Sportsman 335-Sudden engine failure - Polaris ATV Forum
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post #1 of 7 (permalink) Old 05-29-2017, 12:17 PM Thread Starter
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Sportsman 335-Sudden engine failure

Need assistance to repair or rebuild an engine on Polaris Sportsman 335. Appears need is to determine the year to assure correct parts. I believe the VIN number is 4XACH33A4YD211533. (Picture of VIN included). I think it is a 2000 or 1999. Not 100% sure? Any input or resources for competitive suppliers would be helpful.

The photo 8099 is what I believe caused failure. Oil saturated area at this point. Problem is, I am not sure what this hose port connects to other end? Hose appears to have blown and no visible remaining hose remains? There is a male connection above this area. It has what appears to be an in-line check valve on it. Line runs up to the air breather area. I added a parts breakdown which reflects general area (circled red) of port in photo. Parts breakdown came from an on line supplier.

Basically a person was driving and the engine suddenly froze. I cannot turn engine with the pull rope. Assume I could try removing the pull-rope housing and put a breaker bar on it? Just would like to hear from experience before forcing anything. I did not find any metal filings in the oil cartridge.
Any thoughts where to begin would be appreciated.
Thanks,
KJ

Last edited by jisake1; 08-15-2017 at 08:43 AM.
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post #2 of 7 (permalink) Old 05-29-2017, 02:32 PM
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Is/ was there any oil in it?

I have no idea what the pics are showing.
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post #3 of 7 (permalink) Old 05-29-2017, 02:33 PM
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If that's a broken oil line then that's the issue.....
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post #4 of 7 (permalink) Old 05-29-2017, 03:45 PM Thread Starter
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No oil was on dipstick. I believe the oil was blowing out the port and finished draining any residual oil after parked. Hopefully the added parts breakdown helps understand the engine port location.
Thanks for quick response.
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post #5 of 7 (permalink) Old 05-29-2017, 05:39 PM
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being the 10th digit on your vin is a Y its a year 2000 , if its out or ran out of oil my bet would be a rod bearing is stuck and piston and rings would be toast wont know until you have it apart I would remove clutch cover and be sure you don't have a belt clutch issue , but by the looks of the oil line I have my doubts

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post #6 of 7 (permalink) Old 05-30-2017, 06:33 AM Thread Starter
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Quote:
Originally Posted by shane-o View Post
being the 10th digit on your vin is a Y its a year 2000 , if its out or ran out of oil my bet would be a rod bearing is stuck and piston and rings would be toast wont know until you have it apart I would remove clutch cover and be sure you don't have a belt clutch issue , but by the looks of the oil line I have my doubts
I agree regarding the items mentioned are probably toast. I am pretty certain the belt is OK, but will find out when begin tear down. Can you advise where that oil line runs from and to? Is it supposed to be connected to that check valve? Not sure what it does?
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post #7 of 7 (permalink) Old 05-30-2017, 04:54 PM Thread Starter
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Is there possibly a schematic as to how the oil lines, fuel lines, vacuum lines, etc. connect? May help me determine as to what caused the hose to explode.
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