4-Rotor FB Build (side ports!!)
Thread Starter
Joined: Aug 2001
Posts: 15,725
Likes: 91
From: Near Seattle
Ever look down at your stat gear through the feed hole? Ever see a nasty edge just begging for some Dremel love?
These took some time to cut. Oh is that a color other than black or cast coat iron?
These took some time to cut. Oh is that a color other than black or cast coat iron?
Sure, I'm well aware of the trick and have had some success with it in the past. But these are 1.00 thread pitch. I didn't have any steel nuts this fine. Only one brass nut from a choke or something. It was not up to the task so I had to just go for it the manual way. When I was done only about 2/5 of the bolt circumference in one thread had to be cleaned up with a tiny file and a box cutter blade. The steel winds up folding over itself within the thread from the grinding/wire wheeling.
Joined: Jun 2008
Posts: 8,376
Likes: 28
From: Chino Hills, CA
He's getting ready to launch a national t-shirt line. Maybe he should buy your "MLTF" version off you?
Thread Starter
Joined: Aug 2001
Posts: 15,725
Likes: 91
From: Near Seattle
^That's not mine. I found it on the internet.
Ok I've trolled you guys long enough.
It's no mock up. This is during the build.
Hey Divin, this R5 plate is the same as yours.
PercentSevenC will like this. Check out that green intermediate plate. It has secondaries. Yes actual secondaries!
I don't know about that waterpump... Red touching orange?
That waterpump...
Ok I've trolled you guys long enough.
It's no mock up. This is during the build.
Hey Divin, this R5 plate is the same as yours.
PercentSevenC will like this. Check out that green intermediate plate. It has secondaries. Yes actual secondaries!
I don't know about that waterpump... Red touching orange?
That waterpump...
..can't wait to see what the intake is going to look like..
Joined: Jun 2008
Posts: 8,376
Likes: 28
From: Chino Hills, CA
Hey Divin, this R5 plate is the same as yours.
It's also eggplant.
The overall effect is, I must admit, unique. Made me think of 5-flavor Life Savers:
Joined: Jun 2008
Posts: 8,376
Likes: 28
From: Chino Hills, CA
The general rule for common structural metric fasteners is that the nut size is 1.8 times the diameter of the threaded shaft rounded up to the nearest millimeter, so since that nut came off with a 10mm wrench, odds are that the stud is RNDUP (1/1.8)*10) = 6mm. Maybe the studs just slide on past the threads, & I never noticed them.
Can't really tell for sure from this pic, but it doesn't look to have any threads down in there...
Thread Starter
Joined: Aug 2001
Posts: 15,725
Likes: 91
From: Near Seattle
And again it's not just the 80 SA that has the short type pedestal, as you know. All 79s had a tall pedestal (is that right?) and all non-beehive FBs had shorties. All FCs had them too, but they all had threaded holes at 8mm x 1.25 as well. Heck the 20B had 'em too. Even an FD rear plate has them. Only the pedestal itself is different as both route the oil feed from the cooler into the pedestal directly (it made room for an auto starter located in front of the flex plate for the Cosmo and they just kept the casting for the FD).
Also from that last pic, sure it's a jpeg and can't really be blown up, but it looks like threads to me.
Notice how it looks similar to the threaded holes on top of the rear plate which old an inspection cover? These holes have blind ending and are not threaded all the way through like Y plates. You clean enough of these and you start to remember stuff like this.
Face it. You and I have the exact same model rear plates. That means my 4 rotor has an 80 CA spec part in it! Feel proud!
Nice looking 12A there, by the way.
Also from that last pic, sure it's a jpeg and can't really be blown up, but it looks like threads to me.
Notice how it looks similar to the threaded holes on top of the rear plate which old an inspection cover? These holes have blind ending and are not threaded all the way through like Y plates. You clean enough of these and you start to remember stuff like this.Face it. You and I have the exact same model rear plates. That means my 4 rotor has an 80 CA spec part in it! Feel proud!
Nice looking 12A there, by the way.
Joined: Mar 2001
Posts: 31,833
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From: https://www2.mazda.com/en/100th/
the 79 model has the tall style 0839-23-801, and the 80 model up is the short style 8341-14-310. the tall has 2 8mm studs and 12mm nuts, and the short is 6mm studs and 10mm nuts... the short is an 80-91 part, the FD and cosmo use a different part
Joined: Jun 2008
Posts: 8,376
Likes: 28
From: Chino Hills, CA
