Small Engines (Lawn Mowers, etc.): torque specs, bolt torque specs, head bolt torque specs


Question
QUESTION: sears m#917.2736403 18.5hp,what are the head bolt torque specs?


Thank You
Mike

ANSWER: Hello Mike:

>>Sorry for the Delay. I have been Unable to Answer Questions Due to Health Issues. Thanks for Understanding.
>>You can Locate the Correct Specification (Bolt Torque, Valve Clearances, ect) for this Engine at this Site Addy; http://outdoorpowerinfo.com/engine_specs/ and Select your Engines OEM and the Specification Chart you Require.
>>The Head Torque should be 230 Inch Pounds.
>>If you Hit a Snag or this Does Not Correct the Problem,  I Hope to be Here if You Require More Assistance. Hope this Helps. Let me Know What Happens, Please. May the All Mighty Bless You and Yours. Be Safe and Happy. Thanks.

Good Luck

Respectfully

John

PS: I am Allowed to Answer 5 Questions a Day. If you See I am Maxxed Out, then Try Submitting your Question at or Just After 8pm EST (US). My New Day Starts then. Comments and Ratings are Greatly Appreciated. Thanks.

Respectfully

John


---------- FOLLOW-UP ----------

QUESTION: Sears M#917.2736403 B%26S 18.5 HP 31p777  0348E1  040617ZD
Sucked screw from carburetor into engine. Removed head and found two  small pieces of of screw and removed them.
Cylinder did not feel scared although the head and piston were nicked up but ok.Replaced the head with new head gasket and set the valves at intake .005 exaust at .009.
Starts easy and runs very smooth although it smokes under load (when blades are engaged and full throttle).
Found oil in the tube that runs from the fill tube to the fuel pump.
New oil and filter 1 %261/2 quarts of 10w30.
What is my problem?

Thanks Mike

ANSWER: Hello Again Mike:

>>Did you Clean out the Crankcase Breather/Vent?
>>If the Engine Over Revved, then the Compression Rings may have unseated. Operate the Unit for a Few Hours and the Smoking might Clear up when the Rings re-seat.
>>If you Hit a Snag or this Does Not Correct the Problem,  I Hope to be Here if You Require More Assistance. Hope this Helps. Let me Know What Happens, Please. May the All Mighty Bless You and Yours. Be Safe and Happy. Thanks.

Good Luck

Respectfully

John

PS: I am Allowed to Answer 5 Questions a Day. If you See I am Maxxed Out, then Try Submitting your Question at or Just After 8pm EST (US). My New Day Starts then. Comments and Ratings are Greatly Appreciated. Thanks.

Respectfully

John

---------- FOLLOW-UP ----------

QUESTION: well its me again.

I have run the mower for about four hours now.
When I first start it and mow it smokes for about ten minutes and then it will stop.When I idle it down for a few minutes and then resume mowing it will start smoking and after about five minutes it will quit.It has plenty of power.There is a hose that runs from the oil filler tube to the fuel pump.The fuel pump has a small vent on it and oil will drip from it.Also the lifters have a rattle to them although they are set at the specs you gave me.
Thanks Mike
ps.I really appreciate your help especially since you are a little under the weather.

Answer
Hello Again Mike:

>>Thanks for the Kind and Good Words. I Hope to be Better in a Few Weeks.
>>The Oil Dripping from the Fuel Pump Vent Usually Indicates a Dirty/Bad Crankcase Breather/Vent.
>>Have you Cleaned/Replaced the Crankcase Vent?
>>Did you Check the Block and the Head for being Warped? Even Torquing the Head Bolts, a Warped Head or Block Surface will still Allow the Head Gasket to Leak and the Engine to Smoke as you Described.
>>What is the Condition of the Valve Stems and the Valve Guides? If the Valve Stem or Valve Guide is Worn, then you will have Oil Smoke Until the Engine Reaches Operating Temperature (this depends on how Bad the Stem or Guide is Worn).
>>Lastly, Are you Sure the Cylinder was Not "out of Round"?
>>You can View a Breakdown/IPL of the Engine at this Site Addy; http://www.briggsandstratton.com/maint_repair/manual_and_more/ and Enter the Model Numbers  and the Type Numbers(XXXXXX-XXXX-XX) in the Appropriate Box and Click GO. Then Select Download PDF.
>>If you Hit a Snag or this Does Not Correct the Problem,  I Hope to be Here if You Require More Assistance. Hope this Helps. Let me Know What Happens, Please. May the All Mighty Bless You and Yours. Be Safe and Happy. Thanks.

Good Luck

Respectfully

John

PS: I am Allowed to Answer 5 Questions a Day. If you See I am Maxxed Out, then Try Submitting your Question at or Just After 8pm EST (US). My New Day Starts then. Comments and Ratings are Greatly Appreciated. Thanks.

Respectfully

John