Export thread

What's missing

#1

R

Rainbowjohn

clean thread, something has fell out but don't know what. Next to starter motor.
Problem i have is mower only works for 5 or 10 mins then it stops.

Attachments









#2

S

slomo

Rainbowjohn said:
mower only works for 5 or 10 mins then it stops.
Click to expand...
Is the block overheating?

Load test the ignition coil.

Fuel tank holding grass, grit and dirt?


#3

R

Rainbowjohn

slomo said:
Is the block overheating?

Load test the ignition coil.

Fuel tank holding grass, grit and dirt?
Click to expand...


#4

R

Rainbowjohn

Block doesn't get chance to get hot.
Tank clean and new see thru filter.
Will check coil, thanks.

.


#5

R

Rainbowjohn

Rainbowjohn said:
Block doesn't get chance to get hot.
Tank clean and new see thru filter.
Will check coil, thanks. Where is low engine oil sensor ?
Click to expand...

Rainbowjohn said:
.
Click to expand...


#6

H

hlw49

Got to figure out why it is quitting. No fire no fuel. No compression.


#7

M

MParr

Nothing has fallen out next to the starter motor. The blower cover and shielding isn’t positioned correctly.
Take the blower cover off and clean everything good. Check all of the wiring connections.Put the blower cover back on. Pay close attention to the tin shields on the side of the engine. The tin shield next to the starter is out of place. It should be tucked into the blower shield. Those blue wires should be in the slot of the tin shield.
You either have a fuel or electrical problem.
Is the oil level correct?


#8

S

slomo

Rainbowjohn said:
Tank clean and new see thru filter.
Click to expand...
Did you get your reading glasses on if required, and stare into the bottom of the tank? Or just look at the outside of the tank? Really look into the lowest part of the tank. EVERY tank on Earth will have some kind of trash in it. Unless you just rolled this off a dealer floor?

I'm working on one now. Guy bought a new machine. Used a handful of times then passed away. Son in-law has it now. He's used it 3 times. I looked into the tank. Yup found dirt and grass in the bottom. This is essentially a new mower.


#9

S

slomo

Rainbowjohn said:
Block doesn't get chance to get hot.
Click to expand...
5 minutes is enough time to fully heat an air cooled engine. Try to keep your hand on the head.

Usually when an engine dies say 5-30 minutes later, it's a lack of fuel delivery or a weak coil that when hot peters out creating weak spark. As in you need to load test the ignition coil. Take an old spark plug. Gap it super wide at 1/4", crazy wide. Check for spark. Could be overheating also.


#10

S

slomo

Have you ever, removed the top engine cover and looked at the block cooling fins for grass, oil, grit, mice and their nests and the like? Did you know that one scalping session can clog said fins and cause overheats? Did you know this is in your engine manual as a yearly item as in a MUST DO?


#11

S

slomo

Lower part of your block is FILTHY. Pull the engine cover and clean that mud pit out. Must be a Saturday Night mud bog special.

1653658838196.jpeg


#12

S

slomo

MParr said:
Nothing has fallen out next to the starter motor. The blower cover and shielding isn’t positioned correctly.
Take the blower cover off and clean everything good. Check all of the wiring connections.Put the blower cover back on. Pay close attention to the tin shields on the side of the engine. The tin shield next to the starter is out of place. It should be tucked into the blower shield. Those blue wires should be in the slot of the tin shield.
You either have a fuel or electrical problem.
Is the oil level correct?
Click to expand...
Nice catch on the tin air ducting shields MParr. Spot on as usual sir.


#13

StarTech

StarTech

Could also be something to do with the electric choke. Just depends on how the engine dies.

Currently Briggs hasn't put an IPL for this engine but said to use the 31R577-0033-B1 for most parts except for the carburetor.

I asking Briggs what is the purpose of the snap switch in the image.


#14

T

Tinkerer200

Welcome,
Walt Conner


#15

H

hlw49

slomo said:
Have you ever, removed the top engine cover and looked at the block cooling fins for grass, oil, grit, mice and their nests and the like? Did you know that one scalping session can clog said fins and cause overheats? Did you know this is in your engine manual as a yearly item as in a MUST DO?
Click to expand...
Just got a mouse nest out of one today. I hate meices to pieces. Cleaned lots of them out of engines.


