| Author |
Message |
    
Jeff Hall
Visitor
| | Posted on Tuesday, March 18, 2008 - 01:51 pm: | 
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I have a PW-27 engine in my sailboat. It runs good but takes 20 or 30 minutes to warm up and take a load without stalling. Even when fully warmed up the head is fairly cool to the touch. It is raw (salt)water cooled and has no provision for a thermostat. Any suggestions appeciated. |
Roger DiRuscio
Senior Member
Username: solarrog
Post Number: 292
Registered: 03-2002
| | Posted on Tuesday, March 18, 2008 - 02:06 pm: |
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adjust the carburetor its running lean |
Richard A. Day Jr.
Senior Member
Username: richardday
Post Number: 571
Registered: 11-2003
| | Posted on Tuesday, March 18, 2008 - 06:12 pm: |
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Don't think you can raise the engine temp over 143F with salt water cooling. All you will do is fill the water jacket with a solid block of salt and totally destroy the engine. I agree the needle valve needs to be opened slightly. |
Jeff Hall
New member
Username: jeff_hall
Post Number: 1
Registered: 03-2008
| | Posted on Thursday, March 20, 2008 - 01:08 pm: |
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Which needle valve,the"idling needle valve" or the"main jet adjustment"? I'm glad I didn't restrict the water flow like I was thinking of doing. Thanks for your answers. |
Richard A. Day Jr.
Senior Member
Username: richardday
Post Number: 572
Registered: 11-2003
| | Posted on Thursday, March 20, 2008 - 04:21 pm: |
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The main jet adjustment. If that doesn't work suspect the inlet to the top of the float valve may be full of junk limiting full fuel flow. The only easy way to clean it out is to remove the fuel line fitting and used compessed air with a soda straw or equivelent. Push the straw into the bottom of the opening and blow the junk out alongside the straw. They make nifty sets of tips for compressed air blow guns that perform this function very well. Blowing in without the straw or equivelent doesn't drive the gunk out it too often tends to force it into the valve seat |
