check this " running hot" problem out...

[blown91stang]

ok...i put a 180 t-stat in..hit 230 put a 160 hit 220 took the 160 out and gutted it..put it back in...looked inside of rad, with car running..there isnt no flow what so ever...
what is the problem...

i have a griffin nascar rad.
edelbrock water pump (brand new) but im not sure its the reverse rotation.
big electric fan...

i blew 3 head gaskets last year...some rtv made it inside of the rad.

im just wondering why im not getting any flow in the rad..

i mixed 40/60 dex cool (for aluminum rad.)
took it out for a ride...hit 200...mind you there is no thermostat...
i just went out,and the lower rad hose was sucked in,the hose that goes to my over flow..was sucked in also..i pulled the cap off...but was kinda hard to get off do to pressure sucking it down...

what is the problem...???????????

 

[Venom4.6]

Did you burp it? Might have air pockets in there. Also double check your serp. belt routing.

 

[MustangPunk302]

Did you make sure the water pump is flowing in the right direction? Reserve rotation pumps can get you. They should read "Can be made reserve rotation" lol...

 

[DropTopR]

Also, that dexcool can clog up coolant passages. My brother in law's Blazer had that stuff in it from the factory, and it actually blew an intake gasket cuz it plugged up the head coolant passages.

 

[blown91stang]

how do you, berp a system...?

 

[_jb_]

how do you, berp a system...?

Leave the radiator cap off and let the car run for a while. That should allow any air to escape from the lines.

 

[Venom4.6]

Leave the radiator cap off and let the car run for a while. That should allow any air to escape from the lines.

Also squeeze the upper radiator hose several times. Once the system warms to operating temp, you should feel warm coolant flowing through the hose. Burp/squeeze the hose during this time also. Double check the part # of the water pump you installed. Make sure it's the correct one. You also might want to check and make sure you installed the T-stat facing the right way.

 

[blown91stang]

took the 160 out and gutted it..put it back in....there isnt a thermo in it...

 

[DropTopR]

With no TS in, which I do in the summer, you don't have to burp the system, cuz it fills completely. Everytime I've done it, I was able to put all the coolant I drained out back in. Are you still using the stock gauge, cuz after I swapped on my aluminum heads, my stock gauge has always read hotter than it is. My datalogging from my tweecer always says it's about 15 degrees cooler anyway.

 

[HISSIN50]

im not the smartest guy around, but am i the only one who thinks it is weird that the lower hose and cap were both sucked down. the lower hose is somewhat common - runnin one with an internal spring helps...but ive never seen a cap be sucked down (i inferred that there was a vacuum inside the radiator....if that is correct).

i just wanted to reiterate that for clarification and for others whom are smarter than me to kick around.

good luck.

 

[blown91stang]

im not the smartest guy around, but am i the only one who thinks it is weird that the lower hose and cap were both sucked down. the lower hose is somewhat common - runnin one with an internal spring helps...but ive never seen a cap be sucked down (i inferred that there was a vacuum inside the radiator....if that is correct).

i just wanted to reiterate that for clarification and for others whom are smarter than me to kick around.

good luck.

i feel the same way....never have i heard of this happening...im thinking its internal....

im going to buy a hose with a spring...or make a lower made out of steel tubing...

 

[HISSIN50]

i feel the same way....never have i heard of this happening...im thinking its internal....

im going to buy a hose with a spring...or make a lower made out of steel tubing...

im of the same mind. were i to have that problem, i might do the same - run metal tubing with a small section of rubber or two, where necessary, for connections.

i know others have had the same problem with the lower hose collapsing, but with the other issues you have, im wondering if that would be a band aid for the actual malady. but it is probably a good idea nonetheless (i say that so that if you do the fabbing, and the problem still exists, you are not super disappointed). im pretty decent with cooling systems, but not familiar with your symptoms.....good luck.