Thermostat ?????

[jdub]

Don't know about that coolant...if you're seeing a line of residue where the coolant level normally sits cold in the overflow bottle, the Water Wetter is suspect. Pull the bottle cap and feel the tube that sits in the coolant. If you get a residue on your fingers and it feels "slimy", I'd do a flush and change coolant. Same for the rubber seal on the rad cap.

Consider Zyrex G05 (HOAT) or Toyota Red (phosphate) coolant...both have superior chemistry vs the conventional "Green" stuff.
Avoid DexCool (OAT) coolant like the plague.

 

[MA70witBoost]

Don't know about that coolant...if you're seeing a line of residue where the coolant level normally sits cold in the overflow bottle, the Water Wetter is suspect. Pull the bottle cap and feel the tube that sits in the coolant. If you get a residue on your fingers and it feels "slimy", I'd do a flush and change coolant. Same for the rubber seal on the rad cap.

Consider Zyrex G05 (HOAT) or Toyota Red (phosphate) coolant...both have superior chemistry vs the conventional "Green" stuff.
Avoid DexCool (OAT) coolant like the plague.

yeah, i've been thinking bout the toyota red. does it come pre diluted? or is it just concentrated? and i dont recall having any residue in the reservoir. then again the car had only been driven with the 50/50/water wetter mix for like 2 or 3 months.

 

[jdub]

You know, I think it does...seems I saw it at the dealer last time I was there. When I used it previously, I always bought the 100% stuff and mixed my own (distilled water).

 

[noel]

Wats the piont of taking out the jiggly thing out of the thermostat??? for some reason im still leakig coolant but not from the thermo. housing now it's coming from the lower front part of the eninge it's under the thermo houseing there a hose with some type of bolt or something similar it;s leaks from there ? anybody know wat im talking about ??

 

[figgie]

Wats the piont of taking out the jiggly thing out of the thermostat??? for some reason im still leakig coolant but not from the thermo. housing now it's coming from the lower front part of the eninge it's under the thermo houseing there a hose with some type of bolt or something similar it;s leaks from there ? anybody know wat im talking about ??

umm.....

Hi. Can you by chance use a whatever dialect you typed to English translator to ask the question in a language (English and some of us understand Spanish) we can understand?

I tried to run it through my drunk to English translator but only gibberish came out.

 

[noel]

LMAo wow sorry about that im kinda in a rush! let me start OVER! lol

That jiggly thing on the thermostat wats the big deal about taking it out??
NOW under the thermostat housing there a coolant hose it's attached to something watever it is im leaking coolant through or around that area!

NO it's not the water Pump check that it's somewhere under the thermostat housing it has a rubber hose going to it...wat is it ?? and why is coolant keaing through there ??? im stuck

 

[jdub]

Removing the jiggle valve allows a small flow at all times. It helps prevent a pressure build-up behind the stat that can hold it closed and helps to rid the system of air faster.

That fitting on the bottom of the water neck attaches to the hardline that surrounds the block. There is a small 90 deg hose that's between the two fittings...it's common for this hose to fail. If it does, you will lose ALL your coolant in a very short time.

 

[tlo86]

Removing the jiggle valve allows a small flow at all times. It helps prevent a pressure build-up behind the stat that can hold it closed and helps to rid the system of air faster.

That fitting on the bottom of the water neck attaches to the hardline that surrounds the block. There is a small 90 deg hose that's between the two fittings...it's common for this hose to fail. If it does, you will lose ALL your coolant in a very short time.

i hated that damn hose

 

[92nsx]

Yes that hose is a pain to replace. Also make sure the heat shield for that small hose is in place or else the heat from the exhaust manifold will destroy it.

Lots of good info on this thread, I think I even learned a few things.

 

[noel]

LOl yes i can see that it a motherflower to get that hose....the thermostat houseing connectes to the engine and the thermostat goes inside which has a rubber gasket ....now the ? is does the thermostat housing have a Gasket to cuz when i put it back together the housing was leakin.. should i just get some of that grey thermo sealant puddy?

 

[jdub]

There's a rubber "donut" gasket that fits around the thermostat itself. Get a new one.

 

[Poodles]

And make sure the surface it sits on is clean on both parts. No sealant should be needed.

 

[noel]

PRoblem Solved i just used sealant and got a gasket for the thermostat.. so it's not leaking from that area anymore lol THANX for all ur help i learned alot on this thread

 

[antman]

Except that sealant is not needed.:biglaugh:

 

[MA70_Powa]

Question: I bought an 190*F thermostat for my car but the water (yes its only water at the mo coz its a fresh rebuild) boiled over so I replaced it with a 175*F one and now it's fine - the needle stays at ~3-4 marks below halfway and all is good.

I'm about to drain the water out and put some toyota red coolant in on the weekend - will my temps go down with that stuff? Because if they will I'll get the 190*F thermostat, but otherwise my temps seem fine according to the temp gauge...

 

[jdub]

It could be the 190 stat you used was bad...that's why I test a stat (even a new one) before I install it. A 175 stat is a bit low...I'd use a 185 or 190 stat. The addition of coolant is not going to drop temps, but will increase the boil point.

 

[MA70_Powa]

alright cheers, I'll chase up another one from toyota

 

[MA70_Powa]

ok noob question time - I got the toyota thermostat, but whats the jiggle valve look like?
I dont want to cut the wrong thing off!

 

[jdub]

Bottom pic:
http://www.cygnusx1.net/supra/Library/TSRM/MK3/manual.aspx?Section=CO&P=8

 

[MA70_Powa]

ah thanks - lol didnt even see that page in the tsrm :S
its been a long day...
cheers!