WOW !!, the cylinder skirt looks pretty beefy to be breaking off, does the piston skirt come down a fair amount past the cylinder skirt at BDC ? I would think it should not as to the piston typically get`s much smaller as it gets to mid point, piston to cylinder clearance may increase a lot, could be a big factor to skirt issues.
Cylinder Skirt Broke off.
- Thread starter Deucer
- Start date
WOW !!, the cylinder skirt looks pretty beefy to be breaking off, does the piston skirt come down a fair amount past the cylinder skirt at BDC ? I would think it should not as to the piston typically get`s much smaller as it gets to mid point, piston to cylinder clearance may increase a lot, could be a big factor to skirt issues.
mechanic at my dealer said he's heard of a couple with the skirts broken off in that 1500-2000 mile range. Thinks they, and other dealer should be turning up the oil pumps a little bit at initial setup. hopefully something that simple could prolong engine life.
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TurboMatt
Well-known member
FYI, turning up the oil consumption with do nothing to prevent the cylinder skirt from breaking off.
There are tons of Pros out there with over 2000miles on the on original equipment.
I'd say the only real chance you have is make sure you go to church every Sunday and pray REAL hard.
OR pull your engine apart and check the skirt clearance(correct if neccessary) and then while your in there put in either a "fix" kit or a RKT kit to take care of your pistons.
Or course this last method voids your warrenty, so kinda a catch 22. Either you can have a warranty and a questionable motor or no warranty and a motor that will last.
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knifedge
Well-known member
--Replacing the piston and rings with high quality replacements(not OEM) and turning up the oil pump to lube the crank/rod bearings solves the engine issues.
--I would check out the RKT drop in replacement kit. It gets rid of the excessive OEM piston side loading, will not flake the rings, is not picky about fuel, and adds power.
http://www.2strokeheads.com/Polaris800DropIn.htm
--If your hung up on the great OEM warranty you may have, then the cycle of destruction may well continue.
--I would check out the RKT drop in replacement kit. It gets rid of the excessive OEM piston side loading, will not flake the rings, is not picky about fuel, and adds power.
http://www.2strokeheads.com/Polaris800DropIn.htm
--If your hung up on the great OEM warranty you may have, then the cycle of destruction may well continue.
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How many miles do you have on yours?
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knifedge
Well-known member
--I currently do not own a Polaris. However, I intend to get a 2013 Pro and, unless Polaris actually fixes these issues, it will receive a RKT drop in kit and adjusted oil pump before it touches snow.
--I prefer reliability, more power, and an engine not picky about fuel rather than keeping my fingers crossed around a warranty card.
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You lost me at "I dont own a Polaris"
One of the 12's in our group went down Tuesday. Det 7 code then died. Checked the crank by turning the primary and it was fine...no rough spots and still felt like it had compression but not full. Tried to start it up to limp it down but it sounded like running on 1 cylinder and after 5 seconds it went BANG! I am assuming the skirt dropped into the crank! Started bleeding green and had to tow her down in 3' of dry snow
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knifedge
Well-known member
---Good opportunity to build the engine right with a fresh engine from the dealer
-Drop in piston kit
-adjusted oil pump
--Spend the money to fix it right or spend another day to tow out again
http://www.2strokeheads.com/Polaris800DropIn.htm
-Drop in piston kit
-adjusted oil pump
--Spend the money to fix it right or spend another day to tow out again
http://www.2strokeheads.com/Polaris800DropIn.htm
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Polaris executive meeting,
"I know what we'll do, let's just jack up the price of the 13's to pay for all the failures"
"Do you think that the consumer will pay that much?"
"Sure they will, they always have in the past, they just don't know it, and you have to remember, it more "flickable" now!"
"Give that man a $40'000 bonus this year, he just saved us a great deal of money"
"I know what we'll do, let's just jack up the price of the 13's to pay for all the failures"
"Do you think that the consumer will pay that much?"
"Sure they will, they always have in the past, they just don't know it, and you have to remember, it more "flickable" now!"
"Give that man a $40'000 bonus this year, he just saved us a great deal of money"
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tbeaton
Well-known member
there is some discussion on a thread about turning up the oil pump. word from carl's cycle is the pump is "progressive" ( might not be the correct word) but i guess that it cranks out more oil based on how much throttle you give it, so it has been said that turning your oil pump up only helps at idle and low speed. word is, premixing is the only thing that will help, but that only helps top end. my buddy cranked his up 3 turns and has not seen a change in oil consumption.
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tbeaton
Well-known member
does this kit work? its cheaper than a warranty and sounds good, but is it to good to be true? would you buy this or a warranty? mine is up in november and its either extend the warranty or buy a fix.
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knifedge
Well-known member
--Fix it now or fix it later with warranty and OEM parts again and again
--Check out the website, maybe call him up, get his recommendations for where you ride, review his posts here on Snowest. If your comfortable with the product, buy it, if not, buy something else or go with OEM. Whatever keeps you on the snow, out of the shop, and puts a smile on your face.
--Check out the website, maybe call him up, get his recommendations for where you ride, review his posts here on Snowest. If your comfortable with the product, buy it, if not, buy something else or go with OEM. Whatever keeps you on the snow, out of the shop, and puts a smile on your face.
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snowmobiler
Well-known member
id go warranty unless your rich
Why are you pushing this product? You dont even own a polaris!
How would a drop in piston fix sideloading issues with a rod radius problem?
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knifedge
Well-known member
--Cat Suzuki 800 engine has more "rod ratio" than CFI 800. OEM factory Polaris CFI engines come with excessive (worn out spec) piston clearances and wears out worse from there. Excessive clearances cause the knocking and fatigue on the piston and cylinder skirts. Then one day BOOM. It is like buying a new sled and engine except with 4000+ miles on the pistons, but you have a really cool warranty, right?
--Replace the pistons and rings(because rings flake also) with high quality units and problem solved
--Turn up oil pump 32:1 or more for crank issues -- check thread below
http://www.snowestonline.com/forum/showthread.php?t=277595&highlight=oil+pump
-- Do your own research, buy any kit you want. I'd be almost certain any aftermarket kit is a great improvement over OEM. Again, research, and get what makes sense for you.
--I think next year, with a longer riding season and more miles on the 11's and 12's, you will see alot more sleds come home blown up.
--Replace the pistons and rings(because rings flake also) with high quality units and problem solved
--Turn up oil pump 32:1 or more for crank issues -- check thread below
http://www.snowestonline.com/forum/showthread.php?t=277595&highlight=oil+pump
-- Do your own research, buy any kit you want. I'd be almost certain any aftermarket kit is a great improvement over OEM. Again, research, and get what makes sense for you.
--I think next year, with a longer riding season and more miles on the 11's and 12's, you will see alot more sleds come home blown up.
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