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Norge GT8V Roller cam valve clearances and more

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graham550 View Drop Down
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    Posted: 22 Nov 2017 at 12:19
Hi all, just bought myself a 2015 Norge GT8V with 10 k miles.
Don't really expect to use it until Spring, so I can't resist taking it to bits to clean it properly - underneath panels etc, so thought I may as well do a full service as it does take a bit of time to take it all to bits and put back together so may as well do the whole job.
Just want to know for sure - are the valve clearances with roller cams fitted the same as flat tappet versions i.e. 0.15 mm / 0.20 mm.
Also wanted to say - took me ages to clean the oil cooler - took it and the fan off, tried various things to remove baked on dirt from between clogged fins - not easy. In the end I came with a partial solution - which was to cut the side out of a 5 litre engine oil can.
I didn't really want to disconnect the oil lines if possible. Stand the oil cooler in it while still attached by the oil lines to the bike ( but having first removed the fan from the oil cooler. Then fill the plastic can up with very hot soapy water and leave for 20 mins or longer.
Remove the cooler from the can and use a manually pumped garden sprayer to spray more hot water into the fins flushing out the dirt. Also agitated between the fins with the end of a plastic cable tie.
End result not quite like new but a significant improvement. This was all done in the garage, so a pressure washer wasn't a good idea ( probably not a good idea outside either ). 






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Post Options Post Options   Thanks (0) Thanks(0)   Quote red leader one Quote  Post ReplyReply Direct Link To This Post Posted: 22 Nov 2017 at 12:27
Clever.
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Jim Mac View Drop Down
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Post Options Post Options   Thanks (1) Thanks(1)   Quote Jim Mac Quote  Post ReplyReply Direct Link To This Post Posted: 22 Nov 2017 at 16:27
The great Guzzi Guru Pete Roper sets them to 0.10 in and 0.15 out. I follow that
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Post Options Post Options   Thanks (0) Thanks(0)   Quote graham550 Quote  Post ReplyReply Direct Link To This Post Posted: 23 Nov 2017 at 09:15
Thanks Jim Mac. 
Since I posted this yesterday I have also read elsewhere that it seems 0.10 mm inlet and 0.15 mm exhaust is favoured on roller cam engines by those in the know. So it looks like I should ignore what it says in the owners manual ( 0.15 /0.20 ).
This may explain my confusion yesterday afternoon when I could not get a 0.15 feeler gauge in the gap on the inlet side. So I called a halt to proceedings while I found out the truth !
Now: Norge GT8V 2015, BMW K1200S 2005
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Post Options Post Options   Thanks (1) Thanks(1)   Quote Jim Mac Quote  Post ReplyReply Direct Link To This Post Posted: 23 Nov 2017 at 11:44
Graham

the big essential with the Norge 8v is that you use the proper oil 10w 60,  do not drop a grade and buy the best brand you can afford - they really do run at high temps.

the Roller tappet issue would appear to be more prevelent in colder and wetter climes where the bikes are used more often o short runs (<100 miles)
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Post Options Post Options   Thanks (1) Thanks(1)   Quote theoneandonly Quote  Post ReplyReply Direct Link To This Post Posted: 23 Nov 2017 at 12:01
the proper settings are 0.15 in and 0.20 ex 
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