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angellonewolf
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looks badly scored to me from that pic
Bill Edwards
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Ok, it's jiggered.
But,after pricing the parts if it's going to be scrap why not keep running it to destruction?
While it runs it'll get the job done, what's to lose?
But,after pricing the parts if it's going to be scrap why not keep running it to destruction?
While it runs it'll get the job done, what's to lose?
agreed, but before that maybe worth having a quick shufty at ebay to see if a Chinese copy top end kit is available, then decide. Either way you're right, it's bollaxed so you have nothing to lose. Except that the lack of compression will cause a loss of power, so it will maybe struggle more though.
Bill Edwards
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Yes if parts are economically available think carefully before doing more damage. Otherwise, plenty of oil and full throttle!
Kram
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I think the pics make it look a lot wose than it is. Tool was 117, new engine 60 or barrel and piston kit 15 quids. I dont know how complicated the crank assembly is but I guess it will just need a new bearing. If there is a steel liner I doubt it is damaged yet.
Plan is after drilling 3 more holes I will strip it and order parts.
Im very skeptical that too much oil could make it lean, oil does burn and my first car was 10:1 on one cylinder. Lasted a long time. If its lean it will be the carb setup or the fact it was vibrating loose.
Plan is after drilling 3 more holes I will strip it and order parts.
Im very skeptical that too much oil could make it lean, oil does burn and my first car was 10:1 on one cylinder. Lasted a long time. If its lean it will be the carb setup or the fact it was vibrating loose.
angellonewolf
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prob as @pdg said use it and finsh the job off with luck you can get it done and then if the kit was £15 for the piston and bore do it and get it running again if not needed put it on gunmtree you will prob get £50/60 or just put on gumtree say the bore is scored but its working and sell it for £30 ?
dobbslc
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A 4 stoke piston is lubricated with the engine oil pumped from the sump via jets in the crankcase and crank, it doenst need fuel to stop it seizing.
A two stroke is lubricated from the oil that comes through the carb (in a pre mix engine) too much oil will cause pre ignition by lowering the octain rating of the mix although it would need to be way too much oil put into a lowly tuned engine to do that.
We're you using it on part throttle for long periods of time? as this can cause lean running on a two stroke, it's why bike racers blip the throttle on down changes as it adds a bit more mix in as they brake! WOOORRRRR WAHH WAHHH.... BRRIINNGG BRRIINNGG BBRRIINNGGG BUBB BUBBAAARRR.
A two stroke is lubricated from the oil that comes through the carb (in a pre mix engine) too much oil will cause pre ignition by lowering the octain rating of the mix although it would need to be way too much oil put into a lowly tuned engine to do that.
We're you using it on part throttle for long periods of time? as this can cause lean running on a two stroke, it's why bike racers blip the throttle on down changes as it adds a bit more mix in as they brake! WOOORRRRR WAHH WAHHH.... BRRIINNGG BRRIINNGG BBRRIINNGGG BUBB BUBBAAARRR.
slim_boy_fat
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Bill Edwards
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My thinking is that although it may run lean on petrol the extra lubrication is likely to more than make up for running ever so slightly hotter, and with the piston rubbing more lubrication must be good. Gumming the rings and slightly less power hardly seem important compared to a scuffing engine.
