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Thermostats and Temp senders part numbers ??
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scotmac
#1 Posted : Sunday, October 24, 2010 4:05:51 PM(UTC)
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Can anybody tell me what thermastats I need in my 1979 32 fbs It has twin 318s !! Please help !! Can you use regular car thermastats ? I need part numbers and manufactures !! Also if anybody knows the part numbers for the temp senders as well !! Thanks Guys !! Think
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DiverDennis
#2 Posted : Sunday, October 24, 2010 8:23:16 PM(UTC)
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Yes you can use off the shelf automobile t'stats. 140 degrees for raw water cooling.
On a M360 it is a NAPA 142, Sierra 18-3551.

see also:
http://forums.delphiforu...te/messages/?msg=3071.0
http://www.hurrikain.com/Chrysler-Thermostats.htm
http://marinetteboat.com...thermostats-25-inch.aspx
Surface Interval
1975 28' Express, Single M360
Specs: http://www.boatm8.com/my...amp;page=boats&arr=0
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fastjeff
#3 Posted : Sunday, October 24, 2010 11:42:10 PM(UTC)
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According to my data file, those are the small diameter t-stats. You need the large diameter ones (or make up a stainless adapter plate, as I did).

Jeff
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jralbert
#4 Posted : Monday, October 25, 2010 4:11:45 AM(UTC)
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scotmac wrote:
Can anybody tell me what thermastats I need in my 1979 32 fbs It has twin 318s !! Think
Jeff posted above the info for a raw water cooled engine (140-degree stats), but the fresh water cooled 318's take a 160 degree stat. Marine Parts Source is one place that can give you the right part..that's where I purchased a 160 degree unit with gasket. If you can find one at an auto parts store, you'll save a few bucks - no marine hardware required for this part.
Joel Albert, Potomac MD
"Charlie B" - 1988 32' FBS
Twin 318's/FWC/16x15 nibral props
docked Deale, MD
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scotmac
#5 Posted : Monday, October 25, 2010 4:28:37 AM(UTC)
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What's the difference between RAW water and FRESH WATER system ?? Is fresh water a closed system ?? Is RAW water salt water ?? Im confused !!!
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yooper
#6 Posted : Monday, October 25, 2010 6:26:41 AM(UTC)
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Fresh water is a cooling system like a car engine. It uses anti-freeze in the block which is cooled by an outside water heat exchanger. It is safer because the engine will not freeze - just the undrained heat exchanger or risers. It is a little more complex and expensive. Great if you run in salt water or live in a cold climate.

Raw water is like it sounds. Cooling water is pumped right out of the lake and into the engine block and through the manifolds and risers. It is a simple system. Not good for a dirty or a salt water boat and very hard on cold climate boaters who trust their winterizing to the drunks at a marina. If I sound bitter I am. When you lose an engine you lose a season.
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Dave Morris
#7 Posted : Tuesday, October 26, 2010 11:40:56 AM(UTC)
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Automotive "T"stats can be used with Fresh water (closed) cooling systems OK because of antifreeze but if you have raw water cooling they will only work for a short time with out problems. Auto "T"stats are made of steel & will rust & corrode in raw water. Marine "T" stats are made from brass, stainless, aluminum that are do not rust.
Sierra products ARE marine products & are compatable with both systems. Sierra products are available @ NAPA but you should also be available @ most reputable marine dealers & marine supply stores
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stan
#10 Posted : Tuesday, October 26, 2010 9:00:14 PM(UTC)
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I ran my 318's without the thermostats this year and it ran great only thing is you don't get a reading on the temp gauge.
Scratch my back with a hacksaw..........................
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Docsnow
#11 Posted : Tuesday, October 26, 2010 9:38:34 PM(UTC)
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stan wrote:
I ran my 318's without the thermostats


Stan,

Yup & U more than likely burned up more fuel cause your choke didn't fully open Brick wall

Norm,

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http://www.picturetrail.com/gid23690601 Try it now there's music to listen to while U view the Big M's

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 You'll have bad times, but they'll just wake you up to the good times you weren't paying attention to

Some people try to turn back their odometers.Not me, I want people to know "why" I look this way.I've traveled a long way and some of the roads weren't paved.
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stan
#13 Posted : Tuesday, October 26, 2010 10:30:02 PM(UTC)
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Its seemed to start better this year than the previous, I averaged about a mile per gallon all summer and there were times I was running full throttle. We put about 450 miles on her this summer and the bottom looked really good when pulled out, I used the Schilling paint from Cleveland ( home of the Browns ) and it works really good on the riverBoo hoo!

Also Dave, the stats I have are from napa 142's about 15 bucks apiece up here.
Scratch my back with a hacksaw..........................
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jralbert
#12 Posted : Wednesday, October 27, 2010 3:10:33 AM(UTC)
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stan wrote:
I ran my 318's without the thermostats this year
Hmm. I was strongly advised on the forum this summer not to do that..something about messing up the engine when it's running cool at speed/load.
Joel Albert, Potomac MD
"Charlie B" - 1988 32' FBS
Twin 318's/FWC/16x15 nibral props
docked Deale, MD
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Docsnow
#14 Posted : Wednesday, October 27, 2010 3:56:32 AM(UTC)
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stan wrote:

I averaged about a mile per gallon all summer and there were times I was running full throttle.
the bottom looked really good when pulled out,


Stan,

Now if U had those 142 T Stats in U'd have probably avg about 1.4mpg maybe more with the clean bottom U discribed Anxious Just think how many more Coor's lite U could of drank (aka panther pi$$) Brick wall

Norm,

Big BigM Live On Applause
http://www.picturetrail.com/gid23690601 Try it now there's music to listen to while U view the Big M's

http://www.PictureTrail..../index.php?clubID=20726 this one for the Pix club


 You'll have bad times, but they'll just wake you up to the good times you weren't paying attention to

Some people try to turn back their odometers.Not me, I want people to know "why" I look this way.I've traveled a long way and some of the roads weren't paved.
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ComputerJoe
#8 Posted : Wednesday, October 27, 2010 5:43:18 AM(UTC)
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Dave Morris wrote:
Auto "T"stats are made of steel & will rust & corrode in raw water. Marine "T" stats are made from brass, stainless, aluminum that are do not rust.


Ahh but in the fresh clean water we have in the Great Lakes it dosen't make a difference.
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DiverDennis
#9 Posted : Saturday, October 30, 2010 7:27:49 PM(UTC)
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ComputerJoe wrote:
Dave Morris wrote:
Auto "T"stats are made of steel & will rust & corrode in raw water. Marine "T" stats are made from brass, stainless, aluminum that are do not rust.
Ahh but in the fresh clean water we have in the Great Lakes it dosen't make a difference.
I concur. During the winter layup, I spray it with WD40 and put it in a zip lock bag. When it's time to install, it is tested with hot water first.
Surface Interval
1975 28' Express, Single M360
Specs: http://www.boatm8.com/my...amp;page=boats&arr=0
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Bill
#15 Posted : Sunday, October 31, 2010 1:28:42 AM(UTC)
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Dear D.D.
I have been to Spring Lake and Grand Haven.
Bill
"ALUMINATION"
1975 Marinette 37' Fly Bridge Sedan
Twin Chrysler 360 cu in - 250 hp
Grosse MI - FYC
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