| T O P I C R E V I E W |
| Justus3 |
Posted - 08/20/2009 : 2:24:04 PM
I just had a look at the owners manual for the Pleasure Craft 302 Fords. It indicates that the engines should run at 140-160 when cooled directly by seawater but 180-190 when cooled by a fresh water system.
I didn't realize there would be a difference. I do have fresh water cooling and run at around 180.
Ron
1978 Carver Santa Cruz 28
Vancouver Island BC |
| 15 L A T E S T R E P L I E S (Newest First) |
| Jimbo Song |
Posted - 08/25/2009 : 11:16:41 PM
Well, it is indeed confusing. If this engine is indeed supposed to run that hot then why do they even make a 140 degree and a 160 degree thermostat?
But, hey, when in doubt, I guess go with the factory guys. They built the darn thing. 
Bob
1987 Carver Voyager 28
"Jimbo Song"
Palm Coast, FL |
| Justus3 |
Posted - 08/25/2009 : 4:46:19 PM
Don't shoot the messanger.
A Pleasurecraft dealer offered to contact Pleasurecraft directly for me and he was told in the strongest possible terms NOT to put a 140 degree thermostat on this engine. PC told him that it is the best engine they ever made and it should not be run that cool. The only Tstat made for this housing is the 170.
Ron
1978 Carver Santa Cruz 28
Vancouver Island BC |
| Justus3 |
Posted - 08/24/2009 : 9:39:48 PM
Much appreciated.
Ron
1978 Carver Santa Cruz 28
Vancouver Island BC |
| Jimbo Song |
Posted - 08/24/2009 : 6:13:36 PM
Here's the web page.
www.iboats.com/pleasurecraft_parts/dm/dz.5004--view_id.268642
Bob
1987 Carver Voyager 28
"Jimbo Song"
Palm Coast, FL |
| Justus3 |
Posted - 08/24/2009 : 1:25:16 PM
I don't see it there Bob. If you can ID it I'd sure appreciate a part number or even a maker of the cooling kit. Thanks. Ron
1978 Carver Santa Cruz 28
Vancouver Island BC |
| Jimbo Song |
Posted - 08/24/2009 : 08:40:29 AM
T-Stat readily available on www.iboats.com.
Bob
1987 Carver Voyager 28
"Jimbo Song"
Palm Coast, FL |
| Justus3 |
Posted - 08/23/2009 : 5:36:52 PM
I'll try another one
1978 Carver Santa Cruz 28
Vancouver Island BC |
| Justus3 |
Posted - 08/23/2009 : 5:30:29 PM
OOPs - too big - sorry
1978 Carver Santa Cruz 28
Vancouver Island BC |
| Justus3 |
Posted - 08/23/2009 : 5:28:58 PM
OK - let's see if a picture appears:
1978 Carver Santa Cruz 28
Vancouver Island BC |
| Rockmeister |
Posted - 08/22/2009 : 5:58:02 PM
Hey Ron!
You can goto www.tinypic.com
Create an account, it is free & easy to do.
Select Pic to upload.
Make sure to RESIZE the pic to message board size.
After pic is uploaded to tinypic, copy Message Board link and paste it to here, the pic will then show up.
Hope this helps!
Rock 
I wanna see the thermostat! lol
quote:
Originally posted by Justus3
I suspect my thermostat may not be all that standard. Can someone tell me how to post a picture of it.
Ron
1978 Carver Santa Cruz 28
Vancouver Island BC
79 28' Mariner twin inboard V-drive.
Western Lake Erie: Maumee Bay & The Islands |
| Justus3 |
Posted - 08/22/2009 : 1:41:10 PM
I suspect my thermostat may not be all that standard. Can someone tell me how to post a picture of it.
Ron
1978 Carver Santa Cruz 28
Vancouver Island BC |
| Rockmeister |
Posted - 08/22/2009 : 09:45:18 AM
I agree with Jimbo here, the Fords like to run cooler.
You will find they last longer and make more power.
The 140 to 160 range usually works best.
If you have a closed & sealed cooling system you can get by with hotter, but is not necessarily a good thing.
Just being cooled by fresh water doesn't make it a closed system.
The problems of saltwater are lessened by freshwater, but not eliminated.
So as a general rule the Ford engines should be run cooler.
The thermostat is a standard sized automotive thermostat.
160 is about the lowest temp automotive one you will find easily.
Napa carries a 140 degree thermostat for a Merc that will fit right in perfectly also.
Hope this helps!
quote:
Originally posted by Jimbo Song
Yeah, I agree that they CAN run hotter with a closed system. But, I don't think they should. Just to make myself feel better I looked up the part number for the recommended thermostat and it is a 140 degree thermostat. My delimma is; "If the manual calls for 180-190 degrees why does the parts list call for a 140 degree thermostat?
Bob
79 28' Mariner twin inboard V-drive.
Western Lake Erie: Maumee Bay & The Islands |
| Justus3 |
Posted - 08/21/2009 : 8:02:12 PM
I took the old tstat (in its housing) to two marine supply stores and both said they have never seen anything like it and had no idea what the replacement would be. Does anyone have any suggestions for finding the correct replacement?
Ron
1978 Carver Santa Cruz 28
Vancouver Island BC |
| Justus3 |
Posted - 08/21/2009 : 7:57:28 PM
I pulled out one of the Tstats and it is a 170.
1978 Carver Santa Cruz 28
Vancouver Island BC |
| Jimbo Song |
Posted - 08/20/2009 : 6:19:53 PM
Yeah, I agree that they CAN run hotter with a closed system. But, I don't think they should. Just to make myself feel better I looked up the part number for the recommended thermostat and it is a 140 degree thermostat. My delimma is; "If the manual calls for 180-190 degrees why does the parts list call for a 140 degree thermostat?
Bob
quote:
Originally posted by Bob On This
The fresh water cooling can run the higher temps because the coolant is pressurized and therefor will not boil at the 190 deg temps.
(the higher the pressure the higher the boiling point)
Just try to make coffee at 10,000 feet. The water will boil but it's not very hot at all.
The sea water cooled engine has basically zero pressure and the water will begin to boil, and will really mess with your engines.
Bob
Diver Down
1987 Carver Voyager 28
"Jimbo Song"
Palm Coast, FL |
