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MG MGA Brass Speedo Drive Seal ? BBS discussion at MG-Cars.info
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MG MGA - Brass Speedo Drive Seal ?
| Does anyone know how the brass speedo drive housing seals into the gearbox. Is it a fibre seal / rubber seal / Copper Washer ? http://mgaguru.com/mgtech/books/spl/spl_tc_f.pdf I "think" it's defunct part number 51K3169 modern comined MGA/MGB geabox gasket sets contain the MGB speedo drive gasket and a fibre washer which I have no idea what it's for as it's too small for the MGA speedo drive. Many Thanks Mark |
| Mark Hester |
| Mark Just had a look at my 1500 gearbox lying in the garage. It's a copper washer. 1.25"OD, 1"ID Steve |
| Steve Gyles |
| Hi Steve, Any idea the size of the copper washer and if that part is used elsewhere under another part number? The several gearbox kit's I have, don't contain any large copper washers. Cheers Mark |
| Mark Hester |
| Mark Assuming we are talking about the same washer I have attached a photo of subject item and the drive unit. Measurements are: 1.253 inches outside diameter 1.068 inches inside diameter 0.041 inches thick Steve 
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| Steve Gyles |
| There is also a rubber shaft seal inside the housing, and is required to work, because the speedo drive resides below oil level in the gearbox. |
| Barney Gaylord |
| That looks like the copper washer Steve.. .Many Thanks I also don't have the rubber inside Barney.. Any idea's on what I do to replace this ? Many Thanks Mark |
| Mark Hester |
| Mark Mine does not appear to have one either. Steve |
| Steve Gyles |
| For seal replacement see here: http://mgaguru.com/mgtech/gearbox/gt106.htm |
| Barney Gaylord |
| Barney Yes, Makes sense now. Mine is as your photo. Steve |
| Steve Gyles |
This thread was discussed between 21/03/2013 and 22/03/2013
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