alittlebitfrench Posted November 11, 2017 Share Posted November 11, 2017 OK, last job on my Saab restoration.The electric window works but does not close the window fully. So I have to pull up the window into place. About 2 inches. No big deal, but I would like to fix itTo work out why, I stripped the inside of the door back and found that the teeth of the gear that raises the window are worn. Maybe the last 4-5...or less.You can buy the gear 'part' (60 squid).....but to replace it the whole mechanism needs to come out and the rivets holding it in place need to be drilled out. Not something I want to do.So the question of the day is, can I repair/replace the last worn 4-5 gear teeth with something. This is the challenge for the day if you choose to accept it. Link to comment Share on other sites More sharing options...
Théière Posted November 11, 2017 Share Posted November 11, 2017 Easier to change the whole compensator mechanism with one from a scrap yard. Otherwise build the teeth back up with a TIG welder and file back into shape. Link to comment Share on other sites More sharing options...
Chancer Posted November 11, 2017 Share Posted November 11, 2017 I have built the teeth up by gas welding and then filing on a TR7 which worked OK, alternativeley there is probably a paortion of the quadrant that does not get engaged in the travel of the window, you ay be able to seperate, realign or reverse the quadrant or do a cut n shut welding in the unused portion in place of the worn piece, that would be better than building up with weld which anneals the teeth. Link to comment Share on other sites More sharing options...
Théière Posted November 11, 2017 Share Posted November 11, 2017 Hi Chancer that's why I suggested TIG because you can use a hard facing electrode to build up.All good suggestions though. Careful if you move the quadrant that it doesn't make contact with something else. Link to comment Share on other sites More sharing options...
cajal Posted November 11, 2017 Share Posted November 11, 2017 [quote user="alittlebitfrench"]This is the challenge for the day if you choose to accept it.[/quote]Buy yourself a 3D printer. Job done. Link to comment Share on other sites More sharing options...
Chancer Posted November 11, 2017 Share Posted November 11, 2017 Yeah right! Might as well make a new one out of cheese! I have just thrown away a bench vice where the acme nut was made of it. Link to comment Share on other sites More sharing options...
Chancer Posted November 11, 2017 Share Posted November 11, 2017 Whilst cheese gear teeth wont be up to the job I clearly am out of touch of how much the price of 3D printers has dropped: http://www.dailymail.co.uk/news/article-5072961/Aldi-launches-3D-PRINTER-Christmas.html Link to comment Share on other sites More sharing options...
nomoss Posted November 11, 2017 Share Posted November 11, 2017 How much does one cost which prints in high tensile steel, please? Link to comment Share on other sites More sharing options...
grumpyaudeman Posted November 11, 2017 Share Posted November 11, 2017 HiAs clock repairer/restorer its quite easyFile of the old point saw/file a deep slot, insert a brass strip, solder /silver solder/braze / But if aluminium casting superglue and file to shape Link to comment Share on other sites More sharing options...
AnOther Posted November 12, 2017 Share Posted November 12, 2017 Still trying to figure out what I'm going to do with all those home made threepenny pieces Link to comment Share on other sites More sharing options...
Théière Posted November 12, 2017 Share Posted November 12, 2017 [quote user="AnOther"]Still trying to figure out what I'm going to do with all those home made threepenny pieces [/quote]File some more corners and call em £1 [:D] now tha't real inflation! Link to comment Share on other sites More sharing options...
alittlebitfrench Posted November 12, 2017 Author Share Posted November 12, 2017 Thank you all. Reversing the gear is a good shout Chancer. Never thought of that. Link to comment Share on other sites More sharing options...
Chancer Posted November 12, 2017 Share Posted November 12, 2017 If you have as many homemade half crowns as threepenny bits you could alternate them, very popular at the moment [:D] Link to comment Share on other sites More sharing options...
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