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Discussion Starter #1
Ok, so Im doing a monoblock conversion to my 2012 F3 and bought some Frentubo hoses. I tried fitting the hose yesterday. No instruction as to how to put it together, neither in the service manual.

My assumption is that two of the ends of the hose look the same and are straight to the banjo bolt and the one has an angle. So I assumed the angled one connects to the master cylinder.

The hose with the angle comes to the T piece, but it doesn't split off 90 degrees to both calipers. It comes straight to the first caliper and splits off 90 degrees to the second caliper only. Not quite logical to me but anyway.

I connected them up, have a look, does it look right? Have no way to know as no directions or manuals.



My second issue, is that I connected them at the calipers first (with hindsight routed incorrectly), trying to connect to the master cylinder I managed to get the T-piece to bind against the fork and get a kink in the hose. You can see it in the 1st photo also. Is this fatal? I don't know what the cross section of a hose looks like to make the call?

 

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The ocd in me says that looks not nice. I like symmetry, and that is definitely not even on both sides.

I am sure there are people with more knowledge, but I would not use a hydraulic line with a kink like that. It has been weakened, and that will be the failure point.
 

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Discussion Starter #3
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The ocd in me says that looks not nice. I like symmetry, and that is definitely not even on both sides.

I am sure there are people with more knowledge, but I would not use a hydraulic line with a kink like that. It has been weakened, and that will be the failure point.
Do you have a pic of your bike?

Im pretty sure its not meant to be symmetrical as the Master cylinder access point it through the fairing on the left.

Don't want to fill the line with fluid only to have to re-do it again.
 

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I'm not really sure the hose is unsafe, but I would not be happy with it were it mine. The kink is right at the juncture point. Probably will not compromise performance, but might fail eventually.
 

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Does not look correct , did you take a photo of the original setup .kinked hose ,it is braided ,but it would play on my mind when riding all the time . need more pics on how you are running the lines ,
 

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Discussion Starter #6
I ordered a replacement set. Wont take a chance.

The guys at Frentubo sent me a diagram (paint.net) for the setup.

Once the replacement arrives I'll post up some pics and the diagram so others dont stuff it up like me.

There are no diagrams for this. The 2012 hoses with the 2 piece calipers is completely different to the monoblock hoses so I cant just install it like what was there before.
 

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Discussion Starter #7
Ok, update! The Frentubo is apparently not suitable for my setup. It is meant for CNC calipers and radial MC. Almost exactly the same as my setup. Cant see how the calipers would make a difference. The replacement hose arrived and had endless crap trying to get it to work. The alignments and hose lengths just didnt work. The supplier offered a refund, except the shipping back is almost more than the hose so not even worth it.

I went and bought an original MV Agusta hose from startwin trading for a F3 800 (2013 Non ABS) / Oro.

This is 10x better than the aftermarket crap with regards to fitment and connector alignment. It still is a pain to connect, but nothing like the hoses I purchased prior. No binding either.

If anyone is interested, the part number is:

8000B6081 OIL PUMP FRONT BRAKE 1 • MY13 €65.52

Was slightly more expensive than the aftermarket one, but peace of mind counts a lot.

Now just to get some brake fluid in.

PS: Doing brakes is the WORST maintenance item on a motorcycle. Lost count how many times I said fck or dropped a washer trying to fit the banjo. Crappy fitting after market parts made it even worse. It is also dirty (brake dust) and the fluid can screw up your paintwork so extra caution covering fairings and parts prior to draining and removing things.
 
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