DOT5.1 | Moto-Abruzzo

12/07/202112/07/2021

Clutch hose upgrade and Innovv K3 Dual camera dashcam

Job 1

I managed to get a couple more Capo jobs out of the way recently. Firstly, replacing the clutch line for a nice new Venhill version to match the shiny ones on the front brakes. The hose required uses:

1x 90º Banjo
1x 45º Banjo
1x Venhill Powerhose Plus hydraulic line – 1125mm

It fitted perfectly, and while I was changing the line I also changed the banjo bolts and bleed screw for matching stainless steel units to complete the look. I have to admit, these are not cheap lines …. but I love the fit and flexibility with interchangeable ends. So for that I’m willing to overlook the extra hit on the wallet!

Job 2

Aprilia Caponord ETV1000 Rally-Raid Innovv K3 Dual HD camera system Secondly, I bit the bullet on an Innovv K3 dual camera system. As some may remember, I’ve previously tried the original K1 and the much improved K2. Unfortunately, the K1 DVR unit died after 12 months and the K2 turned itself into a brick with a failed firmware update. To be fair to the K2, it was leagues ahead of the K1 and (when it worked) was a truly fit-and-forget system. What went wrong I have no idea, I followed the update process to the letter and even had a few email exchanges with Rock Liu from Innovv, but they dried up when it looked like the unit was unrecoverable. I was lucky enough that the K1 and K2 had been supplied FOC, so nothing lost. This time however, it’s my own outlay. It’ll either be ‘third time lucky’ or ‘a fool and his money are soon parted’!

Certainly my first impressions on opening the box are:

Slightly smaller DVR with no buttons
Nice moulded waterproof connectors
Comprehensive fitting kit with stainless fasteners and anodised aluminium brackets instead of plastic/steel
Cameras physically identical to the K2 units but with different internals
Addition of an external microphone
Waterproof remote button for saving files and taking photographs as well as LED’s showing recording/GPS/WiFi status

Looking through the technical specification, it looks like the main upgrades over the K2 are:

Dual core processor for better image processing
Different camera internals ( Sony IMX291 LQR sensor)

Installation was of course, very similar to the K2. The power module connects directly to the battery positive and negative terminals and the yellow trigger wire went to the loom I still had in place that tapped into the rear lights/brake lights. As soon as the side/head lights are turned on there is a 10 second delay before the unit begins recording and when switched off, a 25 second delay before powering down the unit. The front camera comes with a 2m lead which is fine, but the rear has a 1.5m lead which for the Capo is way overkill. I only needed about 0.4m and hiding the rest away was a real pain.

To install the cameras I used two 15mm rubber lined stainless steel ‘P’ clips – the front one on the Aprilia headlight guard and the rear on the pannier frame. The included mounting kit parts fitted to these clamps just fine and it only took a couple of minutes to get a nice neat install and great picture being recorded! Oh but one bit of advice ….. the supplied screws don’t use any washers, so once happy with the install, I went back and put a dab of thread-lock on all the screws just to be safe.

31/12/202021/06/2021

New lines, new seals, new fittings, will it ever end?

Aprilia Caponord ETV1000 Rally-Raid Venhill Power Plus brake lines and stainless steel banjo bolts Well this little job just got a whole lot more involved and costly! The idea of having lovely clean and refreshed calipers made me think about the old banjo bolts (M10x1) and bleed screws (M8x1.25) … OK, so new stainless ones were ordered from Racebolt, that’s fine. Then it got me thinking about the old tarnished hydraulic hose ends … sigh … OK, so new hoses as well then!

I went for the ‘Powerhose Plus’ range of hoses and fittings from Venhill down in Surry. I chose ‘carbon’ grey (smoked translucent sheath that shows the hose weave below) with all fittings in stainless steel. I really like these hoses because the end fittings can be rotated – thereby reducing twist in the hose and allowing the hose to sit naturally. This is something I hate with other swaged hoses. With that type, I have nearly always had to induce an amount of twist in the hose to get one banjo to fit the caliper or reservoir. Fair to say, I like neat hoses (and wires!) and I have a smattering of OCD about me when it comes to symmetry … both left and right hoses will HAVE to mirror each other!

Aprilia Caponord ETV1000 Rally-Raid front brake hose lengths The standard hose assembly is a single hose from the reservoir to a T-piece just below the lower fork clamp, from there a single hose down to each caliper. To replicate this was actually more expensive than using two individual lines from the brake master cylinder. So that’s what I went with – A double banjo bolt at the reservoir and two lines to the calipers using 2 x 45º banjos at the reservoir and 2 x straight banjos at the calipers. For the Rally-Raid the Venhill right hand line (as sat on the bike) is 950mm long and the left hand line is 1,100mm, these will need to be slightly shorter for the standard Caponord. The important point is that the lines plus fittings have to be long enough so that no part of the line, banjo-to-banjo is under tension when the forks are fully extended.

The lines came with three hose support grommets each, and I ended up removing one as it was not needed. Both lines use one grommet located within the existing support grommet that fits in the plastic tray below the headstock, the second is used within the P-clip bracket on the mudguard fixing screws, so two per line (see pics below). The third I used to help buffer the left hand line up at the handlebars … hopefully I’ll get around to designing and printing a 3D bracket to make this support look more ‘factory’ and finally the third support on the right hand line was removed.

