1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Engine builders! How does this look. Run away 56K

Thread Tools
 
Search this Thread
 
Old Mar 27, 2012 | 03:14 PM
  #1  
Jingkun's Avatar
Thread Starter
Your brain on triangles..
Tenured Member 05 Years
iTrader: (4)
 
Joined: Dec 2010
Posts: 379
Likes: 0
From: Cedar Park, Texas
Engine builders! How does this look. Run away 56K

Everything still has yet to go through the parts washer and checked for spec but aside from that if all looks good then I'm just in for a new set of rotor bearings.
Bought this engine for $25 in March of '11 so if its crap no loss and if its gold then sweet.










Last edited by Jingkun; Mar 27, 2012 at 03:16 PM.
Reply
Old Mar 27, 2012 | 03:17 PM
  #2  
j9fd3s's Avatar
Moderator
Community Builder
Liked
Loved
Community Favorite
iTrader: (3)
 
Joined: Mar 2001
Posts: 31,833
Likes: 3,232
From: https://www2.mazda.com/en/100th/
center and rear irons are toast, i see burn marks, which means the rotor might be bad too.

rotor housings look great though, and that is the hard part
Reply
Old Mar 27, 2012 | 03:31 PM
  #3  
Jingkun's Avatar
Thread Starter
Your brain on triangles..
Tenured Member 05 Years
iTrader: (4)
 
Joined: Dec 2010
Posts: 379
Likes: 0
From: Cedar Park, Texas
Yeah from what I could tell the engine spun a bearing on the rear rotor. I believe the rotor itself is fine but they're both caked at the moment so I figured I'd save judgement on that till they were washed. Apex and side seals all look mint though.
Reply
Old Mar 27, 2012 | 03:40 PM
  #4  
flight_of_pain's Avatar
its supposed to do that
Tenured Member 20 Years
 
Joined: Jan 2003
Posts: 1,352
Likes: 2
From: PNW
Set your camera to "macro" focus mode and re-take all the pictures.
Reply
Old Mar 27, 2012 | 03:45 PM
  #5  
Jingkun's Avatar
Thread Starter
Your brain on triangles..
Tenured Member 05 Years
iTrader: (4)
 
Joined: Dec 2010
Posts: 379
Likes: 0
From: Cedar Park, Texas
lol I dont think my phone has that, I'll try to retake all of them in a little bit here, should be up in a couple hours. How about 3D pictures <.<
Reply
Old Mar 27, 2012 | 05:05 PM
  #6  
Jingkun's Avatar
Thread Starter
Your brain on triangles..
Tenured Member 05 Years
iTrader: (4)
 
Joined: Dec 2010
Posts: 379
Likes: 0
From: Cedar Park, Texas
In order: housing, housing, housing, front iron, front of center iron, rear of center iron, rear iron, rear rotor side a, rear rotor side b, apex seals










Reply
Old Mar 27, 2012 | 11:45 PM
  #7  
Jingkun's Avatar
Thread Starter
Your brain on triangles..
Tenured Member 05 Years
iTrader: (4)
 
Joined: Dec 2010
Posts: 379
Likes: 0
From: Cedar Park, Texas
So are those good enough to verify scorch/burn marks or do I need to retake again? Don't know why I dropped in the apex seals though.
Reply
Old Mar 27, 2012 | 11:57 PM
  #8  
GoodfellaFD3S's Avatar
Original Gangster/Rotary!
Veteran: Army
Tenured Member: 25 Years
Liked
Loved
iTrader: (213)
 
Joined: Mar 2001
Posts: 30,800
Likes: 646
From: FL-->NJ/NYC again!
I agree with what j9 posted about the rotor housings looking good and the irons looking like trash.

Apex and side seals looking 'mint' doesnt mean much. How many miles are on them? I'd be willing to bet most of not all are out of clearance.

Definitely have new main (stationary gear) bearings installed along with the rotor bearings.
Reply
Old Mar 28, 2012 | 12:14 AM
  #9  
flight_of_pain's Avatar
its supposed to do that
Tenured Member 20 Years
 
Joined: Jan 2003
Posts: 1,352
Likes: 2
From: PNW
As posted above, I agree the housing look plenty useable. Those irons are trashed. You wont know on the rotors until you measure. I have had beautiful looking rotors with trashed apex seal slots, and rusty, crappy looking rotors that specced out just fine.

