My 2QM20 raw water cooled Yanmar used to steam a lot. I worked with my
mechanic to figure it out. Replacing the thermostat fixed it and also
brought down the block running temp quite a bit.
Also some treatments of salt-away through the cooling systems seemed to
increase the quantity of cooling w
Replaced my exhaust elbow on 1GM last season with a stainless. They're
available on eBay. Made it easier to start and reduced black smoking. Jerry
Sent from my iPhone
> On Apr 2, 2017, at 10:36 PM, Dennis C. via CnC-List
> wrote:
>
> Brent,
>
> If you or the previous owner ran the engin
I like your suggestion. Now I recall last summer the exhaust was belching out a
lot of carbon into the water when the throttle was goosed. You may be onto
something. Ok. Exhaust elbow disassembly is moving closer to the top of the
list.
Thanks.
Brent
27-5
Sent from my iPhone
> On Apr 2, 201
Brent,
If you or the previous owner ran the engine at low rpms frequently, then
mix elbow pluggage is more likely. Diesels, and Yanmars in particular,
like high rpm and heavy loads.
First thing to try is to disconnect the water discharge hose that connects
to the mix elbow. With the engine cold
;
>
> Rick Brass
> Washington, NC
>
>
>
> From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Gary
> Russell via CnC-List
> Sent: Sunday, April 02, 2017 1:18 PM
> To: C&C List
> Cc: Gary Russell
> Subject: Re: Stus-List white smoke/ste
List white smoke/steam
I would not recommend that, as the uneven heating of the head and block could
do a lot of damage before you could ascertain whether there was white smoke or
steam coming out. Carefully watching the coolant level is the safest thing to
do.
Gary
S/V Kayl
I would not recommend that, as the uneven heating of the head and block
could do a lot of damage before you could ascertain whether there was white
smoke or steam coming out. Carefully watching the coolant level is the
safest thing to do.
Gary
S/V Kaylarah
~~~_/)~~
On Sun, Apr 2, 2017
While not good for the raw water impeller, could a test be carried out where a
cold engine is started without a raw water feed for a couple of minutes. If
theres a coolant leak in the cylinder the smoke should disappear. Just thinking
outside the box.
Brent
27-5
s/v Wild Rover
Sent from my i
In the general sense, probably not. In this case, where the leak is
suspected to be between the cylinder and the coolant passages, it might
show the problem. But a leak between a coolant passage and and an oil
passage, (for example) would not show up on a compression test.
Gary
S/V Kaylarah
~~
Just a question but couldn't a compression test be done to rule out a head
gasket issue?
Len
Sent from my mobile device.
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