Jos Posted April 4, 2014 Share Posted April 4, 2014 After replacing my rear main seal last year I still had an oil leak, there was a groove on the crankshaft from the old seal that apparently has damaged the new seal (its off the engine again now). I was thinking of placing the new seal a few mm more in the housing, to prevent the groove from killing the new seal but was wondering if there was a downside to doing this, anyone else who had this issue? Quote Link to comment Share on other sites More sharing options...
David P Posted April 4, 2014 Share Posted April 4, 2014 I think Chris Wilson sells oversized seals that make up for the wear? Quote Link to comment Share on other sites More sharing options...
Jos Posted April 4, 2014 Author Share Posted April 4, 2014 Those are only for the front seal sadly, as far as I could find. Luckally the front nose of the crankshaft is fine, no groove whatsoever, so I'm a bit surprised the rear gives me some trouble. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted April 4, 2014 Share Posted April 4, 2014 (edited) You can try that, but you need to get the seal lip right away from the wear groove, there may not be enough material in the alloy seal housing to allow enough displacement and still retain the outer of the seal securely. I may have a permanent fix in the pipeline with a kit, but I am too wrapped up getting two jobs out to finalize this for a week or two. I also sell a seal for the rear like the ones I USED to be able to get for the front. They are £32 plus VAT each. The more exotic fixes are plasma spray the seal journal on the crank and re grind / polish to suit, or find a better / new crank. Edited April 4, 2014 by Chris Wilson Spelling mistake (see edit history) Quote Link to comment Share on other sites More sharing options...
Jos Posted April 4, 2014 Author Share Posted April 4, 2014 Thanks Chris ad David!, and my mistake, I thought you only sold the front seal fix . I will first try to place the seal 1,5 mm further in the housing, I can make up a tool to get it in straight, only need to be carefull not to damage the lip while getting past the groove, see how that goes as ideally I want the engine back in at the end of this weekend. Otherwise I'll be in touch! Quote Link to comment Share on other sites More sharing options...
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