Hi folks, so after fitting a used gearbox last year I noticed the front input shaft seal was dripping oil. With one thing and another I finally got around to changing it a few days ago. On taking it apart, the flange diameter that the seal is in contact with had some light pitting. I thought that I could get away with a polish.
Unforunately that didn't work, so resorted to cylindrically grinding the diameter. Put it back together tonight and all went well, when originally taking out the flange the split pin on the castellated nut was perfectly in line. The nut came off a little too easliy for my liking (battery impact gun) so when re-assembling I torqued it up to the correct figure (85ft/lb) using two nuts and bolts with a large screwdriver as resistance. The nut and washer were now further onto the shaft, and looking at it the split pin hole it was just before the end of the catellations, I managed to get one leg of the split pin in and wraped it around the nut. Trimmed the other and did similar. Small test drive last night and no drips from that area, still needs a clean under there though.
Front output flange seal
Front output flange seal
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Re: Front output flange seal
excellent work I bet you feel pleased
Re: Front output flange seal
Yes it's another item ticked off the list, exhaust next!
Re: Front output flange seal
I’m going to replace front wheel bearing and service free wheel hubs tomorrow morning
Will only do near side tomorrow taking it easy in the hot weather
Will only do near side tomorrow taking it easy in the hot weather
Re: Front output flange seal
I know what you mean regarding the heat, I managed to remove two bolts from the rear silencer hangar before bring bathed in sweat. Left it a few hours, then attempted the centre section bolts, first one defeated me as its a cheese head Allan key type which has rounded off and nothing to grip on. Decided best course of action was a cold cider with the fan on me watching the football!
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Neil Bymouth
- Posts: 118
- Joined: Sun Dec 14, 2025 9:50 pm
- Location: North West Hampshire
Re: Front output flange seal
Nothing urgent needs doing to mine fortunately as it's far too hot. I want yo change the ignition coil sometime but thst can wait.
I wouldn't belong to a club that would accept me as a member (Groucho Marx).
Re: Front output flange seal
I’m following the Tour de France on tv and omg how they manage to race in such heat .