Head gasket? - Maserati Forum
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post #1 of 18 Old 03-24-2019, 06:58 AM Thread Starter
 
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Head gasket?

I picked up a quattroporte couple months ago, did a fresh oil change, checked all fluids, gear oil etc etc and I decided to take it out today since it was sitting for a week in the garage. In the morning it was fine, drove over 40 miles, parked it for about 2 hours, start it and a bunch of whit smoke came out and went away, drove it for 20 miles, parked it for an hour, start it and crazy amount of white smoke that took a bit till it cleared out. Took it home, and check the oil which it was changed 200 miles ago, and it’s milky white... is it the head gasket? Oil cooler problems? Or is it like how German cars in the cold they get milky? Any openions? Greatly appreciated..
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post #2 of 18 Old 03-24-2019, 08:27 AM
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Well it it is the head gasket I think it'd be the first one I've heard of. But it does rather sound like it. What's your coolant like?

C

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post #3 of 18 Old 03-24-2019, 03:57 PM Thread Starter
 
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Coolant is fine, no discoloration and full. Dosent overheat either.
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post #4 of 18 Old 03-24-2019, 04:01 PM Thread Starter
 
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Also just to add, the car only has 46k miles
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post #5 of 18 Old 03-25-2019, 06:30 AM
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Probably need to get it checked by a pro.

C

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post #6 of 18 Old 03-25-2019, 09:48 PM
 
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Oil that is "milky white" is not good. If coolant is indeed getting into the oil system, then the coolant level should go down, while the oil level goes up. Was the oil level checked per the factory recommended method (Engine warm, wait 5 minutes, etc)...?
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post #7 of 18 Old 03-27-2019, 06:17 PM

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I think the white smoke coupled with the milky oil is what is scary. Please let us know the verdict, when you find it.

Erik Di Somma
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post #8 of 18 Old 03-27-2019, 11:42 PM Thread Starter
 
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Just an update, started it today smoked a very tiny bit, checked the smell and it was just strong gas smell. No burn smell or sweet smell or anything. Checked the oil again after warming for 5 mins and very minimal white in the oil. Just at the very bottom of the dipstick. Not sure what’s going on, but will have a pro look at it and keep you guys posted.
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post #9 of 18 Old 03-28-2019, 12:21 AM
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It may be a problem with the water / oil pump that is letting coolant into the oil system? (they are combined)

Hope that helps!

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post #10 of 18 Old 03-28-2019, 06:37 AM
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Originally Posted by FormulaDynamics View Post
It may be a problem with the water / oil pump that is letting coolant into the oil system? (they are combined)

Hope that helps!

Best Regards,

Are they combined on the QP as well? I know there have been some issues seen on the Coupe which, in most cases, has been diagnosed post engine implosion :(

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post #11 of 18 Old 03-28-2019, 07:37 AM
 
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I’ve had the combined oil and water pump apart and there are seals on each system with a weep hole in the “dry” shaft space between them. So I can’t say it didn’t happen there, but it seems unlikely.
The weep hole would have to be blocked for pressure to force water into the oil pump.
Sorry for the situation you are in. Hope you get it resolved.
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post #12 of 18 Old 03-28-2019, 11:57 PM
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Yes, they are combined on the early QP's, we've seen at least one case of a failure. It really needs to go to a shop for diagnosis.

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post #13 of 18 Old 03-29-2019, 11:35 AM
 
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Assuming the weep holes on each end of the water pump get clogged it seems possible that coolant gets forced into the oil. Either on the oil pump side or on the chain drive side that takes its rotation off the timing chain inside the oil bath.
There are heat shields, headers and such in the way, but you might be able to fish a coat hanger wire up to the weep holes and make sure they are clear and or dry.
Also worth considering, before deciding to go after the head gasket, is the oil cooler/heat exchanger. I am not familiar with this part, but it appears to be an oil to water exchanger, so any leak there could result in milky oil.
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post #14 of 18 Old 03-29-2019, 07:06 PM

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I've seen first hand the milky oil caused by the oil/water pump pump leakage on the QP. But the fact that your car has white smoke sounds like you're getting water into the combustion chamber which is an entirely different animal (sounds like head gasket, although I've never heard of one blow). Under no circumstances am I making a diagnosis, but I'd get that looked at right away. Jms is right, there is an oil cooler which is prone to failure, and cause milky oil when it does, but I still don't believe it can cause the smoke issue.

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post #15 of 18 Old 03-30-2019, 04:30 AM Thread Starter
 
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Thanks for all the responses, really great info! I really don’t think it’s a head gasket... before changing the oil “not too long ago” it was just burnt old oil. I can tell the past owner didn’t keep up with maintenance. There’s leaks around the engine close to the manifolds, oil was low burnt, gear oil was low, steering oil was low etc etc. I’m scheduled next week to get it checked out by a good mechanic, was considering the dealer but I’m sure they will charge an arm and a leg to just look at it.
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