Pool of oil in air intake advise please :-)
Discussion
Hi prevention is better than cure in this case so thought I better get on to it ASAP. The other day when changing my air filter I noticed there was excess oil sitting in the bottom of the air intake unit that holds the filter in place. I am sure its not from what I put there to lube the rubber surround seal previously. Do you think it could be spitting back oil from my turbo? Seems alot, I couldn't quite get my hand down the air pipe to feel for anything unusual. My Turbo seems to boost ok and nothing out of the ordinary. Sooner rather than later would like to upgrade my turbo anyway.
Edited to add, I got oil changed to a thicker viscosity as the oil I was running was too thin and causing a few odd puffs of smoke, could be the culprit?
>>> Edited by kylie on Friday 6th February 20:06
Edited to add, I got oil changed to a thicker viscosity as the oil I was running was too thin and causing a few odd puffs of smoke, could be the culprit?
>>> Edited by kylie on Friday 6th February 20:06
Pretty common on turbocharged cars. I have some on mine too. I am going to make a "catch can" for it. This is a can that the hose goes into before the air filter, then a hose from the can to the air filter. The oil mist gets trapped in the can. Bottom of the can has a drain. Turbo MR2 people use them all the time. I just need to figure out where to put the thing. Now, if I could run a line from the bottom to a windshield washer pump to a nozzle out the back, button on the dash for "Oil Slick," tail gaters (state sport here) would get a nice surprise...
Dr.Hess
'89 ET
Dr.Hess
'89 ET
Sounds like the crank-breather Kylie. As Dr. Hess mentioned, you can get an oil-catch can if it bothers you. The mist that comes out of the breather is said to aid detonation on cars that push higher boost levles but I don't know about that and I don't worry about it too much.
I would doubt if it is your turbo all the way back there in the air filter.
Hope that helps,
Mark - 88 Turbo
I would doubt if it is your turbo all the way back there in the air filter.
Hope that helps,
Mark - 88 Turbo
Thanks so much guys. I feel much better now 
If that much oil is misting up in the filter, goes to show how often you need to change the filter then. I had only done the previous filter 3 months ago and its pretty gunged up.
So when it comes to cleaning the K&N filter what do you guys use. A light detergent to wash through the oil?
If that much oil is misting up in the filter, goes to show how often you need to change the filter then. I had only done the previous filter 3 months ago and its pretty gunged up. So when it comes to cleaning the K&N filter what do you guys use. A light detergent to wash through the oil?
dr.hess said:Dr.Hess could you post some details on how you did it when your completed the project? I might ask Simon to help fabricate something and put it in the things to do list.
Pretty common on turbocharged cars. I have some on mine too. I am going to make a "catch can" for it. This is a can that the hose goes into before the air filter, then a hose from the can to the air filter. The oil mist gets trapped in the can. Bottom of the can has a drain. Turbo MR2 people use them all the time. I just need to figure out where to put the thing. Now, if I could run a line from the bottom to a windshield washer pump to a nozzle out the back, button on the dash for "Oil Slick," tail gaters (state sport here) would get a nice surprise...
Dr.Hess
'89 ET
Cheers
KS
kylie said:
Pretty common on turbocharged cars. I have some on mine too. I am going to make a "catch can" for it. This is a can that the hose goes into before the air filter, then a hose from the can to the air filter. The oil mist gets trapped in the can. Bottom of the can has a drain. Turbo MR2 people use them all the time. I just need to figure out where to put the thing. Now, if I could run a line from the bottom to a windshield washer pump to a nozzle out the back, button on the dash for "Oil Slick," tail gaters (state sport here) would get a nice surprise...
Dr.Hess
'89 ET
Dr.Hess could you post some details on how you did it when your completed the project? I might ask Simon to help fabricate something and put it in the things to do list.
Cheers
KS
Kylie,
BigTime Overkill... there isn't/shouldn't be that much oil drawn into the airbox by the separator. If there is, it is most likely due to overfilling the oil (9XX engines HATE that - stay right at the dipstick mark), or wasn't wiped clean the last time the filter was changed, or there is the slight possibility your turbo seals are going. Remember, the separator is part of the evaporative system where crankcase fumes are recycled into the intake for combustion.
In any event, a catch can will add complexity and weight (contrary to Colin's Mantra), and may deprive you of one of the diagnostic symptoms available to you.
As you wish, but personally, I wouldn't do it. Happy Motoring!... Jim'85TE
Hey Kylie:
It is on my to-do list, but I am afraid it is designated "one of these days" on the priority. I just need to finish building my Seven before I start on too many other projects.
