Briggs Intek 20HP Using Oil

[Mad Mackie]

Is the valve cover on the cylinder in question filling up with oil?
Have you checked to see if the oil return in the cylinder head is clear so the oil can go back to the crankcase?
Also I would make sure that you have the correct dipstick and fill to just below the high level mark, run the engine to warm it up and recheck. You may be overfilling it if you put in the amount of oil that is specified which is a dry engine fill amount.
Are the cooling fins on the cylinders clean?

 

[Mr. Shamrock]

Is the valve cover on the cylinder in question filling up with oil?
Have you checked to see if the oil return in the cylinder head is clear so the oil can go back to the crankcase?
Also I would make sure that you have the correct dipstick and fill to just below the high level mark, run the engine to warm it up and recheck. You may be overfilling it if you put in the amount of oil that is specified which is a dry engine fill amount.
Are the cooling fins on the cylinders clean?

It was not the last time I adjusted the valves. I haven't checked the return. I have to think the dipstick is correct because when I do an oil change and add 64 ounces it puts it right on the mark. The cooling fins and entire engine is very clean. I am going to pull the valve covers again and check. I was able to get the oil, filter, and new plugs today, but with the in laws in town I didn't get a chance to mess with it yet. I really appreciate all the info and idea's!!!!

 

[Mad Mackie]

There are three groups of numbers on a Briggs engine. Engine model, Type, and Code. Write these numbers down and go to the Briggs & Stratton web site, click on support, type in the engine model and type to find the parts manual for your engine. It is in pdf format and easily downloaded and stored in the "my documents" on your computer or a flash drive for future reference if you use Windows. There are B&S service manuals also available but must be purchased at a power equipment dealer or on line.

 

[Mr. Shamrock]

There are three groups of numbers on a Briggs engine. Engine model, Type, and Code. Write these numbers down and go to the Briggs & Stratton web site, click on support, type in the engine model and type to find the parts manual for your engine. It is in pdf format and easily downloaded and stored in the "my documents" on your computer or a flash drive for future reference if you use Windows. There are B&S service manuals also available but must be purchased at a power equipment dealer or on line.

Thanks - that is where I ordered the crankcase breather, intake gaskets, and oil collector. It definitely makes it easier to visualize everything. Their shipping was quick too.

Happy Thanksgiving to everyone!

 

[reynoldston]

RobertBrown the engine and transmission are two separate units so its not going between the two. Reynoldston the briggs does use a seal on the intake valve.

I have never seen valve seals on a small engine, but was wondering if something after market? Never tryed or looked into it but just hoping for a easy fix for oil consumption. Just a stab in the dark??

 

[Mr. Shamrock]

It does have one according to the parts diagram.

 

[reynoldston]

It does have one according to the parts diagram.

I said aftermarket so it won't be in any parts diagram, but also doubt if there is such a thing. I would also say no oversize valve stems or replaceable valve guides. I would say if the valve guides are shot it would be new head time unless a machine shop can repair them? I know when I was working in truck repair we would repair valve guides a lot. Now that I am just doing small engine repair it is just something I haven't ran across.

 

[Briggs92]

You won't get an accurate compression reading because of decompression. There is no such thing as valve seals it is valve seats which is metal on metal the edge of the valve head on the head

 

[reynoldston]

You won't get an accurate compression reading because of decompression. There is no such thing as valve seals it is valve seats which is metal on metal the edge of the valve head on the head

I would guess you don't know what valve seal are. They are a rubber type seal that goes on the rocket end of the valve under the valve retainer and spring. You will find them on most all car and truck engines. What they do is prevent oil from running down valve stem into the combustion chamber. This has nothing what so ever to do with the valve seats in the head. When the intake valve is open and drawing in fuel there is also a vacuum under the head of the valve. This vacuum will draw oil into combustom chamber if the valve guide is worn and too loose.

 

[Briggs92]

Sorry I misunderstood. For some reason I thought you guys were thinking that there was a seal where the seat is. What is the model and type of this engine? I can find out if it has valve seals