I started having cranking issues with my 145 a couple of years ago. At first when I turned the ignition switch sometimes instead of the engine whirling over it would grunt the starter and then stop. I thought it was the safety switch on the brake and pushing the brake farther in or letting it out some the starter would finally engage. But that method was hit or miss and eventually the problem got worse,
I replaced the brake switch and problem persisted.
Since this mower has six or seven safety switches was having trouble locating and jumping them out to test them.
I decided to go directly from the battery to the solenoid, same result, a starter grunt then nothing. I checked the voltage readings at all of the terminals they were all within range.
Thinking I would jump off of my truck to eliminate the battery but the same result.
Next I decided to jump directly to the starter terminal, same result actually pulling down the truck idle.
Someone told me that some of the bigger engines had a relief valve to relieve cranking pressure during starting. He said if it in fact had one it could be stuck and the compression stroke was too much to overcome. I then noticed that the engine is very hard to turn over by hand.
If I remove one spark plug the engine spins freely.
A few days ago I finally got it started and moved the lawn , about 1 1/2 acres, I pulled into the garage and now it is leaking oil.
This mower is about 8 years old, it has a 22 hp B&S engine, I do a good maintenance program but to no avail.
This mower has been a problem forever.
If anyone has an answer to this problem I appreciate the help.
I replaced the brake switch and problem persisted.
Since this mower has six or seven safety switches was having trouble locating and jumping them out to test them.
I decided to go directly from the battery to the solenoid, same result, a starter grunt then nothing. I checked the voltage readings at all of the terminals they were all within range.
Thinking I would jump off of my truck to eliminate the battery but the same result.
Next I decided to jump directly to the starter terminal, same result actually pulling down the truck idle.
Someone told me that some of the bigger engines had a relief valve to relieve cranking pressure during starting. He said if it in fact had one it could be stuck and the compression stroke was too much to overcome. I then noticed that the engine is very hard to turn over by hand.
If I remove one spark plug the engine spins freely.
A few days ago I finally got it started and moved the lawn , about 1 1/2 acres, I pulled into the garage and now it is leaking oil.
This mower is about 8 years old, it has a 22 hp B&S engine, I do a good maintenance program but to no avail.
This mower has been a problem forever.
If anyone has an answer to this problem I appreciate the help.
145 automatic cranking issues.
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