97stageIVBansh Posted May 28, 2009 Report Share Posted May 28, 2009 ok so i go to ride monday afternoon, crank it up, everythings perfect, when i get on the throttle antifreeze pours out of the overflow, it will empty the radiator but there will still be coolant in the overflow, eventually the radiator will go low enough and it wont come out anymore but the radiator will be almost completely empty? i checked to make sure no hoses were smashed between anything everything should be running freely, any ideas on what it could be or what i should replace? water pump or impeller or any of that? im clueless and its pissing me off i just put this new top end on and i cant even ride the shit thanks again Quote Link to comment Share on other sites More sharing options...
Darthwall Posted May 28, 2009 Report Share Posted May 28, 2009 did you do the compression test? Quote Link to comment Share on other sites More sharing options...
97stageIVBansh Posted May 28, 2009 Author Report Share Posted May 28, 2009 did you do the compression test? yeah man its right at 150 on both cylinders i think it was doing it before the new topend and thats why the old one went because i burnt it up Quote Link to comment Share on other sites More sharing options...
sheefreak Posted May 28, 2009 Report Share Posted May 28, 2009 Kinda sounds like you may have a head gasket leak. It is pushing all the radiator fluid out of the Radiator ? If it was doing it before, maybe your head is warped? Does it feel crazy hot? Quote Link to comment Share on other sites More sharing options...
97stageIVBansh Posted May 28, 2009 Author Report Share Posted May 28, 2009 Kinda sounds like you may have a head gasket leak. It is pushing all the radiator fluid out of the Radiator ? If it was doing it before, maybe your head is warped? Does it feel crazy hot? cant be because i have a new head and new cylinders and new pistons and new gaskets? its coming out of the one overflow hose from the back reservoir behind the seat, but it will stay semi full and the radiator will empty it self Quote Link to comment Share on other sites More sharing options...
Darthwall Posted May 29, 2009 Report Share Posted May 29, 2009 is there a chance that your new top end got too hot and warped a little bit Quote Link to comment Share on other sites More sharing options...
yamahaman244 Posted May 29, 2009 Report Share Posted May 29, 2009 Ok so what do u mean the top end warped alittle like the head Quote Link to comment Share on other sites More sharing options...
Darthwall Posted May 29, 2009 Report Share Posted May 29, 2009 Ok so what do u mean the top end warped alittle like the head the head more than likely when alluminum heats up it has a lower boiling temp than say cast iron or steel and can warp quite easy with a little neglect it will ruine a top end quick all it takes is the right temp to be reached and its toast Quote Link to comment Share on other sites More sharing options...
GrMeyer Posted May 29, 2009 Report Share Posted May 29, 2009 let it cool and on a cold start pull the rad cap...start it and if you see bubbles in the rad then you have a gasket leak... Quote Link to comment Share on other sites More sharing options...
97stageIVBansh Posted May 30, 2009 Author Report Share Posted May 30, 2009 ok so i put the new gasket in, cranked it and i have bubbles, but also when i retorqued the head with the new gasket, now antifreeze bubbles come out of the head bolts, what does that mean Quote Link to comment Share on other sites More sharing options...
sheefreak Posted May 30, 2009 Report Share Posted May 30, 2009 Must be stock head if you are using a gasket? Antifreeze coming out of the studs just means you don't have a good seal at the head gasket. After market heads generally use little o-rings to seal each stud and sometimes accompanied by copper washers at the top. One thing you can try if you haven't already is torque the head to the cyls first before you torque the cylinder base nuts. If it is just slightly warped, somethimes this will work, but sounds like it is worse than that. I am not completely familiar w/lapping the head, sounds easy, but someone who has done it may chime in and steer you in the right direction. If you have a sheet of fairly thick glass or some other extremely flat surface you should be able to put the head on it and see it is warped. Quote Link to comment Share on other sites More sharing options...
Misssppelllleddd Posted May 30, 2009 Report Share Posted May 30, 2009 When you take the head off, take a new razor blade and flashlight and lightly skim the top of your cylinders with the flashlight behind it. If you see any noticable light underneath the blade then you will either have to get your cylinders redecked or you can use JB weld and fill in the gaps. Do the same thing with the head as well. I had that problem once and I used JB weld and it fixed it right up! :thumbsup: Quote Link to comment Share on other sites More sharing options...
LiftdT4R Posted May 30, 2009 Report Share Posted May 30, 2009 Is the water impeller working? Sounds to me like the water might not be circulating. Quote Link to comment Share on other sites More sharing options...
shee4speed Posted May 30, 2009 Report Share Posted May 30, 2009 I put thread sealer on the studs when intalling my head. Quote Link to comment Share on other sites More sharing options...
Bansheemex Posted May 30, 2009 Report Share Posted May 30, 2009 I had the same thing happen to my banshee. I had a milled head that was warped and it did the same thing that you are explaning us. Have your head checked. I replaced my head with a new stock head and it totally eliminated the problem. Quote Link to comment Share on other sites More sharing options...
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