shooting coolant out of reservoir/defunct heater

spudz29212MKIII · 02-20-2009, 03:57 AM

Since were talking about radiators and coolant I have a question:

I have one of those pressure release radiator caps, and after a trip to class or home it kinda fizzes out where the release tab meets the metal cap (hard to describe) like someone has a straw blowing bubbles? I bought a new cap yesterday and it still does it. Any clues?

Thanks

tsupranami · 02-20-2009, 04:25 AM

I usually use a dremel with a cutting disk to cut a slot into the bolt end big enough for a flathead. You can also replace the entire thermostat housing if you can't get the broken bolt out, as it bolts to the block with three bolts (two studs/1 bolt.)

As for the heater hose, it's a Supra. Which means that normal auto parts stores don't carry most parts for it (including almost all the molded hoses except the upper and lower radiator hoses). I believe the heater hose will be Dealer or junkyard only. Maybe someone is making them now, but for the past ten years, whenever I go to Schucks, NAPA, or the like, they have almost nothing available that is Supra specific, in stock or special order. That's why my dealer gives me wholesale pricing, since I order parts for mine and several friends Supras on a regular basis.

It's just part of life with such a limited production car. Toyota didn't sell many Supras (relative to their other models) so most parts stores do not stock any Supra-specific parts, and if available at all, they usually have to order them.

Spudz - Supras weren't designed to use valved pressure relief caps (the one's with the little levers to relieve pressure). Get an OEM one from the Dealer, assuming the radiator is stock or OEM replacement. Fluidyne radiators work best with Fluidyne rad caps, etc.. If that doesn't work, there are probably other problems with your cooling system.

spudz29212MKIII · 02-20-2009, 04:39 AM

Oh I see. I did not know that, the car came with one when I bought it. Appreciate the help.

Bill UK · 02-20-2009, 11:06 PM

Quote:

Originally Posted by spudz29212MKIII

Since were talking about radiators and coolant I have a question:
I have one of those pressure release radiator caps, and after a trip to class or home it kinda fizzes out where the release tab meets the metal cap (hard to describe) like someone has a straw blowing bubbles? I bought a new cap yesterday and it still does it. Any clues? Thanks

There are many different rad caps for the Supra, even more if you include the non-Toyota stock rads. Some caps are very similar in overall size but vary in depth. I made a few drawings of the two different types I have owned with the Toyota part #`s. Ignore the words Halfords and Nissens they only apply to the UK. Just look at the dimensions and the Toyota part #`s. You may have the wrong rad cap ?

sd88supra · 02-27-2009, 12:50 AM

Ok, so I finally got that heater hose I needed. But now I don't know where the bottom hose in the picture goes into. The one on the top obviously goes into the firewall, but I cant see where the one below it goes into, and it doesn't show in the diagram I got from the dealer. I think its just to bypass (because I don't ever remember it going anywhere on the top), but I just want to make sure.

Bill UK · 02-27-2009, 06:43 PM

Does this help ? This is a left-hand drive Supra as in the US.

Bill UK · 02-27-2009, 08:22 PM

Quote:

Originally Posted by sd88supra

I can't get the html to work (how do you post pics?), so here's the link.

sd88supra · 02-28-2009, 02:39 AM

The upper hose thats plugged with a spark plug is the heater hose on the left side of the diagram (into the firewall). The lower hose (also plugged) is what I don't know about. It's some sort of bypass hose, but where does that plugged end go to?

btwilson86 · 02-28-2009, 04:40 AM

If you're talking about that little red piece (lowest red part on the left side of the diagram) it is a cap, and goes nowhere. On right hand drive cars, the plug moves to the other side of that rail.

Bill UK · 02-28-2009, 11:13 AM

This is the Right-Hand Drive Supra (UK) Steering wheel on the right.

02-20-2009, 03:57 AM	#1
spudz29212MKIII 3" Exhaust Join Date: Mar 2008 Location: Columbia, SC Posts: 69	Since were talking about radiators and coolant I have a question: I have one of those pressure release radiator caps, and after a trip to class or home it kinda fizzes out where the release tab meets the metal cap (hard to describe) like someone has a straw blowing bubbles? I bought a new cap yesterday and it still does it. Any clues? Thanks __________________ Zach

