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09-02-2014, 08:15 AM | #1 |
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Join Date: May 2010
Location: south cent Ky
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Motor clearance issue with T 5
I am putting rebuilt flathead with a t-5 transmission in my 39 tudor. I am having problems with motor to firewall clearance with new front motor mounts. The angle of the engine consistent with required pinion angle on an open drive leaves too little clearance from the firewall especially on the passenger side. Anyone else had this problem? Advice? |
09-02-2014, 09:58 AM | #2 |
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Location: SE NC
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Re: Motor clearance issue with T 5
I had a similar problem with my '34 roadster. The builder did an excellent job of modifying the firewall - looks like it's always been that way.
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09-02-2014, 10:08 AM | #3 |
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Re: Motor clearance issue with T 5
Hope these pictures help.
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09-02-2014, 12:49 PM | #4 |
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Re: Motor clearance issue with T 5
is the engine at a 3 degree down angle?
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09-02-2014, 01:34 PM | #5 |
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Re: Motor clearance issue with T 5
Why change from the original mounts? Makes no sense to me. Changes are generally made after the engine?
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09-02-2014, 01:53 PM | #6 |
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Re: Motor clearance issue with T 5
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Match the axle to the engine is what I am trying to say. That said, as it isn't a stocker why not "massage" the firewall to clear the engine? Are you sure the front motor mount setup is correct? Mart. |
09-02-2014, 03:27 PM | #7 |
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Location: south cent Ky
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Re: Motor clearance issue with T 5
These are stock mounts but are about 1/4-3/8'' "taller than the worn mounts that came out of it. the pinion angle is about 3* (negative at end of transmission and + at the face of the banjo so I think that is ok but I may have to change it to get the back of the engine down. I may have to modify the firewall on the passenger side but I have not seen any discussion of this problem here or on the HAMB for those making these changes. Thanks for the pics and the advice. I will keep you "posted" on future developments.
bd |
09-02-2014, 03:28 PM | #8 |
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Re: Motor clearance issue with T 5
Would a different style water pump be any help? I had no problem with a 1946 59 motor, T5 and a 9" rear. As Mart said, shouldn't the motor angle be set first?
Last edited by jrvariel48; 09-02-2014 at 03:53 PM. |
09-02-2014, 03:38 PM | #9 |
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Re: Motor clearance issue with T 5
Is the problem that you are putting the trans above the x-member and the rear of the motor is too high? Does the back of the motor need to go up or down to clear. With the front mounts low relative to the engine, raising the rear of the motor will increase clearance, unless the tight spot is between the half bell and the firewall transition into the tunnel.
A picture of the whole setup and the problem would help a lot. It's like playing a guessing game here. Mart. |
09-02-2014, 03:40 PM | #10 | |
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Re: Motor clearance issue with T 5
Quote:
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09-02-2014, 05:57 PM | #11 |
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Re: Motor clearance issue with T 5
it looks like the motor sits back 2" from the stock location with those mounts. if the stock front crossmember had been used the motor would not have been so far back. i did the same conversion in a 41 pick up and had plenty of room at the rear of the motor with front mounts on teh stock front crossmember....
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