| Author |
Message |
    
Richard Day
| | Posted on Wednesday, July 31, 2002 - 09:07 pm: | 
|
My problem is I received a request for the source of the thermostatic flow control valve that Palmer used with the P-60. It was made by DOLE but they have been bought eight or nine times and I struck out in Thomas Register and tips from various companies that made similar but not suitable units. This thermostatic valve sets the engine block temperature under 150 degrees for salt water and a higher temperature unit sets it at 165 for fresh water cooling. The way it works is simple it closes off the intake water in relation to the block discharge water and keeps the block at the desired temp. Any 1/2 inch NPT, T arranged valve that does this would be a suitable replacement as it simply goes in the water lines to the block and exhaust manifold. It is not a part of the engine. Can anyone help on this one?
Thanks. |
andrew
| | Posted on Saturday, September 14, 2002 - 07:07 pm: |
|
Dick,
Did you ever find a current source for that valve. I get quite a few requests for Palmer P-60 parts including that thermostat....
Thanks,
Andrew |
Ernie
| | Posted on Sunday, September 15, 2002 - 08:39 am: |
|
I had one apart a while back. It looked like an outboard motor thermostat. I wonder if anyone has tried to match one up. I would suspect that the temp should be in the right range since I don't remember any outboards having a freshwater option. |
Richard Day
| | Posted on Sunday, September 15, 2002 - 08:25 pm: |
|
No luck at all. Have to look into my junk pile and see if I can find one that might be good. There must be some company that makes these things as they surely are not unique to marine engines. I would guess the real problem will be to find a 143 degree thermostat for use in salt water. I know they used 150s but don't know how much salt would percipatate out at that temperature. Still looking. |
Eddie
| | Posted on Wednesday, March 26, 2003 - 03:36 pm: |
|
Andrew, Did you ever find your thermostat? I found a source in NY. Bought two salt water 143 degree thermostats. I have a 1973 Ericson with a P-60 engine in Oxnard, CA. Would like to cnvert to heat exchange system. Eddie |
andrew
| | Posted on Wednesday, March 26, 2003 - 04:21 pm: |
|
Eddie,
No I haven't found a source, and I have had other people ask about it too. You could post your source here or email it to me.
Thanks.
Regards, Andrew |
Eddie
| | Posted on Wednesday, March 26, 2003 - 05:42 pm: |
|
Andrew,
Duby Auto & Marine
254 Sweeney St N.
Tonawanda, NY 14120
716-694-0922
My E-mail [email protected]
Regards,
Eddie |
Richard Day
| | Posted on Thursday, March 27, 2003 - 06:19 am: |
|
Andrew, I had given up trying to locate the thermostat. I have a couple of used Dole housings but no thermostat inserts. Will follow up Eddie's lead. I would think if he went to change to a heat exchanger system he would want at least a 165 or higher thermostat as the engine is more efficient at the higher temp. A 190 would probably make the engine uncomfortably hot in a confined space even though it would probably be a lot happier. |
Eddie
| | Posted on Thursday, March 27, 2003 - 10:15 am: |
|
Richard,
Do you know anything about converting a P-60 raw water system to heat exchange system?
When I got my thermostats from Duby Marine he told me that it would be a lot more for the thermostat housing. I would think the housings you have are the more important parts.
Thanks,
Eddie |
Richard Day
| | Posted on Thursday, March 27, 2003 - 08:13 pm: |
|
Well first you need a heat exchanger. This is typically for the P-60 a round brass vertical tank about 6" in dia. by 24" high The top area allows for exspansion and toping up the cooling water of the block. Often the mix is 50:50 fresh water and anti freeze. I can put a diagram on here if that would help or send me an address and I will drop one in the mail. A raw water pump is mounted on the the foward end of the engine driven by a v belt mounted in front of the flywheel. This pumps sea water into the heat exchanger and it is discharged down the exhaust pipe aft of the exhaust manifold. The heat exchanger contains a series of tubes that are surounded by the sea water. The pump mounted on the aft end of the engine circulates fresh water in the block and exhaust manifold water jacket. The thermostat regulates the block circulating water temperature and the sea water never get near the block water jackets. You do need more than the thermostat And that the Dick Day short course on heat exchangers. |
Eddie
| | Posted on Friday, March 28, 2003 - 12:25 pm: |
|
Dick,
Indigo Electronics makes an exchange system kit for Atomic4's. It has a raw water pump that shares a drive belt with the alternator. The kit has a bracket for this that fits an Atomic4. this area would have to be jury rigged for the Palmer. The existing pump circulates coolant. This might be away to go being that most of the system is there.
Here' my address:
Eddie Ross
5062 Knight Way
Palmdale, CA 93552-3832
Thanks,
Eddie |
Richard Day
| | Posted on Friday, March 28, 2003 - 08:16 pm: |
|
Thanks for the input Eddie. The Atomic Four heat exchanger would be ideal for the P-60 they are very similar heat loads. |
Eddie
| | Posted on Monday, March 31, 2003 - 09:31 am: |
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I recieved some help from Sierra International with trying to get a thermostat. They have a Technical Support Engineer who can try and match your needs by dimentions and heat range specifications.
Phone: 217-324-9400 |
Del Street
| | Posted on Thursday, April 10, 2003 - 06:30 am: |
|
The graymarine 4-91 seascout uses a temperature controller with a standard sized thermostat element (also used for OHV 4 cylinder engines)and has a separate pressure limiting bypass section (spring loaded valve) for when cold. The main assembly consists of three iron castings that bolt together. Van Ness Engineering might well have new ones: 201-445-8685
I bought a 180degree thermostat at Boat US when I changed over to fresh water cooling. For this engine I had to mount a commercial double belt pulley on a shaft extension for the second water pump, a Sherwood 1/2". My Sendure heat exchanger is a 3" by 12" vertical and does the job fine on this larger engine (91cu"). You will need a radiator cap somewhere up high, maybe part of the exchanger or can use a Volvo automotive expansion tank (pressurized)if not.
PS. Indigo Electronics sells a custom temp control system for the Atomic. I think it's variable in temp too. |
Randy Biddle
| | Posted on Friday, January 16, 2004 - 11:02 am: |
|
Lathrop 40 HP, c. 1925-26
How is this engine cooled?
Making a ship model of a schooner with this Lathrop installed and want to show the coolant water outlet if appropriate.
Please reply to my email in addition to posting if possible.
Thanks. |
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