| Author |
Message |
    
andrew
| | Posted on Friday, April 09, 2004 - 02:14 pm: | 
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I got the following note from John Greenup:
Quote:I have a Gray Sea Scout made by Gray Marine. It is a Model S-S S/N 61655. the block s/n is stamped 302289ZXB. It has a Wico Series C magneto which is early.
It does not look like a Sea Scout 91.
Does anyone know what this is?
Thanks,
John greenup
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olarry
| | Posted on Saturday, April 10, 2004 - 12:27 pm: |
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Well the engine number looks like a hercules ZXB.One book i have lists sea scout 45 and 91.So maybe you have a 45. |
Bruce
| | Posted on Saturday, April 10, 2004 - 01:47 pm: |
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Serial number makes it a 1936 model- search some old power boating magazines that era for some ads. |
olarry
| | Posted on Saturday, April 10, 2004 - 08:06 pm: |
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ZXB's are very small 4 cylinder engines and are rated 15hp in garden tractors.I have a service manuel (condensed) that covers them.They have poured babbit rod bearings. |
johngreenup
| | Posted on Tuesday, April 13, 2004 - 11:37 pm: |
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thanks for your help...
I suspect it is a Sea Scout 45 a.k.a. Hercules ZXB. Does anyone know what years these were made? Were many made?
John greenup
[email protected] |
pcwroble
New member
Username: pcwroble
Post Number: 3
Registered: 05-2005
| | Posted on Tuesday, May 10, 2005 - 12:26 pm: |
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I was told by a marine engine rebuilder company that my Gray Sea Scout was a 91 CU with 25 HP @ 2000 RPM. That was just over the phone after I told them it was a Gray Sea Scout. They said there was only one model ever made of the Sea Scout and that was it. They probably got that info from a parts book since it probably only showed one 91 CU model. After reading this thread, I think mine may be a Gray Sea Scout 45. A previous owner included a Hercules ZX manual along with the Gray Marine manuals so that also points toward the 45. It is Model S - S with Engine No. 61493. The block number is 303763ZXB. It also has another number on a small plate on the transmission case just above the prop shaft that is S-101-A. This engine is in a Coronado 27 sailboat and wasn't original to the boat. Did anyone find out more about this engine? Did anyone find parts for it? thanks |
BART SABINE
New member
Username: sailfish
Post Number: 2
Registered: 06-2006
| | Posted on Tuesday, June 13, 2006 - 04:19 pm: |
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I have a Gray Sea Scout in a Bristol 29 sailboat. Can't get the motor to run. Cleaned the Carb, Zenith 61, engine started and ran fine. Shut it down for an hour and best it will do is 800 rpm at full throttle. Cleaned Carb again replaced needle value and seat and still only 800 at full throttle. What else should I be doing? |
Lawrence T Wolfe
Senior Member
Username: larry_from_maryland
Post Number: 174
Registered: 07-2003
| | Posted on Wednesday, June 14, 2006 - 12:52 pm: |
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Those zenith carbs have a habit of collecting water around the main jet makeing the engine run rough and not able to picup speed. You can remove an ajustable jet needle and blow it out useing that hole.The real cure is to clean your tank and get a good filter. Try dry gas or a simmilar product. |
Bart Sabine
New member
Username: sailfish
Post Number: 3
Registered: 06-2006
| | Posted on Wednesday, June 14, 2006 - 02:38 pm: |
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We decided that perhaps the timing was the problem. In the process of checking that we discovered that two of the spark plugs were bad. We replaced those and the engine would not start at all. Next discoverd that two of the spark plug wires where in the wrong place on the distributor cap. Somehow the engine was running on two cylinders and when we replaced the plugs all cylinders were firing, but at the wrong time and it would not start. After correcting the wires, the engine fired up and ran beautifully. We speculate that when the engine was pulled in the boat yard to replace cutlas bearing that the wires somehow got switched. |
Bart Sabine
Member
Username: sailfish
Post Number: 4
Registered: 06-2006
| | Posted on Friday, June 16, 2006 - 09:37 pm: |
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where cn I find new spark plug wires for a Sea Scout |
Andy J
Visitor
| | Posted on Saturday, June 17, 2006 - 05:27 pm: |
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Ones from a 4 cyl car enine will work. |
william warner
New member
Username: irwin31
Post Number: 1
Registered: 01-2007
| | Posted on Sunday, January 14, 2007 - 04:35 pm: |
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I'm looking for any manuals i can buy on my Gray Marine Sea Scout 4 , 91cu
[email protected] |
Andrew Menkart
Moderator
Username: andrew
Post Number: 825
Registered: 11-2001
| | Posted on Sunday, January 14, 2007 - 05:20 pm: |
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William,
The Gray Marine Sea Scout is covered in the Maintenance Handbook shown on the MarineEngine.com site. |
JOHN DEBATES
Member
Username: cam_gear
Post Number: 9
Registered: 09-2006
| | Posted on Monday, January 15, 2007 - 11:23 am: |
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HI WILLIAM,
FOR SEA SCOUT 4-91 MANUALS FOR PARTS AND SERVICE TRY [email protected] OR CALL 630-485-5007
JOHN DEBATES |
Kenneth Guest
Member
Username: ken_guest
Post Number: 7
Registered: 03-2006
| | Posted on Friday, January 19, 2007 - 03:02 pm: |
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I HAVE A KERMATH SEA TWIN #C621150 AND WAS WANTING TO KNOW WHERE I CAN FIND A FUEL PUMP ASSEMBLY, I HAVE THE PUMP BUT THE LEVER THAT GOES FROM THE PUMP TO THE CAM LOBE IS MISSING |
Mick Dickson
Visitor
| | Posted on Thursday, February 01, 2007 - 01:50 pm: |
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Hello can anyone help me? I have a 2Cyl Kemath diesel engine fitted in my narrowboat in the UK.
Its Model No is 2-127 made in approx 1942.Ithink it is also known as a Kermath Hercules.She runs a treat,but i would like to know if any spares exist.Or any other info regarding its history.
Thanks. |
John Porretta
Visitor
| | Posted on Monday, January 07, 2008 - 11:18 am: |
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Hi
I have 3 old gray marine engines,4 cyl,gas.
1)model 4-112 serial# 711074-214m 1960's
2)model sea scout serial# 71140 s-s 1930's
3)model phantom 32 1930's
would someone help please,I donated these engines
to mystic seaport,They belonged to Ed Welles.
The irs is saying they are not worth anything .
So I need to know what they cost when they were new & what they cost in 2005 when i donated them.help please.Thanks,John Porretta ph860-235-7211 e-mail [email protected] |
Carroll D. Dove
Visitor
| | Posted on Sunday, June 03, 2012 - 01:13 pm: |
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I have a Gray Sea Scout 91.
Engine #C13050
Model #RDBS7
Serial #H3078
Does anyone know how old this engine is? |
Jim Anderson
Member
Username: jimanderson
Post Number: 17
Registered: 07-2011
| | Posted on Monday, June 04, 2012 - 12:19 am: |
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RE: Gray Marine 4-91 Sea Scout.
I think it is a 1942. Look around on the internet as Gray Marine published a 9 page letter in 1964 detailing years, serial numbers, etc.
Jim |
Jim Staib
Senior Member
Username: drrot
Post Number: 123
Registered: 09-2008
| | Posted on Monday, June 04, 2012 - 07:18 am: |
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The Graymarine chart is at http://www.finewoodboats.com/Gray.htm |
