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SXVINWA
05-27-2010, 01:24 PM
I have looked in the manual and I have searched these pages, but I can't seem to find any torque specs for the brake disc (front or rear) or the rear sprocket. Looking at other m8 bolts, they mostly fall in a range from 16 - 19 Lbft.

So, the stupid question of the day is what torque values have you guys been using... standard values based upon bolt grade and size???

Teacher
05-27-2010, 02:40 PM
Front & rear brake disc bolts are M6s. I would not use any more than 9 ft-lbs to torque them.

SXVINWA
05-27-2010, 03:02 PM
Ooops... m6, not m8. Must have gotten mixed up by the 10mm heads on the bolts for the front disc. Glad I didn't torque them yet. My chart shows a torque value of 7.8 Lbft for an m6 (8.8) zinc plated bolt. Sure doesn't seem like enough for a brake disc.

Markee
05-27-2010, 07:28 PM
Ooops... m6, not m8. Must have gotten mixed up by the 10mm heads on the bolts for the front disc. Glad I didn't torque them yet. My chart shows a torque value of 7.8 Lbft for an m6 (8.8) zinc plated bolt. Sure doesn't seem like enough for a brake disc.


Use Loctite and they will be fine. Just remember that they are being screwed into alloy hubs so a hardened steel bolts shouldn't really be done up any tighter as there's more chance of stripping the thread out of the hub.

jaxxon
05-27-2010, 11:39 PM
Asking us the torque values for brake rotor bolts is a smart question in my book... 10.5 Nm is what I found in my service manual.

btw they are ALL in here for $7.99 (it's very nice on a big monitor)

http://cgi.ebay.com/ebaymotors/APRILIA-RXV-SXV-450-550-WORKSHOP-MANUAL-PDF-FILE-07-09-/140404404067?cmd=ViewItem&pt=Motors_Manuals_Literature&hash=item20b0c12f63#ht_2121wt_1165

lo-fi
05-28-2010, 12:46 AM
Asking us the torque values for brake rotor bolts is a smart question in my book... 10.5 Nm is what I found in my service manual.

btw they are ALL in here for $7.99 (it's very nice on a big monitor)

http://cgi.ebay.com/ebaymotors/APRILIA-RXV-SXV-450-550-WORKSHOP-MANUAL-PDF-FILE-07-09-/140404404067?cmd=ViewItem&pt=Motors_Manuals_Literature&hash=item20b0c12f63#ht_2121wt_1165

Why would you pay for it? isnt it free on http://www.slorider.com/aprilia ?
Or is that something else?

SXVINWA
05-28-2010, 11:18 AM
Thanks for the input, guys... will torque to 92 Lb-In with some loctite and call 'er good.

irie
05-28-2010, 01:42 PM
just make sure you put red locktite on those bolts.sprocket bolts are known to back them selves out on there own .

No, absolutely do NOT use red loctite, you'll probably need a heat gun to get them undone again! Been there, done it. :(

Use blue loctite ...

jaxxon
05-28-2010, 07:38 PM
Why would you pay for it? isnt it free on http://www.slorider.com/aprilia ?
Or is that something else?

nope that's the engine service manual -



No, absolutely do NOT use red loctite, you'll probably need a heat gun to get them undone again! Been there, done it. :(

Use blue loctite ...

+1 ...red loctite is used on brake caliper bolts NOT rotor bolts -you can usually see what loctite to use by what's left on the bolts from the factory.

lo-fi
05-28-2010, 08:23 PM
nope that's the engine service manual -


Oh OK, is it possible for you send it to Slorider so he can host it?
That way everyone can benefit from it.

It not like that guy is a licensed seller of the manual... or is he?

I dunno, just an idea :)

jaxxon
05-30-2010, 01:39 AM
Oh OK, is it possible for you send it to Slorider so he can host it?
That way everyone can benefit from it.

It not like that guy is a licensed seller of the manual... or is he?

I dunno, just an idea :)


lemme see it's a huge file... I'll try

lo-fi
05-30-2010, 02:41 AM
or even just upload it on sendspace, rapidshare or one of those file hosting services...