Mazda Rotary Club

Cars by Model Type => 3rd generation RX-7's => Topic started by: Archbish on December 20, 2009, 04:47:06 PM

Title: Archbish\'s FD refresh...
Post by: Archbish on December 20, 2009, 04:47:06 PM
So, having got the first gen on the road as a bit of a weekend noisy rat, it\'s time to start playing with the FD...

My wife has got me an engine hoist for xmas, so it\'s going to be a case of stripping down the engine ready for removal.  So far, the turbo pack is off, the UIM, LIM and bits & pieces are out.

The original idea was to refresh the engine, but this is starting to become a bit more of an attempt to have a nice, smooth, tidy GT cruiser type.  So a nice interior, a bit of cash spent on the paint, single GT35/40 turbo, V-mount or front mount, and ideally quiet and smooth.  As a nice cruiser, it will be retaining stereo, aircon, friendly suspension and bushes.

so any hints for suspension, bushes, and how to make a GT35 audibly smooth while retaining power, it\'s all more than welcome!!
Title: Archbish\'s FD refresh...
Post by: Ada7 on December 20, 2009, 04:59:55 PM
Nice work in getting that all off mate. When i got my engine out i just undone all the loom and lifted it all out as a whole thing (minus gearbox) and then stripped it down. Was so easy to get everything off that way :D
Plus one of the lifting points is on the UIM :p

Adam
Title: Archbish\'s FD refresh...
Post by: Nik da Greek on December 20, 2009, 06:10:50 PM
Quote from: Archbish;660591So, having got the first gen on the road as a bit of a weekend noisy rat, it\'s time to start playing with the FD...

About time :Giggle

Quote from: Archbish;660591My wife has got me an engine hoist for xmas

Wow! I don\'t think my wife even knows what an engine hoist actually is, let alone is ever likely in a million years to buy me one for xmas :mad: [/slightly jealous]
Title: Archbish\'s FD refresh...
Post by: Archbish on December 20, 2009, 07:05:15 PM
yup, I\'ve no doubt that lifting the whole lot out and working on it then would be easier, but then I\'ll have to wait til xmas day before getting stuck in.  I couldn\'t wait...

And she didn\'t until I told her what I wanted - but it\'s now sitting in the hallway (in the box) with a bow on it...

am FREEEEEEEEZING as a result, but tis very satisfying!!
Title: Archbish\'s FD refresh...
Post by: batman on December 20, 2009, 08:15:40 PM
bish sell me the gt35 then you ll have peace and quiet >:P
Title: Archbish\'s FD refresh...
Post by: Archbish on December 20, 2009, 08:50:52 PM
:D I see...  Gotta buy the damned thing first - appreciate your selfless offer tho dude, thanks!! *grin*
Title: Archbish\'s FD refresh...
Post by: batman on December 20, 2009, 09:37:28 PM
im ready sniff i ll take one for the team
Title: Archbish\'s FD refresh...
Post by: Archbish on June 20, 2010, 04:03:49 PM
so finally got round to getting the engine broken down, and found that the rotors, housing and plates all look to be good.  Very good.  stupidly so.  
"Odd", methinks, "it wouldn\'t start for anything, yet it all looks OK".  
However, I have found the bit below looks like it\'s fubar\'d:
(http://www.archbish.com/pics/3rd%20gen/fd%20engine1-800.jpg)
(http://www.archbish.com/pics/3rd%20gen/fd%20engine2-800.jpg)
(http://www.archbish.com/pics/3rd%20gen/part1-800.jpg)
(http://www.archbish.com/pics/3rd%20gen/part2-800.jpg)
(http://www.archbish.com/pics/3rd%20gen/part3-800.jpg)
now I haven\'t looked into what this bit is, and why this would stop an engine working.  However, everything else is shiny and good (just needs a bloody good clean.  The housings look too good, if anything!  The rear rotorseals are a bit sticky, but freed up easily enough.

Any thoughts??

((other than, well while it\'s out, lets go get a 1/2 bridge...))
Title: Archbish\'s FD refresh...
Post by: Prof on June 20, 2010, 08:30:40 PM
Is that the bearing in the rear iron stationary gear ?
 
