Re: Possible Engine Seizure - REBUILD THREAD
I had a few things turn up over the last few days so I got to do a bit more here. The stuff that arrived was a valve spring compressor, a lapping handle and some grinding paste.... So I did the head today.
The valves came out nice and easy but were pretty rough:
BUT, I checked them all and they all seem straight - which is a bonus!
So I clamped a drill to the bench, wrapped up the ends of the valves, and got to them with various grades of emery paper, lubed with oil:
I used 60, 80, 120, 600 then 1200 grades so they are now silky smooth 8)
Then, I lapped them into the head. The paste I got had a coarse and fine paste at either end of the tub and, for my first time, it went very smoothly. I watched a couple of videos on YouTube first so I knew what to do. So here they are reinstalled:
Quite pleased how it all went
So, Im still waiting for all the parts to turn up from David Silver Spares, but, the jugs are away with the new +1.00 pistons at the local shop getting rebored, and should hopefully be done by Monday. Also, i managed to find some new engine bolts at Inox so I dont have to go hunting to replace them all at the local fixings shop.
So my to-do list now stands at:
Pull valves, check straight, de-coke and lapp into head.
Clean out crankcase of old oil and metal shavings
Get cases, head and side covers cleaned up - possibly blasted can't afford blasting, I'm just gonna wipe down
Change all oil seals
Fit new cam chain and tensioner
De-coke pistons and fit new rings - Gone with brand new pistons & rings
Need someone to helicoil one bolt in the RH cover (oil filter hatch) as one removal went a bit wrong Sorted (for free)
Get down to the local fixings shop and get a load of replacement case bolts & screws
Reassemble and install into bike!