| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 142.1 | What type of cooling? | NAC::SWEET | Capt. Codfish. Desperatly seeking Charlie | Wed Sep 07 1988 09:07 | 7 |
| Fresh or raw water cooled? My raw water cooled merc 230 i/o runs
cool. About 120 degrees at cruise and lower at idle, consider the
fact that around here you are running 65 degree water through the
block. If you are fresh water cooled I would guess you would run
hotter because of less heat tranfer but that is only a guess.
Bruce
|
| 142.2 | I run about 170 Degrees | MYVAX::ONEILL | | Wed Sep 07 1988 10:13 | 8 |
| I have the 4.3L OMC (V-6 175hp) in my 1988 21' Four Winns, I find that the
temperture run about 170 degrees, regarding the cooling system question
asked in .1 Currently OMC uses raw water for cooling.
Mike
|
| 142.3 | How hot is hot | WR2FOR::DODDS_JA | | Wed Sep 07 1988 11:56 | 3 |
| It's fresh water cooled from the delta. The water temp lately has
been running around 74 degrees.
|
| 142.4 | hot or to hot.... | MRMFG1::J_BORZUMATO | | Wed Sep 07 1988 15:44 | 6 |
| not to be naive, but if your raw water cooled, your thermostat
should control the block temp. ex. a 160 deg. therm. should keep
the block at about 160 to 175. i'd call the manufacturer or dealer
and ask whats normal.
jim.
|
| 142.5 | just follow your knows | NETMAN::BAER | Garry Baer | Wed Sep 07 1988 17:38 | 6 |
|
The cooling system (except the water p/u and the exhaust manifolds)
is much like a car. The "lake" is your radiator. if you have a 160 degree
thermostat, you should not exceed 160. likewise with 180 thermostat. Some
boat (mainly inboard) designs allow debris into the engine vial the water pickup.
Over time this could collect and cause an increase in your operating temp.
|
| 142.6 | Keep cool | SETH::WHYNOT | | Wed Sep 07 1988 17:44 | 5 |
| For raw water cooled inboards, check the strainer inside the
trasmission oil cooler. Mine gets debrise in it and there is
a slight rise in eng temp as the season goes on due to constriction.
Doug
|
| 142.7 | Motor or Tranny? | ARCHER::SUTER | Water is meant to ski on! | Wed Sep 07 1988 18:27 | 10 |
|
RE: Doug...
> For raw water cooled inboards, check the strainer inside the
> trasmission oil cooler. Mine gets debrise in it and there is
For the motor.. Mine is external, it hangs directly on the
raw water intake hose coming from the bottom of the boat.??
Rick
|
| 142.8 | I shouldn't put Nautique parts in a Malibu anyway | SETH::WHYNOT | | Wed Sep 07 1988 21:06 | 10 |
| Rick,
Yes it is external, located between the raw water intake and the
water pump at the motor. But you (correct craft owners) also have
a strainer (wire mesh basket-type-thing in a clear housing) that
catches any debrise before it gets to your oil cooler. Good idea,
I've only seen it on Nautiques. (i.e. not a PCM item) I tried to
order one through a CC dealer, but the intake hoses were different
sizes, and I didn't want to use reducers in my intake line, so
I'll just clean out the oil cooler once a year and save the 35 bucks.
Doug.
|
| 142.9 | "Sunshine" | PBA::SCHLEGEL | | Thu Sep 08 1988 12:50 | 6 |
| It just sounds as though your thermostat doesn't start to open until
you really push (load) the engine and the temperature rises over
160 degrees. Best engine operating temperatures are generally in
the 160 to 180 degrees range. Without more information, I think
you are O.K.
|
| 142.10 | WAIT A MINUTE...... | CURIE::THACKERAY | Ray Thackeray MR03 DTN 297-5622 | Thu Sep 08 1988 14:12 | 11 |
| Before you do anything expensive or a that is a nuisance, first
ask yourself a question:
HOW ACCURATE IS YOUR TEMPERATURE GUAGE????
Maybe a thermometer in the water to check the calibration might
be needed first?
Tally-ho,
Ray
|
| 142.11 | dirty/bad thermostat? | REMEDY::KOPEC | Spaceman Spiff | Fri Sep 09 1988 09:17 | 4 |
| Sounds like a thermostat that isn't closing completely. Either that,
or yout boat has a cooling system like Roger Gaudet's...
...tom
|
| 142.12 | What my shop manual says... | FROSTY::ANDERSEN | Dick Andersen 264-6456 MK01-1/E10 | Wed Oct 05 1988 13:14 | 9 |
| My OMC shop manual (I have an '82 3.8L V6 IO in a 25' Allmand) says
that raw water temp should be about 140-160 and closed cooling should
be about 170-190. The manual has all the '82 engine combinations
in it and the section on cooling doesn't distinguish among the engine
types, only raw water vs closed cooling.
BTW, mine has closed cooling and runs about 180.
Dick
|