Radiator Drain - Defender Source
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  #1  
Old January 7th, 2012, 12:13 PM
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Thumbs up Radiator Drain

It was time to drain and refill my coolant so I added a radiator inline hose drain
http://www.jegs.com/i/JEGS+Performan...51155/10002/-1

to the lower radiator hose.

Install was easy, you need about 3" worth of straight hose, see pix.
Also this location is the lowest part of the hose which helps for draining coolant.

Cheers...
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  #2  
Old January 8th, 2012, 08:33 AM
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Nice mod...
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  #3  
Old January 11th, 2012, 12:43 PM
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Woops...I meant to put this in the Smaller Projects section...
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  #4  
Old January 11th, 2012, 12:57 PM
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looks good!! sounds like a good thing for me to do next!!
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  #5  
Old January 11th, 2012, 03:54 PM
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That's TOOOIGHT! On my TODO list.
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  #6  
Old January 11th, 2012, 05:29 PM
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Thumbs up

Yes, it's tight in there...
I had to remove the A/C belt to get the box cutter 90 degrees to the hose...measure 10x cut once...lol

Cheers...
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Old January 11th, 2012, 05:43 PM
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I meant tight as in awesome.
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  #8  
Old January 11th, 2012, 10:24 PM
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Were you able to reinstall the ac belt? Id drain more often but its always a huge mess thanks for sharing this.
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  #9  
Old January 12th, 2012, 08:37 AM
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Thumbs up

Re-installed the A/C belt...
Draining coolant is sooooo easy now...
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  #10  
Old January 12th, 2012, 03:00 PM
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Ordered two today thanks for sharing this, I know it will make my life so much easier

Man its clean under your hood. I am assuming you trimmed the stock hose back a little?
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  #11  
Old January 12th, 2012, 04:16 PM
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Quote:
Originally Posted by rover4x4 View Post
Ordered two today thanks for sharing this, I know it will make my life so much easier

Man its clean under your hood. I am assuming you trimmed the stock hose back a little?
Thanks, I try to keep my D clean...

I cut 1" out of the hose to accommodate for the drain.
The drain piece is 3" long, 1" goes into each hose and 1" is exposed as you see in the pix.

I pumped the coolant out before I cut the hose. Only about a cup worth came out of the hose...

Good luck with the install

Cheers...
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  #12  
Old January 12th, 2012, 04:53 PM
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Is the internal opening of the petcock threaded? It's hard to tell from the photos. If it is you could thread a hose barb in there and have a mess free way to drain the coolant.
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  #13  
Old January 12th, 2012, 08:16 PM
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Quote:
Originally Posted by psykokid View Post
Is the internal opening of the petcock threaded? It's hard to tell from the photos. If it is you could thread a hose barb in there and have a mess free way to drain the coolant.
No, it is not threaded, however, the coolant drains straight down into a funnel...mess free...
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  #14  
Old April 15th, 2012, 10:55 AM
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For those of you with steering guards, how do you drain without making a mess? Letting it splash all over the guard is not ideal. I'm thinking of making a wide mouth hose & funnel to route it into a container. Any other suggestions?
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Old April 15th, 2012, 05:18 PM
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Awesome. I just took a shower in coolant for the third time. Funnel doesn't work and coolant doesn't taste that great either.

Is this drain fitted on the bottom hose? Looks different than mine. Would it fit in the same spot for a 300tdi? I cant tell what location that is. Must be for a V8. For everyone with a 300tdi, is the only option for draining to make a big fat mess? Looking at what I have I would need a T-shaped drain valve.
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  #16  
Old April 15th, 2012, 10:30 PM
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Let it fly, just keep the dog out of the shop until you can wash the floor down. Having just gone through this what a PITA.
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  #17  
Old April 16th, 2012, 07:43 AM
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Um, well here's another option that requires SCIENCE!
Many of us who have the plastic or brass radiator plug can simply remove it, stick a (clear) siphon hose down to the bottom of the radiator. Create your siphon into a container and let physics take over. No this won't get every last drop of coolant out, but it make less mess.
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  #18  
Old April 16th, 2012, 09:07 AM
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I have a super siphon hose that I'll try next time. The problem with the 300tdi rad though is that you can't seem to get very far down into it. Has anyone tried the block drain on a 300tdi? Smaller hole = more control? Just curious how to access it.
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  #19  
Old April 16th, 2012, 12:30 PM
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Mine is a 3.9L V8. The drain can be installed on any motor/hose provided with enough room.

Cheers...
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  #20  
Old April 16th, 2012, 04:11 PM
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Whenever I have a radiator re-cored, I installed a petcock drain at a bottom corner.
Quote:
Originally Posted by o2batsea View Post
Um, well here's another option that requires SCIENCE!
Many of us who have the plastic or brass radiator plug can simply remove it, stick a (clear) siphon hose down to the bottom of the radiator. Create your siphon into a container and let physics take over. No this won't get every last drop of coolant out, but it make less mess.
That's what I do for those without a drain. I got a long piece of vinyl tubing a 'T' and a cork to fit.
I cut off two sections, fit the 'T', fit the other two pieces to the 'T' and use one of them to start the siphon and then stick the cork in that piece of tubing once the fluid starts to run.
Using this method also lets you only drain as much as needed, for instance, if you're changing a water pump no need to drain as much.
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