Saturday, December 3, 2022
HomeKayakWahoo Kickr 18 Restore - Unsponsored

Wahoo Kickr 18 Restore – Unsponsored


Wahoo Kickr 18 Repair
Wahoo Kickr 18 Restore

I’ve had Wahoo turbo trainers for the previous couple of years. The primary being the Kickr Snap which labored effectively however its resistance would fluctuate fairly a bit relying on tyre stress and air temperature.

I made a decision in January 2019 to get a wheel off Kickr 18 as I actually like driving on Zwift and the wheel off meant that I may virtually match and neglect.

Inside a few weeks the unit started to show the clunking and clicking that many items had suffered. The flywheel was additionally working with a little bit of a wobble. A substitute arrived just a few days after elevating a assist ticket and submitting a brief video of the difficulty.

I’ve been utilizing that substitute ever since and have coated virtually 2000km on it for nearly the final yr and a half.

Final week it began to make just a few slight noises that I didn’t just like the sound of and a vibration could possibly be detected by means of the pedals. The noise was a slight click on and a rubbing/squeal from the belt drive. The squeal was noticeable when the flywheel was coming to a cease.

Because it seems is appears that the noises it had been making had been creating for a while however because it was gradual I didn’t actually discover right away till it was fairly dangerous. I didn’t realise this till it was mounted.

Given the present world broad lockdown scenario all makes of turbo trainers are in excessive demand and I didn’t wish to be in a scenario of being with no coach. And even worse obtain an equally damaged substitute as just a few customers on social media have reported. Wahoo are additionally not sending out the DIY restore package (K118).

Now to avoid wasting you studying on I’ve identified and glued the difficulty with components which might be available and utilizing instruments that I had.

There are many nice movies on-line that present the Kickr taken aside so I haven’t bothered to indicate that.

Kickr have acknowledged there is a matter with some items. It seems to be like my substitute unit additionally fell throughout the window of the dodgy batch.

Discover:

Taking aside YOUR coach is at YOUR threat. I take no accountability for any injury or damage that will happen in case you do what I did. Please presume that any DIY work could void your guarantee.

Instruments:

To take away the duvet and get entry to the pulley you’ll need a 2.5mm hex key, and two in another way sized Philips head screw drivers to take away three cowl retaining screws.

Hex keys had been wanted to take away the unique M6 and M5 two bolts. 10mm and 8mm sockets had been wanted to lock in my new bolts. I additionally used a punch to assist match the brand new key.

A torque wrench was additionally used to make sure the brand new bolts had been comfortable however not too tight.

THE Large Hammer

Bolts:

As soon as of you could have entry to the pulley wheel and belt tensioner. The pulley is held on with a M6 12mm bolt and the tensioner is held in place with a M5 12mm bolt. The tensioner is moved up and down with a protracted bolt. I used a marked to determine the place the centre of the bolt was positioned. The tensioners M5 bolt was again off and the tensioning bolt was unwound with a 2.5mm hex key to take away the stress on the belt drive. The belt was then faraway from the pulley.

Previous bolts and deformed washers

Each the M6 and M5 bolt have washers which might be deformed throughout becoming. As a way to keep away from this the substitute bolts had been ordered, M6 x 12mm and M5 x 16mm with flanged heads and a bigger M6 18mm diameter washer.

Within the Wahoo restore package K118 the bolt provided for the pull wheel is a excessive tensile 10.9 flange metal hex which can take 16Nm. I initially used a black stainless bolt as pictured and torqued as much as 10Nm however have since sourced the ten.9 spec bolts and have changed with a 16Nm torque setting.

New components assembled

The Key:

When the pulley was eliminated the important thing merely fell out. I discovered it was undersized after I measured it so was by no means going to suit. 5 x 5 x 12mm substitute parallel keys had been ordered from Amazon. You possibly can get bins that include a number of sizes however you’ll solely want the 5 x 5 x 12mm ones.

That is perpetrator in case you have the banging or clicking sound.

