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  #1  
Old 10-10-17, 23:01
Bob Carriere Bob Carriere is offline
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Default Well I cheated........

....and got 2 sets from Dirk at LWD...... with the springs all packed in a nice GM wrapper.

Odd expereince...... a commercial gasket maker in Ottawa had the felt and could cut it to size with a fast rotating saw blade device....... But would not sell to me as I was not a commercial user...... no amount of cash could make him change his mind........ not sure if he moved but the building is now empty.

Grant just fabricated his own felt oil seals for the CMP trialer he is restoring....white felt......worked nice and served as a wipe seal against the axle shaft....seal is unique to the trialer...... Grant may chime in.....

No :TRIALER" IS NOT A TYPO...... that is how the guy at the weight scale spelled it.......
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  #2  
Old 11-10-17, 00:10
David Herbert David Herbert is offline
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"Trialer" Got the right letters in almost the right order - better than most people seem to manage these days !

David
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  #3  
Old 11-10-17, 02:36
Harry Moon Harry Moon is offline
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Default felt

I used this just recently, "FELT - Engineering "B" Grade, 6.4 mm x 10 mm, 3 Metre Strip.
( 291721969080 )" Ebay wont let me share the listing as it was to old. I'll give some feedback on performance when i get some miles on it.
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  #4  
Old 11-10-17, 03:04
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Jordan Baker Jordan Baker is offline
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http://www.ebay.ca/itm/FELT-Engineer...0AAOSwv0tVG2ca
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  #5  
Old 11-10-17, 04:31
Grant Bowker Grant Bowker is offline
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As stated by Bob, the seal in the hub of the 15cwt GS trailer isn't like the standard truck seals. The old felts were in poor shape so I didn't have a choice. I considered O-rings but the right size didn't seem available (fairly tight specs). Precut 1/4x1/4 felt would have been worth a try if I could have found it but I couldn't. I bought 2 different grades of felt, chose to use the firmer one (F1 as opposed to F3). It was described as "2DAH9 Felt Sheet, F1, 1/4 In Thick, 12 x 12 In".

My process was to measure the diameters of the inside of the hub and the base of the groove in the metal part of the seal. The seal is 2 parts -the metal shaped to fit on the axle and into the hub and the felt to fit in a square cut groove in the seal body and bridge the gap between seal body and hub. Next to apply basic drafting to make a paper template, lightly spray with contact cement and apply to the felt. Roughly cut the outer dimension. Much more carefully cut the inner diameter using x-acto knife on a glass sheet. Actually, supporting the felt on the glass and having the blade perpendicular at the edge of the glass. It cut fairly well, left a nice square edge and as the photos show a decent inner diameter. Slip/stretch the felt into the seal body. Then set up the belt sander as shown. The stir sticks acted as stops to prevent the assembled felt and seal body from getting too close to the belt and ensured a constant radius. Once sanded to close to correct size, test fit in the hub and adjust the setup to remove a tiny bit more felt.
Attached Images
File Type: jpg raw felt.jpg (56.0 KB, 1 views)
File Type: jpg felt layout.jpg (301.1 KB, 1 views)
File Type: jpg felt blank.jpg (61.7 KB, 1 views)
File Type: jpg sander setup.jpg (71.3 KB, 1 views)
File Type: jpg sander wide view.jpg (97.6 KB, 1 views)
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  #6  
Old 11-10-17, 04:32
Grant Bowker Grant Bowker is offline
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remaining photos
Attached Images
File Type: jpg sanding progress.jpg (72.6 KB, 1 views)
File Type: jpg seal in place.jpg (75.8 KB, 1 views)
File Type: jpg seal after testfit.jpg (55.2 KB, 3 views)
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  #7  
Old 11-10-17, 14:47
Phil Waterman Phil Waterman is offline
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Quote:
Originally Posted by Bob Carriere View Post
........

Odd expereince...... a commercial gasket maker in Ottawa had the felt and could cut it to size with a fast rotating saw blade device....... But would not sell to me as I was not a commercial user...... no amount of cash could make him change his mind........ not sure if he moved but the building is now empty.

.......
Hi Bob

I've run into this problem of only selling to "commercial user" my first response was to put my consulting business card on the counter this generally solved the problem. Only once buying bearings was that not enough. Solution purchase order from Canadian Military Pattern wonderfull what you can do with a computer. Guy look at the purchase order saw the web address, checked the web address and then filling the order.

Only time this approach didn't work was with fabric company from California that would not sell to me because I was a foreign company, guess New Hampshire is now the southern most Canadian Provence.

Cheers Phil
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  #8  
Old 12-10-17, 14:48
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charlie fitton charlie fitton is offline
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[QUOTE=Phil Waterman;....because I was a foreign company, guess New Hampshire is now the southern most Canadian Provence.

Cheers Phil[/QUOTE]

Happy to have to aboard...We (as Canadians) get a win with that..
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  #9  
Old 12-10-17, 16:13
Grant Bowker Grant Bowker is offline
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Quote:
Originally Posted by Phil Waterman View Post
Only time this approach didn't work was with fabric company from California that would not sell to me because I was a foreign company, guess New Hampshire is now the southern most Canadian Province.
Ontario may still hold the honour of southernmost province. Point Pelee National Park is listed at 41.962 degrees N latitude. Nashua NH (near the southern border of NH) is listed at 42.765 degrees N. In fact, California also reaches further north than Point Pelee reaches south....
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