Help, engine timing

[oliver28472]

You are probably going to get the flywheel off to really be able to inspect the key. After you take the nut off, you can take a big screwdriver and place it between the engine block and the flywheel and pull away from the block while tapping gently on the end of the crankshaft with a hammer. This always worked for me. If the key has a line on both sides replace it.

 

[redka]

oliver, thanks. Will give it a try tomorrow.
Do auto parts stores sell the keys?

 

[dqdave1]

Most auto parts carry the key. You will not be able to inspect the key without removing the flywheel. I would also inspect the spindle on the mower. With the belt off; compare the shafts movement ; if it is different; is spindle bent? Do the spindles have grease fittings? Grease them to see if it helps.

Hitting an object will result in a key being sheared or partly sheared; it is made of soft aluminium for a safety feature. If the key is not sheared, you may have more serious issues.

My money is on the flywheel key.

What engine is in the unit? If it is a Kohler Courage, I double my bet.
Dave

 

[xPosTech]

Unless it's a factory part don't get it at an auto parts. That is not a steel key, which they will sell you. The small engine key is an alloy designed to shear. Use a genuine Briggs or Kohler part. You can find them at Lowes, HD, etc.

Ted

 

[redka]

Thanks to both of you. Will try to get the flywheel off tomorrow and replace the key. It's a Briggs engine, and only three years old so not ready to junk it yet.
Just had another thought...would it be ok to do a small squirt of PB Blaster in the flywheel hole to help loosen it from the shaft before attempting to break it loose?

 

[xPosTech]

That always helps. I need to start buying that stuff by the case, I guess. Can never have too much.

Ted

 

[dqdave1]

It probably would not hurt but I have never used it, but I have sprayed the threaded portion before removing the nut( or should I say loosening the nut) I never have put a screwdriver or other item under the flywheel either. I have a lead hammer that I use , which does not require wood, because the lead will not hurt the shaft. You will be amazed how easy it will come loose (flywheel). It only requires one good sharp rap to loosen, even though to get that sharp rap, takes 3 or 4.
Good luck

After thinking about this; change the spark plug also.

 

[redka]

Running smooth now! You guys were right on. Got the flywheel off without a puller, and sure enough the key was slightly scarred. Put the new key in, put in a new sparklug(old one was badly fouled) put everything back on, fired it right up, and running smooth. I thank you all very much, and my son thanks you. Maybe I'll have the opportunity to pass it on.

 

[dqdave1]

Glad you got it running. I am sure your son is relieved also.

 

[elad]

Glad we could help. Call on us anytime. elad