I've got water in my engine oil....
 

Hey,
Some seawater is in my newly re-built MDIIB diesel (volvo), what do I do?
I changed the oil five times and the filter twice. Runs great otherwise.

I've got water in my engine oil....
 

MLapla4120 wrote:

Hey,
Some seawater is in my newly re-built MDIIB diesel (volvo), what do I do?
I changed the oil five times and the filter twice. Runs great otherwise.

Not for long it won't. Call the folks who rebuilt it and tell them they
have a problem that requires immediate attention.

You should have called them and followed their instructions before you
posted here.

Rick

I've got water in my engine oil....
 

MLapla4120 wrote:

Hey,
Some seawater is in my newly re-built MDIIB diesel (volvo), what do I do?
I changed the oil five times and the filter twice. Runs great otherwise.

Not for long it won't. Call the folks who rebuilt it and tell them they
have a problem that requires immediate attention.

You should have called them and followed their instructions before you
posted here.

Rick

I've got water in my engine oil....
 

About the only way you could have cooling water in you engine oil is from
the raw water pump seals.

The cylinders are seperate from the crank case and the oil goes to the from
the oil gallery in the crank/came up two seperate passes to the rocker arms
on each head.. There is only a very remote possibility of water getting into
this oil system this way since the oil pressure is always higher than the
water pressure.

If there were to be any leakage over into the oil passage, it would have to
be from a bad head gasket. IMHO, not likely..

Back to my theory of a water pump seal leak.. There is two seals in this
pump and a weep hole between them. Sometimes someone may plug the weep hole
when they see water dripping.. That means the second seal will have water
pressure on it. Since the inter seal is to prevent oil leakage from the
crankcase, the lip is turned inward and has no resistance the water
pressure.

Is there a possibility that someone put water pressure from a garden hose on
the pump during the rebuild/test process?? This can blow the pump seal!!
Best way to bench test or test on the hard is to let the pump take suction
from a bucket and use the hose to keep the bucket full.


--
My opinion and experience. FWIW

Steve
s/v Good Intentions

I've got water in my engine oil....
 

About the only way you could have cooling water in you engine oil is from
the raw water pump seals.

The cylinders are seperate from the crank case and the oil goes to the from
the oil gallery in the crank/came up two seperate passes to the rocker arms
on each head.. There is only a very remote possibility of water getting into
this oil system this way since the oil pressure is always higher than the
water pressure.

If there were to be any leakage over into the oil passage, it would have to
be from a bad head gasket. IMHO, not likely..

Back to my theory of a water pump seal leak.. There is two seals in this
pump and a weep hole between them. Sometimes someone may plug the weep hole
when they see water dripping.. That means the second seal will have water
pressure on it. Since the inter seal is to prevent oil leakage from the
crankcase, the lip is turned inward and has no resistance the water
pressure.

Is there a possibility that someone put water pressure from a garden hose on
the pump during the rebuild/test process?? This can blow the pump seal!!
Best way to bench test or test on the hard is to let the pump take suction
from a bucket and use the hose to keep the bucket full.


--
My opinion and experience. FWIW

Steve
s/v Good Intentions

I've got water in my engine oil....
 

"MLapla4120" wrote in message
...
Hey,
Some seawater is in my newly re-built MDIIB diesel (volvo),
what do I do?
I changed the oil five times and the filter twice. Runs great
otherwise.

Remove the water pump and check the O-ring shaft seals. Also if
you engine was repainted, make sure the weep holes on the shaft
housing are clear. We had the same problem on the MD-11 we used
to have. They had filled the weep holes with paint and when the
seal blew out, the water could not go out the weep holes so it
was pumped right by the rear seal and into the bottom end of the
engine. I was told by a Danish cruiser that this was a common
problem. When it happened again in two years, for another reason,
we replaced it with a 3GM-30F Yanmar. More power and less weight
and I don't worry about the engine filling up with seawater. The
cost of parts for that old engine, if you can find them, must be
made of gold and platinum. I still have cylinders, heads, MS-7
gearbox, starter, alternator, and a few misc other parts if
anyone wants to come to South Carolina and haul them off.

Leanne
s/v Fundy

I've got water in my engine oil....
 

"MLapla4120" wrote in message
...
Hey,
Some seawater is in my newly re-built MDIIB diesel (volvo),
what do I do?
I changed the oil five times and the filter twice. Runs great
otherwise.