#16

R

Rainbowjohn

MParr said:
Nothing has fallen out next to the starter motor. The blower cover and shielding isn’t positioned correctly.
Take the blower cover off and clean everything good. Check all of the wiring connections.Put the blower cover back on. Pay close attention to the tin shields on the side of the engine. The tin shield next to the starter is out of place. It should be tucked into the blower shield. Those blue wires should be in the slot of the tin shield.
You either have a fuel or electrical problem.
Is the oil level correct?
Click to expand...
Yes oil level is correct but where is oil level sensor ?


#17

R

Rainbowjohn

hlw49 said:
Just got a mouse nest out of one today. I hate meices to pieces. Cleaned lots of them out of engines.
Click to expand...
All clean under engine cover, no grass or mice.


#18

StarTech

StarTech

Rainbowjohn said:
Yes oil level is correct but where is oil level sensor ?
Click to expand...
There is no oil level sensor.

The switch in the picture that I asked Briggs is a temperature operated one and would be related to the choke electric solenoid.
1653733264643.png
With running only 5-10 minutes it is more likely the ignition coil failing or fuel supply.


#19

S

slomo

Rainbowjohn said:
All clean under engine cover, no grass or mice.
Click to expand...
Really? No oil leaks attracting grass and dirt either, all over the block and fins? Even under the air directing pan that goes around the block? Behind your muffler or any other areas?

This must be a brand new or hardly used mower. But wait, the included picture, the lower block is filthy. Don't think your comment is accurate sir. I bet a cold beer that block is grungy.

Either you don't know where or what the top engine cover is or are calling the top side of the cover grass and mice free. Look UNDER the top cover. Look for some cooling fins.





#20

S

slomo

Crack the fuel tank cap when it dies. Maybe your cap is not venting.


#21

R

Rainbowjohn

slomo said:
Crack the fuel tank cap when it dies. Maybe your cap is not venting.
Click to expand...
Yes I tried that thanks.


#22

R

Rainbowjohn

slomo said:
Really? No oil leaks attracting grass and dirt either, all over the block and fins? Even under the air directing pan that goes around the block? Behind your muffler or any other areas?

This must be a brand new or hardly used mower. But wait, the included picture, the lower block is filthy. Don't think your comment is accurate sir. I bet a cold beer that block is grungy.

Either you don't know where or what the top engine cover is or are calling the top side of the cover grass and mice free. Look UNDER the top cover. Look for some cooling fins.



Click to expand...

slomo said:
Is the block overheating?

Load test the ignition coil.

Fuel tank holding grass, grit and dirt?
Click to expand...
Ignition coil tested and suspect so have ordered a new one, thanks.


#23

R

Rainbowjohn

Rainbowjohn said:
Ignition coil tested and suspect so have ordered a new one, thanks.
Click to expand...
Under engine cover spotless, engine only 18mths old but tractor 10 yrs old.


#24

R

Rainbowjohn

hlw49 said:
Just got a mouse nest out of one today. I hate meices to pieces. Cleaned lots of them out of engines.
Click to expand...
Engine 18mths old, nice and clean under cover. Tractor 10 yrs old.


#25

S

slomo

Rainbowjohn said:
Engine 18mths old, nice and clean under cover. Tractor 10 yrs old.
Click to expand...
I see all kinds of sludge on the lower block area. Guess I'll take your word the fins are actually clean. (y)

So now you have a coil issue? My first reply on page 1 was to check for spark slash load test the coil.


#26

R

Rainbowjohn

Finally got a new coil, thanks lead and plug. Fitted today with a 0.014 air gap.
Worked for about 10 mins cutting the grass, stopped it for 10 mins to answer the phone. Started it, ran for only 2 mins and stopped by itself. Same problems as before.
Wait 10 mins and it will start again.


#27

R

Rainbowjohn

slomo said:
Crack the fuel tank cap when it dies. Maybe your cap is not venting.
Click to expand...
Yes I tried that after u said, it seemed to work longer before it dies.


#28

S

slomo

Rainbowjohn said:
Yes I tried that after u said, it seemed to work longer before it dies.
Click to expand...
You must have junk in the tank then.

You need air, fuel, spark and compression.

Something is starving for something. Most likely it's fuel or spark. You let it sit. Fuel runs into the carb bowl and fills it. Start the engine and the bowl gets sucked down with little fuel flow.

Remove the fuel line AT the carb. Drain into a glass jar. Should have a good stream of fuel.

Get a new OEM fuel cap.


#29

Hammermechanicman

Hammermechanicman

Is it a gravity system or a fuel pump system?


Footer Links 1

Top