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5hp B&S flathead head bolt torque?



 
 
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  #1  
Old September 29th 08, 08:03 PM posted to rec.crafts.metalworking
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Default 5hp B&S flathead head bolt torque?

Anyone have even a rough idea?
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  #2  
Old September 29th 08, 08:44 PM posted to rec.crafts.metalworking
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Default 5hp B&S flathead head bolt torque?

On Mon, 29 Sep 2008 12:03:03 -0700, Jim Stewart
wrote:

Anyone have even a rough idea?



Models 6B,60000, 8B, 80000, 82000, 92000, 94000, 110000,
100000, 130000, 5, 6, N, 8, 9: 140 inch pounds

Models 140000, 170000, 190000, 220000, 250000, 14: 165 inch
pounds

Those are from my Briggs & Stratton Manual. Hope you have
the model number handy I didn't see a quick cross for the
cubic inch to horse power numbers. The model number relates
to the cubic inches.
--
Leon Fisk
Grand Rapids MI/Zone 5b
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  #3  
Old September 29th 08, 08:52 PM posted to rec.crafts.metalworking
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Default 5hp B&S flathead head bolt torque?

Leon Fisk wrote:
... I didn't see a quick cross for the
cubic inch to horse power numbers. ...


The 130000 is 5 hp (140 in-lbs). Bob

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  #4  
Old September 29th 08, 10:58 PM posted to rec.crafts.metalworking
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Posts: 756
Default 5hp B&S flathead head bolt torque?

Thanks Leon and Bob.

-jim

Leon Fisk wrote:
On Mon, 29 Sep 2008 12:03:03 -0700, Jim Stewart
wrote:

Anyone have even a rough idea?



Models 6B,60000, 8B, 80000, 82000, 92000, 94000, 110000,
100000, 130000, 5, 6, N, 8, 9: 140 inch pounds

Models 140000, 170000, 190000, 220000, 250000, 14: 165 inch
pounds

Those are from my Briggs & Stratton Manual. Hope you have
the model number handy I didn't see a quick cross for the
cubic inch to horse power numbers. The model number relates
to the cubic inches.

  #5  
Old October 4th 08, 05:00 PM posted to rec.crafts.metalworking
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Posts: 791
Default 5hp B&S flathead head bolt torque?

about 35 ft lbs as I recall - I used to have a book "small engine repair" by
Briggs and stratton - but I lent it to someone and now I can't find it. you
may look around for that book.


"Jim Stewart" wrote in message
.. .
Anyone have even a rough idea?



** Posted from http://www.teranews.com **
  #6  
Old October 4th 08, 05:52 PM posted to rec.crafts.metalworking
WWS
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Default 5hp B&S flathead head bolt torque?

William Noble wrote:
about 35 ft lbs as I recall - I used to have a book "small engine
repair" by Briggs and stratton - but I lent it to someone and now I
can't find it. you may look around for that book.


"Jim Stewart" wrote in message
.. .
Anyone have even a rough idea?



B&S repair manual says 140 in/lbs for standard and Quantum 5hp engines.
Thats 11.6 ft/lbs.
I go 15 ft/lbs, but thats pushing it.


  #7  
Old October 5th 08, 02:59 AM posted to rec.crafts.metalworking
bw
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Posts: 50
Default 5hp B&S flathead head bolt torque?


"WWS" wrote in message
...
William Noble wrote:
about 35 ft lbs as I recall - I used to have a book "small engine
repair" by Briggs and stratton - but I lent it to someone and now I
can't find it. you may look around for that book.


"Jim Stewart" wrote in message
.. .
Anyone have even a rough idea?



B&S repair manual says 140 in/lbs for standard and Quantum 5hp engines.
Thats 11.6 ft/lbs.
I go 15 ft/lbs, but thats pushing it.


Correct. I use 14 footpounds with no problems. Thats COLD.
After replacing head gaskets, run the engine to operating temperature.
Then stop, allow to cool to room temp and torque again. Just takes time to
do it right.

Test the head bolts tightened at the factory sometimes, the low end engines
are often wildly out of spec.


 




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