Mazda Rotary Club

Cars by Model Type => 1st generation RX-7's => Topic started by: gnj37 on November 29, 2010, 01:23:36 PM

Title: 13b clutch
Post by: gnj37 on November 29, 2010, 01:23:36 PM
Rear crankshaft oil seal must have failed clutch slipping badly and oil loss. Now i see a brand new clutch on ebay for a 12a.  Here\'s  the question are they the same i.e. 12a and 13b, Also does any body know the spline size i.e. 1 inch 23 spline as would be on a ford as i have a  paddle clutch  knocking about from my rallying days info would be greatly appreciated gary  .
Title: 13b clutch
Post by: David Nock (RIP) on November 29, 2010, 04:50:53 PM
Can\'t tell you anything about the 13B gary but be careful mate. We know for example that the Series 2 12A clutch is 215mm diameter, whereas the Series 3 12A clutch is 225mm diameter.

So I would have thought you will have to be armed with at least the diameter information and the spline size before you buy.

Dave
Title: 13b clutch
Post by: gnj37 on November 29, 2010, 05:13:50 PM
Thanks David  I take all apart 1st was hopeful i would have it in and out in one go  It will give me something to do over Xmas
Title: 13b clutch
Post by: myatt1972 on November 29, 2010, 08:45:52 PM
I think an early 13b clutch is the same as a late 12a
Some info here.
(http://i853.photobucket.com/albums/ab97/myatt1972/odd%20stuff/DSCF1305.jpg?t=1291063465)
Keith...
Title: 13b clutch
Post by: David Nock (RIP) on November 30, 2010, 12:04:57 PM
Little bit more material on the pressure plate side lining. 0.6mm, does that matter?
Title: 13b clutch
Post by: gnj37 on November 30, 2010, 12:37:56 PM
The clutch is a new unit can the oil be removed dry up or cleaned some how
Title: 13b clutch
Post by: CHC (RIP) on November 30, 2010, 01:28:41 PM
If the clutch plate is contaminated with oil it is not recommended to re-use that item - you need to buy new I\'m afraid.
Title: 13b clutch
Post by: myatt1972 on November 30, 2010, 03:58:52 PM
Trico-ethylene will clean it up but dont know if its still available cos it can kill you !!!
Title: 13b clutch
Post by: David Nock (RIP) on November 30, 2010, 06:18:10 PM
Yeh, you might be able to clean it up with Trico Gary but it\'s such buggeration to get the plate in and out that I suspect it\'s too much risk - in case it starts to judder? Best have new for the peace of mind.
Title: 13b clutch
Post by: gnj37 on December 01, 2010, 11:48:45 AM
Just had a look at wiki to see what Trico-ethylenene is after cancer was mentioned i think i will just get new plate gary