Jump to content
Wallfish

Bridges MINI MOTA drill refresh

Recommended Posts

Picked another easy quick one to do and sticking with the imports for now. Had 2 of these sent over a while ago and also sold the other one to Jim @usedtoolman with the Turbair TOT. 

 It basically needs a good cleaning but while it's disassembled, might as well go through the engine thoroughly and give it a good freshening up with new seals and gaskets. The gearbox gasket is leaking so a replacement for that will be made. The recoil was already done a long time ago when it was received.

Never knew they're supposed to have handle grips until other pics were posted with them. An interesting drill because the chuck is repositioned into one of 3 different locations on the gearbox to change the rotation speed.

Wait until you see the chrome cleaned up using Aluminum foil. It works wonders on these chrome handles and parts and it's quick and simple. These are in good condition to begin with but even some tough ones have been saved too.

 

IMG_0555.JPG.873c3d943989aa7f83fff244be0b4c6e.JPGIMG_0556.JPG.75527ce513e5cf66e9f945560df881b2.JPG

Share this post


Link to post
Share on other sites

Nice one That will look good you must have a little time on your hands . I guess I'm just going to book a trip across the pond

that's ware the good stuff seems to be.

Share this post


Link to post
Share on other sites

David and Paul already sucked up all the good stuff!

As far as gems go, it all evens out in the wash. You guys have some stuff I don't.

Share this post


Link to post
Share on other sites

Started with the gearbox. It's not bad at all since the original grease in there is still very soft. The 2 gaskets are very dry and brittle and broke coming out. I'll have to make some replacements. Luckily the 3 shaft seals for the chuck are soft and pliable, think they're still good so I'll just use them since finding a replacement would be difficult.IMG_0465.JPG.e4eb8b1395fabfc701395e956c073d32.JPG

 

IMG_0466.JPG.6f8d99de2787c5af824f5c10abc460d8.JPG

 

IMG_0469.JPG.2a4212e176bb9359310607c0953b992d.JPG

 

IMG_0470.JPG.43272022b65149b0886243304c0c3bc2.JPG

 

IMG_0471.JPG.94bc87a6ada71be96f637791a38fa176.JPG

Share this post


Link to post
Share on other sites

The handle grips are often missing on these drills.

If you haven't seen it I posted the manual a while back here (section 4);

1616057386_Bridges3SpeedMiniMotaDrillGearBox.jpg.45378d23b30f11a7c21081d7ef9b3156.jpg

 

Shame it doesn't give individual part numbers for the bearings & seals.

 

David

Share this post


Link to post
Share on other sites

Thanks for posting that manual. Did find that yesterday because I was looking for a washer/bearing for the main gear #214. It keeps rubbing on the metal plate #213.

It binds the gears when closed tight but that seems to be because the new gasket I made it just a little too thin. Found some better material to make a new one today.

Share this post


Link to post
Share on other sites

So the gear box was little bit of a pain. Getting the gaskets right took some time and ended up cutting quite a few until it was right. (looks like someone threw confetti in my office now) A gear was rubbing on the metal separation piece then something was binding just a bit when all of the screws were tight. Nice and smooth now. This engine was done and gone through already because the gaskets looked new, inside was clean as a whistle and still some engine assembly grease noticeable around the bearings. Compression is so good there was a question whether or not to even open the engine but it was worth checking anyway. I must've quit at the gearbox because of the need for making gaskets as the gearbox definitely wasn't gone through before.

 

IMG_0478.JPG.9de3f031772bfa31857bde0282580d9c.JPG

 

IMG_0479.JPG.afb5e1c4a287269f83b7127b3b19d9fb.JPG 

Share this post


Link to post
Share on other sites

Good to see it back together after all the trouble with that gearbox, hopefully no bits left over, nice & shiny too. :thumbs:

 

David

Share this post


Link to post
Share on other sites

It threads into each separate hole. There's a small slot in the front edge of the gearbox and there's a hole in the spindles which hold the chuck. A small rod (1/8" ?) slides into the hole and the slot holds it firm so the chuck can be unscrewed with a wrench.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×
×
  • Create New...