So with the lines sorted it was time for the calipers. The left one was removed, stripped and cleaned with Gtechniq W6 Iron and general fallout remover … a rather pungent and powerful liquid that does what it says – strips off 95% of the dirt in one go. Use in a well ventilated place with gloves and goggles, this is nasty stuff! After that, the pistons/seals were stripped out and everything zapped in the ultrasonic bath for a couple of 20 minute cycles until totally clean. Once dry, everything was put back together with new seals, O’ring and bolts (2x 40mm, 1x 35mm). Once everything was back together it was time to bolt the caliper back to the fork leg (50Nm) and have a nice warm brew before starting all over again with the right one.

Conclusion

In all fairness, I couldn’t get over how good the old seals were after 115K+ miles and almost 20 years. The pistons and springs cleaned up beautifully and looked almost new and the anodising inside the bores was hardly marked – totally amaze-balls when I think how badly some Japanese calipers fair after only a couple of winters. I honestly think it is all down to the coating on the pistons and the anodising of the casing that make the difference. As for the cleaning process … I got there in the end! Brake calipers are probably the worst thing to clean on any bike and unfortunately there is no getting away from good old elbow grease … well that and a really aggressive cleaner made for the job! The ultrasonic bath put the icing on the cake, but in all honesty wasn’t strictly necessary, but did remove a little more dirt and added extra sparkle.

Below is a selection of pics showing hoses and before/after shots of the calipers along with a couple of shots that highlight the kind of crap the Capo put up with for 10 years on a certain Italian road …

13/12/2020

Time for a bath …

Seems like brakes have become one of the hot winter topics of late, both on the AF1 forum and in the Moto-A household. The Caponord’s Brembo P34 (4 pad) calipers are getting a little sluggish and starting to drag the pads on the front disks. I’ve cleaned and exercised the pistons but they still feel the same. To be fair the seals are probably somewhere around 20 years old and have every right to feel stiff these days!

So I ordered a seal set from Powerhouse in the UK for £66 (both calipers). They seem to get excellent reviews and I have to say the kit is comprehensive – even containing a little bag of Brembo grease! Of course one thing led to another and thoughts of how best to clean up the calipers resulted in another fine purchase – a 6l ultrasonic cleaning bath! Now that just leaves me watching YouTube videos and experimenting with various cleaning solutions to find the one most suitable for the brakes, luckily I have a stash of old ones kicking around that are perfect for experimentation.

When health, weather and motivation are all in alignment over the festive period I’ll make sure the camera battery is charged and do my best to document the little adventure for posterity on the website. It will also be a great opportunity to try out the new torque wrench that I don’t know I’m getting for Christmas ….. 😀

31/01/201628/04/2019

Clutching at straws …..

Aprilia Caponord ETV1000 Rally-Raid DOT5.1 clutch & brake fluid Clutch slave cylinders/seals and brake fluid can be almost as emotive as good old engine oil, everyone has an opinion. Well I’ve just changed brake/clutch fluid after about 15 months, usually I’d do it every 6 months or so, but somehow I’ve ended up getting a bit lax and let it slide. So for what it’s worth, here’s how things have worked out on my own Capo over the years.

I think everyone will agree that it’s the clutch fluid that takes the most punishment, followed by the rear brake. So here’s a couple of photographs of the inside of the master cylinder straight after opening it and a comparison of the fluid drawn off, with straw colour of new fresh oil from a sealed container. No black residue in the master cylinder and only a slight colour change in the oil with almost no cloudiness. The fluid drained from both front and rear brakes was almost like new, but it’s nice to keep the fluid fresh anyway.

In comparison the oil I used to drain at 6-12 month intervals from the clutch was cloudy with black residue in the master cylinder and the rear brake was frequently amber in colour, only the front brakes seemed to show little degradation – all this was while using DOT4!

Todays oil is DOT 5.1 and has done 27,143 miles over 15 months

I’ve been using DOT5.1 now for the past five years and the first (10 year 44K miles) clutch slave seal was replaced in late 2013, not because it failed, but because it seemed to be letting a little air back into the system after long (24Hr+) runs – enough to give an extra 4-5mm or so of free play at the ball end of the lever otherwise it seemed fine in normal day-to-day use. Seal replacement was purely precautionary. The replacement seal has been used with DOT5.1 its entire life (2½ years 45K miles) and is showing no sign of leakage or air ingress. So to date it’s cost me one seal (€17) versus going out and buying a €90 aftermarket cylinder … I know which mast I’m nailing my colours to!

Aprilia Caponord ETV1000 Rally-Raid clutch master cylinder window bubble And finally ….. always ALWAYS make sure the level of fluid in the reservoir is right. It is so damn easy to overfill this one. My prefered method is to drain off most of the reservoir fluid once the system is bled (don’t expose the ports) then refit the rubber bellows and use a syringe to inject fluid back in while watching the bubble. Leave quite a big bubble showing, because when you screw down the cap the volume (and bubble) shrink a little.