Got any tips and tricks for BMW R1200RT/R1250RT owners? feel free to share them here.
simbo
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by simbo » Fri Apr 17, 2020 5:38 pm
David. wrote:
These nuts are described as 12 point or bi-hex, they are useful where access is limited.
Hence why a suitable socket is required, a 6 point or hex socket won't work.
Yeah, a 13mm what I like to call cheap socket fits a treat.
[attachimg=1]
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The GS 'is' the better bike :-)
David.
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by David. » Fri Apr 17, 2020 6:08 pm
As
"field tested" on a GS.
Old-Git
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by Old-Git » Sun Apr 19, 2020 8:49 am
Ok so my bike goes up on the ramp today, service this week (if the oil filter arrives..) and I'm gonna make sure I can get the headers off before ordering the black widow set. I'm gonna soak them in plus gas, use heat (blowtorch), find a really tight socket. I've had advice to try nail varnish remover, tightening the nut ever so slightly. Any other hints, tips, tricks? Ta.
gogs01
Posts: 628 Joined: Mon Jan 12, 2015 8:32 am
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by gogs01 » Sun Apr 19, 2020 9:31 am
Last year I removed the silencer, then the header assembly to give my bike a deep clean. (It's a 2017 model bought and registered in 2016)
The nuts holding the headers to the cylinder head looked like those in the pictures posted by David of the GS headers.
I assumed they were external Torx nuts and used an external Torx socket (I could check the exact size if it would help).
The nuts came off and were replaced without any problem, other than the conflicting numbers for the make-up torque.
I'm no expert, but I don't think a 12 point socket is the tool to use.
My 4th R1200RT = 2016 (2017 MY) R1200RT LE
simbo
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by simbo » Sun Apr 19, 2020 10:21 am
gogs01 wrote:
Last year I removed the silencer, then the header assembly
I assumed they were external Torx nuts and used an external Torx socket (I could check the exact size if it would help).
I'm no expert, but I don't think a 12 point socket is the tool to use.
Yes that would help if you think it's the correct information.
The GS 'is' the better bike :-)
David.
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by David. » Sun Apr 19, 2020 10:25 am
My understanding is that Torx fixings are 6 point.
This is an example of a M8 exhaust manifold nut with both internal & external fitting.
Typical Dimensional Specifications of TORX Sockets or Nut drivers
For use with External TORX Head Type Bolts.
Socket E-Size Inch Metric
E-14 .503" 12.85mm
https://forums.bmwmoa.org/showthread.ph ... eader-nuts
Last edited by
David. on Sun Apr 19, 2020 10:55 am, edited 1 time in total.
simbo
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by simbo » Sun Apr 19, 2020 11:06 am
I've got a Torx set as my Triumph has quite a few of them fixings, the BMW manifold bolts are nothing like.
[attachimg=1]
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The GS 'is' the better bike :-)
Old-Git
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by Old-Git » Sun Apr 19, 2020 3:26 pm
Success! All 4 off, copious amounts of plus gas, a bit of heat, and off they come. Thanks to Simbo for the tip re an old 13mm socket.
David.
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by David. » Sun Apr 19, 2020 3:33 pm
Excellent news, pleased you got there in the end.
Old-Git
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by Old-Git » Wed Apr 22, 2020 11:27 am
Exhaust arrived, I'll take pics and do a weight comparison later in the week.
David.
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by David. » Fri Apr 24, 2020 7:15 am
Wow, that's good service from BW, look forward to hearing how you get on with your local bike dealer and any potential remap.
Old-Git
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by Old-Git » Fri Apr 24, 2020 10:17 am
Fitted it yesterday.... it's about 3/4 of an inch too long. Will fit OK with std silencer but not with the Akra, which has an internal lip. Just debating which bit to modify, the downpipes or the collector.... or should I send it back.....
David.
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by David. » Fri Apr 24, 2020 11:42 am
I suppose the BW headers have to be manufactured to fit with an OEM silencer or one of their own.
I guess if you are likely to sell the bike in the future, the OEM headers & silencer could be refitted.
Chop it & fit the Akra.
Last edited by
David. on Fri Apr 24, 2020 11:45 am, edited 1 time in total.
Old-Git
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by Old-Git » Sat Apr 25, 2020 10:02 am
David. wrote:
Chop it & fit the Akra.
Yep that's what I did. BTW the new system is 3.7 kilos, old one (incl servo motor etc) is 4.3 kilos. So not the huge weight reduction I was hoping for.
David.
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by David. » Sat Apr 25, 2020 10:10 am
David. wrote: Look forward to hearing how you get on with your local bike dealer and any potential remap.