Awesome and sad ride report

Claviger

Aspiring Student
Joined
Jul 25, 2014
Messages
6,934
Location
Olympia Washington
Ride
'21 Z H2, '14 R3R, '02 Daytona 955i
So after getting Mufasa back from Nels running smoother and better than ever before I decided to go on a small 300 mile group ride. It included this magnificent bit of twisties:
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Highway 47 in Oregon, amazing few miles of tight technical 30mph corners with good camber and NO traffic!!

Then we went to Seaside:
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While at Seaside we ate some fantastic Steaks (fillet mignon):
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Then we cruised back North towards home and I broke my cam chain, and my heart a little, to have the Rocket suffer a completely unanticipated mechanical failure.

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Luckily, the rider of the R1200GT was a fantastic guy and let me borrow is truck and trailer and tow the Rocket home in shame, but better to tow in shame than be stranded.

Worklog here:New Cams New Thread
 
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Sad too hear Rob. :(:eek:

I reckon there is much more wear on those nut's and Allen bolt's flats now than anyone else's R3s except warp's and Steel's.;)

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Was it stock chain, did it let go at high revs and what is the valve train prognosis?

Valve damage is assumed to occur if you do a cam belt in a car engine while driving and with 4 valves per cylinder in our R3 mills it would seem likely as well.
 
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Even more likely with high comp pistons biggish cam and oversized valves. Will do some testing to see how bad they are, if at all. Tearing the bike apart now

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Visually everything is fine in the valve train. This is as far as I'm going tonight.

All journal surfaces are flawless as are the cam lobes.

I'll need a new chain guide, it got chewed a bit.

With the cams out the valves are all sealing. I sprayed some MAF cleaner in the ports, and it doesn't drain or leak!! Huge ****ing win. Going to get a scope in the bores and inspect the piston tops to see if they kissed soon. The shafts could still be bent, but if I don't see any kiss marks I'm calling them good and moving forward.

Few pics:
Intake tappet diameter
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Exhaust tappet diameter
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Where I'm at now
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How the cams landed after the break

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Fingers crossed, I hit the jackpot!!!
 
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