to the underside of the arm that sits on the frame, measured at a right angle to that face would remain constant, no matter the configuration of the arm between those two points. The two mounting holes for arm to frame are the same, as are the holes for the transmission cover/block. The change in design for the arm would be the bends to clear the lip on the pan.

I just went out and checked my only pan, the one from the car in my avatar. At some point it had been in an accident and the pan is messed up at the radius ball mount and arms. I got approx. 3-7/8 on one side and just under 4 on the other between the face of the pan and arm top hole. Maybe this would be a case of getting the factory drawings to get the proper measurements?
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Re: Need a Pan Dimension

Post by Allan » Sun May 08, 2022 7:39 pm

You are correct Mark. The difference in the arms matters when they are exchanged. Later model pan arms when fitted snugly to the flat flange on an earlier pan results in the pan sitting lower in the frame, because the distance from the bend in the arm to the ear at the top is longer an the later arms.
If a later arm is used, it needs to be spaced down the side of the pan as though it was still clearing the rolled outer edge.
Allan from down under.

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