Paul Cassel wrote:
wrote:
Just bought my first boat.

Rusty thermostat implies no coolant / protectant which would further
imply a cracked block. You may also have blown rings or valve guides/seals.

How would one use coolant/protectant on an open system? It uses
riverwater as coolant. Am I missing something? Wow this boating stuff
is more involved than I could have thought. I did a compression check
and that is fine. 175-165 so I think that lets out a head gasket. I
fired it up after changing the oil and ran it for 30 min and then
checked the oil and its fine. Something weird has happened or something
I did caused this to happen I think. Someone said something about a
flapper in the exhaust if stuck could see this when launching the boat
and when coming off plane too quick (as I do). Any suggestions?

On Thu, 14 Sep 2006 14:54:12 -0400, Larry wrote:

"HarryV" wrote in news:1158252466.868700.179920
:

Mechanical fuel pumps have a diaphragm. If this gets even a pinhole
leak, the leak dumps fuel into the crankcase each time the pump
strokes. At least on the pump models I encountered.



Good call, Harry.
///
Worse than your experience was my 6.2L DIESEL V-8 direct fuel pump in the
Chevy P-20. The hole in the diaphram DRAINED the fuel filter on top of the
engine back down into the crankcase every time it sat overnight.
///

Then there was my old Chevy, whose oil level would rise.
Co incidentally, the transmission oil level would go down.

Hard to credit, but the modulation valve in the transmission which is
plumbed to the engine inlet manifold, had a pin hole, and passing
transmission oil.
Not sure how it got to the engine oil - I'm guessing via the inlet
manifold to valve cover pipe - this is intended to eat engine blow by
fumes.
The moral being - engines do the darndest things.....

Brian Whatcott Altus OK

On 14 Sep 2006 12:47:02 -0500, Dave wrote:

On Thu, 14 Sep 2006 17:57:14 +0100, "Alec" said:

Can anyone offer any suggestions?

There was a very similar question on NPR's Car Talk radio show last weekend.
IIRC the answer had to do with failure of the gasoline to burn fully,
resulting in its running down the cylinder walls into the sump. Try a Google
search with Click, Clack (for the click and clack brothers) and "Car Talk"
and you may find it.


Hmmm..Click n Clack run an entertainment show (no disrespect).
A question about oil leaking from transmission to engine oil stopped
them dead - so I never felt quite the same about them afterwards :-)

Brian Whatcott Altus OK

On 14 Sep 2006 12:21:22 -0700, wrote:

Hi sorry I should have pointed it out it is an open cooling system. I
will be doing a compression check but I have no signs of fouling on the
plugs which I would see if water was entering the cyls.
///
Alec

Hmmmm... not quite the same scenario: but if a gasket leaks in
a two stroke outboard, the visible sign is a squeaky clean spark plug.

Some things you know, just ain't so......

Brian Whatcott Altus OK

Brian Whatcott wrote:
On 14 Sep 2006 12:21:22 -0700, wrote:

Hi sorry I should have pointed it out it is an open cooling system. I
will be doing a compression check but I have no signs of fouling on the
plugs which I would see if water was entering the cyls.
///
Alec

Hmmmm... not quite the same scenario: but if a gasket leaks in
a two stroke outboard, the visible sign is a squeaky clean spark plug.

Some things you know, just ain't so......

Brian Whatcott Altus OK

Your right, I am thinking in the mindset of a closed pressurized
cooling system with anti freeze. I(I am an auto engine based person) f
that leaks in it will burn but leaves a nasty yellowish clump of
garbage on the plug. I guess my boat with just plain water would leave
them clean but my plugs have a hint of rich (sooting) which would not
be there if water was induced. So I guess I was in the right ball park
just on the wrong team!

Charlie Morgan wrote in news:e2llg2h30vojnberi523bk3il0bsh9k2in@
4ax.com:

I enjoy listening to the show and seeing of I can come up with the
answer before they do.

CWM



No need to waste Saturday mornings when you can listen online any time....

http://www.cartalk.com/Radio/Show/



--
There's amazing intelligence in the Universe.
You can tell because none of them ever called Earth.

Brian Whatcott wrote in
:

Hmmmm... not quite the same scenario: but if a gasket leaks in
a two stroke outboard, the visible sign is a squeaky clean spark plug.



Jetski motto: "The two stroke engine runs fastest and best....JUST BEFORE
IT SEIZES."........(C;

--
There's amazing intelligence in the Universe.
You can tell because none of them ever called Earth.

wrote:
Paul Cassel wrote:
wrote:
Just bought my first boat.
Rusty thermostat implies no coolant / protectant which would further
imply a cracked block. You may also have blown rings or valve guides/seals.

How would one use coolant/protectant on an open system? It uses
riverwater as coolant. Am I missing something? Wow this boating stuff
is more involved than I could have thought. I did a compression check
and that is fine. 175-165 so I think that lets out a head gasket. I
fired it up after changing the oil and ran it for 30 min and then
checked the oil and its fine. Something weird has happened or something
I did caused this to happen I think. Someone said something about a
flapper in the exhaust if stuck could see this when launching the boat
and when coming off plane too quick (as I do). Any suggestions?

OK, do you mean a total loss system? If so, then you can't use coolant.
I've never encountered a total loss cooling system so I'm out of this one.

If the seller, a dealer, said the engine was in good shape, why not just
demand that he address the issue?

I guess because the deal was sold as-is. I called him and he said to
let him check it out. I told him I was not going to pay a dealer to do
the work as I already have way to much $$$$ in this boat and he said
let's worry about pay later. Well I am worried about how much its going
to cost me now.
Paul Cassel wrote:
wrote:
Paul Cassel wrote:
wrote:
Just bought my first boat.
Rusty thermostat implies no coolant / protectant which would further
imply a cracked block. You may also have blown rings or valve guides/seals.

How would one use coolant/protectant on an open system? It uses
riverwater as coolant. Am I missing something? Wow this boating stuff
is more involved than I could have thought. I did a compression check
and that is fine. 175-165 so I think that lets out a head gasket. I
fired it up after changing the oil and ran it for 30 min and then
checked the oil and its fine. Something weird has happened or something
I did caused this to happen I think. Someone said something about a
flapper in the exhaust if stuck could see this when launching the boat
and when coming off plane too quick (as I do). Any suggestions?

OK, do you mean a total loss system? If so, then you can't use coolant.
I've never encountered a total loss cooling system so I'm out of this one.

If the seller, a dealer, said the engine was in good shape, why not just
demand that he address the issue?

wrote:
On 16 Sep 2006 07:55:54 -0700, wrote:

I guess because the deal was sold as-is.

Yes. You said that right up front. Glad to see you intend to honor the
terms of the contract you made. Too many cry-babies insist that "as
is" doesn't mean what it says, because they think that's unfair.

I agree with you in principle, but here the dealer said the engine was
in fine shape and it wasn't. I think the OP should advise the dealer of
the deficiencies to see if the dealer, due to general policy, will
address or at least diagnose the problem.