View Single Post
Old 08-17-2018, 08:32 PM   #139 (permalink)
Batman Junior
MetroMPG's Avatar
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,463

Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 55.97 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 70.75 mpg (US)

Appliance car - '14 Mitsubishi Mirage ES (base)
90 day: 61.17 mpg (US)
Thanks: 4,000
Thanked 6,899 Times in 3,579 Posts
Miata drum brake conversion!!

Holding water!

So, I got the water pump in. (Man, that was a stupidly big job.) Radiator is topped up, test started, and nothing's leaking. Haven't got it up to operating temp yet, but I'm sure it'll be fine.

But what about brake drag!?

With the size of the aftermarket for these cars, surely someone sells a low-drag Miata disc-to-drum conversion kit, right? Surely?

I told myself I wasn't going to do any more mods to the MPGiata this summer due to chronic TMFP (Too Many Projects!!).

But I've always hated how much harder this car is to push around the driveway than the Firefly/Metro, considering they're within a hundred pounds of each other. And it just doesn't seem to coast well at low speed.

I could even hear that telltale quiet "grumble" of the pads dragging on the rotors when rolling at very low speed.

So I caved in and pulled the slider pins out of one of the front calipers this evening, and one of the pair absolutely did NOT deserve the name of "slider". So sticky! Nearly seized, really. Anyway, it's all cleaned up and everything floats/moves much better. Only 3 more calipers to go!

Also I noticed there were no springs in there, like this Miata (D):


Need to get me some of that!
Attached Thumbnails
Click image for larger version

Name:	Miata%20Brake%20Job%20120311%20(9).JPG
Views:	426
Size:	118.5 KB
ID:	24697  
Project MPGiata! Mods for getting 50+ MPG from a 1990 Miata
Honda mods: Ecomodding my $800 Honda Fit 5-speed beater
Mitsu mods: 70 MPG in my ecomodded, dirt cheap, 3-cylinder Mirage.
Ecodriving test: Manual vs. automatic transmission MPG showdown

has launched a forum for the efficient new Mitsubishi Mirage - fuel efficiency info for Geo Metro owners - electric car conversion on a beer budget
  Reply With Quote