Hi guys,
My old 1987 oil boiler is giving me grief in spades, got ~80,000kms on the clock. Got it with lowish compression on cyl one, and intermittent 3/4cyl running.
Traced it down to leaking exhaust valve and remedied that, had good compression across the board after that, and some money later
so once it was sorted, I stuck the head etc back on redid the valve clearance and bobs ya mothers brother, went like a cut cat and I was a happy chappy.
Now one week after this, I was letting a friend try the bike out and I pulled up next to him on moorhouse ave after going round the hills (on my other bike) and noticed a loud metallic pinging/grinding noise from the engine
He said it was still running fine, powerwise etc not sure what was going on. So we got it home and it sounded terrible. Imagine like a stone has made its way into the inside of the frame and is rattling about - or the exhaust baffle was gone.
But it's neither, after checking those out i was getting a little worried - I rode it to my parents (5mins away) to show my dad a week or two later and noticed it was on 3cylinders once again
Drained oil, after pulling starter motor (got that refurbed as it had just died) and noticed a small trace amount of metal paste in the bottom of the oil - only a few mils and not concentrated, more spread thru the oil finely.
Noise is def from down low in the bike, top end is fine - I pulled the rocker cover again to check the cam chain wasn't loose somehow and mashing about, it's not.
Big end bearings, clutch somehow eating itself? where should I begin gixxer gurus??
Exhaust and sump will be coming off at somepoint in the nearish future now i've got the starter back
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engines out the bike now, so i'll just have to find a replacement and see. Sump pickup had a freaking washer in it too, which was probably the rattle - god only knows how it made its way in..
Originally Posted by FruitLooPs
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