Coolant Question

[Justin]

I did a complete rebuild, ladaldadada. Redid EVERYTHING new everything.

I have about 60 miles on it and I'll notice every once and a while there will be a silver dollar size puddle of coolant under the engine. its right at the front of the engine, and I'd think the water pump but its tight... where else could I look? Its not bad at all, its a small amount of coolant over a long amount of time but it needs to be fixed.

Also, could someone post the diagram of all the coolant passages? Thanks.

 

[mrnickleye]

I don't believe I've ever seen a schematic of the passages in the engine, but the TSRM, under 'cooling system' has a diagram of the outside ones.

http://www.cygnusx1.net/supra/library/TSRM/

 

[Stretch]

Maybe it's your radiator, or a hose connecting to it. Possibly old and cracked, or your rad could have a bump and slightly cracked etc... Did you look under and try to see any wet areas?
eric

 

[turbo]

Recheck the hose that connects the radiator to thermostat housing and if the clamp is on far enough. Mine did the same thing until I readjusted the clamp.

Geoff

 

[Justin]

I just got the radiator fixed, that was leaking but it wasn't the same leak. so I'm SURE that's 100%


all the clamps are good, as are the hoses, but i will try re-adjusting them.


maybe it was a vacuum diagram i was looking at, not coolant, oh well

 

[Boosthpy]

I know it sounds dumb but maybe you left the drain plug to the radiator a little loose if you drained it by that. Better check jic.

 

[Justin]

I know it sounds dumb but maybe you left the drain plug to the radiator a little loose if you drained it by that. Better check jic.

naw, its definatly coming from the front of the engine... that's why i suspected the water pump...

its dripping off the front of the engine, this is for sure.

 

[IJ.]

T Stat housing can ooze a bit if it and the other side weren't cleaned spotless before assembly Justin.

 

[jimi87-t]

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Are you sure it's not coming from one of the sensors, I did a pressure test on mine before I started it, and found a small leak coming from a temp sensor.

 

[miggles]

check the hose that shaped like a 90deg bend.Its right under the cps and tucked in behind the thermostat housings just above the water pump.
In the pic above see the 2 sensors on top of eachother,its the hose under that. It joins onto the metal pipe that runs "to heater"
i had it leak and burst on me one time and it was leaving little red dots.had me stumped for ages till i decided to remove the water pump.got to the ps resivour and saw the slightest split in the hose.

 

[87_7MGTE]

are you sure its not the water pump itself? check the pee hole.

 

[Anh]

check the hose that shaped like a 90deg bend.Its right under the cps and tucked in behind the thermostat housings just above the water pump.
In the pic above see the 2 sensors on top of eachother,its the hose under that. It joins onto the metal pipe that runs "to heater"
i had it leak and burst on me one time and it was leaving little red dots.had me stumped for ages till i decided to remove the water pump.got to the ps resivour and saw the slightest split in the hose.

That L-hose (hell hose) tends to leak alot of coolant from even a small hole or split. It makes alot of noise too, so spotting a leak when the car is hot isn't too difficult.

 

[Justin]

are you sure its not the water pump itself? check the pee hole.

wtf is the pee hole?



I THINK i found the problem... I watched it for about 10 minutes today and its leaking from in between where the water pump meets the block and where the fan meets... obviuosly it can't be seeping through metal so it must be the water pump bearing!


Thanks for the suggestions, I'm going to swap this out and see if it cures the problem-0

 

[87_7MGTE]

wtf is the pee hole?

pee hole = the little hole on top of the water pump. if water comes out of it, it means you water pump is shot.

 

[Justin]

pee hole = the little hole on top of the water pump. if water comes out of it, it means you water pump is shot.

oooo, maybe its that!


I'm pulling it out this weekend so we'll see.

thanks for the help everyone

 

[IJ.]

Justin: Water pumps aren't very expensive it might be an idea to have one on hand with a gasket and change it out anyway if you're not sure on it's history.