Rattling engine and seizing exhaust flap.

Mark Hooton said:

Mmmmm, anyone got a rattling RH cylinder? My 1250 is in for its 6K and I reported it. Initially the dealer hit me with 'there`s nothing wrong and the valve clearances are ok, Sir, they all do that'.

With the valve clearances being `ok` (which is what it sounded like to me - clearances waaaay out) I then thought that there is something seriously wrong with it and strongly requested a test ride - they concurred and agreed that there was something badly wrong. Parts ordered (I bet there`s a camshaft amongst them) but there`s a -7-12 day back order issue.

Paranoia creeps in now, why the long wait? Is it a common fault and BMW can`t get the replacement camshafts made quickly enough? Has this anything to do with the postponed release of a similar model using the same engine?

I am told, (from rumour control) that the case hardenening is coming off the camshafts, causing the problem? If this is the case (forgive the pun) then should I be concerned about the metal flakes hiding in the oil galleries? Obviously I don`t expect anything other than the corporate response from BMW but some of us might have the same problem?

As for the exhaust flap - I`m not a BMW basher (I buy lots of beemers!) but this is such a disappointment! I had the same problem on my 2014 LC and its still here on my latest 2018 1250! The remedy being a complete replacement of the headers just because of a daft design on the ceramic bearings on the flap! Changed under warranty of course but if out of warranty there`s a bill of over a grand for the said headers (I lubed the ones on my 2014 1200) it just seems madness!

As I said, I always try and be fair, take the middle road and avoid Olympic BMW Slaggings but I must say that I am somewhat saddened by this with a bike only having done 6K.

So, anyone had this engine rattling before?

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Warlord said:

Could it be a failed Cam Chain Tensioner....

or and misaligned cam chain?

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Smogbob said:

Seems you have a beaver syndrome also Mark although his bike is 2017, and metal shavings would have the little hair I have standing on edge on a new bike, sock it to em Mark...

https://www.ukgser.com/forums/showthread.php/511525-New-bike-bought-)

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Mark Hooton said:

Yeah, it’s that worry of what might happen further down the line pal.....


Sent from my iPhone using Tapatalk

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DC said:

hope it gets sorted and quickly Mark .....Im actually holding off in purchasing the 1250, Im waiting for "things" to calm down. I actually thought last night ,Ive not heard any recurring issues for a while and would go the dealers this week to start the ball rolling.....will hold on a bit longer now

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grant123 said:

My 1250 went in with tapping/knocking at 700 miles but from the left side.

Clearances all ok, then new shift cam actuator, then new cams. Still no better, so off came the head.
A loose valve stem guide was found and we all were sure that was the cause.
Complete new head fitted, still no better.

In the end a new engine was provisioned and having stripped the old engine, the bottom end had excessive play, both conrods had side to side movement.

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Roadrash Rider said:

I’m sort of with Mark on this not wanting to over bash BMW, we pay top dollar for these and you do get issues, all I can say is that in my 12 years of ownership whatever the problem they have actually sorted it, ok sometimes you feel a bit like the beta test dummy, but they always have put the problems right.

Hope they get it sorted sharpish Mark.

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leadfarmer said:

I know it’s a 1200 but my 2016 has had the cams swapped because of poor finish and also the rhs timing gear assembly changed as it was making a constant loud tapping sound

Could be the same problem

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