Looks like it spun.  It\'s replaceable at least - so that \'s good news ;)
 
Everything look good under the front cover (Torrington bearings, front bearing and so on) ?
Title: Archbish\'s FD refresh...
Post by: Archbish on June 20, 2010, 08:33:13 PM
Yup, everything else looks too good.  Til I saw that, I assumed everything was fine and I\'d broken a perfectly good engine.  Slight scoring on the shaft - reckon it needs replacing?
Title: Archbish\'s FD refresh...
Post by: Brett on June 20, 2010, 08:33:27 PM
As the Prof says - the bearing has spun.

Any damage on the shaft?
Title: Archbish\'s FD refresh...
Post by: Archbish on June 20, 2010, 08:39:32 PM
yeah, slight pitting in places - does that mean it\'s dead?
Title: Archbish\'s FD refresh...
Post by: Prof on June 20, 2010, 11:00:14 PM
Not sure how much you can get away with on the e-shaft - certainly the parts of it that spin in the bearings needs to be in good order.  I am guessing if you have that damage on the bearing - it may have started to wear on the shaft, but the bearing inserts are a lot softer.
 
Any sign that it \'s had oil starvation?
Title: Archbish\'s FD refresh...
Post by: Archbish on June 20, 2010, 11:03:00 PM
and such a sign would be.... ((i\'ve not done an engine of any kind before.  Like "it looks like it spun a bearing" gets a reaction of "Oh, good.  They\'re supposed to spin"....  Turns out a spun bearing is bad!))
Title: Archbish\'s FD refresh...
Post by: Prof on June 20, 2010, 11:16:29 PM
There are oil pathways that guide the oil onto the bearing centre - that\'s the holes you see in the centre - obviously in the ideal world the shaft spins inside the fixed bearing on a film of oil.  If the oil pathway got blocked, or pickup failed for a prolonged period (low oil level, or doing the wall of death maybe ;) ), then the oil flow to the bearing may have stopped, causing the shaft to grip on the bearing and pull it around with it.  But you may see signs of discolouration elsewhere - indicating heating maybe ?
Title: Archbish\'s FD refresh...
Post by: Archbish on June 21, 2010, 06:39:58 AM
Gotcha.  Another thought from a certain builder is the conversion from auto to manual could be the root cause - if the engine wasn\'t balanced, it could cause it to go out of whack...
Title: Archbish\'s FD refresh...
Post by: HaywardRotary on June 21, 2010, 07:45:37 AM
Hi Bish,
The Mazda cast iron flywheels are balanced with the original engines,but also high rpm or low oil in the sump combined with high G cornering could start that problem.
What oil were you using?
Regards
Carl
Title: Archbish\'s FD refresh...
Post by: Prof on June 21, 2010, 07:50:30 AM
Check out the rotary resurection site as well - he\'s got examples of damage, and the likely causes of them - an excellent site for showing what can happen !
 
Although no pics of spun bearings
Title: Archbish\'s FD refresh...
Post by: Prof on June 21, 2010, 07:58:06 AM
This is what happened to someone when a front thrust bearing failed -
 
http://www.aaroncake.net/rx-7/damage.htm
 
I guess all your bearings are good at the front of the engine ?
Title: Archbish\'s FD refresh...
Post by: Archbish on June 21, 2010, 09:15:00 AM
Quote from: HaywardRotary;700556What oil were you using?
Thanks for the reply chief.  Halfords Mineral oil - same as for the previous 5 years...  It was at (high) motorway speeds in france.  Temps started to rise VERY quickly, and when keyed off, the engine cut out straight away.

Quote from: Prof;700558I guess all your bearings are good at the front of the engine ?
I don\'t remember them looking bad, but in strip down, the torringtons and everything looked good.  I\'m going to clean it all this week, and see what it\'s like when clean, grease free, and dry.

talking of which - what liquid to use in my parts washer that I got xmas before last and never unwrapped?  Would Petrol be OK as a degreaser?
Title: Archbish\'s FD refresh...
Post by: Prof on June 21, 2010, 09:18:37 AM
I used that Comma Hyperclean - that stuff is good - really gets the oil, looser carbon and general crud off easily
Title: Archbish\'s FD refresh...
Post by: Archbish on June 21, 2010, 05:27:59 PM
Cool, thanks!