02-20-2009, 04:25 AM	#2
tsupranami Intake Join Date: Jun 2008 Location: Washington Posts: 32	I usually use a dremel with a cutting disk to cut a slot into the bolt end big enough for a flathead. You can also replace the entire thermostat housing if you can't get the broken bolt out, as it bolts to the block with three bolts (two studs/1 bolt.) As for the heater hose, it's a Supra. Which means that normal auto parts stores don't carry most parts for it (including almost all the molded hoses except the upper and lower radiator hoses). I believe the heater hose will be Dealer or junkyard only. Maybe someone is making them now, but for the past ten years, whenever I go to Schucks, NAPA, or the like, they have almost nothing available that is Supra specific, in stock or special order. That's why my dealer gives me wholesale pricing, since I order parts for mine and several friends Supras on a regular basis. It's just part of life with such a limited production car. Toyota didn't sell many Supras (relative to their other models) so most parts stores do not stock any Supra-specific parts, and if available at all, they usually have to order them. Spudz - Supras weren't designed to use valved pressure relief caps (the one's with the little levers to relieve pressure). Get an OEM one from the Dealer, assuming the radiator is stock or OEM replacement. Fluidyne radiators work best with Fluidyne rad caps, etc.. If that doesn't work, there are probably other problems with your cooling system. __________________ 89 Turbo Targa 5spd, 18x10 w/275/35/18, 18x9 w/245/40/18, Brembo CD rotors, Hawk pads, SS lines, HKS coilovers, ST sways, 1 pc. AL DS, V3 shifter, RPSmax PP w/HPF ferramic disk, custom crank, Eagle Rods, JE pistons, Ferrea valves, BC 264 cams, Fidanza cam gears, Walbro FP, AFPR, RC660 inj., Blitz SUS, Lexus AFM, SP 47trim CT26, HKS SSQ BOV, 2.5" AL IC pipes/FMIC, Lipp turbo elbow, RT DP, Greddy SP catback, HKS FCD, AEM Uego WB, Apex'i SAFC, Apex'i AVCR, EGT, Fluidyne AL rad, Flexalite fans.

02-20-2009, 04:39 AM	#3
spudz29212MKIII 3" Exhaust Join Date: Mar 2008 Location: Columbia, SC Posts: 69	Oh I see. I did not know that, the car came with one when I bought it. Appreciate the help. __________________ Zach

02-27-2009, 12:50 AM	#5
sd88supra 3" Exhaust Join Date: Oct 2005 Location: San Diego, Ca Posts: 190	where does this hose go? Ok, so I finally got that heater hose I needed. But now I don't know where the bottom hose in the picture goes into. The one on the top obviously goes into the firewall, but I cant see where the one below it goes into, and it doesn't show in the diagram I got from the dealer. I think its just to bypass (because I don't ever remember it going anywhere on the top), but I just want to make sure. __________________ -1987 5 spd N/A with TEMS: low miles! All stock with the exception of electric fans and an '89 front bumper, Yokohama 225/50/16 with stock rims. It's a mess and in the garage. -1987 5 spd Turbo with TEMS: miss-matched tires, needs lots of work, but it runs! Project car. -1988 N/A auto targa: all stock except 18" rims with Falken 265/35/18 in rear and 225/35/18 in front; daily driver. Last edited by sd88supra; 02-28-2009 at 02:24 AM. Reason: picture

02-28-2009, 02:39 AM	#8
sd88supra 3" Exhaust Join Date: Oct 2005 Location: San Diego, Ca Posts: 190	The upper hose thats plugged with a spark plug is the heater hose on the left side of the diagram (into the firewall). The lower hose (also plugged) is what I don't know about. It's some sort of bypass hose, but where does that plugged end go to? __________________ -1987 5 spd N/A with TEMS: low miles! All stock with the exception of electric fans and an '89 front bumper, Yokohama 225/50/16 with stock rims. It's a mess and in the garage. -1987 5 spd Turbo with TEMS: miss-matched tires, needs lots of work, but it runs! Project car. -1988 N/A auto targa: all stock except 18" rims with Falken 265/35/18 in rear and 225/35/18 in front; daily driver.

02-27-2009, 06:43 PM	#6
Bill UK AEM EMS Join Date: Jul 2006 Location: UK Posts: 891	Does this help ? This is a left-hand drive Supra as in the US.

02-28-2009, 04:40 AM	#9
btwilson86 Super Moderator Join Date: May 2007 Location: Billings, Montana Posts: 1,034	If you're talking about that little red piece (lowest red part on the left side of the diagram) it is a cap, and goes nowhere. On right hand drive cars, the plug moves to the other side of that rail. __________________ 1989 7MGTE R154 Targa Top White Package w/Blue Interior Driftmotion 57trim CT26, Upgraded Intercooler, 2.25" Hard Pipes, 3" Turbo Back Exhaust with Test Pipe, HKS VPC w/GM 3 bar MAP sensor, APEXi S-AFC, Walbro 255lph fuel pump, ProSport EVO Series Boost / Fuel Pressure / AFR gauges, Lotek a Pillar Gauge Pod, HKS Type 0 Turbo Timer, Eibach Lowering Springs, Tokico Illumina II TEMS struts, custom powder coated Motegi Racing TrakLite wheels

02-28-2009, 11:13 AM	#10
Bill UK AEM EMS Join Date: Jul 2006 Location: UK Posts: 891	This is the Right-Hand Drive Supra (UK) Steering wheel on the right.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Heater Union (Coolant Leak)	slader99	MKIII Supra	11	12-28-2009 12:29 AM
Funky engine coolant issue	shirkinator	Non-Generation Specific Questions	1	06-22-2009 08:37 AM
Heater Core Outlet Hose - need help	xTomKx	MKIII Supra	6	11-21-2007 04:59 PM
Coolant leak issues	D_Train	MKIII Supra	1	03-15-2007 04:30 AM
Heater By-Passing...Your Thoughts	mrnickleye	Non-Generation Specific Questions	2	05-03-2006 03:06 PM