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#15694 07/10/2003 9:45 PM | Joined: Jun 2001 Posts: 169 'Bolter | | 'Bolter Joined: Jun 2001 Posts: 169 | 1951 1/2T Chevy How do you cut a hole in rubber belting? I need to enlarge the holes in these trans mount rubbers to accept the ½" bushing. I tried a ½" drill bit but that will not cut a full size hole. It just pushes through and leaves about a 3/8" hole. I know what you’re thinking...use a 3/4 and it’ll end up at ½. Don’t have 3/4 and it leaves a very ragged hole. Seems like some kind of punch would be needed. Would a local belting supply house have something to punch it with? As we discussed previously the rubber pieces for the mount from Chevy Duty are too thick and push the mount too high for the back of the transmission. I have some thinner rubber (thanks James Smith) for above and below the plate but wanted to fill the space with urethane. These “shims” were easy to fabricate and easy to drill. Just a little time with a hacksaw and grinder did the trick. This will keep the mount from moving too far side to side. PRW [img] http://www.whcinc.com/images/Trans007.JPG[/img] [img] http://www.whcinc.com/images/Trans012.JPG[/img] | | |
#15695 07/10/2003 10:58 PM | Joined: Dec 2000 Posts: 25 Member | | Member Joined: Dec 2000 Posts: 25 | Try taking a 1/2 bolt, and heating it red hot and burn the holes, this has worked for me in the past.
1950 3100 5-window
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#15696 07/10/2003 10:59 PM | Joined: Oct 2001 Posts: 3,458 Extreme Gabster | | Extreme Gabster Joined: Oct 2001 Posts: 3,458 | Yes, you will need a punch to do the rubber. A leather punch from Harbor Freight would work.
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A lone amateur built the Ark. A large group of professionals built the Titanic. | | |
#15697 07/10/2003 11:02 PM | Joined: Jul 2001 Posts: 6 Member | | Member Joined: Jul 2001 Posts: 6 | Paul
I have made a punch in the past to cut felt inserts for wooden knicknacks I used to sell.
A piece of thin wall pipe was used, ground a beveled edge, hit the pipe with a mallet to cut out the pieces they worked great.
You could also try McMaster Carr, they sell all kinds of punches and they carry them for rubber, quick shipment also.
Dave | | |
#15698 07/11/2003 12:21 AM | Joined: Feb 2003 Posts: 1,379 'Bolter | | 'Bolter Joined: Feb 2003 Posts: 1,379 | I have used a gasket punch set to make holes in rubber and other materials | | |
#15699 07/11/2003 12:24 AM | Joined: Aug 2000 Posts: 800 Shop Shark | | Shop Shark Joined: Aug 2000 Posts: 800 | 6" piece of copper pipe ground sharp on one end. Maybe put a cap on the bangin' end. | | |
#15700 07/11/2003 12:52 AM | Joined: Jul 2001 Posts: 3,887 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Jul 2001 Posts: 3,887 | I've used this type hole saw to make dozens of rubber donuts for my bottle washer - works great for any size Bill | | |
#15701 07/11/2003 2:47 AM | | Anonymous Unregistered | | Anonymous Unregistered | Like squeeze says - a hole saw works well | | |
#15702 07/11/2003 3:36 AM | Joined: Jan 2003 Posts: 687 Shop Shark | | Shop Shark Joined: Jan 2003 Posts: 687 | Paul: We use both hole saw or punch in our maintenance dept for rubber or gasket material. What ever you need more at home I would buy, becareful and do not buy cheap grade of Hole saw kit. You will throw them away after first hole. It's UGLY. popcorn The Truth is Out There (Good Luck) | | |
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