Remove the water pump and check the O-ring shaft seals. Also if
you engine was repainted, make sure the weep holes on the shaft
housing are clear. We had the same problem on the MD-11 we used
to have. They had filled the weep holes with paint and when the
seal blew out, the water could not go out the weep holes so it
was pumped right by the rear seal and into the bottom end of the
engine. I was told by a Danish cruiser that this was a common
problem. When it happened again in two years, for another reason,
we replaced it with a 3GM-30F Yanmar. More power and less weight
and I don't worry about the engine filling up with seawater. The
cost of parts for that old engine, if you can find them, must be
made of gold and platinum. I still have cylinders, heads, MS-7
gearbox, starter, alternator, and a few misc other parts if
anyone wants to come to South Carolina and haul them off.

Leanne
s/v Fundy

I've got water in my engine oil....
 

Another source of possible sea water intrusion is through the seawater
injection into the exhaust. Many engines are below the waterline and
require a vented loop ABOVE the waterline to prevent water entering the
engine through the exhaust. Since your engine is newly rebuilt, the
plumbing might have been moved when it was reinstalled.


Hey,
Some seawater is in my newly re-built MDIIB diesel (volvo), what do I do?
I changed the oil five times and the filter twice. Runs great otherwise.

I've got water in my engine oil....
 

Another source of possible sea water intrusion is through the seawater
injection into the exhaust. Many engines are below the waterline and
require a vented loop ABOVE the waterline to prevent water entering the
engine through the exhaust. Since your engine is newly rebuilt, the
plumbing might have been moved when it was reinstalled.


Hey,
Some seawater is in my newly re-built MDIIB diesel (volvo), what do I do?
I changed the oil five times and the filter twice. Runs great otherwise.

I've got water in my engine oil....
 

Nobody has mentioned the thing I would check first- blown oil cooler.

I've got water in my engine oil....
 

Nobody has mentioned the thing I would check first- blown oil cooler.

I've got water in my engine oil....
 

The Volvo MD series engine doesn't have an oil cooler.

Steve
s/v Good Intentions

I've got water in my engine oil....
 

The Volvo MD series engine doesn't have an oil cooler.

Steve
s/v Good Intentions

I've got water in my engine oil....
 

The Volvo MD series engine doesn't have an oil cooler.

Steve
s/v Good Intentions


Oh.

Probably ought to. :-)

I've got water in my engine oil....
 

The Volvo MD series engine doesn't have an oil cooler.

Steve
s/v Good Intentions


Oh.

Probably ought to. :-)

I've got water in my engine oil....
 

Happend to me once, because the risers had rusted away internally.

I've got water in my engine oil....
 

Happend to me once, because the risers had rusted away internally.

I've got water in my engine oil....
 

Shouldn't have happened on this engine since the OP states that he just
rebuilt the engine, which would mean new cylinders (most likely). The only
other possibility would be a defect in the gasket or gasket surface of the
heads. There's just no other way for water to get into the oil.

In my 15 years experience with Volvo MD series engines, the most likely
culprit will be the water pump seal.

Steve
s/v Good Intentions

I've got water in my engine oil....
 

Shouldn't have happened on this engine since the OP states that he just
rebuilt the engine, which would mean new cylinders (most likely). The only
other possibility would be a defect in the gasket or gasket surface of the
heads. There's just no other way for water to get into the oil.

In my 15 years experience with Volvo MD series engines, the most likely
culprit will be the water pump seal.

Steve
s/v Good Intentions

I've got water in my engine oil....
 

In article ,
"Steve" wrote:

Shouldn't have happened on this engine since the OP states that he just
rebuilt the engine, which would mean new cylinders (most likely). The only
other possibility would be a defect in the gasket or gasket surface of the
heads. There's just no other way for water to get into the oil.

In my 15 years experience with Volvo MD series engines, the most likely
culprit will be the water pump seal.

Steve
s/v Good Intentions



If it was just rebuilt and new liners were installed, without
a pressure test being done on the cooling system, then I would
seriously look at a bad Liner Seal. I don't know this engine,
but a bunch of small diesels that use replaceable liners have
O-Rings, that seal the bottom of the liners, and they can be
bad, out of the box, or get pinched wrong upon assembly.
Most good rebuilders will pressure test the cooling system
for leaks before first fire, just to avoid this problem.
Also may be a warped head and a head gasket that didn't
seal correctly. Pressure test the cooling system, but putting
a plate across the input and output cooling ports and then
run the the pressure up to 20 PSI and then valve it off and
watch a pressure guage installed on one of the plates. It you
got a cooling system leak, it will be obvious in 10 minutes.

Bruce in alaska
--
add a 2 before @

I've got water in my engine oil....
 

In article ,
"Steve" wrote:

Shouldn't have happened on this engine since the OP states that he just
rebuilt the engine, which would mean new cylinders (most likely). The only
other possibility would be a defect in the gasket or gasket surface of the
heads. There's just no other way for water to get into the oil.

In my 15 years experience with Volvo MD series engines, the most likely
culprit will be the water pump seal.

