Banjo bolts torque

[Corsara]

Anyone can help with torque values for:

1) Caliper side: Spiegler single aluminium banjo bolts, what torque?

2) Master cylinder side: Brembo double banjo (seems heavier than an aluminium double banjo, but don't know what it's made of), what torque? Also, do you put two washers between the two banjo fittings, or just one?

Thanks in advance, looking forward to finally installing these tomorrow.

 

[Brian P]

Track bike? Get rid of the aluminum banjo bolts and replace them with stainless steel banjo bolts, and torque them to the setting in the shop manual. In my not so humble opinion (mechanical engineer ...) aluminum is unsuitable in that application.

You need one crush washer for each sealing connection - in other words, a double banjo bolt requires one crush washer between the master cylinder and the first fitting, one between the two fittings, and one between the second fitting and below the head of the double banjo bolt.

 

[frekeyguy]

whats the thread size? are these M10's? 1.0? or 1.50?

 

[Corsara]

Track bike? Get rid of the aluminum banjo bolts and replace them with stainless steel banjo bolts, and torque them to the setting in the shop manual. In my not so humble opinion (mechanical engineer ...) aluminum is unsuitable in that application.

You need one crush washer for each sealing connection - in other words, a double banjo bolt requires one crush washer between the master cylinder and the first fitting, one between the two fittings, and one between the second fitting and below the head of the double banjo bolt.

Yes, track bike. I already drilled them for safety wire, wouldn't that make it okay?

EDIT: Now you got me worried...maybe I should just reuse the steel stock banjo's I already have for the calipers side..

whats the thread size? are these M10's? 1.0? or 1.50?

The Brembo double banjo on top will go into the Accossato master cylinder, which is identical to Brembo, and it takes M10 x 1.0. So I just bought a Brembo banjo (it's also a bit shorter than regular).

 

[TwistedKestrel]

I believe the issue with aluminum banjo bolts is galvanic corrosion. Possibly debated somewhere in GTAM before? You will be okay at least in the short term.

 

[Brian P]

Yes, track bike. I already drilled them for safety wire, wouldn't that make it okay?

Safety wire won't help a bolt that cracks and leaks the fluid out through the failed fastener, resulting in you having no brakes.

EDIT: Now you got me worried...maybe I should just reuse the steel stock banjo's I already have for the calipers side.

Do that.

 

[Corsara]

Stock banjo FTW. Thanks Brian.

 

[RockerGuy]

I believe the issue with aluminum banjo bolts is galvanic corrosion. Possibly debated somewhere in GTAM before? You will be okay at least in the short term.

I've used anti-sieze where-ever theres steel & aluminium contact. Didnt do any work since. Will see next summer

Sent from my tablet using my paws

 

[crankcall]

and torque them to the setting in the shop manual. In my not so humble opinion (mechanical engineer ...) .

In many posts you keep making reference to this elusive "shop manual" , are these really this rare? they must be printed on unobtainium.

 

[Brian P]

In many posts you keep making reference to this elusive "shop manual" , are these really this rare? they must be printed on unobtainium.

LOL

"RTFM" would answer a lot of the technical posts on most bike (and car) related forums, but it's not a polite response ...

 

[Rob]

HEEHEE, my dad used to say most people think Manual is someone's cousin in Mexico! LOL!!!