300Tdi with a leaky Freeze Plug...Errrrrr - Defender Source
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  #1  
Old June 23rd, 2009, 05:30 PM
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300Tdi with a leaky Freeze Plug...Errrrrr

I was smelling Antifreeze and when I inspected, I noticed the front Drivers side freeze plug is weeping. Has anyone changed one of these? What do I have to do? Do I need to remove the exhaust manifold? Any Tricks to get them out then install them???

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Old June 23rd, 2009, 05:37 PM
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Just use a little bit of radiator seal. I've even heard you can use black pepper to do in a pinch!
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Old June 23rd, 2009, 08:35 PM
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Quote:
Originally Posted by Dennis
Just use a little bit of radiator seal. I've even heard you can use black pepper to do in a pinch!

Is that stuff bad to use in a new motor?
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Old June 24th, 2009, 10:59 AM
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I used some stuff called "Barrs" (?? I think) It came in a small container ( size of a pill bottle), looked to be quite concentrated. I used it to stop a leak at a freeze plug too. It worked fine for me, I only used about 1/2 of the bottle. No increase in engine temp's.

If you decide to go with the freeze plug replacement, my local LR dealer was able to get the plug, I think its a standard size from an older 4 cyl LR engine.
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Old June 24th, 2009, 11:44 AM
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Dennis, you used it in the Tdi? I jsut saw the stuff at auto zone. they make one that is silver in color and one with copper. Do you remember which one you used?
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Old June 24th, 2009, 12:09 PM
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I call BS on the pepper thing. That probably stems from the fact that some radiator seal products come in a container that resembles the pepper container.

Radiator stop-leak products are a temporary fix. Used repeatedly they can clog cellular heater cores. The Bars Leaks brand says that it won't, but I don't believe it.

I have a leaky core plug on my 2.25 And am putting that repair off, just trying to keep it topped up as it is a very slow leak. But I keep a "redi-tite" expandable rubber plug behind the drivers seat for that day when it finally goes and I am out on the road somewhere.

My machine shop uses 3m weatherstrip adhesive on the edges of the new plugs before they drive them in.

Randy, I don't suspect there are any coolant passages in the Tdi small enough to be blocked by such a product but like I said, it can block the heater core. I view these products as "get ya home" or "until payday" type solutions


Quote:
Originally Posted by TDI Guy
Dennis, you used it in the Tdi? I jsut saw the stuff at auto zone. they make one that is silver in color and one with copper. Do you remember which one you used?
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Old June 24th, 2009, 12:11 PM
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IIRC you can just tap a chisel through it and pry it out, then drive a new one straight in with a small piece of wood and a hammer. Of course access is usually the issue.
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Old June 24th, 2009, 01:38 PM
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Pry it out and replace it. There is a special loctite sealant that you are supposed to use to reinstall them.
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Old June 24th, 2009, 08:16 PM
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I will have to get a new one.. It will just be a PITA to tap it in... Its in a shitty spot to get a good hit with a hammer. Not sure how hard you need to tap to get it in. I have scene the sealant for the plugs..
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Old June 24th, 2009, 08:56 PM
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Not hard to tap in, at least on a V8. Stick it in the freezer first to shrink it a little bit
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Old June 24th, 2009, 11:17 PM
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Quote:
Originally Posted by TDI Guy
Dennis, you used it in the Tdi? I jsut saw the stuff at auto zone. they make one that is silver in color and one with copper. Do you remember which one you used?
Yes, in my Tdi. I used the copper one. Worked great for me, and I've had no side effects (and its been over 2 years ago that I did it)

Dennis
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Old June 25th, 2009, 06:28 PM
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This may be a fine time to consider adding a block heater; one of the kind that goes in place of a freeze plug. If you have a diesel and don't already have one that is. Search Kim Hotstart for all kinds of engine heater products. No, I don't work for them.
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Old June 25th, 2009, 07:05 PM
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Randy let us know if you go with the block heater
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Old July 2nd, 2009, 12:22 PM
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Just got the freeze plug to repair it. Also borrowed a kick ass installer tool too. I will let you guys know. One person told me to install it dry but I can not see that working out without leaking..
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Old July 2nd, 2009, 10:02 PM
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That's what lead to my initial freeze plug leak....trying to install a block heater from RN The block hole size is 2-1/16". They swore it was a LR part...NOT !! But I did find one that fits perfectly and doesn't leak. I bought it from valu-bilt.com. It's for a Ford diesel Tractor 192"CID. Valu's part # is 2356467, cost is about $47. Consumes 450 Watts @120VAC. The frost plug is actually made by Katz.
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