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Old 01-13-2016, 01:51 PM   #1
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Ims guardian drain plug...

I recently installed the ims guardian and I torqued the drain plug to 19ft lbs as instructed and it leaks a little oil. I tightened it about an 1/8 turn further but it still leaks. Does anyone know what the max torque is on this drain plug before it can be damaged? And yes, crush ring is installed as well.

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Old 01-13-2016, 02:15 PM   #2
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I am having the same problem. I had a small oil leak with a LN engineering magnetic drain plug. I thought I may have over tightened it and cracked it. So I ordered a new one. Tightened to 19 FT LBS and this one leaks as well. I used a new aluminum crush ring. Maybe I should try a copper crush ring next time?
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Old 01-13-2016, 02:21 PM   #3
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My indie does not recommend this product based on their experience with leaks.
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Old 01-13-2016, 02:24 PM   #4
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I also had the problem with the LN magnetic plug but tightening that just a little more seems to make it stop. I wonder if a rubber washer similar to a garden hose would make more sense since the torque is so light?
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Old 01-13-2016, 02:37 PM   #5
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I'm on my 3rd drain plug. I over torqued the first one and damaged it internally; I carefully torqued the next two to the proper spec. The 2nd one leaked, and the 3rd one (currently installed) leaks.
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Old 01-13-2016, 03:47 PM   #6
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Oh wow I see a trend here. Maybe we should start a poll on how many have leaks.
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Old 01-13-2016, 04:57 PM   #7
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I'm on my 3rd drain plug. I over torqued the first one and damaged it internally; I carefully torqued the next two to the proper spec. The 2nd one leaked, and the 3rd one (currently installed) leaks.
When you over tightened the drain plug, you may have distorted the sump cover opening enough to cause the other leaks.
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Old 01-13-2016, 05:09 PM   #8
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Is there an alternative to the aluminum crush washer that is safe to use on these cars?
Better off with copper maybe? Also, I noticed the head on the mcd doesn't have a nice flat surface to sandwich the crush washer like the LN magnetic plug and the own plug have. Can a washer be added to this and then the crush washer?
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Old 01-13-2016, 05:37 PM   #9
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I have ln magnetic and it has never leaked after 4-5 oil changes, new aluminum gasket each time, 19 ft/lbs.
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Old 01-14-2016, 04:19 AM   #10
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In an instance where the plug has a seep after install, the worst thing that can be done is to tighten it further.

This will stretch the threads of the sump plate, and/ or the sensor, making the leak worse in most every case.

The proper method is to break torque on the unit, and re- torque it to 19# again.

Theirs lots of variability in the drain plug surfaces of stock sump plates. The stock drain plug is very soft (why the internal hex strips so easily) and able to conform to these deficiencies better, so the stock plug will mask some of those issues.

Another variable is the distance between the inner and outer portions of the sump plate drain recess. In some cases the outermost tips of the hex portion of the sensor will contact the innermost portion of the sump plate. If this happens at all, the tightening load will be shared between the two surfaces, and the sensor will leak. In that case the offending portion of the hex can be easily filed away.

If anyone has a persistent issue, and the unit is under warranty, we will machine your sump plate free of charge. If it's outside of warranty then it's a nominal fee and a fast service.

The same goes with sensors, if one of them leaks, and the unit is under warranty (1 year from purchase date, proof of purchase required) it will be replaced free of charge. We require a deposit to send a replacement plug out, which will be refunded once we receive the old plug back for evaluation.

Reports of leaks are not common, we receive one every couple of months. If anyone has any questions or issues, PM me here on the board and I'll connect you to someone that can help.

Over torque is the common cause of sensor issues, and the same held true for the LN Engineering magnetic drain plug. Installers that are not familiar with these products, or do not pay attention to instructions, and follow them, can create, or compound the issues.

As JFP mentions, distortions of the sump plate threads and sealing surface is the root of all evil with this. An over torque of the drain plug (even by another installer in the past with a stock drain plug) will stretch the sump plate threads and will require an insert in the threads for corrective action. We can do this for owners as well, if necessary.

The aluminum crush ring works in most all applications, but in some instances, where the sump plate has an issue, a copper crush ring found at a local parts store for a few cents will make a good band aid.

We have no problem assisting anyone who has an issue with this, and standing behind the product.

