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Post by Deleted on Jul 9, 2020 19:19:23 GMT
This will save me some $$$.
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Post by BritPete on Jul 9, 2020 19:48:28 GMT
This will save me some $$$. Lost me - Sorry
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Post by buster on Jul 9, 2020 19:57:42 GMT
four valves per cylinder, triumph twin perhaps?
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Post by Deleted on Jul 9, 2020 20:40:58 GMT
Yes......this is basically a valve check on a Triumph T100 Bonneville (air cooled 2001 on).
I have a factory workshop manual but to see someone actually do it somewhat helps - and gives confidence. I don't know if anything is out of tolerance yet (will be attempting the job tomorrow) but even if I have got to replace some shims, that is also covered on there too.
Hopefully that makes sense now Pete.
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Post by Deleted on Jul 11, 2020 22:31:10 GMT
Bugger it. Time to find some shims. Ugh!! Cams have to be lifted out hence my annoyance.......need to also buy a tool from Triumph to lock the backlash gear at around 65 USD. Ah well.
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Post by Deleted on Jul 11, 2020 23:50:00 GMT
Who's up for a maths session then?
Buster? Need to check my sanity on this.
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Post by Deleted on Jul 12, 2020 2:36:26 GMT
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carlthebandit
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Post by carlthebandit on Jul 12, 2020 6:59:33 GMT
Sorry Nick it’s too much imo I would keep the brushed alloy finish to match the other covers.
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Post by buster on Jul 12, 2020 8:54:01 GMT
you got me interested now, so had a quick read online, general consensus seems to be that its a bit of a pig of a job to do (one guy was so tee'd off after setting his that he sold his bike) I copied this snippet as it seemed the way to go to me
slimdog1 Registered Joined Jun 29, 2012 8 Posts #16 • Feb 20, 2013 After taking measurements rotate crank so no valves are fully open. Just loosen the cam caps(dont remove)and prop the cam up a little. Use a magnet to retrieve and replace shims. If you need to spin crank a little for some valves its ok. Shims are the same as the honda cb bikes and my honda dealer had a free shim exchange. All exhaust except 2 were tight. All intake were in spec. Tighten cam caps and re install cover.
couldnt find any mention of the backlash tool, maybe why people are finding the job difficult, also glad carl said it first but the brushed alloy cover suits the bike better IMHO
do you know any smokers? you'll need the traditional fag packet for the calculations
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Post by Deleted on Jul 12, 2020 21:33:51 GMT
Thanks Buster. It's strange though as all the info I have found online say that you cannot do that - the cam (or cams) need to come out on this model. If you have the time check this guy out on youtube. He does waffle a bit but you will see what I mean if you fast forward to the relevant parts. When I get the shims out I'll measure them with a micrometer and run the maths....see if we all agree on what the new shim thickness should be. www.youtube.com/watch?v=C-6k-trH5OI&t=908s
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Post by Deleted on Jul 12, 2020 21:44:14 GMT
PS - thanks for the feedback on the cam cover guys......one chrome cam cover heading to ebay.
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Post by Deleted on Jul 13, 2020 3:28:31 GMT
PS - thanks for the feedback on the cam cover guys......one chrome cam cover heading to ebay. I think part of me thought that the chrome valve cover complimented the chrome top covers on the carbs.....some people are probably reading this thread thinking, it's your bike, do what you want. But I very much appreciate your views and I am influenced by them....I reckon you are right. Thanks again guys.
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Post by buster on Jul 13, 2020 5:26:03 GMT
I wouldnt bother buying a backlash tool, it looks to me like you could get the same thing with a couple of m4 bolts and a bit of 6mm tube on each one?
I see what you mean from the video, its probably much easier to simply lift the camshafts out. probably take a couple of goes to get them back in on the timing marks, but I wouldnt think it will be that hard.
the shims themselves usually have their sizes etched into them, the chap in the video is nice and organised and sets them out in a sensible way ready to calculate the new shim size.
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Post by bodie on Jul 13, 2020 16:17:42 GMT
try fitting both covers nick it might dull the sound of the tappets
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Post by Deleted on Jul 13, 2020 20:33:53 GMT
the shims themselves usually have their sizes etched into them, the chap in the video is nice and organised and sets them out in a sensible way ready to calculate the new shim size. Certainly true but apparently that the shim reading is not etched but printed onto the shims, therefore it is very rarely still visible after at least the first 12k...so I have now got hold of a digital caliper. Got some new tools today from Harbor freight in preparation for the job, just need to crack on with it now. Will report back. P.S - shims for this bike available in sizes ranging from 2.00mm to 3.20mm in increments of 0.025mm.
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