S3 rear disc retaining screw

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KiwiDave
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S3 rear disc retaining screw

Post by KiwiDave » Mon Jul 24, 2017 1:09 am

Anyone know where to source these? I'm missing a couple ... legacy from swapping out the diff for a torsen. I should really renew all four.

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1985 Sunrise Red S3 TWR
2003 Mercedes E320 CDI Estate AMG

DB RX63
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Re: S3 rear disc retaining screw

Post by DB RX63 » Mon Jul 24, 2017 9:15 pm

Mazdatrix do them Dave. You might be able to get them from a main dealer or measure them and search screw suppliers.
Met Blue Series 2 Elford Turbo
S3 Rally Car (under Construction - Nearly Finished !)

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DKWW2000
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Re: S3 rear disc retaining screw

Post by DKWW2000 » Mon Jul 24, 2017 9:22 pm

Dave, I have a good supply of Stainless screws if you let me know the thread/pitch I can bring some on Sunday?
RX7 FB S3 - RX7 FC TII Vert
Rotaries Previously Owned:-
2 x NSU Ro 80s - 2 x S2 RX7s - Suzuki RE 5 - DKW(Hercules) W2000 - Norton (Krauser) Commander

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KYPREO
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Re: S3 rear disc retaining screw

Post by KYPREO » Tue Jul 25, 2017 8:11 am

Yes, these strip very easily and I have had to use impact screwdrivers to get them out. I have bought replacements from Mazda in the past. The correct part number is 9983-10-816 - currently list price on an US based site I use is US$1.25 each. Same part as FC and FD rear brakes as well as FD and RX8 front brakes. It is also a current part used on Mazda 2, 6, CX7, CX9, etc so should be readily available.

This part is only for series 3 rear ventilated discs NOT the s2 solid rotors (which use a button screw that is NLA).

Mazdatrix lists 9983-10-820 but this is for FC and FD front brake rotors. It probably still fits but could be a different length.

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ian65
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Re: S3 rear disc retaining screw

Post by ian65 » Tue Jul 25, 2017 10:35 am

Great info there th:
1986 Series 3 13B Turbo II
http://rx7fb.com/viewtopic.php?f=2&t=2400
1992 Peugeot 205 1.9 GTI
1975 Honda SL125 Street Scrambler

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Hobbawobba
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Re: S3 rear disc retaining screw

Post by Hobbawobba » Tue Jul 25, 2017 3:33 pm

From what I understand these aren't actually needed and just hold the disc on while you have a wheel off? :? :?:

DB RX63
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Re: S3 rear disc retaining screw

Post by DB RX63 » Tue Jul 25, 2017 8:45 pm

The screws are M8 x 1.25 pitch, screw length 12mm, overall length 15mm, head looks to be 45 degrees.

Hope that helps ?
Met Blue Series 2 Elford Turbo
S3 Rally Car (under Construction - Nearly Finished !)

KiwiDave
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Re: S3 rear disc retaining screw

Post by KiwiDave » Wed Jul 26, 2017 2:24 am

Thankyou all for the information s(c) th:
1985 Sunrise Red S3 TWR
2003 Mercedes E320 CDI Estate AMG

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DKWW2000
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Re: S3 rear disc retaining screw

Post by DKWW2000 » Wed Jul 26, 2017 1:44 pm

Dave, check out these, just cut to length:-

http://www.ebay.co.uk/itm/5-Pcs-M8x22mm ... SwzaJX~rct
RX7 FB S3 - RX7 FC TII Vert
Rotaries Previously Owned:-
2 x NSU Ro 80s - 2 x S2 RX7s - Suzuki RE 5 - DKW(Hercules) W2000 - Norton (Krauser) Commander

KiwiDave
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Joined: Sat Nov 05, 2011 8:07 pm
Location: Feltham, Southwest London

Re: S3 rear disc retaining screw

Post by KiwiDave » Wed Jul 26, 2017 3:21 pm

0-0
1985 Sunrise Red S3 TWR
2003 Mercedes E320 CDI Estate AMG

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