What are some of the causes of a blown head gasket & how can you tell if that 's the problem.
Over heat is the number one killer of head gaskets.
- Joined
- Apr 13, 2003
- Messages
- 21,312
- Age
- 54
- Location
- Schofield, WI
- Website
- www.totallyamaha.com
- Country
- USA
- Snowmobile
- 2020 Sidewinder SRX
What makes you think it the head gasket and on what?
My 2018 Vector over heated on me while I was working on it adj. the track alignment in the summer. I am not sure if it just ran out of the over flow tube under the engine or did I blow the head gasket. I refilled the coolant on the bottle but probably put too much in & when I warmed it up on my 1st ride this year it leaked again. How can I tell if I blew the head gasket. What to look for. I ran the machine for 3 days & put on about 300 miles. Every time i stop I looked to see if there was any blue antifreeze under the belly pan dripping on thre ground but there wasn't any. You thoughts
Mooseman
I'm not all knowing. Post your question in forum.
- Joined
- Nov 3, 2009
- Messages
- 3,944
- Location
- Greely, Ontario
- Country
- Canada
- Snowmobile
- '07 Venture MP (gone)
'07 Phazer FX (gone)
'09 Phazer GT (gone)
'10 RS Venture GT (My current ride)
'10 Nytro FX (son's)
- LOCATION
- Greely, ON Canada
Mine puked coolant out the overflow when at WOT. Unknown cause as it was like that when I bought it unbeknownst to me. It actually ran fine otherwise.
https://ty4stroke.com/threads/rs-venture-gt-losing-coolant.159762
https://ty4stroke.com/threads/rs-venture-gt-losing-coolant.159762
- Joined
- Apr 13, 2003
- Messages
- 21,312
- Age
- 54
- Location
- Schofield, WI
- Website
- www.totallyamaha.com
- Country
- USA
- Snowmobile
- 2020 Sidewinder SRX
You wont blow a head gasket overheating on the stand checking track tension. I told you this before. You ran it for 300 miles and no problems, I would say its fine and you are overly paranoid.
Make sure the coolant is at the proper level. Run the sled up to operating temp on your stand. Shut it off. If you have a bad gasket or seal it will should show itself at this point.
- Joined
- Jun 1, 2004
- Messages
- 7,693
- Location
- sudbury on
- Country
- Canada
- Snowmobile
- 2016 apex xtx
2011 apex xtx
2009 phaser rtx/x
1997 et410t/r
1988 vk 540
ran quite a few sleds to heat shut down with no issues.
if i have disturbed the cooling system, replaced/removed line or coolant swap, i check level after next 3 rides. top it off after 1st one. might need a splash after 2nd one but not usually. after 3rd is just to confirm that level is there.
if i have disturbed the cooling system, replaced/removed line or coolant swap, i check level after next 3 rides. top it off after 1st one. might need a splash after 2nd one but not usually. after 3rd is just to confirm that level is there.
Thank's everyone for all the information.
74Nitro
VIP Member
- Joined
- Feb 18, 2013
- Messages
- 5,227
- Age
- 52
- Location
- Dublin Ontario
- Country
- Canada
- Snowmobile
- 2019 Sidewinder LTX
The only time I've seen a head gasket fail is if it has been overheated WITHOUT coolant. Even then, it is up for debate that the head gasket is the issue, as the head and/or block start to distort quickly when ran, and overheated without coolant in them.
IMO, overheating a Yamaha with coolant in it to the point that it shuts itself down will never cause a head gasket failure.(unless it was a case of detonation)
The reason that in some cases they sometimes over heat to the point of head gasket failure(or head warpage) is because the coolant sensor needs coolant against it to function properly. When that happens, the sled doesn't shut itself off.
IMO, overheating a Yamaha with coolant in it to the point that it shuts itself down will never cause a head gasket failure.(unless it was a case of detonation)
The reason that in some cases they sometimes over heat to the point of head gasket failure(or head warpage) is because the coolant sensor needs coolant against it to function properly. When that happens, the sled doesn't shut itself off.
