LiL Tweety has developed another small setback

The radiator in Tweety has a Water fill neck in between the top of rad and the top thermostat housing. The problem is that it keeps puking water out and filling up the catch can.(real quick).The fill neck is a little lower than therm. housing, could that be the problem? It did the same thing w/old engine,just not as bad. It acts like its got lots of air in system. I've tried everything except raising the radiator. Got any suggestions?

You need to talk to Randy (Ky Mustang) He had the same problem.

IDT-572 wrote:You need to talk to Randy (Ky Mustang) He had the same problem.

X2!

What is the pressure rating of the cap you're using? Seems like if it's to low, then it'll puke a lot more.

Greg

Not full of water or head gasket[s] .

Lem Evans wrote:Not full of water or head gasket[s] .

Lem, the thing is, I can't get it full of water. It acts like its always full of air. The cap was a 7# and I now have a 16# a buddy of mine said to try a 22# and see if it would force some air out. My next step is to maybe try to raise the rad. up a little above the therm. neck.

Are you running an electric water pump or regular belt driven one? If it's an electric one, you should be able to purge the air that way.

Rick,
Forgot to ask you tonight, are the head gasket tabs sticking out on the front of the engine? Maybe you have a gasket turned around? Make sure the rad fill is high as possible.
Good luck.
Al

Electric pump, and the head gaskets were installed w/FRONT on top and in FRONT. I'am thinking the rad. is sitting to low.
This engine has been a real test os SANITY and PATIENCE,in which I'm running out of real fast. Just another day in the LIFE OF A GEARHEAD

Is it possible for you to (temporarily) raise the radiator up a couple of inches & wire-tie it up while idling to see what happens?

If that cures the problem, try using a small surge/fill tank, mountd above the thermostat, ala '60s FE Fords, or, do it the hard way & move the radiator up permanently.

bbf-falcon wrote:The radiator in Tweety has a Water fill neck in between the top of rad and the top thermostat housing. The problem is that it keeps puking water out and filling up the catch can.(real quick).The fill neck is a little lower than therm. housing, could that be the problem? It did the same thing w/old engine,just not as bad. It acts like its got lots of air in system. I've tried everything except raising the radiator. Got any suggestions?

Did you make the switch from standard Cj heads to the A heads on this engine also? Was wondering if the extra height that the A's have over the CJ's could be making the problem a little worse now than before. Just a thought.

Travis

On the way old forum there were water pump problems. Some turn out to be a missing backing plate on the water pump.

Not sure on your setup but if your using a engine plate you should also be using a backing plate as well..

Hope that helps 8^)

i run a motor plate and no backing plate on my electric water pump 2 yrs no problems yet..........

Here is an interesting read for you..

http://www.1320x.com/profiles/blogs/drag-racing-cooling-systems

dkp

I had the same prob with one of those filler necks in the hose. Some years back, I read the above article,it made plenty of sense to me, so, I did away with the filler and used only the rad fill. At the time I was using a small Mopar rad that was a foot or so below the 460 t-stat housing with a Moroso WP driven by 12v.

I ran the pump while filling the sys full, shut the pump off with cap still off, then the sys would burp air out a few sec later, fill rad with pump on again, turn off pump, burp again, kept doing this about 4 times till it quit "burping" after pump was shut down a few seconds then the system was filled, with pump running the final time, cap replaced and had no more problems with it.

Get the hang of it and it only takes five minutes or so. That is what I did, it may or may not help on yours.

That above article did make alot of sense I will do what it says.
Thanks Guy's

My 94 T-Bird had a slight burping problem after replacing the head gaskets. I just kept a eye on the level, and it went away.
Al

w/elec pump --use a 16lb cap or better on the inline . cap must be for a recovery system , fill to max cold with pump running engine off. overflow hose must be in tank so it can recover coolant just like pass.cars. when hot tank fill and works just like late model road cars , so a little extra water should be in tank so system doest suck in air . give it a try, always worked for me

Thanks Dan

TravisRice wrote:

bbf-falcon wrote:The radiator in Tweety has a Water fill neck in between the top of rad and the top thermostat housing. The problem is that it keeps puking water out and filling up the catch can.(real quick).The fill neck is a little lower than therm. housing, could that be the problem? It did the same thing w/old engine,just not as bad. It acts like its got lots of air in system. I've tried everything except raising the radiator. Got any suggestions?

Did you make the switch from standard Cj heads to the A heads on this engine also? Was wondering if the extra height that the A's have over the CJ's could be making the problem a little worse now than before. Just a thought.

Travis

X2... What Travis said...





Doug...