engine heating once again

[grave77]

I have been observing the car lately and here they are:

When I fill the car with water it takes time to sink in as if there is something blocking the way.

I have blocked the heater pipes as we dont need it here and its causing in efficency of the AC. but I was wondering if this would complete the water flow at the end of the engine?!

as long as the car is moving the car wont heat up, the clutch is working aslong as the car is not overheating, once it overheats the clutch seems to stop working. so I will replace it, but if the radiator is blocked I guess the clutch wont function propperly too.

there is slight water loss, but after the car was overheated, maybe its the cap releasing pressure or I was thinking if the water pump is leaking from the back where the pipes has a rubber O-ring.

Questions:

would an old Catalytic converter cause overheating like that? if yes how would the engine behave?

how can I know that the water pump is functional, note that I'm not using the thermostat and the water is flowing all the time regardless of the engine temperature.

last week I have replaced 2 exploded hoses due to overheating, when I park the car and the car was a little overheated, the water temp increases when the engine stops and it blew up the small hose on the top of the water pmup first, after 2 weeks ( yesterday ) it blew up the hose going from the engine to the heater core. ( that was pain to replace !!! )

this is a full report untill yesterday, final observation was that I found alot of calcume build up on the pipes, if I pour in a small glass of vinigar and run the engine for few min then drain that out, would it help cleaning it?

Thanks guys, can't survive without your help

[632 Regal]

When I fill the car with water it takes time to sink in as if there is something blocking the way. Possibly normal

I have blocked the heater pipes as we dont need it here and its causing in efficency of the AC. but I was wondering if this would complete the water flow at the end of the engine?! I think the water needs to circulate through the valves byt not the heater core to complete its path

as long as the car is moving the car wont heat up, the clutch is working aslong as the car is not overheating, once it overheats the clutch seems to stop working. so I will replace it, but if the radiator is blocked I guess the clutch wont function propperly too. Replace the clutch first then Radiator if other remedies do not work, cheap fix

there is slight water loss, but after the car was overheated, maybe its the cap releasing pressure or I was thinking if the water pump is leaking from the back where the pipes has a rubber O-ring. Releasing pressure is the goal of a good cal, exploding hoses means the cap is bad

Questions:

would an old Catalytic converter cause overheating like that? if yes how would the engine behave? Big loss of power, will seem like you have NO power and it will most likely stink of sulpher in the exhause. If very clogged it is possible for the engine not to start.

how can I know that the water pump is functional, note that I'm not using the thermostat and the water is flowing all the time regardless of the engine temperature. No thermostat is bad, the first cylinders encountering cold water will wear just as a comd cylinder would wear in a vey cold climate much much faster than in a warm climate with a thermostat.

last week I have replaced 2 exploded hoses due to overheating, when I park the car and the car was a little overheated, the water temp increases when the engine stops and it blew up the small hose on the top of the water pmup first, after 2 weeks ( yesterday ) it blew up the hose going from the engine to the heater core. ( that was pain to replace !!! ) Need a new expansion tank cap!!

this is a full report untill yesterday, final observation was that I found alot of calcume build up on the pipes, if I pour in a small glass of vinigar and run the engine for few min then drain that out, would it help cleaning it? Try a HUGE bucket of vinegar, but heed that the vinegar will also have the tendancy to eat aluminum over time. There is better war=ys to get the calcium buildup out. A new radiator is a much better choise than introducing an acid into an aluminum engine.

Thats my guess and I'm sticking with it.

[grave77]

well...I replaced the cap, removed the radiator and tookit to a cleaning shop, still the car is heating up especially when I throttle it on the road, I cannot seem to see the water circulating, I will put back the thermostat but I removed it to see if the water flow is normal. untill now all what it shows it head gasket.

Thanks bro.