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Old 03-02-2008, 10:27 PM   #1
surfcitylocal
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DIY aftermarket radiator hoses and inline temp sender

I purchased a set of OBX high performance radiator hoses and installed them today. Here is a DIY on how to do it.

NOTE: PLEASE ASK QUESTIONS IF YOU HAVE ANY. I AM NOT RESPONSIBLE FOR DAMAGE TO YOUR CAR OR YOU!

Remove the radiator cap.


Place a tub to collect the used coolant. I added a small piece of tubing to the nipple to prevent spillage.


Open the drain valve located at the bottom of the radiator on the drivers side. Be careful if you open it too far it will come out and you'll have a mess on your hands.


Here are the hose clamps you'll need to remove.


Using a pair of pliers squeeze the two tabs together and move the clamp back.




After the clamp is removed you may need to use a screwdriver to loosen the hose from the tube.


The hose removed. Now do the same with the other clamp on the top of the radiator and the two far ends of the stock hoses connected to the engine block. The one above the transmission is tough to see but turned out to be the easiest bar far to remove. Have patience as these clamps are tough some times.

Slide the new hoses onto the radiator tubes and the engine block fittings exactly reversed of the removal. I chose to replace the Scion hose clamps with an easier model to use. Be sure to slide the new hose clamps onto the hose before attaching to the radiator and engine block fittings.




The next part is for those of you who want to use an inline sender unit for your aftermarket temperature gauge. If you are not using one scroll down to the end for final steps.

Measure the amount of hose you'll need to remove to fit the inline sender unit. Be sure to measure from the inside of the unit so you don't cut the hose too short.


Measure the other end and then make your cuts.




Place your hose clamps on the new hose before inserting the inline adapter.


Insert the front end.


Then that back end.


Tighten both hose clamps. Be sure to place the adapter far enough forward on the hose that your sender unit doesn't interfere with the hose to the right.


Your finished product. Now it's time to refill the system with new coolant.



A long funnel comes in handy if you want to avoid getting coolant all over your engine compartment. Fill the radiator to the top and then start your engine.


As the engine warms and the thermostat opens the coolant level will drop. Add more coolant to bring the level to just below the neck of the radiator. Replace the cap and check for leaks. If there are no leaks you are done.
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Old 03-02-2008, 10:32 PM   #2
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Re: DIY aftermarket radiator hoses and inline temp sender

Good stuff, Taz!!
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Old 03-03-2008, 02:06 AM   #3
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Re: DIY aftermarket radiator hoses and inline temp sender

nice work...........as usual
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Old 03-03-2008, 04:01 AM   #4
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Re: DIY aftermarket radiator hoses and inline temp sender

very nice DIY write up taz mang.
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Old 03-04-2008, 03:47 PM   #5
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Re: DIY aftermarket radiator hoses and inline temp sender

Yep, this is handy ish right here. Thanks again dude!
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Old 03-04-2008, 03:58 PM   #6
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Re: DIY aftermarket radiator hoses and inline temp sender

nice DIY taz the new hoses look good
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Old 04-12-2008, 11:48 PM   #7
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Re: DIY aftermarket radiator hoses and inline temp sender

i have been wondering how a inline temp sensor would look installed. thanx
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Old 04-13-2008, 01:03 AM   #8
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Re: DIY aftermarket radiator hoses and inline temp sender

You the man Taz!!!!!!!
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Old 04-13-2008, 04:25 PM   #9
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Re: DIY aftermarket radiator hoses and inline temp sender

Where did you get the fitting for the inline temp. sensor? I'd like to run a real temp gauge....

Thanks.
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Old 04-14-2008, 07:34 AM   #10
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Re: DIY aftermarket radiator hoses and inline temp sender

Quote:
Originally Posted by Shooter_XB View Post
Where did you get the fitting for the inline temp. sensor? I'd like to run a real temp gauge....

Thanks.
You can buy em off of ebay...
Search: temperature adapter

Some other stuff will come up, but the adapter in question will show up as well.


Or you can make your own! Here's the one I made for my Acura Integra.

-----------------

To the OP: Where did you mount your gauge?
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Old 04-14-2008, 09:03 AM   #11
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Important!

Be sure to follow the instructions on the anti-freeze container. If you do not use the pre-diluted anti-freeze, as Taz did, be aware that pure, undiluted, anti-freeze will cause your engine to over heat.

Also, I copied the below info from another website because it has some critical info.

"Water is a very key ingredient to this mixture. More precisely, the quality of the water is nearly as important as all other components. Usually, municipal water supplies are laden with minerals and as for well water, this water is the worst offender of all. Never use well water in your cooling system. Water heavy with mineral salts will cause engine scaling and reduce the ability of the engine to transfer heat and will ultimately contribute to premature failure. Scale can form on water pump seal surfaces causing the pump to fail. It is critical that all cooling system heat exchange surfaces remain clean. Hard water scale can block a cooling system’s ability to transfer heat resulting in overheating. Only 1/16 in of scale will reduce cooling system heat transfer efficiency by 40%."
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Old 04-14-2008, 10:34 AM   #12
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Re: DIY aftermarket radiator hoses and inline temp sender

^^^^^ Good info. Thanks!
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Old 04-14-2008, 01:20 PM   #13
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Re: DIY aftermarket radiator hoses and inline temp sender

Awesome DIY! I have been planning on doing this.

What is the majority rule on using non oem fluid? I have read posts about it being completely ok to switch to green, but read other that say only to use the Toyota pink or red.

Not trying to thread jack, just looking for some insight from others that will read this great thread.
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Old 04-23-2008, 08:33 PM   #14
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Re: DIY aftermarket radiator hoses and inline temp sender

Use the Toyota coolant! The red stuff has better cooling efficiency. Also since you didn't drain the block you mixed the red and the green stuff together. They are different chemicals and won't work as well together. Always use manufacturer recommended fluids or equivalents.
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Old 04-25-2008, 11:55 AM   #15
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Re: DIY aftermarket radiator hoses and inline temp sender

Quote:
Originally Posted by shooter_xb
Where did you get the fitting for the inline temp. sensor? I'd like to run a real temp gauge....

Thanks.
Weapon-R makes a killer one that works great!

Last edited by Eav10xB; 04-25-2008 at 11:59 AM..
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Old 04-25-2008, 12:56 PM   #16
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Re: DIY aftermarket radiator hoses and inline temp sender

nice write up taz. ya shoulda done a killer glass install at the same time though. hahha
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Old 05-04-2008, 05:54 PM   #17
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Re: DIY aftermarket radiator hoses and inline temp sender

awesome write up!!
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Old 05-05-2008, 07:15 PM   #18
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Re: DIY aftermarket radiator hoses and inline temp sender

Nice article!!!! Along with the above tip against well water, bottled, distilled water is THE best for mixing. Also, Redline's Water Wetter is an awesome additive. You should also take the time to re-check your coolant level for a day or so after the mod. Sometimes there can be some stubborn air pockets that take a bit to get out.
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Old 05-06-2008, 06:31 PM   #19
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Re: DIY aftermarket radiator hoses and inline temp sender

great DIY first off!!! and not to be ignorant but what is purpous of changing to high performance hoses? is it for power or just looks? again not trying to be ignorant, just inquizative.
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Old 05-09-2008, 01:31 PM   #20
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Re: DIY aftermarket radiator hoses and inline temp sender

very nice.. hoses look sik.
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