Yamaha COOLANT IN OIL rhino 686

[spody3]

i have replaced the water pump assembly because of a broken seal. i ordered the whole kit and replaced it. today i took it out for a test run and i am still getting coolant into the oil. it is sucking in through some where because the coolant level is obvisly going down inside the raditor. is this a blown head gasket or what else could cause this problem?? please let me know what you guys think.. thanks alot

 

[badinfluencerace]

it sounds like a leaking head gasket to me

 

[c&c rhino]

when you put the new complete pump in, if you dont line up the slot correctly, it will push the circlip out of the groove on the shaft and the impeller shaft wont have seal contact. it will leak like a siv. usually a blown head gasket will leak coolant into the combustion chamber, you dont really see much coolant in the oil. it will over flow out the resevoir because the coolant galleys and hoses are being pressurized from the combustion chamber.

 

[JoeyD23]

Troy comin through dropping science! REP IT UP!

 

[spody3]

found the problem today boys.... cracked cylinder..

 

[c&c rhino]

bummer.

 

[spody3]

brand new cylinder too. like 15 miles on it.. not saying who i got it from but not happy.. thanks alot troy for the info on the water pump. i pulled it out and checked everything that you said. thanks man

 

[c&c rhino]

no worries. feel free to ask any questions.

 

[07fj]

brand new cylinder too. like 15 miles on it.. not saying who i got it from but not happy.. thanks alot troy for the info on the water pump. i pulled it out and checked everything that you said. thanks man

brand new as in from Yamaha new 660?

 

[spody3]

no not from yamaha..