Bearings:

The flywheel rotates on two doubled seal 6003 bearings from NSK. Each popped out simply sufficient when the flywheel and axel had been eliminated. The flywheel facet match is far tighter. I’ve learn some experiences that this bearing wants a little bit of coaxing to come back out. It’s actually a tighter match than the opposite however I didn’t need to resort to hammering it out.

Each of the bearing seemed OK and span freely however as they had been out I made a decision to switch them as they did have indicators of corrosion.

The 2 SKF 6003 replacements price £5.66 every. I may have gotten them cheaper if I searched round a bit however I needed them quick.

Once they arrived I positioned one (nonetheless in its plastic bag) within the freezer for a few hours. This was to shrink it very barely in dimension so I may refit into the flywheel facet recess with ease. The flywheel facet had a tighter match.

The bearings within the pulley tensioner are 6001 ZZ bearings. They’ve a steel protect that may’t be eliminated to be able to examine/regrease. Mine appeared advantageous however I think about that the 2 that sit within the tensioner can be each tough to get out and again in with out the right instruments.

Placing it again collectively:

Bearings changed with the frozen one dropped straight into the flywheel sided with out challenge.

Flywheel axel greased and refitted. I used Phil’s Waterproof Grease.

Key hammered into the keyway with a little bit Loctite 243. I used a hammer and punch to ship this dwelling ensuring it was tight and way back to it could go.

Pulley was refitted and bolted in place. The M6 flanged bolt was given some Loctite 243 and the washer refitted earlier than doing it as much as 16Nm as really helpful within the Wahoo DIY restore directions.

The pulley pressure bolt was changed with the M5 flanged bolt. I made a decision to make use of one other M6 washer to assist unfold the load additional, though a large M5 washer would have been higher. Once more this was given some Loctite 243 earlier than bolting it up. This bolt simply must be tight sufficient to forestall slippage.

New components in place

The belt was then fitted and the stress returned to its unique place guaranteeing the stress was good. Each trainers I’ve had aside have the stress set at about midway as seen within the picture above.

I then tried spinning the flywheel by hand to make sure nothing was binding. Sadly the rubbing/squealing was nonetheless current. Altering the stress didn’t make a distinction. Some research led to a fan belt video on youtube. Because the video prompt you could possibly diagnose a belt challenge with water. I crammed a water bottle with some faucet water, protected the digital parts of the coach and poured the water onto the within of the belt as I rotated the flywheel. As soon as moist the noise disappeared indicating it was a belt challenge.

The water additionally flushed out a load of advantageous black grains of rubber that will need to have been from the belt. A little bit of Aerospace 303, that I take advantage of for dry high latex seals, was sprayed on the internal facet of the belt and extra wiped off.

Aerospace 303

Did it work. Sure, no banging clunking, squealing. The one noise is from my bikes drive prepare. I’ve accomplished quite a few rides on Zwift with out challenge together with a jaunt up Alpe du Zwift in the present day.

No points in any respect.

For the components required I spent beneath £30 however have sufficient bolts, washers and keys to do one other 9 items. Excluding the bearings it’s round £3.00 per Kickr.

I’ve since repaired one other Kickr 18 with the components I’ve sourced.

UPDATE:

thirtieth November 2020. Six months on and the Kickr is working because it ought to. It stays quiet and bearings appear to be OK. I’ve had the duvet off just a few instances over the previous couple of months to test on the Woodruff key and it hasn’t budged in any respect.

third January 2021. The coach has been used increasingly more over the past month as out of doors biking on account of Covid and the climate has ceased. I accomplished the Rapha Festive 500 biking over 500km on the Kickr throughout between Christmas Eve and New 12 months’s Eve. The coach stays quiet.

1st January 2022. As per above. Not a single challenge up to now with no additional adjustment or tweaking required.

Restore Packs:

I do have sufficient spares to do the bolts and keys for a handful of trainers. In case you are within the UK and are concerned with getting maintain of some please drop me a line within the feedback part under.

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