Isaac
Reply
Old Mar 28, 2012 | 12:35 AM
  #10  
rxtasy3's Avatar
Moderator
Tenured Member: 20 Years
iTrader: (2)
 
Joined: Jun 2002
Posts: 9,579
Likes: 290
From: Spartanburg, SC
Originally Posted by Jingkun
lol I dont think my phone has that
keep the phone for talking and texting and buy a camera for taking pix. that way u chose a setting so the pix aren't so big u have to scroll the page left to right to see the whole thing and u can see if it's clear enough before posting. now with that said, i agree with the others. rotor housings look good enough to reuse but u'll need to find another set of irons. and replace all the metal seals and springs with new. u plan on doing any port work?
Reply
Old Mar 28, 2012 | 12:39 AM
  #11  
rxtasy3's Avatar
Moderator
Tenured Member: 20 Years
iTrader: (2)
 
Joined: Jun 2002
Posts: 9,579
Likes: 290
From: Spartanburg, SC
after taking a second look, does that one rotor housing have a groove wore into it at the outer edge?
Reply
Old Mar 28, 2012 | 01:26 AM
  #12  
Jingkun's Avatar
Thread Starter
Your brain on triangles..
Tenured Member 05 Years
iTrader: (4)
 
Joined: Dec 2010
Posts: 379
Likes: 0
From: Cedar Park, Texas
I believe it is, if it matters any it appears to go all around the housing with no deviating lines. Just one solid loop.
Reply
Old Mar 28, 2012 | 01:28 AM
  #13  
Jingkun's Avatar
Thread Starter
Your brain on triangles..
Tenured Member 05 Years
iTrader: (4)
 
Joined: Dec 2010
Posts: 379
Likes: 0
From: Cedar Park, Texas
As for port work I was thinking about going either street or bridge but was starting to settle at street the more I thought about it. also had i made the pictures smaller, would you have seen the groove?
Reply
Old Mar 28, 2012 | 11:26 AM
  #14  
j9fd3s's Avatar
Moderator
Community Builder
Liked
Loved
Community Favorite
iTrader: (3)
 
Joined: Mar 2001
Posts: 31,833
Likes: 3,232
From: https://www2.mazda.com/en/100th/
that rotor is probably bad too...
Reply
Old Mar 28, 2012 | 11:38 AM
  #15  
rxtasy3's Avatar
Moderator
Tenured Member: 20 Years
iTrader: (2)
 
Joined: Jun 2002
Posts: 9,579
Likes: 290
From: Spartanburg, SC
Originally Posted by Jingkun
I believe it is, if it matters any it appears to go all around the housing with no deviating lines. Just one solid loop.
in that case ur left with only one good rotor housing. and yes, with smaller pix i probably still would have seen it. the outer edge is the first place i look cause it,s where all the chrome starts flaking.
Reply
Old Apr 3, 2012 | 06:56 AM
  #16  
Jingkun's Avatar
Thread Starter
Your brain on triangles..
Tenured Member 05 Years
iTrader: (4)
 
Joined: Dec 2010
Posts: 379
Likes: 0
From: Cedar Park, Texas
So this randomly started bothering me again this morning. Went to double check and it isn't a groove, but it is uneven wear.
Reply
Old Apr 4, 2012 | 01:01 PM
  #17  
81WideMariah's Avatar
Slave to the Rotor!
Tenured Member 05 Years
iTrader: (8)
 
Joined: Jul 2006
Posts: 849
Likes: 2
From: Orlando/Winter Park
Personally, I'd never reuse a rotor that spun a bearing. Nothing sucks more than tearing a fresh rebuild apart again for a spun bearing. If the bearing spun, you're likely going to need a new E-Shaft, so you'll have to balance the assembly anyways, why chance it. Especially with those nice housings.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
trickster
2nd Generation Specific (1986-1992)
25
Jul 1, 2023 04:40 PM
tsmith94FD
3rd Generation Specific (1993-2002)
4
Aug 16, 2015 05:41 PM
KAL797
Test Area 51
0
Aug 11, 2015 03:47 PM




All times are GMT -5. The time now is 07:30 PM.