Last edited by Jake Raby; 01-14-2016 at 05:02 AM.
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Old 01-14-2016, 06:10 AM   #11
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If someone has a leaky LN drain plug, we'll replace it free of charge. A few even have broken after years of service and we've warrantied them no questions asked. If we aren't given a chance to take care of a problem or are even notified that one exists, we can't fix it.
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Old 01-14-2016, 09:12 AM   #12
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If someone has a leaky LN drain plug, we'll replace it free of charge. A few even have broken after years of service and we've warrantied them no questions asked. If we aren't given a chance to take care of a problem or are even notified that one exists, we can't fix it.
Well that's a great offer. I was going to contact you, but I bought the first drain plug through my Indy. So i didn't have a receipt for the part.
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Old 01-14-2016, 09:19 AM   #13
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Thank you! I'll try resetting it and see what happens. It didn't look like the head of the drain plug was hitting anything. It's close but not close enough. I'll redo it and take pictures afterwards
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Old 01-14-2016, 07:54 PM   #14
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Quote:
Originally Posted by cnavarro View Post
If someone has a leaky LN drain plug, we'll replace it free of charge. A few even have broken after years of service and we've warrantied them no questions asked. If we aren't given a chance to take care of a problem or are even notified that one exists, we can't fix it.
My LN Guardian plug is leaking slightly as well. Only since my last oil change. The first 2 changes after installing there were no leaks. The car is in winter storage right now.

Would using 2 aluminum washers be of benefit in this situation? If not, how can I go about getting a replacement plug?

Thanks
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Old 01-15-2016, 03:56 AM   #15
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My LN Guardian plug is leaking slightly as well. Only since my last oil change. The first 2 changes after installing there were no leaks. The car is in winter storage right now.

Would using 2 aluminum washers be of benefit in this situation? If not, how can I go about getting a replacement plug?

Thanks
It sounds like you should break torque, spin the crush washer 1/3 turn and retorque.
Double stacking crush washers sometimes helps to overcome sump
Plate deficiencies, or in the instances where the sensor contacts the inner diameter of the sump plate with the outer tip of its hex head.

A replacement sensor is available through my company.
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Old 01-15-2016, 07:13 AM   #16
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Quote:
Originally Posted by Jake Raby View Post
It sounds like you should break torque, spin the crush washer 1/3 turn and retorque.
Double stacking crush washers sometimes helps to overcome sump
Plate deficiencies, or in the instances where the sensor contacts the inner diameter of the sump plate with the outer tip of its hex head.

A replacement sensor is available through my company.
Thanks Jake. When I get the car ready in the spring I will try the 1/3 turn trick. In the mean time it has been hovering around -20 C (-4 F) up here for the past week so it will be a couple of months before I break the car out of the deep freeze. Which makes me think; could the sub zero temperature cause the plug to 'unseal' slightly and allow a small leak? Just wondering since i know aluminum can expand and contract.
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Old 01-15-2016, 09:01 AM   #17
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Thanks Jake. When I get the car ready in the spring I will try the 1/3 turn trick. In the mean time it has been hovering around -20 C (-4 F) up here for the past week so it will be a couple of months before I break the car out of the deep freeze. Which makes me think; could the sub zero temperature cause the plug to 'unseal' slightly and allow a small leak? Just wondering since i know aluminum can expand and contract.
Any temperature changes and cycles can do that, given the opportunity.
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Old 01-25-2016, 05:16 AM   #18
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Originally Posted by JFP in PA View Post
When you over tightened the drain plug, you may have distorted the sump cover opening enough to cause the other leaks.
At one point, I reinstalled a standard drain plug out of frustration, and it did not leak.
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Old 01-25-2016, 06:25 AM   #19
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At one point, I reinstalled a standard drain plug out of frustration, and it did not leak.
Because its very soft and will conform to mis- machined surfaces better than anything else you can find.
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Old 01-25-2016, 09:53 AM   #20
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You guys are throwing every excuse out there. Maybe just admit a defective product? Nah...
It's the customers fault, as always

A lot of us do our own oil changes with the stock plug and never have an issue. Seems like LN plugs leak if you don't get them tight enough, leak if you use correct torque and crack and leak if too tight.
That points to a bad product. You say it's not common, yet I've read more reports of leaking LN plugs over the years than I can keep track of.

Good on you for offering replacements, but quit blaming the customer and own up.

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