30 replies to this topic

[gaffer1986]

Can you use this stuff to grease the two Brembo caliper slider bolts?

 

https://www.vx220par...nti-squeal-gel/

[fiveoclock]

Do you mean the ones in the rear calipers with an allen head? If so you can use this

 

http://www.ebay.co.u...sd=161537318369

[gaffer1986]

Yeah there the ones:

 

https://www.vx220par...-caliper-bolts/

 

Mine have rounded so I'm replacing them when I do the brakes before Snetterton on 07/11/16.

[Madmitch]

Copperslip?

[gaffer1986]

I hear copper grease is not a good idea where rubber things are.

[glitch]

Use silicone grease.

[oblomov]

Your best bet is a waterproof grease, which is what I've always used without problem, and I've had the rubber slider boots holed at least three times.  Then if the integrity of the boots is compromised you have a second defence against water ingress.

[vocky]

it depends which part you want to grease;

 

On the allen key bolt, which simply sits inside the metal sleeve, you can use copper grease. This will prevent it from seizing inside the sleeve and to the hub carrier.

 

The metal sleeve should have a white plastic shim between it and the rubber seal fitted to the caliper, no grease required, but a tiny amount of silicone grease might help if they are not brand new and have dried up with age.

[siztenboots]

https://www.elisepar...urbishment-kit/

 

I need to overhaul mine over the winter , 2017 is going to be flat out on track

[gaffer1986]

I thought I needed to grease both bolts, thanks for the advice, wish me luck in getting it out as it is rounded.

[glitch]

Is it the hex bolts that are rounded? Try a torx bit and hammer it into place. then use ratchet. That has saved me a few times.

[vocky]

wish me luck in getting it out as it is rounded.

 

there is an easy way to remove the allen key bolt, simply remove the upper bolt and then slide the caliper downwards (after pulling the upper slider out from it's recess in the hub carrier), remove the pads, then remove the brake disc and finally slide the caliper off the lower pivot.

 

Then use some mole grips to remove the allen key bolt and fit a new bolt.

Edited by vocky, 25 October 2016 - 03:57 PM.

[gaffer1986]

Is it the hex bolts that are rounded? Try a torx bit and hammer it into place. then use ratchet. That has saved me a few times.

  I was planning on using a torx bit, still scares me though, but I am a whimp when it comes to working on my car but it normally turns out ok, after many many problems and help from Stuwy last time  

 

wish me luck in getting it out as it is rounded.

  there is an easy way to remove the allen key bolt, simply remove the upper bolt and then slide the caliper downwards (after pulling the upper slider out from it's recess in the hub carrier), remove the pads, then remove the brake disc and finally slide the caliper off the lower pivot.   Then use some mole grips to remove the allen key bolt and fit a new bolt.  

  Really, so the allen key bolt doesn't actually hold the caliper on?

Edited by gaffer1986, 25 October 2016 - 06:19 PM.

[Ormes]

Correct, it holds the caliper in position and acts as a pivot, but the caliper does indeed just slide off to the rear.

[gaffer1986]

That's handy to know. Just need to buy some mole grips now.

Edited by gaffer1986, 26 October 2016 - 06:18 AM.

[gaffer1986]

If it doesn't grip anything then surely we don't need to tighten it much more than 20nm to prevent rounding in the future?

[vocky]

standard M8 bolt torque,

 

25 Nm for a 8.8

 

or

 

35 Nm for a 10.9

[gaffer1986]

standard M8 bolt torque,   25 Nm for a 8.8   or   35 Nm for a 10.9

Do you have a table for all this, I didn't know there was torque specific for the size and bolt type, I thought it was something lotus did by trial-and-error.

[gaffer1986]

Lets hope they don't delaminate (fall apart)

 

2016-10-28_09-06-15 by Richard Fanders, on Flickr

 

2016-10-28_09-05-05 by Richard Fanders, on Flickr

[The Batman]

Rc5 or 6? Keep an eye on them