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Author Topic: Little help please from Mk1 owners  (Read 481 times)

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Offline Bikespod

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Little help please from Mk1 owners
on: October 12, 2021, 06:46:46 AM
Hi all.
I’m after a yuck bit of help from any Mk1 owners.
I recently noticed a deformation in the carrier on one of my front discs. Presumably from a presenter doing the ride off with disc lock trick.
So I have replaced the discs with EBC discs.
They seem to be identical on installation and work very well in use ( an improvement in fact )

Some Facebook users in a VFR group said that they had to install spacers behind the ABS ring to get the ABS light to turn off once on the move due to an excessive air gap between the ring and sensor.

Now, my light goes off as expected and no error, BUT the gap is more like 2mm.
The manual states “0.8-0.9mm gap. No adjustment possible, if not in range, check installation and parts for deformation”

So my request is for someone to please look down the line of the ABS ring and visually check the gap between it and the ABS senor on the bottom of the calliper carrier bracket.
Better still to check it with feeler gauges to measure it.
I’m wondering if my calliper bracket suffered in the incident and is slightly bent.

Any help much appreciated. Thank you.

Offline reasty

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Re: Little help please from Mk1 owners
Reply #1 on: October 13, 2021, 08:14:10 PM
Hi - l can't lay my hands on my feeler gauge at the moment but can safely say the gap is below 1mm as  I've tried a 1mm plastic packing shim and it won't fit the gap - if I find the feelers tomorrow I'll try for an accurate measurement.

Offline sneo

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Re: Little help please from Mk1 owners
Reply #2 on: October 13, 2021, 10:13:09 PM
No more than about 0.5mm using a piece of card and a caliper to measure

Offline Bikespod

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Re: Little help please from Mk1 owners
Reply #3 on: October 13, 2021, 11:38:24 PM
Thank you both. That really helps. I’m more convinced that the calliper carrier bracket is a bit bent.
I have some used callipers with brackets coming soon. I’ll swap out the bracket and see if that works. If not I’ll have to pack the ABS ring out to get the correct gap.
Thanks again.

Offline reasty

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Re: Little help please from Mk1 owners
Reply #4 on: October 14, 2021, 07:42:24 AM
Let us know the outcome - sounds like a bit of conundrum-hope it works

Offline Bikespod

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Re: Little help please from Mk1 owners
Reply #5 on: October 28, 2021, 11:43:23 PM
So. I received the used callipers with their carriers. Swapped the carrier and installed on my calliper and fitted the sensor.

Same gap 1.8mm

Got back in touch with EBC and they have been absolutely brilliant to deal with.
They listened to my questions and acted on my request to measure the original disc carrier thickness and compare it to their Honda disc in their library.

Guess what…..the EBC carrier is 1mm thinner than the Honda one.

They have given me the option to wait a few months and they will manufacture new discs and thicker carriers to replace the ones I have, or I can shim the ABS ring on the ones I have by 1mm.

I think I’ll go for the new discs rather than shimming the ring.

What a refreshing company to deal with. They have admitted their mistake and are going to correct it for future discs. And supply replacement discs free of charge. I do have to return these discs, but that’s only fair.

Just hope I can get the loctite to release easily.



Last Edit: October 28, 2021, 11:55:14 PM by Bikespod

Offline Corringdon

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Re: Little help please from Mk1 owners
Reply #6 on: October 29, 2021, 08:27:24 AM
Good result, Bikespod.
Some of my past bikes. Norton ES2 - Norton 650SS - Velocette Venom - Velocette Thruxton Venom - Kawasaki Z1100  ST - Kawasaki GPZ 1100 B2 - Honda NSS.

Offline Bikespod

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Re: Little help please from Mk1 owners
Reply #7 on: October 29, 2021, 09:15:41 AM
Yes. A good result. And I’ve ended up with a spare set of callipers I can strip and refurb with new seals etc. Nice little project for the winter months.
Might even put stainless pistons in too 😉

 



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