Car Guy
04-18-2013, 10:48 PM
Here is my dilemma: I'm trying to replace all 5 (4 doors + tailgate) door lock actuator motors on a 1997 LX 450 (a.k.a. Toyota Land Cruiser). I found motors that are identical in every way other than the shafts NOT having knurling like the factory pieces. That is where I need some input.....
I need ideas for securing the BRONZE worm gear to the shaft. The smooth part of the shaft is 2mm and has almost zero play between the inside of the worm gear. I experimented with marring an old shaft to replicate some sort of knurling to no avail. I was able to file grooves in an old shaft fairly easily and thought that might help somehow someway.
With the shaft not having knurls for grip some sort of securing agent is needed to keep the worm gear from spinning on the shaft. I thought of JB Weld, permanent thread lock, solder, epoxy, etc. These motors are small but have a lot of torque and constantly get slammed back and forth. Somebody mentioned heating and/or welding both parts but as far as I know that is not a realistic method.
If you wonder why I don't buy new or used replacements that answer comes down to $$$ and reliability. Used parts are a total crap shoot and for the money they demand not worth the chance. Only Toyota makes new replacements and those cost close to $1,000 for all 5 !!!
At this point I'm looking for ANY ideas with this.....
http://i44.photobucket.com/albums/f3/KarGuy/20130418_161532_zps54bbe691.jpg
http://i44.photobucket.com/albums/f3/KarGuy/20130418_161648_zpsea572037.jpg
I need ideas for securing the BRONZE worm gear to the shaft. The smooth part of the shaft is 2mm and has almost zero play between the inside of the worm gear. I experimented with marring an old shaft to replicate some sort of knurling to no avail. I was able to file grooves in an old shaft fairly easily and thought that might help somehow someway.
With the shaft not having knurls for grip some sort of securing agent is needed to keep the worm gear from spinning on the shaft. I thought of JB Weld, permanent thread lock, solder, epoxy, etc. These motors are small but have a lot of torque and constantly get slammed back and forth. Somebody mentioned heating and/or welding both parts but as far as I know that is not a realistic method.
If you wonder why I don't buy new or used replacements that answer comes down to $$$ and reliability. Used parts are a total crap shoot and for the money they demand not worth the chance. Only Toyota makes new replacements and those cost close to $1,000 for all 5 !!!
At this point I'm looking for ANY ideas with this.....
http://i44.photobucket.com/albums/f3/KarGuy/20130418_161532_zps54bbe691.jpg
http://i44.photobucket.com/albums/f3/KarGuy/20130418_161648_zpsea572037.jpg