head gasket blown?

[89250rhonda]

i was out rideing my 250r and i think my head gasket when....
i was in 3rd gear 3/4 trottle and suddenly the engine cut out and a huge clowed of smoke came out of the exhaust and some water came out of the radiator over flow pipe, is this the head gasket?
thanks

[89250rhonda]

any ideas what else it could be anyone ?????

[k7mm]

Well if you did blow the top end gasket,you would have sucked in air and probably some antifreeze,hence the white smoke.I do'nt think it's your piston,because the 250R will run all the way up until you shatter a piston.Have you checked your compression?I am not sure why the liquid came out your overflow in this event.Will your engine still turn over?

[trx250r 88]

i have blown head gaskets and coolant has came out the overflo.

[latheboy]

I would guess if you blew a head gasket coolant may come out the overflow. Exhaust gas get pushed into the water jacket and pressurizes the coolant system.

[jcs003]

thats a inexpensive fix. just replace the gasket and order an extra while you are at it. i have blown a few head gaskets and my fix is to use a smaller diameter head stay bolt and use a nylock nut. be sure to just tighten up to the bracket. over tightening it could cause it to twist and make another blown gasket more likely to happen.

another thing. check the head for flatness when its off.

[Ruf Racing]

Originally posted by latheboy
I would guess if you blew a head gasket coolant may come out the overflow. Exhaust gas get pushed into the water jacket and pressurizes the coolant system.

^^ Agreed ^^ It happens!

[89250rhonda]

thanks guys, am guna take the head off at weakend n see whats going on

[profab250R]

when you tighten your head stay bracket, loosen your other motor mount boilts so the entire engine can adjust to the head stay, after head stay is tightened then tighten other motor mount bolts.

Also that is text book blown head gasket symptoms.