All the crankshaft bearings were replaced, I took the crank and piston rods to a engineer and he ordered up what I needed at the right size. Saved me a right headache. As for the grinding of the valve and seats, (what a boring and tedious job) never thought that, that part of the job would end.


[IMG]local://upfiles/10939/F381DF3EDD26440598F237A562847D33.jpg[/IMG]



[IMG]local://upfiles/10939/A9F2F1A74E0F4439865F63FD8263315A.jpg[/IMG]

 

Did you put back in the standard pistons?

Also was there any wear on the shift drum & shift forks and dogs?

 

Yes, hand grinding the valves and seats when they are heat corroded is hard work L. It is far easier to get the valves and seats machine cutted in a shop for like 250 dollars even if it hurts the wallet. That will ensure valve and valve seat angles and width’s are correct which is important to make them durable for many years.

Since your engine was in fair condition you have saved a lot of money by doing a renovation in time.

 

The old pistons were reused as they were in good order, just had to clean them up Trips.

R1000. All valves were replaced with new seats, and although the starting price for the new ones were £40 each, done a deal with honda which saved me about £8 each off the price and the seats were discounted as well. I think that had I not done them myself, then I would'nt appreciated what it takes to do one of these engines.

[IMG]local://upfiles/10939/99EFF54807724C14900E3DA5630E04C0.jpg[/IMG]

 

You mean you replaced both the valves and the valve seats? Very well done if you managed to do this by yourself.

 

I cheated with the seats. when the crank went to have the bearings measured I had the old seats taken out and new ones put in as I had no tools to do this right. Then it was the task of seating the valves in which was easier with the new seats, but still took time. The valve stems were easy to do. In general I've enjoyed the rebuild and have got loads of satifaction of doing the bulk of the tasks. Most jobs were also done with a good friend who is like myself and just likes bikes. This it has to be said is one of the hardest rebuilds that I have ever attempted, but the most enjoyable. But I would never do it again as the money put into the build went way over budjet............................

 

Great !I'msureit will serve you for many years. It is a shame that the parts for renovation are so expensive but the cost will be spread over many kilometers.

 

Good job that I have no intentions of ever selling this bike. Been out yesterday and did 125 miles and although it felt very different from before, it was awesome. The power increase has been a very welcome suprise. The engine, even without going above 5000rpm feels stronger than I remember it.

As I'm now off for two weeks and the forcast looks good for the next few days, then there will be plenty of time to get out and ride. The plan is to do 300 miles by wednesday so the valves can be done.

 

Good for you, let's hope for real nice ( i.e. non-British) weather :-)

It would be very interesting to hear if the valve lash has changed much. I haven’t checked mine that I should since the engine was assembled after porting and valve job almost 10 000 km's ago []

 

Will let you know. Another 100 miles done today. Will do some more tomorrow. Everything going ok. Nothing appears to have come loose so fingers crossed that it stays that way. Only appears to be using some oil but this must be down to the new rings bedding in to the honed sleeves.