Steve
s/v Good Intentions



If it was just rebuilt and new liners were installed, without
a pressure test being done on the cooling system, then I would
seriously look at a bad Liner Seal. I don't know this engine,
but a bunch of small diesels that use replaceable liners have
O-Rings, that seal the bottom of the liners, and they can be
bad, out of the box, or get pinched wrong upon assembly.
Most good rebuilders will pressure test the cooling system
for leaks before first fire, just to avoid this problem.
Also may be a warped head and a head gasket that didn't
seal correctly. Pressure test the cooling system, but putting
a plate across the input and output cooling ports and then
run the the pressure up to 20 PSI and then valve it off and
watch a pressure guage installed on one of the plates. It you
got a cooling system leak, it will be obvious in 10 minutes.

Bruce in alaska
--
add a 2 before @

I've got water in my engine oil....
 

These engines don't use liners. Each cylinder sits on top of the crankcase
opening with a shims between the cylinder base. There is a machine cylinder
skirt that fits into the machined opening in the crankcase for a registered
fit. The shims are inserted or removed to adjust piston top
clearance/compression ratio. Other wise this is a metal to metal fit up.

The water jacket in only in the cylinder casting and there is at least a
half inch of metal in the bottom of this water jacket.

The cylinder are held in place by the four long head studs that thread into
the crankcase. The passage for these four bolt does not pass through the
water jacket.

The oil passage from the crankcase gallery goes up to the head/rockers via
an independant passage in the cylinder casting. Oil runs back via the push
rod opening in the head and cylinder casting.

So there is only one mechanical joint in this whole assembly that could let
cooling water get into the crankcase and that is the head gasket.. It's been
5 years since I had a Volvo MD cylinder head off and I'm not sure there is
an O ring in this location.. However it this O ring were missing, IMHO there
would be evidence of oil leaking from the head/cylinder joint.

--
My opinion and experience. FWIW

Steve
s/v Good Intentions

I've got water in my engine oil....
 

These engines don't use liners. Each cylinder sits on top of the crankcase
opening with a shims between the cylinder base. There is a machine cylinder
skirt that fits into the machined opening in the crankcase for a registered
fit. The shims are inserted or removed to adjust piston top
clearance/compression ratio. Other wise this is a metal to metal fit up.

The water jacket in only in the cylinder casting and there is at least a
half inch of metal in the bottom of this water jacket.

The cylinder are held in place by the four long head studs that thread into
the crankcase. The passage for these four bolt does not pass through the
water jacket.

The oil passage from the crankcase gallery goes up to the head/rockers via
an independant passage in the cylinder casting. Oil runs back via the push
rod opening in the head and cylinder casting.

So there is only one mechanical joint in this whole assembly that could let
cooling water get into the crankcase and that is the head gasket.. It's been
5 years since I had a Volvo MD cylinder head off and I'm not sure there is
an O ring in this location.. However it this O ring were missing, IMHO there
would be evidence of oil leaking from the head/cylinder joint.

--
My opinion and experience. FWIW

Steve
s/v Good Intentions

I've got water in my engine oil....
 

I have a friend who has this problem, and it turns out it may not be all that
serious. He changed oil and ran it a bit, then changed oil again and ran it,
and did that a couple of times. When he had finished, the mechanic told him
that he had just steam cleaned his engine.

But there may be more to it that I have forgotten. I am going to sent this to
the guy and see if he won't tell any part of the story that I forgot.

What I do know, however, is that with a little work he certainly didn't have to
have the engine rebuilt.



MLapla4120 wrote:

Hey,
Some seawater is in my newly re-built MDIIB diesel (volvo), what do I do?
I changed the oil five times and the filter twice. Runs great otherwise.

I've got water in my engine oil....
 

I have a friend who has this problem, and it turns out it may not be all that
serious. He changed oil and ran it a bit, then changed oil again and ran it,
and did that a couple of times. When he had finished, the mechanic told him
that he had just steam cleaned his engine.

But there may be more to it that I have forgotten. I am going to sent this to
the guy and see if he won't tell any part of the story that I forgot.

What I do know, however, is that with a little work he certainly didn't have to
have the engine rebuilt.



MLapla4120 wrote:

Hey,
Some seawater is in my newly re-built MDIIB diesel (volvo), what do I do?
I changed the oil five times and the filter twice. Runs great otherwise.

I've got water in my engine oil....
 

I have a friend who has this problem, and it turns out it may not be all that
serious. He changed oil and ran it a bit, then changed oil again and ran it,
and did that a couple of times. When he had finished, the mechanic told him
that he had just steam cleaned his engine.

But there may be more to it that I have forgotten. I am going to sent this to
the guy and see if he won't tell any part of the story that I forgot.

What I do know, however, is that with a little work he certainly didn't have to
have the engine rebuilt.



