Hi all
I've dismantled my 650 engine for the first time - and I'm on a steep learning curve!
I've yet to look at the head properly but it mostly looks in pretty good condition - except for a heavily scored camshaft bearing surface in the block, and corresponding (but not so severe) scoring on the camshaft. This is at the oil pump end. My question is whether this is worth fixing, and if so how do I go about it? I've seen repair bearings online - and I'm assuming the block needs machining and the bearing insert fitted? Anyone got experience of this?
The repair bearings I have seen are only drilled once for oil. How does this work when the block has two holes diametrically opposite?
Finally (for now!) - I've seen 'new' blocks online for 350 Euros. Any feedback on their quality? By the time I've paid for machining & fitting of the camshaft bearing, removal of a broken stud, fitting of a couple of helicoils - I wonder if I may as well get a replacement block instead? Originality is not a concern here.
TIA
I've dismantled my 650 engine for the first time - and I'm on a steep learning curve!
I've yet to look at the head properly but it mostly looks in pretty good condition - except for a heavily scored camshaft bearing surface in the block, and corresponding (but not so severe) scoring on the camshaft. This is at the oil pump end. My question is whether this is worth fixing, and if so how do I go about it? I've seen repair bearings online - and I'm assuming the block needs machining and the bearing insert fitted? Anyone got experience of this?
The repair bearings I have seen are only drilled once for oil. How does this work when the block has two holes diametrically opposite?
Finally (for now!) - I've seen 'new' blocks online for 350 Euros. Any feedback on their quality? By the time I've paid for machining & fitting of the camshaft bearing, removal of a broken stud, fitting of a couple of helicoils - I wonder if I may as well get a replacement block instead? Originality is not a concern here.
TIA