| Author |
Message |
Andr� Ferreira da Costa (Oporto328)
New member
Username: Oporto328
Post Number: 35
Registered: 9-2002
| | Posted on Wednesday, February 26, 2003 - 9:51 pm: | |
Anyway, thank you very much for your opinions and informations. That's why this is such a great community!! |
Andr� Ferreira da Costa (Oporto328)
New member
Username: Oporto328
Post Number: 34
Registered: 9-2002
| | Posted on Wednesday, February 26, 2003 - 9:49 pm: | |
Sorry for not posting before. It's that just yesterday the mechanics found out what the problem was. It was no water smoke, but oil smoke. It was no big deal of a problem. It is a leaking round oil seal that allows some oil to fall exactly at the exhaust pipe that comes from the 5-8 cylinders (the cylinders that are near the cockpit). They said that this only occured when the car was moving due to the increased oil pressure. Well, I will pick up car saturday and see if the problem is solved.
I think that the head gasket problem is not the case. What a relief!
This seal is at the end of that mechanic part (which I don't know the name in english - in portuguese is called cambota) that is connected to all cylinders and that transfers engine rotation to the flywheel if I'm not wrong. |
Ulf Modig (Ulf308qv)
Junior Member
Username: Ulf308qv
Post Number: 59
Registered: 3-2001
| | Posted on Sunday, February 16, 2003 - 7:34 pm: | |
When you had the repair done, did the workshop measure/resurface the cylinder heads? Aluminium heads normally has to be resurfaced if the engine was overheated. To check if you can pick up a reading with an exhaust gas analyser from the coolant expansion tank. |
Paul Hill (348paul)
New member
Username: 348paul
Post Number: 35
Registered: 12-2002
| | Posted on Tuesday, February 11, 2003 - 1:03 pm: | |
Just a comment on the milky emulsion that can be found under the oil cap.
If you live in a colder climate (like I do!) there is a greater tendency for the this milky emulsion to be caused by the engine not getting hot enough to drive out the moisture in the oil. It is also multiplies the problem due to there being a separate oil tank.
I see this milky emulsion on my 348 in the colder months but never in the warmer ones.
If you unscrew the cap an lift it straight up - (don�t turn it over) - you can some times see clear droplets of water hanging on that have condensed. Oils these days are designed to deal with a certain level of water content.
Paul
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TomD (Tifosi)
Advanced Member
Username: Tifosi
Post Number: 2659
Registered: 9-2001
| | Posted on Tuesday, February 11, 2003 - 12:06 pm: | |
the heat coming off the engine can look funny sometimes - I wonder if maybe your alt is going? |
Lawrence Coppari (Lawrence)
Member
Username: Lawrence
Post Number: 505
Registered: 4-2002
| | Posted on Tuesday, February 11, 2003 - 12:03 pm: | |
Over the years I wondered if I saw smoke coming from the engine compartment. It was the curvature of the rear window and sun position causing an optical illusion in my case. It was on the passenger side. |
Andr� Ferreira da Costa (Oporto328)
New member
Username: Oporto328
Post Number: 30
Registered: 9-2002
| | Posted on Tuesday, February 11, 2003 - 11:28 am: | |
Luch. I will be with my car tomorrow because it's at Ferrari dealer service. I'll see that. The chief mechanic there didn't work on the car already but he said that probably would be a leaking hose. I really hope it's not a head gasket problem. I'll let you know later.
Mark, it's on the passenger side definitely. I could see that trough the mirror very clearly. It was white smoke. |
Mark Collins (Markcollins)
Junior Member
Username: Markcollins
Post Number: 126
Registered: 7-2002
| | Posted on Monday, February 10, 2003 - 4:43 pm: | |
Andre
is it definitely the Rightside?, my 328 used to do this at high revs and it was oil/ oil vapour coming out of the gearbox breather and burning on the exhaust, but this is on the lefthand side, it was cured by attaching a hose to the breather and venting it into the lefthand wheelarch |
KARL DASTOLI (Luch)
Junior Member
Username: Luch
Post Number: 69
Registered: 2-2001
| | Posted on Monday, February 10, 2003 - 4:34 pm: | |
Check under your oil filler cap. If there is a milky foam under there it's probably a head gasket sorry to say. The foam comes from anti-freeze in your oil. Past experience from other cars not my Ferrari.
