ben125 Posted May 14, 2011 Share Posted May 14, 2011 hi i was wondering if anyone could help me?im not sure if my radiator cap is doing its job(letting pressure out) is there any way i can test it?? Link to comment Share on other sites More sharing options...
barkwindjammer Posted May 14, 2011 Share Posted May 14, 2011 hi i was wondering if anyone could help me?im not sure if my radiator cap is doing its job(letting pressure out) is there any way i can test it?? is there any reason to doubt that its working ? Link to comment Share on other sites More sharing options...
Moderator DirtyDT Posted May 14, 2011 Moderator Share Posted May 14, 2011 The rad cap should only let anything out if the pressure gets too high. you may have an air lock. Never try to take the cap off when, or soon after, the bike has been run as you well seriously hurt yourself. Link to comment Share on other sites More sharing options...
YPVS TONE Posted May 14, 2011 Share Posted May 14, 2011 Check the coolant level in the expansion tank when the engine is cold then again when the engine is hot .You should find the level has gone up in the tank when hot as the coolant expands in the rad when hot and transfers it to the expansion tank then draws it back into the rad when it cools down. Link to comment Share on other sites More sharing options...
ben125 Posted May 15, 2011 Author Share Posted May 15, 2011 is there any reason to doubt that its working ? well it just seems knackered for some reason but when it over heated it wasnt doing anything. Link to comment Share on other sites More sharing options...
barkwindjammer Posted May 15, 2011 Share Posted May 15, 2011 Its not meant to do anything except seal the expansion bottle Link to comment Share on other sites More sharing options...
Moderator Airhead Posted May 15, 2011 Moderator Share Posted May 15, 2011 overheating on a DTR? Thats often a head gasket leak, there are lots of cheap pattern gaskets around and if they are fitted dry they dont last long...been there, got the T shirt Link to comment Share on other sites More sharing options...
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