QuestionProblem 1: No I haven't checked compression. I read the following this morning elsewhere on the net:
"For Briggs & Stratton engines, the manufacturer simply recommends spinning the crankshaft by the flywheel in the opposite from the normal direction with the normal spark plug installed. A sharp rebound (as it compresses the trapped air since the compression release mechanism is not active in reverse) indicates good compression. Little or no rebound indicates low compression and need for service."
Do you agree with that or should I get a gauge?
Do I need to get a spark tester to test for spark? I have heard of other methods but I am not familiar on how to do it.
Thanks!
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Followup To
Question -
Hi,
Briggs & Stratton 18.5HP
Model: 42A707, Type: 2653E1
Problem 1: I have not been able to get this mower to start this year. It cranks, but will not start. Here is what I have done:
2 new spark plugs
new battery
new air filter
rebuilt carb
new fuel filter
fresh gas
Problem 2: When the engine is cranking, I will sometimes intermittently get a "squeal, screeching" noise. Is that a bad starter?
Problem 3: Somehow while trying to get it to start I have developed a fairly significant oil leak from the bottom of the engine. The oil is pooling up on top of the stack pulley. I presume this is the lower seal? What is involved with replacing the lower seal.
I know this is alot and I don't want to abuse this service. If you can give me some direction on any of the above it will be very appreciative.
Answer -
Hello John:
Problem 1: 1- Have you checked for Fire at the Plugs? 2- Have you Checked the Compression? Problem 2: 1- Remove the Belts from the Engine Pulley. Do you still have the Screeching/Squealing Noise? If Yes, the Starter is Bad. If No, there is a Quill or Idler Pulley going Bad. Problem 3: Remove the Stack Pulley and Take a Cotter Pin Remover and Remove the Lower Seal. Take a Piece of Pipe the Same Size as the Seal and Tap the New Seal in Place. Replace the Stack Pulley. Hope this Helps.
Good Luck
Respectfully
John
Answer Hello John:
No need to get a Gauge. The Test you mentioned is the one I was asking about. Sorry, I forget at times not everyone know how to use that method to test the Engines with Compression Release. To Test the Spark at the Plug: Remove the Spark Plug. Take a piece of Wire and Wrap around the Plug Threads. Attach the Other End of the Wire to the Engine with a Pair og Vice Grips. Turn the Engine and see if the Plug is Firing. If No, Check the Safety Switches. Hope this Helps.
Good Luck
Respectfully
John
