Where are the oil leaks in a Subaru?
The common Subaru oil leak problem areas are: 1 Rear of engine, PCV baffle plate 2 Front of engine, crank seal and piston access plugs 3 Valve cover/spark plug tube seals
When to replace the oil seals on a Subaru?
The later brown colored seals are more resilient. The smart time to replace the front cam seals is when the timing belt it is changed, since much of the labor involved in replacing these oil seals involves the R&R (removal&reinstallation) of the timing belt. On the SOHC (single overhead cam) engines, there are two if these front camshaft oil seals.
What to do if you have an oil leak in your front engine?
Replace the front crankshaft oil seal and the oil pump o-ring. While you are in there install a new water pump and thermostat along with a new timing belt. The camshaft seals on the 2.5 are optional to replace. The oil pump is the common oil leak.
What causes a head gasket to leak on a Subaru?
You may notice oil leaks between the head and the block of the engine. Many Subaru cooling systems route their heater core in such a way that the heater will blow cold air when you have air in the heater core. Assuming the cooling system was bled correctly, air in the heater core is almost always caused by a head gasket leak.
What is the recommended oil for a Subaru Legacy?
The correct oil type to use for the Subaru legacy Outback 2.5 is 10w-40 as you have mentioned. A 10w-30 grade oil can be used as an alternative.
When is an oil leak serious?
An oil leak that is left alone can cause seals or rubber hoses to wear prematurely. Furthermore, oil leaks are a fire hazard and can cause your vehicle to fail without warning. If the oil catches fire or the engine fails while you are driving, there is potential for injury to yourself and others.
What causes engine oil to leak?
Engine oil leaks usually are caused by engine gaskets and oil seals that have deteriorated causing oil to leak from the engine.
Will blown head gasket cause oil leak?
A blown head gasket can cause engine misfires, oil leaks and coolant to mix with the engine oil. To fix a blown head gasket, you have the choice of changing the head gasket completely or using a head gasket sealer.
The common Subaru oil leak problem areas are: 1 Rear of engine, PCV baffle plate 2 Front of engine, crank seal and piston access plugs 3 Valve cover/spark plug tube seals
What kind of gaskets do you need for a Subaru?
Subaru’s are very prone to leak there. You need to buy the gaskets from Subaru, they are the only gaskets that will actually hold up. Valve cover gaskets (2) 13294AA053 or possibly 13294AA070 and spark plug tube seals (4) 10966AA030, if your using gen1 valve cover gaskets (the ones ending in 053) then you will also need 10 bolt grommets 13271AA071.
What should I do if my Subaru baffle plate is leaking?
The driver’s side is harder to get to so check the passenger side first. If you find those leaking you’ll be replacing them as a set, so no need to check the other side. The baffle plate or PCV baffle plate is common to leak and on the older engines they have used a plastic cover.
What are the valve cover grommets for a Subaru?
Valve cover gaskets (2) 13294AA053 or possibly 13294AA070 and spark plug tube seals (4) 10966AA030, if your using gen1 valve cover gaskets (the ones ending in 053) then you will also need 10 bolt grommets 13271AA071. If you do not have a local Subaru dealer try using these part numbers on eBay or they have websites that sell OES Subaru parts.
Where is the oil cap on a Subaru EJ22T?
Also, EJ22 engines have a cam cap at the RH (right-hand) side rear of the engine. This cap also has an o-ring that can leak oil. (On SUBARU EJ22T (turbocharged) engines, the turbo oil return goes into this area).
What makes a Subaru 2.5 SOHC engine leak?
Also need to point out that the spark plug tube seals are only a problem on the 2.5 SOHC and the 2.2L SOHC second generation engines. Subaru 2.5L SOHC valve cover spark plug tube seals are very common to leak.
The later brown colored seals are more resilient. The smart time to replace the front cam seals is when the timing belt it is changed, since much of the labor involved in replacing these oil seals involves the R&R (removal&reinstallation) of the timing belt. On the SOHC (single overhead cam) engines, there are two if these front camshaft oil seals.
What causes a Subaru spark plug to leak?
Subaru 2.5L SOHC valve cover spark plug tube seals are very common to leak. They will cause problems and you won’t even be aware of the leak. The reason for this is because they leak into the spark plug tube and take a long time before the oil works it’s way out to an external leak that you will notice.
What causes the baffle plate on a Subaru to leak?
The baffle plate or PCV baffle plate is common to leak and on the older engines they have used a plastic cover. This is a common problem area so Subaru has updated the plate to steel with Allen head bolts instead of Phillips screws. Only use the updated part if your plate is plastic.