Did you purge the cooling system to remove all air pockets after changing the coolant??
Gushing fluid when it gets hot like that, especially if soon after a coolant flush and change sounds like you had an air pocket that expanded and forced coolant out of the overflow reservoir; while the overheating and fans not working since, with you shutting things down as soon as it gets hot again/the temp spikes suggests you might still have an air pocket in there that needs to be purged. I know Spyder's cooling systems are supposed to be self purging, but I've found a
LOT that
are not, and seen
very few that
actually do self purge after filling with new coolant!
To purge properly:
- Raise the front of your Spyder a little on blocks under the wheels or on axle stands;
- Check the coolant level in the overflow reservoir and fill up to the top mark with coolant and leave the cap OFF;
- Start and run the engine at or just above idle for about 30 minutes, making sure that the coolant level in the overflow reservoir remains above the ADD level all the time, letting it overflow if it wants to and keeping an eye on the bubbles coming out - big bubbles, no troubles, but they should gradually slow and eventually stop bubbling out, while lots of small foam like bubbles suggest you've got gasket &/or head problems;
- During the 30 min idling time, watch/listen for the thermostat to open/close and the fans cycle on/off at least twice before shutting the engine down with a full overflow reservoir and putting the pressure cap back on the reservoir, making sure that it passes the first tight feeling latch position and gets to the final 'lock' position;
- Let the engine cool and as it does (occasionally, anyway) watch to ensure that the coolant level in the overflow reservoir doesn't go below the lower ADD mark as the cooling/contracting coolant gets sucked back into the radiator/s, topping up as necessary to keep it above that mark;
- Lower the front of the Spyder;
- Test ride for long enough to ensure it goes thru at least two fan on/off cycles, keeping an eye on the temperature to make sure it remains within acceptable bounds and making sure that, even if some coolant is expelled from the overflow reservoir, the level doesn't go below the lower ADD mark as everything cools down again.
- Repeat the entire process as necessary to ensure that you've got ALL the trapped air pockets out of the cooling system and that the level of coolant in the overflow reservoir (which will likely get quite high and possibly overflow when everything is hot!) doesn't go below the lower ADD mark when everything cools down again.
Once you've done all this and coolant level is remaining above the lower ADD mark once everything's cold again, you should be good to go.
If your cooling system still persists in spewing out a lot of coolant when it gets hot and there's lots of bubbles appearing in the overflow reservoir, check the size of those bubbles - big bubbles mean there's still air working its way out, repeat the purge process as necessary; while jlots of small, foam like bubbles &/or excessive pressure in the reservoir mean you've got a gasket &/or crack problem somewhere. And if your coolant is draining out overnight so that it's always dropping below the lower mark on the reservoir, maybe leaving a puddle under the Spyder or a sign of a leak on the engine, radiators, or in the plastic trays under the engine upon inspection the next morning, then yeah, you've got a leak.
Good Luck!
