Rattling noise when rotating flywheel

[bentrim]

The intake valve will lose clearance and the valve will open slightly. So it doesn't matter where your main focus is on. If you do focus on the push rod side it will move first until the clearance of the valve setting is gone then the rocker will get tight and move the valve.
Hope that is what you did not u8nderstand.

 

[JimP2014]

The intake valve will lose clearance and the valve will open slightly. So it doesn't matter where your main focus is on. If you do focus on the push rod side it will move first until the clearance of the valve setting is gone then the rocker will get tight and move the valve.
Hope that is what you did not u8nderstand.

Thank you for the reply dark here now but tomorrow morning I can get going on that flywheel is torqued down to I think 90 90 foot pounds and it's entirely possible because that rocker arm was extremely loose then when I started the engine it was because of that and not so much because of that bump that might be missing like you're saying I don't know but tomorrow morning but thanks for the additional information.

Jim

 

[JimP2014]

Thank you for the reply dark here now but tomorrow morning I can get going on that flywheel is torqued down to I think 90 90 foot pounds and it's entirely possible because that rocker arm was extremely loose then when I started the engine it was because of that and not so much because of that bump that might be missing like you're saying I don't know but tomorrow morning but thanks for the additional information.

Jim

But the one thing that I really should mention because to figure something out you have to know all the background or the problem what was going on is it it was smoking like white smoke coming out of the muffler area and then when I shut down the engine there would be smoke coming out of the intake white smoke so and I thought I was losing power but I'm not positive on that but that's why I got the whole thing apart.

Jim

 

[sgkent]

in for a penny in for a pound

 

[JimP2014]

So I think this video shows that little bump and that would prove the compression mechanism is working.

The video was upside down the intake valve is really on the bottom.

 

[bentrim]

But the one thing that I really should mention because to figure something out you have to know all the background or the problem what was going on is it it was smoking like white smoke coming out of the muffler area and then when I shut down the engine there would be smoke coming out of the intake white smoke so and I thought I was losing power but I'm not positive on that but that's why I got the whole thing apart.

Jim

White/blue smoke will be produced by oil. If you inspect the gasket especially the area that borders the push rod cavity you should see a place where it is "blown out" This allows compression into the crankcase.Since the breather cannot handle the extra blow by it forces oil into the tube that connects the breather to the air inlet housing under the air filter. If you look closely at the inlet housing and the carburetor bore you should see an oil residue. If you had removed the hose from the inlet it would have had heavy blowby and possibliy even oil from it. Yes the distance between the head bolts makes it a common problem on the Briggs engines. Briggs is supposed to have released new head bolts and increased the torque to 250 inch pounds, see attachment.
FYI if the 1st two numbers on the valver are 28 - 31 - 33 flywheel torque is 100 pound feet

 

[JimP2014]

So this is the engine running there was major smoke and it was most likely coming from when I took the valve cover gasket off so I ran it on say idle for about 10 minutes it seems to be okay but this is the part that I just can't predict what'll happen when the machines actually in use + it's just frustrating when someone says how old is that thing and then the implication is get another one well I'm of the opinion you should be able to identify the problem and just don't say well it's old or some other BS there has to be a reason so I don't know after this. But I definitely will read the post above that I really can't see right now.

Jim

 

[JimP2014]

White/blue smoke will be produced by oil. If you inspect the gasket especially the area that borders the push rod cavity you should see a place where it is "blown out" This allows compression into the crankcase.Since the breather cannot handle the extra blow by it forces oil into the tube that connects the breather to the air inlet housing under the air filter. If you look closely at the inlet housing and the carburetor bore you should see an oil residue. If you had removed the hose from the inlet it would have had heavy blowby and possibliy even oil from it. Yes the distance between the head bolts makes it a common problem on the Briggs engines. Briggs is supposed to have released new head bolts and increased the torque to 250 inch pounds, see attachment.
FYI if the 1st two numbers on the valver are 28 - 31 - 33 flywheel torque is 100 pound feet

