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So i have about 1000 oil leaks on the motor. Its crazy the amount of leak points rotarys have. Or maybe i just got a busted motor from a terrible shade tree mechanic. Any way, i have the common pan leak which i will fix using sealant soon. My low oil sensor gasket is also leaking and needs a new gasket. So 2 birds one stone there.
I have a leak at what i believe is the oil filter housing. Where it meets the block. Can this be done with the engine in and not changing the oil after? Just top it off. Either that or the pressure sensor is leaking. Is that possible? Is there an o ring/seal/"teflon plumpers pipe" tape im suppose to have on this sensor. Its dripping pretty bad from there and i cant see if its the housing or the sensor. Its crazy the amount of drip.
my other leak is at the turbos. I know there are oil drain gaskets. Are there oil line feed gaskets? They are the same i reckon. The whole front turbo housing is drenched in oil and drips down from what i believe is the feed line. Is there a gasket for the supply line from the motor that goes to the oil feed line? I cant see the source i just see when it water falls down onto that rod for the wastegate? Then runs along the rod drips on the exhaust and smokes off. At times there is ALOT of smoke while im sitting at a light. So i dont think its the leak i seen. Can the turbo housings leak? Im thinking with all my leaks and the terrble motor installation (not sure the person who installed it knew what he was doing at all) i should just pull the motor and start from scratch? I bought the car with a supposedly new crate motor from mazda and it runs great. The thing is just so leaky and i dont have a garage or I would pull the motor due to the terrible job of it getting put in ( sensors not plugged in, connectors missing, sensors plugged into wrong comnectors, cross threaded stuff, gaskets missing, tap water and i think mud in cooling system, the list goes on) Any one within an hour of san diego want to let me pull a motor at there house
Last edited by kulluminati777; 12-23-18 at 12:28 AM.
Most of the oil leaks go down to the oil pan area and make the impression it is the oil pan that leaks, so just double check.
Oil filter pedestal is a common leak spot - there are two rubber gaskets that can be replaced, it's a tight spot but doable (remove the intake elbow for more space).
Oil filter can leak too, if you buy a new filter it will come with a sealant on the threads (at least it was the case with mine).
Yep, there are 2 O-rings on the oil filter pedestal. It's easy to change, I would probably pull the throttle body elbow to have more room. 2 10mm nuts hold the pedestal on to the block and the oil cooler line screws into it.
The oil feed for the turbos has banjo bolts with crush washers and they most likely aren't leaking. The oil return gaskets can leak. Also possible the turbos are going bad and dripping oil as well.
I also had a leak from the oil pedestal/pressure sensor area. What I did was remove the throttle body elbow, start the car, let it idle, and look for leaks. Mine ended up coming from the connection to the pressure sensor (pic below, you can see where its all shiny from oil below the port)
As you mentioned, teflon tape did the job for me. Haven't leaked from around there since. Hope that helps.
Ok thanks for the info guys. I will order the oil filter pedestal/mount gaskets and while im down there teflon tape the pressure sensor. Hopefully this combo will correct the issue im having on the drivers side. I have an exhaust leak coming from the turbos (and he studs for the downpipe/cat are crossed threaded) so I think ill replace them period when go to take them off to repair that. I will have to buy turbos after the holidays or possibly around tax time
Just to add to the thread... I deleted my pressure sensor and plugged the hole with the proper plug. It's a really snug fit but it still leaked, Very lightly though. I removed the plug, lightly coated the threads with Toyota's fipg and it hasn't leaked since. It would seem this spot requires some sort of compound to not leak.
Any pipe thread connection needs Teflon tape or some sort of sealant or it will have a minor drip. Without the sealant the liquid can travel down the threads and out.
There is the Teflon tape, the paste, a number of options.
12-23-18, 12:18 AM