Like I said, they are very popular in MR2 Turbo circles. Bascially, you just run a tube into a container and a tube out. I see an elbow in and pointing down, and an output that goes out the top then makes a 90 to the air filter, with a radiator style drain valve at the bottom. Maybe a baffle or two inside. There are some drawings out on the net if you want to research it further. Look for Turbo Catch Can. I have some 2.5" thinwall stainless tubing that I think would work well.
Dr.Hess
It is on my to-do list, but I am afraid it is designated "one of these days" on the priority. I just need to finish building my Seven before I start on too many other projects.
Like I said, they are very popular in MR2 Turbo circles. Bascially, you just run a tube into a container and a tube out. I see an elbow in and pointing down, and an output that goes out the top then makes a 90 to the air filter, with a radiator style drain valve at the bottom. Maybe a baffle or two inside. There are some drawings out on the net if you want to research it further. Look for Turbo Catch Can. I have some 2.5" thinwall stainless tubing that I think would work well.
Dr.Hess
Hey Kylie,
A "quik" turbo check is really easy... with the air intake pipe removed, put your fingers in the intake side of the turbo and feel for any "wobble". There are "ways" to contort so that you can see the compressor fan, but you should be able to feel any "wobble" by grasping the center nut and (not to hard) shaking it up and down. If your turbo needs work, the fan will wobble about the shaft...
Drive topless!
Cameron
A "quik" turbo check is really easy... with the air intake pipe removed, put your fingers in the intake side of the turbo and feel for any "wobble". There are "ways" to contort so that you can see the compressor fan, but you should be able to feel any "wobble" by grasping the center nut and (not to hard) shaking it up and down. If your turbo needs work, the fan will wobble about the shaft...
Drive topless!
Cameron
Hey thanks, I think even I can do that
I was contemplating having a go at taking the whole turbo off myself and taking it in to the servicing people, rather than leave my car with them.
Was going to carefully look at one of those procedures on line somewhere to see if I can do it without making a complete twit of myself. Some of those large bolts look pretty hard to turn, kinda rusted in. So want to be careful not to strip any bolts.
I was contemplating having a go at taking the whole turbo off myself and taking it in to the servicing people, rather than leave my car with them.
Was going to carefully look at one of those procedures on line somewhere to see if I can do it without making a complete twit of myself. Some of those large bolts look pretty hard to turn, kinda rusted in. So want to be careful not to strip any bolts.
Hey, removing the turbo is not 'too' bad. I just did it on my 88'. However...(isn't there always a however?), the top right bolt (as you look at the turbo from the rear) is a complete B%$#! to get at if it is frozen at all. Go out and get a can of liquid wrench and soak all 4 bolts. Never mind about the smell if you drive it off with that oil still on the turbo.
Disconnect the oil feed and return pipes.
Then after a soaking, use a 17mm socket with a long extension for the three outside bolts. I used a torque wrench for better grip... SLOWLY apply pressure. They will come free.
Now, the inside one is tricky (but do-able). The problem is that a bolt from the turbo housing and the surface mounting on the oil return pipe get in the way. First attempt to get it with a close ended 17mm. Fit the end over the bolt and tap it with a rubber hammer. If it is too hard to get to, (and I did this on my 88') remove the brake rotor. This will allow you to tap the turbo down - rotating around the bolt - so that you can get to the bolt from the top. Then, pick a better angle and repeat the above tapping with the rubber hammer. Just when you have invented a new word or two, it will break free and spinn.
Good luck! Drive topless!!!
Cameron (sorry about the length)
Disconnect the oil feed and return pipes.
Then after a soaking, use a 17mm socket with a long extension for the three outside bolts. I used a torque wrench for better grip... SLOWLY apply pressure. They will come free.
Now, the inside one is tricky (but do-able). The problem is that a bolt from the turbo housing and the surface mounting on the oil return pipe get in the way. First attempt to get it with a close ended 17mm. Fit the end over the bolt and tap it with a rubber hammer. If it is too hard to get to, (and I did this on my 88') remove the brake rotor. This will allow you to tap the turbo down - rotating around the bolt - so that you can get to the bolt from the top. Then, pick a better angle and repeat the above tapping with the rubber hammer. Just when you have invented a new word or two, it will break free and spinn.
Good luck! Drive topless!!!
Cameron (sorry about the length)
Hey, it occurs to me that if you do not have the C5 gear box, your rear brake rotors are out-board... so... I think you can skip the rotor removal step. You SHOULD be able to bump your turbo down, spinning it around that inside bolt, with no trouble from the brake!
Drive topless!!!
Cameron
Drive topless!!!
Cameron
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