it's an automatic
i was abit blunt on the details
so i'll add a bit more
so its a 1994 corolla csi ltd hatch
and it had engine problems to begin with
so first just flushed out all the old water it was all orange, clearly from the owner running it on water all these years
so waited till it wasn't so bad
then installed a thermostat as it didn't have one previously
and new head gasket as the old one was pretty much non-existant due to the corrosion
all was well for maybe 30-40 minutes
drove into the city and then one of the hoses burst because running it on water destroyed it, so i bought new hoses
installed them
then took it back to the mechanic and he noticed that the water pump was fairly battered so he replaced it
and at the same time he used that solution to flush out all the bullshit that could be sitting there
then drove it home it was ok. went to pick up a mate and noticed the temp was flying up again
one of the welds in the pipes was f@$ked, leaking everywhere
so took it back to the mechanic and he fixed that
i got it back today and all was well till literally 2 streets away from home
i punched it on a round about and when i left it, the temp jumped up again
got home, checked under the hood and it was just bubbling, no leaks at all.
i looked at what some of you have said and i'm guna take it into consideration
but is it possible that due to everything else being corroded by long usage of water that the radiator could be in the same state as some of the parts were? so should i replace the radiator?
or could there still be a blockage somewhere?
or is everything just so far gone that i should just look for a new engine?
i was actually considering to upgrading to a 4A-GZE, but if it's not the engine and it's something else screwing up on me i don't know if i want to spend stupidly
any advice is appreciated thank you