Friends sled 99 mm700

 

coolant builds too much pressure and starts coming out the over flow bottle, and when u crack the rad cap it comes out of the over flow even faster.

 

anyone have any suggestions  on what might cause that.

 

                                  thanks

if u have to much coolant in it it will over fill when hot but should only dump out enough coolant to get it to the right level.

theres a bleeder for the coolant sytem on the extension under a rubber cap, it could have an air lock . park down hill and open this bleeder to let the air out of the system. also under the hood there is another bleeder, almost in the center of the motor where ther coolant enters the head park up hill and bleed the air out of the sytem, also check the function of  the rad cap to see if it is workin properly.

that should do the trick for yah you might have to go for a boot and re bleed the system to insure no air is trapped.

Thanks for the tip i'll give that a try.