disco tony Posted July 19, 2007 Share Posted July 19, 2007 stu666 has developed some pin holes in his front diff pan. I drained the oil, cleaned up a bit, set the mig to very low amps and managed to dump some pidgeon poo over the holes. The diff pan is very thin and I advised stu it would only be a temporary repair. Question is, has anyone fitted one of those paddocks diff pans? does the old pan need grinding off or can the new one be fitted over the top? why do they sell one with no filler hole? sorry for so many questions but couldn't find anything in tech archives. Tony Quote Link to comment Share on other sites More sharing options...
Astro_Al Posted July 19, 2007 Share Posted July 19, 2007 Some diffs have the filler plug on the casing of the axle, others on the casing of the actual diff. Obviously if your diff unit has no hole, you can't welding in a diff pan without one (unless you add one). If you're going to bother doing all that, why not beef it up a bit - look up 'sewer capping' on this forum. Al. Quote Link to comment Share on other sites More sharing options...
will_warne Posted July 19, 2007 Share Posted July 19, 2007 Some diffs have the filler plug on the casing of the axle, others on the casing of the actual diff. Obviously if your diff unit has no hole, you can't welding in a diff pan without one (unless you add one).If you're going to bother doing all that, why not beef it up a bit - look up 'sewer capping' on this forum. Al. Or have a word with Paul Wightman. He made some very nice 5mm ones a few months ago and he may have some left. IMHO its a far neater solution than using diff gaurds. Quote Link to comment Share on other sites More sharing options...
kiall Posted July 20, 2007 Share Posted July 20, 2007 ive done it on my front diff make sure and clean everydrop out of the diff ass it warms up and gets in the welding area , make sure u spend alot of time cleaning up the surface and the new diff as its coated in a thick black paint , then i cleaned a very good earth then started , i got it all in the right place then tacked at 12 , 3 , 6 , 9 , then i welded about 1" then moved to opposite are then welded and do it like that as i noticed that the heat was very quick distorting the pan, also leave in the filler plug to hold the shape Quote Link to comment Share on other sites More sharing options...
disco tony Posted July 20, 2007 Author Share Posted July 20, 2007 ive done it on my front diff make sure and clean everydrop out of the diff ass it warms up and gets in the welding area , make sure u spend alot of time cleaning up the surface and the new diff as its coated in a thick black paint , then i cleaned a very good earth then started , i got it all in the right place then tacked at 12 , 3 , 6 , 9 , then i welded about 1" then moved to opposite are then welded and do it like that as i noticed that the heat was very quick distorting the pan, also leave in the filler plug to hold the shape Mig, tig or gas? anyone got any thoughts about brazing a new one on? (traditional brazing not mig brazing) Quote Link to comment Share on other sites More sharing options...
Steve Hiatt Posted July 20, 2007 Share Posted July 20, 2007 I bought one from Simmonites and arc welded it on. It didn't distort at all. I agree with Will, far better than a diff guard. Quote Link to comment Share on other sites More sharing options...
Bull Bar Cowboy Posted July 21, 2007 Share Posted July 21, 2007 I used the MIG …………. With a little preheat first ……….this one is HD 4mm Ian Quote Link to comment Share on other sites More sharing options...
Bull Bar Cowboy Posted July 21, 2007 Share Posted July 21, 2007 Take out the diff, cut the old pan off, and grind the old lip back to the axle case cast steel........... I used the MIG …………. With a little preheat first ……….this one is HD 3mm ........... I think Std is 1.5 or 2mm Ian Quote Link to comment Share on other sites More sharing options...
gruntus Posted July 23, 2007 Share Posted July 23, 2007 What a Git, I wish I could weld like that Nice job! G Quote Link to comment Share on other sites More sharing options...
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