Subaru thermostat?

crazyfiggi Wolfsburg Wizard

657 posts · joined Jun 2003 · 18 Jun 2007, 4:43 pm

#597699

Hi everyone, as some of you know im in the process of fitting a ej22 into my 85 caravelle which is going well and hopefully the motor will be bolted in next weekend.
I was told by a mechanic to remove the little valve thing from my thermostat and enlarge the hole a bit. Ive herd about this before but im unsure if i need to do it for mine, and if i do im unsure exactly how much i should enlarge the hole by? Any advice would be great,
Thanks,
Alex.

VWCOOL 23 Windows of Awesome

5,158 posts · joined Jun 2003 · 18 Jun 2007, 6:19 pm

#597721

Is your mechanic a Subaru powertrain engineer? Might be an idea to leave it as Subaru intended for now...

Pay your debts, CxxT

seagull Compulsive Aussie Vee Dubber

4,979 posts · joined Dec 2003 · 19 Jun 2007, 1:54 am

#597831

Tell him to stop loking down the eye of his dick & tell him its a Subaru & not a ford XF

Looking for that special lady : PM me for coffee & cake

72RSbug Officially Full-On Dubber

266 posts · joined Jan 2005 · 19 Jun 2007, 2:26 am

#597832

because the engine and radiator are much further apart then in a subaru I drilled 3 2mm holes in the thermostat to decrease the drop in temperature once the radiator is used and it seems to work pretty good

pete wood 23 Windows of Awesome

6,828 posts · joined Jan 2004 · 19 Jun 2007, 12:57 pm

#597874

big big discussion on that here...

http://forums.aussieveedubbers.com/viewtopic.php?tid=61265

"stoopid is stronger than axles"
http://drivingnotpolishing.blogspot.com.au/

VWCOOL 23 Windows of Awesome

5,158 posts · joined Jun 2003 · 19 Jun 2007, 3:09 pm

#597900

lol... I was hoping you'd chime in, Pete!

Pay your debts, CxxT

pete wood 23 Windows of Awesome

6,828 posts · joined Jan 2004 · 20 Jun 2007, 4:00 pm

#598096

just so you know. I know have the stocker 85deg one in place. NO extra holes. Flipper valve still in place. Keeps the engine nicely warm without getting hot from what I can see. And subaru designed that way...😉

"stoopid is stronger than axles"
http://drivingnotpolishing.blogspot.com.au/

subaruboxer Officially Full-On Dubber

292 posts · joined Jan 2005 · 21 Jun 2007, 4:49 am

#598191

I gave it a try with a 3 mm hole. And I would not do it!
The only thing it did, was that it took three times as long to get the engine up to it´s operating temps. I use a stock thermostat without a hole.

crazyfiggi Wolfsburg Wizard

657 posts · joined Jun 2003 · 21 Jun 2007, 6:52 pm

#598266

Thanks for the advice everyone, gona leave it standard for now with no hole and see how it goes. If i want to try a hole its not hard to pull the thermostat out and put one in.

GTMac Fahrvergnugen

976 posts · joined Nov 2004 · 21 Jun 2007, 8:01 pm

#598284

I have not run a thermostat for about 1 1/2 years.......whoops!:duh

Thought I had one until I checked the other day.

1971 Type 3 Fasty - EJ20T

I love 242HP sleepers. 🤪

How many sets of lights does it take a $229k Carrera S to learn? 😂 UPDATE: Cayman S, M3, B4 now added to the list.

pete wood 23 Windows of Awesome

6,828 posts · joined Jan 2004 · 22 Jun 2007, 9:46 am

#598348

🙄

I hope you have super thin oil.

"stoopid is stronger than axles"
http://drivingnotpolishing.blogspot.com.au/

GTMac Fahrvergnugen

976 posts · joined Nov 2004 · 22 Jun 2007, 10:56 am

#598359

Pete,

Going to Suby today with your part no. for a thermostat 🙂

pete wood wrote:🙄

I hope you have super thin oil.

1971 Type 3 Fasty - EJ20T

I love 242HP sleepers. 🤪

How many sets of lights does it take a $229k Carrera S to learn? 😂 UPDATE: Cayman S, M3, B4 now added to the list.

pete wood 23 Windows of Awesome

6,828 posts · joined Jan 2004 · 22 Jun 2007, 12:16 pm

#598367

Good man,

I hope enjoy bleeding the cooling system up. 🙄

"stoopid is stronger than axles"
http://drivingnotpolishing.blogspot.com.au/

ElusiveStranger Officially Full-On Dubber

330 posts · joined May 2006 · 23 Jun 2007, 2:37 am

#598484

Dunno what happened to my post yesterday.

Use the thermostat as is

Use a flow through header tank. Mine's just connected between the H2O manifold and the matrix lines - works a charm on the bleeding. I had a single feed from the bottom of the tank before and it gave me slight problems
(forgot to look at where you are, mine's from a UK Vauxhall Fronteria)

In Helbus' thread he's used flow through (custom made) between the main water outlet and rad

HTH

GeorgeL Officially Full-On Dubber

231 posts · joined Feb 2006 · 12 Jul 2007, 10:47 am

#601568

Just make sure that your bypass hose is connected correctly from the outlet manifold to the nipple on the thermostat housing. That provides the signal to open the thermostat. A hole in the thermostat will actually delay warmup by forcing the engine to warm up all of the coolant rather than just the coolant in the engine.

If you're running a big heater like the Canadian Vanagon folks there is a bypass mod to keep the engine cool while the heater is running.

ElusiveStranger Officially Full-On Dubber

330 posts · joined May 2006 · 14 Jul 2007, 1:51 am

#601860

GeorgeL wrote:Just make sure that your bypass hose is connected correctly from the outlet manifold to the nipple on the thermostat housing. That provides the signal to open the thermostat. A hole in the thermostat will actually delay warmup by forcing the engine to warm up all of the coolant rather than just the coolant in the engine.

If you're running a big heater like the Canadian Vanagon folks there is a bypass mod to keep the engine cool while the heater is running.

Bypass:
We're not that cold here (UK) 😉 & I'm not running a clorifier (SP? - water heaters) either.
Tom developed it for more extreme cold & I've heard some Aussies have bought it as they run clorifiers.
I've actually installed a 'H' type bypass between the matrix and engine with an isolator fitted in the "-" part. All's well, including during our winter months.