Quick question - what is it with the different sized 13btt stationary bearings???  From Mazdatrix (http://www.mazdatrix.com/b4.htm):

Main Bearings For 93-95 Twin Turbo
Part Number Color Code Bearing Thickness
10-E040-NF01 Yellow 1.980mm = .07795"
10-E050-NF01 Green 1.983mm = .07807"
10-E060-NF01 Brown 1.986mm = .07819"
10-E070-NF01 Black 1.989mm = .07831"
10-E080-NF01 Blue 1.992mm = .07846"
10-E220-NF01 Yellow 1.988mm = .07827"
10-E230-NF01 Green 1.991mm = .07839"
10-E240-NF01 Brown 1.994mm = .07850"
10-E250-NF01 Black 1.997mm = .07862"
10-E260-NF01 Blue 2.000mm = .07874"
Thickest is .07874" (least clearance) minus thinest of .07795" = .00079 TOTAL range --- This is LESS than ONE thou !

Can someone help here?  I\'m replacing an eshaft into a pre-existing stationary gear - howdo I measure 0.02 mm difference?
Title: Archbish\'s FD refresh...
Post by: batman on June 21, 2010, 06:24:28 PM
Quote from: Archbish;700639- howdo I measure 0.02 mm difference?

 
ya penis doubled mate lol sorry couldnt resist:spank
Title: Archbish\'s FD refresh...
Post by: Prof on June 21, 2010, 07:00:10 PM
Dial Gauge, or micrometer, but it\'s curved isn\'t it, so not sure how easy that would be ?
Title: Archbish\'s FD refresh...
Post by: Archbish on June 22, 2010, 12:08:43 AM
Quote from: battyman;700654ya penis doubled mate lol sorry couldnt resist:spank
Well, it was big enough to make your eyes water... :D

Quote from: Prof;700662Dial Gauge, or micrometer, but it\'s curved isn\'t it, so not sure how easy that would be ?
okey chokey...  this\'ll be an interesting challenge *grin*
Title: Archbish\'s FD refresh...
Post by: HaywardRotary on June 22, 2010, 09:09:40 AM
on a shaft that is used but in good condition generally this one will suit,but measure to be sure.
10-E230-NF01 Green 1.991mm = .07839"
Regards
Carl
Title: Archbish\'s FD refresh...
Post by: Archbish on June 26, 2010, 09:59:57 PM
so here\'s the bearing after being removed with a rudimentary drift...
(http://www.archbish.com/pics/3rd%20gen/bearing1.jpg)
(http://www.archbish.com/pics/3rd%20gen/bearing2.jpg)
(http://www.archbish.com/pics/3rd%20gen/bearing3.jpg)
so I would guess this is probably not good.... *grin*

and here\'s the shaft:
(http://www.archbish.com/pics/3rd%20gen/shaft1.jpg)
(http://www.archbish.com/pics/3rd%20gen/shaft2.jpg)
(http://www.archbish.com/pics/3rd%20gen/shaft3.jpg)
Thoughts????
Title: Archbish\'s FD refresh...
Post by: Prof on June 26, 2010, 11:12:02 PM
fecked ? :2eek
Title: Archbish\'s FD refresh...
Post by: batman on June 27, 2010, 06:39:25 PM
Quote from: Prof;701463fecked ? :2eek

 
yup and then some
Title: Archbish\'s FD refresh...
Post by: Archbish on July 04, 2010, 10:51:12 AM
right, so shiny new eshaft, measured up in several places, along with the stationary gear (sans bearing).
- EShaft av diameter is 42.92
- Gear av diameter is 47.02
so to get clearances for different bearings is:

(Gear dia - eshaft dia)/2 - bearing width, right?

so that gives us these clearances:

eshaft,   stationary gear,   bearing thickness,       clearance
42.92,           47.02,                           2,                       0.05
42.92,           47.02,                           1.998,               0.052
42.92,           47.02,                           1.997,               0.053
42.92,           47.02,                           1.994,               0.056
42.92,           47.02,                           1.992,               0.058
42.92,           47.02,                           1.991,               0.059 <- Carl\'s suggestion
42.92,           47.02,                           1.989,               0.061 <-within tol
42.92,           47.02,                           1.986,               0.064 <-within tol
42.92,           47.02,                           1.983,               0.067 <-within tol
42.92,           47.02,                           1.98,                       0.07   <-within tol


