| Author |
Message |
    
Keith Ainsworth
New member
Username: kainsworth
Post Number: 1
Registered: 08-2010
| | Posted on Friday, August 13, 2010 - 12:21 pm: | 
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About 25 years ago I rebuilt a Stuart engine, I have the manual for it but I am not sure if it is a P4 or P5.It is water cooled, single cylinder. I had it running but have not touched it since, reading these pages has rekindled my interest now that I am retired. Are there many of these engines still around and when did they go out of production.
Keith Ainsworth |
George Martin
Visitor
| | Posted on Saturday, August 14, 2010 - 06:41 am: |
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Six head bolts are all P5. 4 head bolts it could be a P4 or P5. Look under the paint on head to see a No 1067 its a P5, dont know whats on a P4. |
David Ball
Member
Username: daveincaol
Post Number: 11
Registered: 06-2010
| | Posted on Saturday, August 14, 2010 - 03:59 pm: |
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Hello Keith
I don't know the number of engines that still exist, but there is an active interest in them.
A group exists on Yahoo by the name of STINFOEXCHANGE. They have several files of data available for group members to view.
Dave B |
John Gilks
Visitor
| | Posted on Thursday, August 19, 2010 - 02:33 pm: |
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Hi
I have a 1948 P5 4HP
I know that this is not right, but . . .
In 1948 the P4 was superceded. Initially ST used the same block & separate, 2 piece expansion chamber as on the P4, but uprated the performance to 5HP and redesignated it P5
My engine has number 14778 |
David E. Schofield
Visitor
| | Posted on Sunday, August 22, 2010 - 06:02 am: |
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Hi Keith,
Stuart Turner finished making the marine engines in 1976. Fairways took that side over but was wound up two or three years ago. Marlex brought most of the stock. However I have a reasonable level of bits for the single cylinder engines including full top end gasket sets. I also have restored engines for sale. |
David E. Schofield
Visitor
| | Posted on Sunday, August 22, 2010 - 06:07 am: |
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Keith,
I have a list showing all ST engines manufacturing dates and series. Let me have your engine number and I will give you the approx. date of build. |
touchard philippe
New member
Username: fifi_la_bricole
Post Number: 2
Registered: 08-2010
| | Posted on Monday, August 23, 2010 - 04:10 am: |
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hello my engine is aR3MC number 46R372 do you know the year of product? can i find atechnic manual? i need patch on the cylinder against freeze thank you .sorry about my very bad english |
seaman
Visitor
| | Posted on Tuesday, August 24, 2010 - 09:48 am: |
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I have rebuilt my single cylinder P5 but it will not run. I have put ptrol down the plug and it runs a few turns but wont run under its own steam so to speak . All jets are clear.A friend suggests crankcase sealing as a posssible fault. Any suggestions ?
Cheers D.L. |
David Ball
Member
Username: daveincaol
Post Number: 14
Registered: 06-2010
| | Posted on Tuesday, August 24, 2010 - 12:37 pm: |
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Hello Touchard
ST made about 60 R3MCs per year ending in Sept 1977. The serial number on your engine suggests it was built in the 2nd half of 1976.
Hello seaman
This worked for me. Take out the plug. Turn the engine over. Air should be compressed under the piston. This should release with a 'pop' as the piston rises past the transfer port. Is the c/case drain plug secure?
If you are sure of your carb. settings then consider the old truth that the majority of carb. problems are caused by the ignition.
Good luck and let's hear more.
Dave B |
David Myers
Senior Member
Username: dave_myers
Post Number: 85
Registered: 11-2006
| | Posted on Tuesday, August 24, 2010 - 07:32 pm: |
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Hello Seaman,
As suggested it my be Crankcase sealing but by what you describe.. Check and make sure you have the Piston in the correct way around. The Baffle (or Ramp) high side must face the inlet side of the cylinder. Not the Exhaust side. If wrong way around then it will not run, other than the way you have described.
Hope this is of help. Dave |
jim mcalpine
New member
Username: plasticshed
Post Number: 1
Registered: 02-2010
| | Posted on Thursday, August 26, 2010 - 03:53 am: |
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HI
Can anyone help me with the dating of my S T engines a R2 PUMPER serial no 37590 also the H.P. as the plate is blank.
A type N serial no 6134. and any information would be most helpful.
thank you |
steven john page
Advanced Member
Username: fairbanks
Post Number: 37
Registered: 12-2007
| | Posted on Thursday, August 26, 2010 - 03:21 pm: |
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Hi Jim, your N series st is 1932, and your pumper is 1958. regards steve |
jim mcalpine
New member
Username: plasticshed
Post Number: 2
Registered: 02-2010
| | Posted on Friday, August 27, 2010 - 02:18 am: |
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Hi Steve
Thanks for that i appresiate it
yours Jim |
