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I took off the timing chain cover, to see if anything was broken or loose but all looks good to me; [IMG] Also plenty of oil getting to the...
Curiosity got me checking the other side and guess what?... [IMG] Arse... :(
Yes, fully expecting the guide and seat to be NG but it would be nice if I didn't need to change the con-rod as everything else is just...
Test fitted the piston with the barrel tightened down and it looks OK, goes up and down smoothly;. [IMG] [IMG] Doesn't seem to be tilted in the...
Piston broke... Well not any more; [IMG] Cleaned up nicely, honed the gudgeon pin hole and it all looks good, rings and bore are OK so it's now...
As said, blanking plates because the front and rear cylinders are identical and interchangeable but they need the coolant unions and belt pulleys...
Looks like my Winter 'project' has arrived early... :rolleyes:
It looks it although the picture does distort it slightly due to the 'fish-eye' perspective and the lens being offset to the left but I'm fearing...
Not looking good; [IMG] Piston and exhaust valve have made contact. Not removed the valve yet as I don't have a spring compressor although...
Valve looks OK from down the exhaust port. I didn't check the nut under the hex plug, 'cos the plug won't shift even with a 2ft long bar on the...
Thanks for the info. Yes compression tested at WOT and both carbs are fully open. It is quite possible that the compressions were different on...
FWIW with the clearance reset to spec the compression is still way down, tested again (this time cold); RH - 145psi LH - 45psi :(
I think the bores are cast iron? because when I had the sump off I did a magnet test on the inside and it stuck. So unless there's some other...
Thanks for the advice, these are new to me (despite them being older than the ark!). I don't think the slight bend is enough to set the opening...
Actually although the pushrods look straight there is a very slight bend on the exhaust rod, noticeable when rolling on a true flat surface. Don't...
Engine turns over by hand fine, valve gear off now but seemed OK before (albeit with 0.3mm less valve opening). Pushrods look fine and move...
Head nuts OK.
In the workshop now, got the rocker cover off and nothing looks bent or broken but the valve clearance on the exhaust valve has grown. I...
Sounds promising, I'll be having a go tomorrow. :upyeah:
No idea, should it be?
