Question 1 What is that? Question 2 How did that happen?
#1
Question 1 What is that? Question 2 How did that happen?
i just pulled apart the 12 that died on me. found 2 sideseals stuck in,Spun Bearing,Center iron has bad burns and groves and the rotor side had deep scratches. (see pictures) the center iron is not just discolored,it is groved where the blue is .. HOW ? and this maybe a normal but i have never seen a 12 housing with that hole under the exhaust port (see pic) i have 6 sets and none are like that.
#6
Super Moderator
iTrader: (3)
I agree with the lack of oil thing. Just because the oil was in the pan, doesn't mean it was getting where it was needed. Could be something like a clogged passageway or a failed oil pump. Check that stuff out closely. I would also check the oil cooler, oil cooler lines, and oil cooler t-stat.
Also check the pickup tube (clogged screen, pinhole in side of tube, or poor sealing of gasket). On those last two items, it would be like using a straw that has a hole in it (doesn't work too well).
Check/clean anything oil related on that engine before putting it back together. You don't want to kill another engine by reusing a bad part.
Also check the pickup tube (clogged screen, pinhole in side of tube, or poor sealing of gasket). On those last two items, it would be like using a straw that has a hole in it (doesn't work too well).
Check/clean anything oil related on that engine before putting it back together. You don't want to kill another engine by reusing a bad part.
#7
1st-Class Engine Janitor
iTrader: (15)
Possibly a plugged oil passage inside the e-shaft or the passage from the rear bearing that feeds it... since the rotor bearings and side oil seals get their oil feed from there. A plugged e-shaft feed would let one rotor or both rotors run dry, depending on where it was plugged.
Did the other rotor look the same?
Yep, front rotor housing from a pre-cat smog motor, probably a Cali-spec SA.
Did the other rotor look the same?
Yep, front rotor housing from a pre-cat smog motor, probably a Cali-spec SA.
Trending Topics
#8
Back in the saddle again
iTrader: (2)
another piece could be oil starved from previous, just because it is full now doesn't mean it always was, the original damage could have come from a long time back. A spun bearing can cause all kinds of problems including a large side load on the rotor which will cause side plate grooving
#9
Moderator
iTrader: (3)
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,826
Received 2,593 Likes
on
1,842 Posts
pics of the other side of the rotor would tell this, but its possible the rotor gear came out too
#10
Thread
Thread Starter
Forum
Replies
Last Post
rgordon1979
3rd Generation Specific (1993-2002)
40
03-15-22 12:04 PM
Jeff20B
1st Generation Specific (1979-1985)
73
09-16-18 07:16 PM
troym55
3rd Generation Specific (1993-2002)
23
05-25-16 12:42 PM
Nosferatu
2nd Generation Specific (1986-1992)
7
09-05-15 02:13 PM