MCW
Somebody's talking crap here & it ain't the tree!
Well if everything works out, I'd like you to run it a bit. Keep in mind I may very well destroy the kit during the my little experiment.
Well head forth young man and experiment away
Oh boy, this ain't good, MS441
- Thread starter Modifiedmark
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Well head forth young man and experiment away
gmax
Addicted to ArboristSite
Dennis Cahoon
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Hey on a side note Dennis are many guys in the true racing scene over in the states actually running AM kits? I know a few Aussies are starting to run them based on cost alone and are genarally quite happy with the results. These are on saws that you would probably class as wood's ported though
Most cylinders used for racing have the head cut off, welded on, and re-nicisiled.....I personally haven't used a (AF)one, but I would, and have thought about it. Reason I haven't is I perfer bikesaws.
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komatsuvarna
Arboristsite MVP
I wouldn't have a problem running an AF cylinder, But I'd like to have a nice slug and rings to go with it. In my weak mind that's the biggest un-fixable problem I see with buying a kit. The ports can be worked on a bit, but it's hard to make a piston better.....
MCW
Somebody's talking crap here & it ain't the tree!
Well how about building a bikesaw from an aftermarket Chinese bike?
Can I ask how many aftermarket pistons you've seen fail that hasn't been a direct result of poor rings, port bevels, or a circlip letting go? I don't thin the pistons are the issue. As far as ported saws I've seen a fair few OEM pistons let go when somebody has gotten too excited with a grinder but it's not the piston's fault.
komatsuvarna
Arboristsite MVP
Sure can Matt. None , but I always use OEM rings, clips, and pin if possible. I've probably installed less than a handful AM pistons honestly, but AFAIK they are all still running. Im just an OEM guy myself as long as they are still available, but I really have no other reason other than thats what I prefer.
On the other hand, I have personally seen a few AM pistons that I wouldn't think about installing to see how long they would last....
XSKIER
Addicted to ArboristSite
So mark, Is the owner of the saw ready to spend the dough on an OEM P/C? New or used? Is that MS460 fixed yet? I'm still curious the outcome, just not into politics enough to keep up with these guys.
Well, if were done with the problems of the worlds economys, the US cost of living, and the union bashing lets get on with the problems at hand.
I made the call to the vendor of the cyls this morning as was told that since this happened twice in a row on the same saw, there has to be some other problem with the saw itself and not the fault of there P/C.
So at this point I'm on the hook for two of these junks. I'm not going to go on anymore about it, since saying much about a site sponsor is frowned upon here, but will say, buyer beware.
To answer another question, a new OEM P/C is supposed to be ordered and will get put on the saw as soon as it gets here. I am quite sure that will end the problems for it as long as its kept in tune and fed 10% or less ethanol fuel.
I made the call to the vendor of the cyls this morning as was told that since this happened twice in a row on the same saw, there has to be some other problem with the saw itself and not the fault of there P/C.
So at this point I'm on the hook for two of these junks. I'm not going to go on anymore about it, since saying much about a site sponsor is frowned upon here, but will say, buyer beware.
To answer another question, a new OEM P/C is supposed to be ordered and will get put on the saw as soon as it gets here. I am quite sure that will end the problems for it as long as its kept in tune and fed 10% or less ethanol fuel.
Mastermind
Work Saw Specialist
I'll say something......that's complete bull #### and crappy customer service.
Will be interesting to see. Keep me updated for sure.
Never used a 441 afm cyl but have on others. So how long was the 441 afm cyl's lasting before failure?
Yeah I was shocked as well, not even a refund for one of them. I was polite too! Tried hard not to be insulted at it being my fault.
Kev the first one lasted halfway through the first cut with it here in my back yard, while the second one made it out to the job and almost till the second tank was dry....
There is nothing interesting to me about the OEM stuff, it will fix it good as new. There is nothing else wrong with this saw. It got melted down with some bad fuel and fuel restrictions. Brgs seals etc all great, passed vac and pressure test as well as I have ever seen.
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Mhusby
ArboristSite Lurker
I have seen this before.
I have seen this before when I was a diesel engine failure analysis man. Detroit Diesel had this same problem. It is called Port Edge Clipping, caused by the piston ring ends not being bent in if you will. The rings were made wrong, which caused the failure. This happened in the late 70's or early 80's.
I have seen this before when I was a diesel engine failure analysis man. Detroit Diesel had this same problem. It is called Port Edge Clipping, caused by the piston ring ends not being bent in if you will. The rings were made wrong, which caused the failure. This happened in the late 70's or early 80's.
Wow. I hope you plan on calling them back when the OEM fixes it!
sachsmo
Addicted to ArboristSite
We'll see. It snagged a ring, period.
Mark, I for one would like to know who refused your money back because with as many parts as I purchase I would not use them at all. If they won't stand behind an obvious manufacturing defect and instead blame it on the user (which I consider you to be way above the average builder here) I'm not taking that chance.
Give me a call sometime this week.........
Give me a call sometime this week.........
At this point no one knows that an OEM will fix it eh?
Quit trying to stir stuff. I know you have a hard time with that though.
The new OEM will fix it, there is nothing and I mean nothing else wrong with it.
We'll see, I really dont think there worth the trouble. Typical BS seller.
