IR009 Posted January 3, 2017 Report Share Posted January 3, 2017 Hi, apologies if this subject has been covered in the past, since completing the rebuild of my mk3 spitfire I've had a problem with my diff pinion oil seal leaking. Whilst I'm aware this I is not unusual on a spitfire I can almost watch it drip and have to top the diff off up with oil regularly. I've replaced the seal twice, the second time with the most expensive seal I could find (this did however look exactly the same as the cheap one I bought first) but it's no better. There is some pitting on the pinion where it is in contact with the seal and wonder if this can be refinished as I think this may be the problem and I believe they are not available. Any thoughts would be appreciated. Thanks Ian Link to comment Share on other sites More sharing options...
Pete Lewis Posted January 3, 2017 Report Share Posted January 3, 2017 You may find that not inserting the seal fully will allow the lip to run on a unworn surface skf make wear sleeves this is a thin tin sleeve you push over the worn jornal and use the same seal do check the breather is not blocked, small split pin in a hole above the n/s output bearing Or get a replacement coupling pete Link to comment Share on other sites More sharing options...
sulzerman Posted January 3, 2017 Report Share Posted January 3, 2017 HI Ian I had this problem with my gearbox flange. Sounds like a bodge, but I used chemical metal body filler on the pits then sanded smooth. It's never leaked since and that's over 10 years!! May be worth a try. Good luck! Link to comment Share on other sites More sharing options...
IR009 Posted January 4, 2017 Author Report Share Posted January 4, 2017 Hi, thanks Paul and Pete for the tips, the breather hole is clear and I thought about the position of the seal when I replaced it the second time but unfortunately the pinion is pitted along its entire length probably due to it been stood empty for about 30 years. I'm hoping to get to Stoneleigh in Feb and will be looking for a replacement, if that fails I'll try the metal filler or the sleeve option. Link to comment Share on other sites More sharing options...
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