Oil cooler leak

Oil leaking from oil cooler. One of the components that are part of the oil cooling system is the oil cooler adapter. The adapter connects oil lines to the cooler itself and another adapter sends cooled oil back into the oil pan. Within the adapter is a gasket or rubber o-ring.

If the oil cooler adapter fails externally, engine oil may be. The leak is identified primarily by a pool of oil forming in the V at the base of the cooler housing, and motor oil running down off the top of the transmission bellhousing and around the. As we stated above, engine oil cooler leak s are a common issue with certain Mercedes BlueTEC diesel cars.

Specifically, the Mercedes “3.

Vdiesel” engines, designated with the engine code “OM642”, are the afflicted units. Full-Seal” on the first application. This leak often occurs after an oil change because the oil filter is attached to the cooler and removing and installing the oil filter can alter the oil cooler o-ring sealing capabilities. The oil cooler is usually placed near the radiator to maximize cooling airflow.

To maintain the lubricative properties of oil , the oil cooler by cooling the oil (having it flow through it galleries) to the proper temperature range. Check for leaks around the ends where the oil cooler attaches to the engine or at the o-rings in the center of the cooler. Oil cooler Reinstalled with new purple seal, Torque Spec on the oil cooler to engine Ttorx bolts,nm, there are bolts total. Intake manifold gasket, made of aluminum or metal, very fimsly and can be bent easily so be careful, notice theres hooks they make sure that the gasket stay on the intake manifol very handy in my situation.

I have an oil cooler on my truck and I learned the hard way that they can be sensitive to rocks. I took my truck out on the trail and a rock ran up underneath the front end. The rock kinked one of the return lines and created a leak. The leak appears on both fittings coming out of the oil cooler attached to the bottom of the radiator. Noticed a small oil spot under the car and after pulling the pan i traced it to the oil cooler under the filter housing.

No leak for the first few drives. Some engines are designed with an engine oil cooler or adapter that can leak due to seals going bad which stop oil from leaking between the block and the O ring seal. This seal or gasket will go bad due to heat and engine vibration which can cause an oil leak. I noticed my car leaking oil by the right wheel area.

The dealership told me this problem was my oil cooler at a price of $271. If your leak is oil or water from between the adapter and cooler , then just get the $oil o-ring or $coolant one and reassemble, and hope you didn’t cause another leak. If you have oil or coolant coming out the weep hole or coolant from around the oil filter keep going.

The red circle indicates the location of the oil filter. Arrow B is the lower connection. Noticed oil on the ground in the garage, also smelled a strong oil smell the last day or so before I saw the oil on the ground. He told me he noticed an oil leak and that he was confident that it was from the oil cooler seal. He also stated that this was a problem with these.

The hose pipes into the oil cooler went in fairly easily with no alteration but leak. I suspect there may be a fracture in the oil cooler inlet nipple. Looking for the best way to seal 1. An oil leak from one of the main bearing cap side bolts may appear to be coming from the oil cooler. Use care to remove only the five bolts that hold the oil cooler to the engine block.

The Infamous Alternator Bracket Oil Leak on the EBMW 7-Series. Manufactured in the USA using controlled atmosphere brazing, the epoxy-free core is built using our most durable heat exchanger design that is capable of withstanding tremendous heat and pressure. Re: GM truck trans and oil cooler lines leak I thought that is why most manufactures use the self tighting spring clamps. Many of the gm cooler lines leak by the crimps but I was told it is because of the repeated flex and vibration. Repairing a Leaky Oil Cooler.

Wife had oil changed a few weeks back and area has been leaking every since. The plastic pipe, o-rings, and oil seal degrade over time and begin to leak. A journey into the the infamous Om6oil cooler leak ! L vTurbodiesel, OCI 10k miles using mobil ESP 5wbeginning ownership at 104k miles years ago, now its at 127k miles with the most recent service fuel filter and oil and oil filter change at 126k miles.

Also when a cooler fails it can leak oil into the coolant or coolant into the oil.

When you start your car pressure begins to build up inside the cooling system, engine and automatic transmission. Engine oil , coolant and automatic transmission fluid are contained and cooled within the radiator and engine oil coolers. So the small oil cooler that is above the oil filter started to leak about 30miles ago. Find great deals on eBay for 7. I do 10mile oil changes so i waited till 20to change the o ring on the top of it.

The source of the leak was the oil cooler thermostat gasket.

The seal has been leaking for a long time but finally blow out the other day. I think the cool weather here in Arlington caused the gasket to finally give out. If those are coolant pipes on the side of it, you could join them together so that they bypass the cooler.

If the leak stops you know that the cooler was causing the problem. You may also find that oil comes out of the coolant fittings which will also indicate the fault is with the cooler. Take off the oil cooler (drain oil , remove oil filter, drain coolant, and disconnect coolant hose that connects to the cooler , then use allen wrench to take off the shaft that goes through the cooler.

2.) Take a peice of romex ( household wire) and remove a short peice of copper wire, about one inch long. I have developed and external oil leak at the engine oil cooler. Ive noticed my oil cooler has alot of oil buildup around it and has begun leaking on my driveway.

All I can see from looking underneath the car is a big nut in the middle of the cooler and oil lines.