Search results

Gasket was thin in this area on the head, made me think it was cracking...I’m not sure

Looks like the head has cracks in it...where can I get a new quality head? Worth replacing? Also signs of cracking in the pan...something to worry about?

Valves are operately correctly. Went ahead and pulled the head to do the gasket. Going to check the compression relief as well while I am already working on it. We’ll see what I find tomorrow....

The compression relief hasn’t been working from time to time on start up. It will just half turn and stop. Have to cover the intake and get the engine gets turning fast enough to crank before I release. Wonder if this is causing the intake valve to stick open?? Thank for the help.

Briggs 19.5 hp Model: 31P6770132B1; need anything else?

Sounds like she’s getting opened up

I adjusted the valves and the flywheel key is not sheared.

Little backstory; had a bad carburetor blowing fuel out the intake. Ordered a new one and put it on and it stopped blowing fuel out the intake and ran fine. Drove around the yard 2 or 3 times and parked it. Went back to it about 2 hours later to run again and mow and it would not start again...

It comes out the intake too. I checked the oil after my last attempt to start it and it wasn’t mixed. I think after trying to start it for an extended time it is flooding into the oil. I’m going to just get a new carb ordered, it’s only around $40

here is a video of the valves. Looks okay to me, but I’m still new to this. As you can see, fuel mixed with the oil again, I’m going to assume it will need a new carb?

It all started when the fuel pump went out (checked and no fuel coming out of pump) replaced it and wouldn't start. Was doing the 1/2 turn and stop deal. Went to adjust the valves and realized it had dumped gas into the oil as well. Did an oil change and read online that the 1/2 turn and stop...

I also wonder if the intake valve is sticking open if the compression relief is bad. This would allow fuel back out the intake, correct?

I did see that, which made me think the compression relief was still working. But, was still 1/2 turn and locking down every now and then. Makes me think its working sometimes and not others. Covering the intake to stop compression gets it going enough to were I can release and it cranks fine.

Can be a lot of different things, pictures would help diagnose it.

I may eventually have to open it up and see as well. Trying to eliminate everything before doing so.

The engine has a compression release valve on the cam that helps with starting. (I had a problem with the engine appearing to have a slow start, similar to a bad battery, it would turn 1/2 revolution and stop). It has a new battery and starter performed on the bench. I found online that covering...

What does it mean if the rocker arms are not traveling the same distance? Valve not seating all the way?

Everything visually looks okay in the carb. May just get a rebuild kit and see how it goes...

Briggs and Stratton 19.5 hp engine. Blows fuel out the intake when trying to start, never starts. Have taken the carb apart 2 times and cleaned, no change. It do believe it has a bad decompression valve (it locks up when trying to start and I have to block off intake with a piece of carboard to...