MLapla4120 wrote:

Hey,
Some seawater is in my newly re-built MDIIB diesel (volvo), what do I do?
I changed the oil five times and the filter twice. Runs great otherwise.

I've got water in my engine oil....
 

I have a friend who has this problem, and it turns out it may not be all that
serious. He changed oil and ran it a bit, then changed oil again and ran it,
and did that a couple of times. When he had finished, the mechanic told him
that he had just steam cleaned his engine.

But there may be more to it that I have forgotten. I am going to sent this to
the guy and see if he won't tell any part of the story that I forgot.

What I do know, however, is that with a little work he certainly didn't have to
have the engine rebuilt.



MLapla4120 wrote:

Hey,
Some seawater is in my newly re-built MDIIB diesel (volvo), what do I do?
I changed the oil five times and the filter twice. Runs great otherwise.

I've got water in my engine oil....
 

I have a friend who has this problem, and it turns out it may not be all that
serious. He changed oil and ran it a bit, then changed oil again and ran it,
and did that a couple of times. When he had finished, the mechanic told him
that he had just steam cleaned his engine.

But there may be more to it that I have forgotten. I am going to sent this to
the guy and see if he won't tell any part of the story that I forgot.

What I do know, however, is that with a little work he certainly didn't have to
have the engine rebuilt.

MLapla4120 wrote:

Hey,
Some seawater is in my newly re-built MDIIB diesel (volvo), what do I do?
I changed the oil five times and the filter twice. Runs great otherwise.

I've got water in my engine oil....
 

I have a friend who has this problem, and it turns out it may not be all that
serious. He changed oil and ran it a bit, then changed oil again and ran it,
and did that a couple of times. When he had finished, the mechanic told him
that he had just steam cleaned his engine.

But there may be more to it that I have forgotten. I am going to sent this to
the guy and see if he won't tell any part of the story that I forgot.

What I do know, however, is that with a little work he certainly didn't have to
have the engine rebuilt.

MLapla4120 wrote:

Hey,
Some seawater is in my newly re-built MDIIB diesel (volvo), what do I do?
I changed the oil five times and the filter twice. Runs great otherwise.

I've got water in my engine oil....
 

I have a friend who had this problem, and it turns out it may not be all that
serious. He changed oil and ran it a bit, then changed oil again and ran it,
and did that a couple of times. When he had finished, the mechanic told him
that he had just steam cleaned his engine. It ran very well thereafter.

But there may be more to it that I have forgotten. I am going to sent this to
the guy and see if he won't tell any part of the story that I forgot.

What I do know, however, is that with a little work he certainly didn't have to
have the engine rebuilt.

MLapla4120 wrote:

Hey,
Some seawater is in my newly re-built MDIIB diesel (volvo), what do I do?
I changed the oil five times and the filter twice. Runs great otherwise.

I've got water in my engine oil....
 

I have a friend who had this problem, and it turns out it may not be all that
serious. He changed oil and ran it a bit, then changed oil again and ran it,
and did that a couple of times. When he had finished, the mechanic told him
that he had just steam cleaned his engine. It ran very well thereafter.

But there may be more to it that I have forgotten. I am going to sent this to
the guy and see if he won't tell any part of the story that I forgot.

What I do know, however, is that with a little work he certainly didn't have to
have the engine rebuilt.

MLapla4120 wrote:

Hey,
Some seawater is in my newly re-built MDIIB diesel (volvo), what do I do?
I changed the oil five times and the filter twice. Runs great otherwise.

I've got water in my engine oil....
 

I have a friend who had this problem, and it turns out it may not be all that
serious. He changed oil and ran it a bit, then changed oil again and ran it,
and did that a couple of times. When he had finished, the mechanic told him
that he had just steam cleaned his engine.

But there may be more to it that I have forgotten. I am going to sent this to
the guy and see if he won't tell any part of the story that I forgot.

What I do know, however, is that with a little work he certainly didn't have to
have the engine rebuilt.

MLapla4120 wrote:

Hey,
Some seawater is in my newly re-built MDIIB diesel (volvo), what do I do?
I changed the oil five times and the filter twice. Runs great otherwise.

I've got water in my engine oil....
 

I have a friend who had this problem, and it turns out it may not be all that
serious. He changed oil and ran it a bit, then changed oil again and ran it,
and did that a couple of times. When he had finished, the mechanic told him
that he had just steam cleaned his engine.

But there may be more to it that I have forgotten. I am going to sent this to
the guy and see if he won't tell any part of the story that I forgot.

What I do know, however, is that with a little work he certainly didn't have to
have the engine rebuilt.

MLapla4120 wrote:

Hey,
Some seawater is in my newly re-built MDIIB diesel (volvo), what do I do?
I changed the oil five times and the filter twice. Runs great otherwise.