RE: rear disc conversion of 1600...

[Terry Rudd]

Adam, Here is a copy of what you are after from the archives.   The R31 Skyline/Pintara has a solid rear axle but the rear discs are still very suitable to be used on any Datto IRS rear end.   The bits you need from the R31 are:   disks rotors, callipers and mounting brackets; calliper to bracket mounting bolts (2 each side); flexible hydraulic lines; both rear handbrake cables. (Note. Check that the rotors aren't under size which is 9.4mm or wont be if  they need machining.)   Here is an abridged step by step guide to fitting R31 rear disks to a Datto IRS.   Remove the half shafts, short axles (you will need a breaker bar and a slide hammer to do this), drum brake components and backing plates. Disconnect the handbrake cables but leave the hydraulic lines in place;   (Note. Mark the axles & bearing spacers so you know which side they came from and return them to the same side.)   Ream out the centre holes of the mounting brackets a couple of mm to easily fit over the lip on the IRS hub;   Grind the lower and side lips of the mounting brackets until they fit absolutely flush on the IRS hub and clear the control arm;   Drill out the lower rearward mounting bolt hole to 11 mm on both of the mounting brackets;   Make a template for the IRS flange bolts from a drum backing plate or from the flange itself;   Weld up the other 3 holes on the mounting bracket and re-drill them (10mm) to suit the IRS bolt pattern. Use the original IRS drum backing plate mounting bolts to attach the brackets. Re-install the small axles, I recommend you fit new lock nuts (PN 43262-21000 x 2) torqued to 240 ft/lbs; Connect the hydraulic lines and bend them carefully so they don't contact with the outer uni joints;   Bleed the system and check that the rotors aren't binding. If there is any sign of binding there's a good chance the mounting bracket isn't absolutely flush with the hub and to fix this you have to pull it all apart again, so take care the first time round with the bracket;   Re-install the half shafts;   Test drive it and enjoy the stopping power. Hook up the handbrake cables which is a bit tricky. The R31 cables have to be shortened a bit to suite a 510, other models you just may be lucky. As you can see it's a fairly straight forward conversion as far as rear discs go. regards, Terry -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Adam Jackson Sent: Saturday, 7 July 2001 12:01 To: [EMAIL PROTECTED] Subject: rear disc conversion of 1600... I was told that the best rear disc conversion is off of the R31 skyline. Would anyone be able to provide me some info about this conversion? like what bits and pieces i need, modifications needed etc?   cheers,   Adam --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [EMAIL PROTECTED] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/membersozdat@datascribe.com.au/ --------------------------------------------------------------------- --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [EMAIL PROTECTED] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/membersozdat@datascribe.com.au/ ---------------------------------------------------------------------