QuestionHello,
Thank you John. The engine is a Briggs & Stratton 6HP Model #12H802 Type #2677E1 Code #98110558.
I have not heard of a valve lash setting before, so any instruction you can provide around how to change that would be much appreciated.
Thank You!
John Laquidara
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Followup To
Question -
I have a Snapper Self Propelled Mower (Model # P216012) with a 6HP Briggs & Stratton engine. When cold, the lawn mower always starts on the first pull. The problem occurs when I attempt to re-start it after emptying the grass catching bag. If it has been running for 10-15 minutes it is next to impossible to re-start it. It needs to sit for a couple of hours before I can start it again. What could be causing this?
Could it be getting flooded, and if so what can I do about it?
Thank you,
John
Answer -
Hello John:
1- The Valve Lash is Too Tight. The Valve Lash May be Too Tight when the Engine Gets Hot. Send me the Engine Model Numbers and I can Give you the Setting for the Valve Lash. 2- the Ignition Module/Coil is Going Bad. When you Try t Restart after Shutting the Mower Down Check for Spark at the Sark Plug. If no Fire, then the Coil is Bad. Im Leaning towards the Valve Lash. Hope this Helps. Let me know what Happens, Please.
Good Luck
Respectfuly
John
Answer Hello John:
The Valve Lash is the Clearance Between the Valve Stem and the Valve Tappet. Go to http://www.odref.com/briggsandstratton/model-12/12J800-ms0991-0603.pdf. This is the Breakdown for your Engine. If you Look the Parts Numbered 33 and 34, these are the Valves. Part Number 45 is the Tappet. To Adjust the Valve Lash (clearance between the Tappet and Valve Stem) you must Remove the Cylinder Head and the Crankcase Vent. Remove the Valve Keepers and the Valve will come out of the Block. The Valve Stem must be Ground Down Small Amounts at a Time and Checked with a Feeler Gauge until the Proper Clearance is Reached (.013 intake and .017 exhaust seems to work the Best). This Procedure I would Suggest be Performed by a Repair Shop. Hope this Helps. Let me know what Happens, Please.
Good Luck
Respectfully
John
