How can the rear cylinder head be cleanly removed from an X0/X1?
Posted: 21 Aug 2021 20:50
I've spent a good hour trying unsuccessfully to remove the rear cylinder head from my newly rebuilt X0 (to helicoil a soft thread for one of the three cam cover cap bolts which wasn't practical to do in-situ).
The four studs that hold the cam followers and tappet block are doing an excellent job of stopping me from getting the head out even though I can rotate it 360 degrees in the area above the barrel studs in the frame. I even removed the front rear shock bolt to give me a bit more room. I'm getting the impression that the only way to remove the head is by undoing the front engine bolts and loosening the rear ones - or am I missing a trick?
For completeness:
Tomorrow I'll have a go at loosening the front engine bolts, etc. however if there's a way to remove the head without so much effort that'd be wonderful. Then I can repair the thread and get back to running in the bike (it's done a good 40 miles so far and is great fun).
The four studs that hold the cam followers and tappet block are doing an excellent job of stopping me from getting the head out even though I can rotate it 360 degrees in the area above the barrel studs in the frame. I even removed the front rear shock bolt to give me a bit more room. I'm getting the impression that the only way to remove the head is by undoing the front engine bolts and loosening the rear ones - or am I missing a trick?
For completeness:
- I still have the airbox in situ
- The rear downpipe (that goes to the exhaust) has been removed
- The metal engine breather is out of the way
- The rear carb is out of the way
- The petrol tank is out of the way and the top monoshock bolt has been removed, the bike is on the centre-stand
- I've tried removing the head to the left and to the right, by twisting it and by rotating it - it's been very close to coming out at times but keeps running out of room and one of the tappet block studs stops it from emerging
Tomorrow I'll have a go at loosening the front engine bolts, etc. however if there's a way to remove the head without so much effort that'd be wonderful. Then I can repair the thread and get back to running in the bike (it's done a good 40 miles so far and is great fun).