If it was ridden on the street it would have been in daylight only (no lights fitted as no alternator) Or if the bike had lights they were run off a battery, just not for long.
Engine Identification
- Thread starter Hagarr
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The step will be at the top but hidden.
That way the liner cannot drop due to the step and the head stops it from rising.
If you remove one of the allen bolts then inside the hole you should be able to see the step.
- Joined
- Nov 4, 2007
- Messages
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- Joined
- May 7, 2005
- Messages
- 7,687
Post #20 shows measured at 81.07mm with piston marked 0.5mm oversize, so possibly the old RGM 920 kit with the weak pistons. Norvil also did a kit but no details seem to be online of what it was made up of.
- Joined
- Nov 4, 2007
- Messages
- 1,506
The step will be at the top but hidden.
That way the liner cannot drop due to the step and the head stops it from rising.
If you remove one of the allen bolts then inside the hole you should be able to see the step.
I've machined many blocks and barrels over the years and the top diameter does not appear to have any step, diameter is approximately 86mm, it is possible but unlikely.
In the case we would install this type of plain sleeve we would machine and leave a step at the bottom of the barrel, below the area of ring travel and of course the cylinder head stops liner movement from the top.
I haven't removed an allen bolt yet to see any evidence.
Is this a measurement you've confirmed by measuring actual liner?Yes my mistake top of the liner should be 85.7mm not 81mm
If it is then perhaps it does have a step.
My measurement is approximate of course as I'm unable to check actual diameter as sleeve is installed.
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