bsabloke wrote:If you did want the engine, always a possibility to get it by courior. Seen others advertied with a courior for £60. Maybe worth looking into.
Rich
Thanks mate its just taking another gamble on another replacement engine.
I might get lucky like Al and get a minter or get stung with a bike that's been abused....
Yes always a bit of a gamble. It is a gamble i took, which worked out ok.
If this is the route you take you will still have the current engine to rebuild, with no time pressure (as your bike is running)
Rich
I made sure I got the engine of someone on here who had used it in his bike and knew it was strong, and he knew the owner from the bike before it was writen off...by being revered over when it was parked!
You won't lose much on outright top end horsepower, because ring/bore wear has less effect at higher revs.
If you consider that there's only a fraction of a second for compressed and burning gas to leak down past three ring sets, (all with end gaps 120 degrees apart if it's been built right) you're not going to lose much compression at all.
But at lower revs you lose proportionally more.
I actually manage to start and ride home (5 miles or so) a Honda single that had a 5mm hole in the piston crown, which admittedly wouldn't run at less than 6,000 but ran, nonetheless.
Now that WAS a bit down on power.....
Point is, the engine will still develop most of its power, you'll notice torque dropping off, but incrementally and gradually, so it's not really noticeable as a day-to-day change.
It's only when you put in a rebuilt or nearly new engine that you can feel the difference- it's certainly noticeable then.
Lastly, it's rare that you actually use full power on the road, maybe 1% of the time? So if it's only noticeable at full revs, and it's rarely used at those revs, most of the time it's fine.
I think on balance if it's not using too much oil I'd put up with it, and refurb another engine ready to go in as time and funds allow. As ever, the cost of refurbishing an engine is out of proportion to the value of the bike, so you might be better off financially picking up another bike, swapping your good bits over, and either selling the clunker on to Marty as yet another for his collection or breaking it.
It's not falling off, it's an upgrade opportunity.
