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GE |
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GE Guest
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Kickstart |
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Kickstart The Oracle
Joined: 04 Feb 2002 Karma :
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Posted: 12:33 - 14 Feb 2002 Post subject: |
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Hi
A big end on a 2 stroke going is highly unlikely to wreck the piston, likewise the other way round. I have seized more 2 stroke pistons than I can remember (20+ I think), and of those I have never had to replace the big end at the same time.
However, if the bike (fairly new at X reg) has been thrashed badly and abused, and so killed the piston, it is quite possible that the same abuse could have damaged the main bearings and the big end bearing.
2 strokes use roller or ball bearing cranks. Conrods will virtually never bend on any engine unless seriously abused. By that I mean revved way beyond the red line (ie, thrashing it hard and then knocking it down a few gears) or drawn water in. I managed the second in a car doing about 4500rpm (came round a corner, saw puddle, decided it hadnt been raining that hard so couldnt be that deep, so put my foot down, but the water was 30cm deep at the shallow bit in the middle of the road). This shortened the con rod by only about 0.5mm.
By the way, if you want a laugh the pics of my wrecked car engine are here:-
https://www.alfa-pages.co.uk/?go_to=oops
To be honest it sounds to me that you are half expecting to do just as much work to your new engine as was required to fix up the old one.
All the best
Keith |
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GE |
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GE Guest
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Posted: 20:07 - 14 Feb 2002 Post subject: cheers |
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Cheers Keith that has put my mind at rest for now. I think i'll get the big end looked at anyway, just to check before I get the mechanic I know to fit the engine in my bike. I was just worried that the sudden seizure of the piston could have damaged the big end. They said they would replace the little end bearing for free (if it is needed) I don't think that the big end bearing should be worn at all due to the low milage. Have you by any chance heard of Abtech who will be re-chroming the cylinder?
I think my old engine has died the death really- 22000km, damage to big end, crank and piston..... I think a 'donor' engine would be required to sort that at a reasonable price. The only snag now is that I loose my seventh gear!! Does anyone have any good opinions about the new Mito engine. Will it produce more or less power than my original engine?? Are there any other Mito owners here by any chance? |
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Kickstart |
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Kickstart The Oracle
Joined: 04 Feb 2002 Karma :
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Peje |
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Peje Renault 5 Driver
Joined: 04 Feb 2002 Karma :
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Posted: 18:26 - 15 Feb 2002 Post subject: |
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Mito Mad Cunt--If its siezed big style then the bearings are bound to be fuked!!!
Mine had a light seizure and the wee-end bearing is fuked!!! It rattles like mad!!
Peje- Buy a 2nd NSR much more reliable!!! |
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Old Thread Alert!
The last post was made 22 years, 126 days ago. Instead of replying here, would creating a new thread be more useful? |
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