MAZDA RX8 WATER IN OIL!!!! HELP

[jnreggleden]

Hi i woke up today and decided to do the usuall check on the rx8 when i got to the oil i noticed it was white and bubbly!! not a happy chappy the car is mainly used by my girlfriend to drive to work and back everyday which is a 10mile trip there and back so enough to get warm!! thing is i have lost no water what so ever, the oil pressure gauge has not budged a mm the oil light comes on for approx 1 min on anitional start up the goes away also when driving the engine coolent light comes on for a split second then goes out!!! it is only the dip stick that has the white bubbly annoying agravating stuff on it the filler cap is clean which make me think is it just condensastion???? if anyone can help me on this it would be much apprichated as i have no clue

[T_Pot]

first sign of head gasket failure i would say mate sorry

[Dogwatch]

If the coolant level it doesn't shift (and from what you say it may not) then the mayo isn't coolant water. A cylinder pressure check would confirm one way or another.
Excessive steaming from the exhaust when the engine is warm is another sign.
Maybe the g/f's 10 miles each way doesn't really get it hot enough to boil off engine condensation, especially in a lot of stop/start traffic.

[jnreggleden]

cheers for the replys no excessive steaming from the exhaust so far i am hoping it is just condensation have had this responce from a few engine rebuilders its looking up for me
anyone else feel free to respond gf is pulling her hair out

[marcusRX]

This mayo can be present in the dipstick tube on Rx8's that only run short journeys.Its caused by the fact that the short journey doesn't really get the engine hot enough to boil off mositure in the oil.

Mine has done this a couple of times through lack of use/short journeys but has never used a drop of coolant in 3 years!

Keep an eye on the coolant level to make sure it is not loosing any. Im not sure about your oil light - on my 231 it goes out instantly on start up and the coolant light has never come on while driving.

Have a look an here -lots of helpful people who can give advice!

http://www.rx8ownersclub.co.uk

If you are worried get it looked at.

Edited by marcusRX on Saturday 17th January 20:17

[stevieturbo]

OK...I'm really not familiar with these engines, so please correct me if I am wrong.


But a head gasket on a rotary ??? lol

[D_G]

wankels are a different animal to your normal piston engine. I've seen this on a few, your short journeys at low revs might just be the cause. I would recommend an oil change first and get the mechanic to assess the oil when it comes out. You can monitor it afterwards and make sure the car is driven properly at least once a week.
The engine has seals that can leak but you will normally get oil in the coolant too. And yes, there is no headgasket!!

Dave

[T_Pot]

stevieturbo said:

OK...I'm really not familiar with these engines, so please correct me if I am wrong.


But a head gasket on a rotary ??? lol

sorry for trying to help, i see your input was a lot more helpful
teach me for offering any suggestions, i should have been like you and said nothing until i could pick holes in someone for trying

[stevieturbo]

T_Pot said:

stevieturbo said:

OK...I'm really not familiar with these engines, so please correct me if I am wrong.


But a head gasket on a rotary ??? lol

sorry for trying to help, i see your input was a lot more helpful
teach me for offering any suggestions, i should have been like you and said nothing until i could pick holes in someone for trying

Well as I said, I wasnt sure. But at least after confirmation, it can put his mind at rest that it isnt the problem, as there isnt one.

[350Matt]

Change the oil and take it for a damn good thrashing to get it good and hot

Matt

[furio11]

hi i ave a rx8 and its very unwell, it has loads of oil in the water ,and water in the oil too,, when i tried block sealer and had the cap of the water bottle off, it bubled out loads and loads of sludge that looks like diareah, its oily water, also i have loads of this in the air intake and air filter box, it did start before, but now it took so much of this oily water in the intake it dosent now, im starting to try take out the engine ,, what do you guys think the problem will be ?

thanks furio

[hollowpockets]

I'm not expert in rx8 's but it clearly has major problems, a water/oil cooler may have leaks, ie a laminova type. Or there is some form of seal between oil and water cooling in the engine which would require a engine rebuild I assume, get an experienced person to check the cooler by pressure testing, if it doesn't have that type it must be an internal engine jobbie. Good luck

[furio11]

im pretty sure the oil cooler dosent have water,,, if the rotor seals went would that cause this as its not smoking out the exhaust?

[PhillipM]

One of the o-ring seals on the housing or oils seals on the end of the rotor has gone at a guess, complete rebuild job.

[Robb F]

I reckon he probably sorted the issue by now...

hard to tell who was joking about the head gasket though!