Rannsachair
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- Lochgilphead, Argyll, Republic of Scotland
My 69 Triumph Bonneville has not been getting used due to a blown head gasket. I bought a new gasket set some time ago, but it ended up sitting at the back of the garage for the best part of a year due to some health issues.
So a top end strip down commenced, only to find some minor corrosion in a bore. Suspect it was petrol sitting on top of the piston ring...
So barrel off ...
An a quick run down with a hone...
Some nice person had polished the crank many years ago, you can still see the shiny bits:
Then rebuild the top end, only discover after a straight forward reassembly (no warping of head)
The metal ring round the bottom of the pushrod tube is a sliding fit and was sitting correctly, over a short time it lifted and the lower seal popped out
So strip down again, sitting correctly now:
Head torqued down, valve clearances adjusted:
New battery fitted and back on the road at last, was expecting to do the job in a couple of hours, adding the block strip down to hone and rebuilding the whole engine to discover the seal popped, so strip down again and rebuild took near to 10 hours......
Still worth it
So a top end strip down commenced, only to find some minor corrosion in a bore. Suspect it was petrol sitting on top of the piston ring...
So barrel off ...
An a quick run down with a hone...
Some nice person had polished the crank many years ago, you can still see the shiny bits:
Then rebuild the top end, only discover after a straight forward reassembly (no warping of head)
The metal ring round the bottom of the pushrod tube is a sliding fit and was sitting correctly, over a short time it lifted and the lower seal popped out
So strip down again, sitting correctly now:
Head torqued down, valve clearances adjusted:
New battery fitted and back on the road at last, was expecting to do the job in a couple of hours, adding the block strip down to hone and rebuilding the whole engine to discover the seal popped, so strip down again and rebuild took near to 10 hours......
Still worth it