Thoughts?? (other than vBulletin is .... at tables)
Title: Archbish\'s FD refresh...
Post by: clive on July 05, 2010, 12:27:42 PM
This may help, the bearings are color coded

1.98mm Yellow
1.983mm Green
1.986mm Brown
1.989mm Black
1.992mm Blue
1.988mm Yellow
1.991mm Green
1.994mm Brown
1.997mm Black
2.00mm Blue
STD A/T
Title: Archbish\'s FD refresh...
Post by: Archbish on September 10, 2010, 07:15:17 PM
so starting to do bits and pieces - thanks to Era for advice, guidance, and general patience with the engine bits.

Been busy with the brushes...
(http://www.archbish.com/Pics/3rd%20gen/sepang1.jpg)
(http://www.archbish.com/Pics/3rd%20gen/sepang2.jpg)
(http://www.archbish.com/Pics/3rd%20gen/sepang3.jpg)
(http://www.archbish.com/Pics/3rd%20gen/sepang4.jpg)
(http://www.archbish.com/Pics/3rd%20gen/sepang5.jpg)
got to spend time on the rest of it, but that will have to wait til another day...

pretty pleased, couple of nicks, needs flatting and polishing, but not bad for someone who does computers... :D
Title: Archbish\'s FD refresh...
Post by: Archbish on January 26, 2011, 07:12:16 PM
so in the slowest engine build ever, we\'re slowly getting there. Problem is blanking plates and getting bits as I go, plus wee man being awesome...
(http://www.archbish.com/pics/3rd%20gen/engine1.jpg)
(http://www.archbish.com/pics/3rd%20gen/engine2.jpg)
(http://www.archbish.com/pics/3rd%20gen/engine3.jpg)
Bit different to the norm - nothing shiny...
Title: Archbish\'s FD refresh...
Post by: Archbish on March 04, 2013, 09:17:42 AM
Righto, so what with life and all getting in the way of important rotary and car stuff, I\'ve finally given up trying to do it and have started shipping it off to have stuff done.

Paintwork completed...
(http://www.archbish.com/pics/3rd%20gen/paint/3rdgen1.jpg)
(http://www.archbish.com/pics/3rd%20gen/paint/3rdgen2.jpg)
(http://www.archbish.com/pics/3rd%20gen/paint/3rdgen3.jpg)
(http://www.archbish.com/pics/3rd%20gen/paint/3rdgen4.jpg)
(http://www.archbish.com/pics/3rd%20gen/paint/3rdgen5.jpg)
(http://www.archbish.com/pics/3rd%20gen/paint/3rdgen6.jpg)
(http://www.archbish.com/pics/3rd%20gen/paint/3rdgen7.jpg)
(http://www.archbish.com/pics/3rd%20gen/paint/3rdgen8.jpg)
(http://www.archbish.com/pics/3rd%20gen/paint/3rdgen9.jpg)
(http://www.archbish.com/pics/3rd%20gen/paint/3rdgen10.jpg)
(http://www.archbish.com/pics/3rd%20gen/paint/3rdgen11.jpg)
(http://www.archbish.com/pics/3rd%20gen/paint/3rdgen12.jpg)
(http://www.archbish.com/pics/3rd%20gen/paint/3rdgen13.jpg)

OK, I\'ll admit, it\'s probably better than I would have done, maybe. At least they didn\'t laugh in my face (as requested) when I dropped it off and collected it...
Title: Archbish\'s FD refresh...
Post by: clive on March 04, 2013, 09:35:29 AM
Good to see your former show winning car back in fine fettle and looking real good.:chat
Title: Archbish\'s FD refresh...
Post by: Archbish on March 04, 2013, 10:12:43 AM
Thanks Clive - looking forward to getting it back on the road.  I think it\'s been off for about 5 years...!!  Going T78 this time... :)
Title: Archbish\'s FD refresh...
Post by: grinder on March 04, 2013, 06:19:02 PM
looking good Bish
Title: Archbish\'s FD refresh...
Post by: Brett on March 04, 2013, 06:22:02 PM
Blimey....can it be?