Just my $.02 worth
LUCH |
Andr� Ferreira da Costa (Oporto328)
New member
Username: Oporto328
Post Number: 29
Registered: 9-2002
| | Posted on Sunday, February 09, 2003 - 8:58 pm: | |
Ulf, I changed them because had severe overheating problems. It all started with a non-functioning radiator fans because of thermostat failure. I noticed that a little bit late and one time I made the mistake of leting temperature rise to the maximum(around 120�C). The water boiled and came out of the expansion tank. Then I had termostat fixed hoping that I didn't damage the engine. But the car started to overheat every time and loosing water. I had to change head gaskets and repair the engine. It had to come out to do that. So expensive. |
Ulf Modig (Ulf308qv)
Junior Member
Username: Ulf308qv
Post Number: 56
Registered: 3-2001
| | Posted on Sunday, February 09, 2003 - 7:32 pm: | |
Andre, for what reason did you change the head gaskets in the first place?
|
Verell Boaen (Verell)
Member
Username: Verell
Post Number: 543
Registered: 5-2001
| | Posted on Friday, February 07, 2003 - 10:16 pm: | |
Bryan's right on. My diagnal tube was showing signs of wear before I slipped a rubber ring over it & readjusted the hose clamps where it wasn't rubbing. Also check the short rubber hoses & their clamps on each end of the tube. |
Andr� Ferreira da Costa (Oporto328)
New member
Username: Oporto328
Post Number: 28
Registered: 9-2002
| | Posted on Friday, February 07, 2003 - 6:42 pm: | |
Thanks for your opinions. I'm not a very good mechanic myself, but I will make your suggestions to the person that fixes my car. That's what I originnaly thought. A hose or water pump problem. And I hope it's just that. Because changing the head gaskets was really expensive 3000 km's ago.
Anyway, I don't use my car till the problem is solved and the car never overheated (temperature never passed 90�). |
Brian Keegan (4redude)
New member
Username: 4redude
Post Number: 49
Registered: 7-2002
| | Posted on Friday, February 07, 2003 - 3:10 pm: | |
Check the coolant pipe that goes from the water pump down to the lower front corner of the engine.
I have seen many of these that rub either on the pulleys/belts or against the fuel tank and wear a groove or hole into the aluminum pipe. As Verell said, also check the weep hole on the bottom of the water pump. |
Verell Boaen (Verell)
Member
Username: Verell
Post Number: 540
Registered: 5-2001
| | Posted on Friday, February 07, 2003 - 2:14 pm: | |
There are several short coolannt lines along the passenger side ('ie: across the front of the engine). If one of them is cracked, or just the hose clamp has come loose you'll get what you describe. The water pump is there also. The water pump's seal may be leaking under pressure.
Pull the right tire & the wheel well liner & you can inspect most of that area quite well.
BTW, check/keep constant watch of your coolant level, if you can see the vapor, you may be loosing it pretty fast. These engines won't take overheating. |
Lawrence Coppari (Lawrence)
Member
Username: Lawrence
Post Number: 495
Registered: 4-2002
| | Posted on Friday, February 07, 2003 - 8:48 am: | |
I have to think (and hope) you have a coolant hose connection leak somewhere rather than a head gasket problem. Suggest letting it idle until the fans cut on. Shut off engine when fans come on. This will cause pressure to rise even more and might make leak obvious.
Check engine oil to see if it is discolored. |
Andr� Ferreira da Costa (Oporto328)
New member
Username: Oporto328
Post Number: 27
Registered: 9-2002
| | Posted on Friday, February 07, 2003 - 8:06 am: | |
Last weekend while driving my 328, some white smoke started coming out from the engine. It's not exhaust smoke. It comes out from the rear grill (right side). I could see that from the interior mirror. It only made it when going fast at high rpm's. Then I went home and with the car stopped i revved and it doesn't make smoke. Just when the car is moving. Also, inside the cabin when it produces the smoke i can feel some sort of water vapour smell. Is it possible that is a head hasket problem? I changed both of them at 60000km's. Now the car has 63000km's. |