Reverse drum

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Model T Ford Forum: Forum 2012: Reverse drum
Top of pagePrevious messageNext messageBottom of page Link to this message  By Bill Thompson on Monday, September 03, 2012 - 11:50 am:

I have a broken reverse drum in a 26 engine I am building. Does anyone know what years are interchangable? Has anyone had good luck welding or brazing these trans drums?


Top of pagePrevious messageNext messageBottom of page Link to this message  By Mike Bender Tulsa Oklahoma on Monday, September 03, 2012 - 12:00 pm:

Reverse drums are very common to find and any will interchange. Welding/brazing can and has been done but will put the drum out of balance a bunch from what I have seen. Find a replacement drum, you will be better off IMO.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Roger Karlsson, southern Sweden on Monday, September 03, 2012 - 12:35 pm:

Broken like in pieces or just a crack from the rivet to the lightening hole in a couple of places?

Here are a couple of pictures posted by Joseph Magedanz in 2009:
crack small crack small2
Most reverse drums seems to develop cracks. It's commonly thought that if a drum only has small cracks from the rivets out to the lightening holes like in the second picture (but not anywhere else) then they can be used without much fear - but cracks going towards the outer rim is something much worse and could result in a drum failure.

Remember the tales about using the reverse as a brake? It should only be tried when in a catastrophic emergency - a reverse drum isn't beefy enough to stand for more than a fraction of the abuse a regular brake drum can take.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Mark Gregush Portland Oregon on Monday, September 03, 2012 - 01:44 pm:

Here is my post on cracked revers drums:
http://www.mtfca.com/discus/messages/257047/276198.html


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