Briggs & Stratton recently changed to a new design cylinder head bolt for model 210000, 310000, and 330000 OHV engines. The new bolts require a higher torque during installation. At the same time, we have modified the bolt tightening sequence to reduce chances of head warpage at the higher torque settings. To prevent confusion, use only the new tightening sequence and new torque value when servicing both older and newer designs, including the model 280000 OHV. The following procedure will replace what is currently shown in repair manual 276781 Single Cylinder OHV Air-Cooled Engines. 1. Ensure cylinder and head mating surfaces are clean and dry. 2. Using a new head gasket, install the cylinder head on the cylinder and start the screws by hand. 3. Step-torque the screws in the sequence shown below until the final torque is achieved. Final torque is 250 lbin (28.2 Nm).

OK so Therefore, 250 inch-pounds is equal to 20.83 foot-pounds.

And I was at 100 ft. lbs with my torque wrench this is good.

That 20.83 foot lbs exceeds current torque wrench but interesting - thanks! I read previously it was 18.3 ft. lbs. I wonder if the change was prompted by consumers constantly blowing head gaskets?

And I just bought 2 of these and currently using one of them:

Briggs and Stratton Genuine 592244 ( ~$8/ea. )Screw Replaces 94565 93211 691651 691651 <--- using the 592244 in lower left position when facing valve cover.​

Thanks BenTrim,
Jim
P.S. "White/blue smoke will be produced by oil. If you inspect the gasket especially the area that borders the push rod cavity you should see a place where it is "blown out" This allows compression into the crankcase.Since the breather cannot handle the extra blow by it forces oil into the tube that connects the breather to the air inlet housing under the air filter. If you look closely at the inlet housing and the carburetor bore you should see an oil residue. If you had removed the hose from the inlet it would have had heavy blowby and possibliy even oil from it." - I will have to re-read this, I don't get it right now.

 

[JimP2014]

Briggs & Stratton recently changed to a new design cylinder head bolt for model 210000, 310000, and 330000 OHV engines. The new bolts require a higher torque during installation. At the same time, we have modified the bolt tightening sequence to reduce chances of head warpage at the higher torque settings. To prevent confusion, use only the new tightening sequence and new torque value when servicing both older and newer designs, including the model 280000 OHV. The following procedure will replace what is currently shown in repair manual 276781 Single Cylinder OHV Air-Cooled Engines. 1. Ensure cylinder and head mating surfaces are clean and dry. 2. Using a new head gasket, install the cylinder head on the cylinder and start the screws by hand. 3. Step-torque the screws in the sequence shown below until the final torque is achieved. Final torque is 250 lbin (28.2 Nm).

OK so Therefore, 250 inch-pounds is equal to 20.83 foot-pounds.

And I was at 100 ft. lbs with my torque wrench this is good.

That 20.83 foot lbs exceeds current torque wrench but interesting - thanks! I read previously it was 18.3 ft. lbs. I wonder if the change was prompted by consumers constantly blowing head gaskets?

And I just bought 2 of these and currently using one of them:

Briggs and Stratton Genuine 592244 ( ~$8/ea. )Screw Replaces 94565 93211 691651 691651 <--- using the 592244 in lower left position when facing valve cover.​

Thanks BenTrim,
Jim
P.S. "White/blue smoke will be produced by oil. If you inspect the gasket especially the area that borders the push rod cavity you should see a place where it is "blown out" This allows compression into the crankcase.Since the breather cannot handle the extra blow by it forces oil into the tube that connects the breather to the air inlet housing under the air filter. If you look closely at the inlet housing and the carburetor bore you should see an oil residue. If you had removed the hose from the inlet it would have had heavy blowby and possibliy even oil from it." - I will have to re-read this, I don't get it right now.

I just inspected around the breather tube and the fuel filter and going back towards where the steering wheel is and I noticed dirt particles that had oil on them. I am confused as to what this means I am to do next. This is from before, meaning I am not sure if I fixed this in the short 10 minute test I did, but I cleaned all that stuff off. But if it happens again what does that mean?

Thanks,
Jim