Looking good though :)
Title: Archbish\'s FD refresh...
Post by: G@NDY on March 04, 2013, 08:02:01 PM
Looking real good Bish man
Title: Archbish\'s FD refresh...
Post by: iaint on March 04, 2013, 08:43:35 PM
Looking great - bit of a change form the ossum purple.
Title: Archbish\'s FD refresh...
Post by: Archbish on March 05, 2013, 10:12:31 AM
thanks chaps! :)  Very keen to get it back on the road - treat to myself for a promotion at work...!  (that, and I want my wee ones to grow up with cool cars in the family)
Title: Archbish\'s FD refresh...
Post by: Archbish on March 11, 2014, 07:36:23 PM
Fast forward a year...

(http://www.archbish.com/pics/3rd%20gen/mar14/bish7-2.jpg)
(http://www.archbish.com/pics/3rd%20gen/mar14/bish7-1.jpg)
(http://www.archbish.com/pics/3rd%20gen/feb14/bish3.jpg)

Will resize pics...
Title: Archbish\'s FD refresh...
Post by: grinder on March 11, 2014, 08:04:52 PM
very nice mate !!!!!!!!!!!
Title: Archbish\'s FD refresh...
Post by: Casey on March 11, 2014, 09:59:33 PM
Very, very nice :Thumbs-up
Title: Archbish\'s FD refresh...
Post by: re japi on March 12, 2014, 03:23:03 AM
I really like that colour. :) What front bumber is that?
Title: Archbish\'s FD refresh...
Post by: Prof on March 12, 2014, 07:08:12 AM
I like it - I like it alot !
 
We\'ll have to call you Man of Bronze ! :cheers
Title: Archbish\'s FD refresh...
Post by: The dutchman on March 12, 2014, 07:38:32 AM
Damm that car is sweet!!
Love the color!!
Title: Archbish\'s FD refresh...
Post by: Archbish on April 06, 2014, 07:17:50 AM
Thanks all. New wheels on now
(http://www.archbish.com/pics/3rd%20gen/apr14/bish7-2.jpg)
(http://www.archbish.com/pics/3rd%20gen/apr14/bish7-1.jpg)
Title: Archbish\'s FD refresh...
Post by: gsb876 on April 17, 2014, 04:38:26 PM
The Bish is back, looking good mate :-)
Title: Archbish\'s FD refresh...
Post by: m4n4mk1 on May 26, 2014, 10:48:33 PM
That look SUPER! Am in love with your car.
Title: Re: Archbish\'s FD refresh...
Post by: Archbish on November 04, 2025, 09:14:08 AM
Well, it's been a minute, and been meaning to post here.  It's back baby!!
(https://photos.app.goo.gl/rJPJLYtAVZZ2Rhvu5)
Title: Re: Archbish\'s FD refresh...
Post by: Archbish on November 04, 2025, 09:15:59 AM
(https://lh3.googleusercontent.com/pw/AP1GczN2wHnEQ-fnBG35LXdILzET2unTe2agctstl0Ry2UHC5x-UUiengbKApG-LV4kJLBz4nYjaLHDVM3hwH_DHrwj0-cmzKZco3P_RBLFy4BgLNYMWmEMkAIRkfAkX3NeD2WkJjV-Nu6o2uHRQlPYMfdkgtA=w1920-h681-s-no-gm?authuser=0)
Title: Re: Archbish\'s FD refresh...
Post by: Archbish on November 04, 2025, 09:16:27 AM
(does anyone have a drivers door mirror.  Someone took offense to it, and stole it...)
Title: Re: Archbish\'s FD refresh...
Post by: Casey on November 05, 2025, 06:48:32 PM
Sorry, can't help with the mirror, but lovely FD  :love4:
Title: Re: Archbish\'s FD refresh...
Post by: clive on November 05, 2025, 07:31:52 PM
Wow great to see you still have the FD  :great:

Mazda UK are showing these Mirror assembly's

FD13-76-120 -M8  Montego Blue
FD13-76-120 -NU  Red
FD13-76-120 -PZ   Black
Title: Re: Archbish\'s FD refresh...
Post by: noyzboy on December 05, 2025, 10:14:03 AM
Welcome back.

What happened to the bronze ??

Rising sun parts is closing down. Might be a good place to find a mirror

https://fdoc.co.uk/forum/threads/rising-sun-autos-parts-closing-down-sale.7617/