LoggyDriver Posted December 20, 2009 Share Posted December 20, 2009 Has anyone on here worked on the Bedford MJ main gearbox? I need to change the main gearbox output shaft oil seal. Thanks to a member on here I have 2 very nice brand new seals for the job. Just waiting for some warmer weather. Has anyone got any experience of changing these or any workshop materiel describing the job? Thanks in advance. Quote Link to comment Share on other sites More sharing options...
Richard Farrant Posted December 20, 2009 Share Posted December 20, 2009 Has anyone on here worked on the Bedford MJ main gearbox? I need to change the main gearbox output shaft oil seal. Thanks to a member on here I have 2 very nice brand new seals for the job. Just waiting for some warmer weather. Has anyone got any experience of changing these or any workshop materiel describing the job? Thanks in advance. Loggy, Not a big job. First drain the gearbox, Remove propshaft at front end and support. You will see a bolt secured by a tab washer and a large thick washer securing the output flange, remove bolt and flange. You might need a puller to remove the flange, depends on your luck. Unbolt the rear cover, knock out the old seal. Fit a new seal and use a plate or hardwood block, then knock in with a hammer, this saves misshaping the seal. Fit seal flush with cover outer face. smear a bit of light grease around the lip to help it before oil gets to it. Refit cover using jointing compound, and rest in reverse order. Don't forget to refill gearbox oil. Quote Link to comment Share on other sites More sharing options...
LoggyDriver Posted December 20, 2009 Author Share Posted December 20, 2009 Loggy, Not a big job. First drain the gearbox, Remove propshaft at front end and support. You will see a bolt secured by a tab washer and a large thick washer securing the output flange, remove bolt and flange. You might need a puller to remove the flange, depends on your luck. Unbolt the rear cover, knock out the old seal. Fit a new seal and use a plate or hardwood block, then knock in with a hammer, this saves misshaping the seal. Fit seal flush with cover outer face. smear a bit of light grease around the lip to help it before oil gets to it. Refit cover using jointing compound, and rest in reverse order. Don't forget to refill gearbox oil. Thanks Richard. I sort of guessed that was the procedure. Is there supposed to be a gasket to seal the output flange cover to the gearbox or do they just use instant gasket? I might buy a gasket sheet and cut one out if I do need one? Cheers mate. Quote Link to comment Share on other sites More sharing options...
Richard Farrant Posted December 20, 2009 Share Posted December 20, 2009 (edited) Thanks Richard. I sort of guessed that was the procedure. Is there supposed to be a gasket to seal the output flange cover to the gearbox or do they just use instant gasket? I might buy a gasket sheet and cut one out if I do need one? Cheers mate. ** It is sometime since I pulled one apart, but the manual does not mention a gasket (****), only to use jointing compound. I recommend Hylomar Blue, as I'm not a lover of those silicone sealers. A thin paper joint would do no harm, check if any of the bolt holes go right through, if they do, put a bit of sealer on the thread else oil will creep out. **** just had another look and further in the manual it does mention fitting a gasket Edited December 20, 2009 by Richard Farrant added re. gasket Quote Link to comment Share on other sites More sharing options...
Stone Posted December 20, 2009 Share Posted December 20, 2009 Full instructions with diagrams are in the manuals, 'Repair Instructions 2' chap 3. Shout if you've lost them and I'll send you the link again Stone Quote Link to comment Share on other sites More sharing options...
LoggyDriver Posted December 22, 2009 Author Share Posted December 22, 2009 Full instructions with diagrams are in the manuals, 'Repair Instructions 2' chap 3. Shout if you've lost them and I'll send you the link again Stone Still got them mate. Just had a look, and yes it does mention the job:) (must be getting lazy):-D Quote Link to comment Share on other sites More sharing options...
protruck Posted December 22, 2009 Share Posted December 22, 2009 Hi Loggy. There is no gasket on the gearbox drawing. try using Loctite 574 multigasket, but don't go too made with it, you only need a thin bead around the housing. hope this is of some help. Clive .................................. protruckservices.com Quote Link to comment Share on other sites More sharing options...
recymech66 Posted December 22, 2009 Share Posted December 22, 2009 What you really need is a REME jobcard gasket. Quote Link to comment Share on other sites More sharing options...
LoggyDriver Posted December 22, 2009 Author Share Posted December 22, 2009 What you really need is a REME jobcard gasket. Nice to know REME uses Genuine Parts!!:cool2::-D Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.