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radiator cap presure #1092258 10/10/11 05:31 PM 10/10/11 05:31 PM
Joined: Nov 2010 Posts: 11 southwest C cmg OP member
cmg OP member C Joined: Nov 2010 Posts: 11 southwest	100% drag car pushes water into over flow at 200 degrees im useing at 16lb cap im thinking i should lower it to 14lb what do you think??

Re: radiator cap presure [Re: cmg] #1092259 10/10/11 05:54 PM 10/10/11 05:54 PM
Joined: Jan 2003 Posts: 32,942 Grand Prairie,Texas stumpy I Win
stumpy I Win Joined: Jan 2003 Posts: 32,942 Grand Prairie,Texas	I'd stay with the 16lp. 14 will puke quicker and won't do anything to lower the temp.

Re: radiator cap presure [Re: cmg] #1092260 10/10/11 05:58 PM 10/10/11 05:58 PM
Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska	Quote: what do you think?? A 16 or any cap should not puke at 200 deg F, that's not even 212 sea level boiling temp. I'd get another 16 lb cap and if you have access to a Stant radiator pump kit I'd pressure check the block when hot to 15 lbs for a combustion leak and the current cap to 15 lbs also but to k.i.s.s. most likely cap is shot live every 24 hour block of time like it's your last day on earth

Re: radiator cap presure [Re: cmg] #1092261 10/10/11 06:00 PM 10/10/11 06:00 PM
Joined: Jan 2003 Posts: 25,836 Rio Linda, CA John_Kunkel Too Many Posts
John_Kunkel Too Many Posts Joined: Jan 2003 Posts: 25,836 Rio Linda, CA	If it pushes water out the overflow below the boiling point you have the radiator too full or something else is pressurizing the system (blown head gasket). Do you have a "dangling disc" radiator cap? The INTERNET, the MISinformation superhighway

Re: radiator cap presure [Re: John_Kunkel] #1092262 10/11/11 12:29 AM 10/11/11 12:29 AM
Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska	Quote: you have the radiator too full Do you have a "dangling disc" radiator cap? rad too full will do it if you have a regular non recovery cap it will not be drawn back in. With the dangling disc (recovery) cap/overflow bottle you want it full to the brim and it will burp/cycle to remove as much air as possible. Check that before replacing the cap (& get the right one you need) recovery or non recovery & recovery is better as eliminating alot of the air slows rust and less air pockets give more uniform cooling (better/less hot spots) live every 24 hour block of time like it's your last day on earth

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