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Jake Raby · 01-14-2016, 04:19 AM

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.

01-14-2016, 04:19 AM	#10
Jake Raby Engine Surgeon Join Date: Aug 2008 Location: Cleveland GA USA Posts: 2,425	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.