Engine stop

[Marcel 5]

I have a wheel horse 1985 314A   with a 14 hp Kohler engine and recently after mowing the lawn for about 1 hr the motor shuts down by it self.

After leaving it pause for about 1 hr it starts like new

Any info would be appreciated

Thank you

[gwest_ca-(File Mod) 11,077]

Running out of fuel - loosen the cap in case the tank vent is plugged..

There is likely a filter in the tank. If you can drain the complete tank by gravity with a consistent flow the filter should be good. Start out with at least 1/2 tank. May be junk in the fuel from 39 years of service.

 

Losing ignition or spark?

Download this file and there is one drawing there that shows just the ignition.

Not what we normally see in ignition circuits.

When the pto is ON the seat switch powers the ignition.

When the pto is OFF the pto switch powers the ignition.

[Marcel 5]

On 6/19/2024 at 11:11 PM, gwest_ca said:

Running out of fuel - loosen the cap in case the tank vent is plugged..

There is likely a filter in the tank. If you can drain the complete tank by gravity with a consistent flow the filter should be good. Start out with at least 1/2 tank. May be junk in the fuel from 39 years of service.

 

Losing ignition or spark?

Download this file and there is one drawing there that shows just the ignition.

Not what we normally see in ignition circuits.

When the pto is ON the seat switch powers the ignition.

When the pto is OFF the pto switch powers the ignition.

 

On 6/19/2024 at 11:11 PM, gwest_ca said:

Running out of fuel - loosen the cap in case the tank vent is plugged..

There is likely a filter in the tank. If you can drain the complete tank by gravity with a consistent flow the filter should be good. Start out with at least 1/2 tank. May be junk in the fuel from 39 years of service.

 

Losing ignition or spark?

Download this file and there is one drawing there that shows just the ignition.

Not what we normally see in ignition circuits.

When the pto is ON the seat switch powers the ignition.

When the pto is OFF the pto switch powers the ignition.

 

[Marcel 5]

Just now, Marcel said:

Thank you for the quick response.

So far, I have changed the ignition coil, condenser. wire from the spark plug to the ignition coil with no improvement.

In this forum is there a way that I can be notified when someone reply to a question

 

 

[Marcel 5]

14 minutes ago, Marcel said:

Forgotten, also change the gas line and filter

 

[rmaynard 15,547]

Common problem. Do the simplest thing first. Run it again. When it stops, unscrew the gas cap. Try starting. If it starts, a clogged vent in the cap is your problem.

[kpinnc 12,188]

12 hours ago, rmaynard said:

Do the simplest thing first

 

As with many things said here, I need this on a T-shirt.

 

...And maybe backwards on a hat! 

 

!tsrif gniht tselpmis eht oD

 

 

Edited June 25 by kpinnc

[953 nut 55,425]

21 hours ago, Marcel said:

In this forum is there a way that I can be notified when someone reply to a question

If your post is "Quoted" as I just did then you will have a notification, otherwise just check back on your post periodically.

[rjg854 11,395]

At the top of this thread on the right-hand side you see a box that says follow this thread.  Click on it and you'll be notified any time someone responds to the thread.

[Marcel 5]

On 6/24/2024 at 9:30 AM, rmaynard said:

Common problem. Do the simplest thing first. Run it again. When it stops, unscrew the gas cap. Try starting. If it starts, a clogged vent in the cap is your problem.

I turned the gas cap upside down and pored about a the spoon of gas and it went right threw

[Marcel 5]

On 7/1/2024 at 10:53 PM, Marcel said:

I turned the gas cap upside down and pored about a the spoon of gas and it went right threw

Should the in line gas filter be full

 

Edited July 15 by Marcel
Forgotten info

[8ntruck 7,039]

In line gas filters are usually not full.  The filter on my 14-8 is usually half full, or half empty if you are a pessimist.

[peter lena 8,671]

@Marcel  very easy to DROP THE CARB BOWL , possible loaded with tank / fuel line debris , tank is probably loaded with related goodies  over the years . have also run the engine , on a seperate gallon of  heavily treated fresh gas , for a refresh  / cleanout . gas lines do not have to be full , but have to staidly replace any air gap that  shows up  . sounds like fuel hose break down to me , not a difficult  fix , pete

[Marcel 5]

14 hours ago, 8ntruck said:

In line gas filters are usually not full.  The filter on my 14-8 is usually half full, or half empty if you are a pessimist.

Brand new filter and gas line.

The carburettor and tank are higher than the filter, shouldn’t the filter be full

[rjg854 11,395]

Not necessarily, most of mine aren't totally full.

[Marcel 5]

Tractor finaly working

Change the filter in the tank 4.50$

Thank you all for your help

[Willy29 7]

I have a similar issue with my H520, it starts cold no problem, then after 5 min. it shuts off and acts like it's not getting fuel. The inline filter isn't clogged and the fresh fuel is 91 octane with good fuel stabilizer. It sometimes starts in 5 min. then keeps running for over an hour. Never had this issue since I bought it in 1998.

[lynnmor 7,323]

5 hours ago, Willy29 said:

I have a similar issue with my H520, it starts cold no problem, then after 5 min. it shuts off and acts like it's not getting fuel. The inline filter isn't clogged and the fresh fuel is 91 octane with good fuel stabilizer. It sometimes starts in 5 min. then keeps running for over an hour. Never had this issue since I bought it in 1998.

 

Check the spark immediately after a shutdown, a tester like this can be helpful.

If no spark is found then the ignition module is likely failing when hot.

[Willy29 7]

Thanks, but why will it run after I get it started again and not shut off?

[Marcel 5]

On 7/18/2024 at 10:14 PM, Willy29 said:

I have a similar issue with my H520, it starts cold no problem, then after 5 min. it shuts off and acts like it's not getting fuel. The inline filter isn't clogged and the fresh fuel is 91 octane with good fuel stabilizer. It sometimes starts in 5 min. then keeps running for over an hour. Never had this issue since I bought it in 1998.

Try changing the filter in the tank

[peter lena 8,671]

@Marcel  nothing sarcastic , but a repetitive problem , is what you want for tracking , think fuel is involved , but common , wire chafing , shorting , corrosion connections , with chassy movement , can also act up , would not be surprised if its , tank crud related , might also try running it on a seperate gallon of heavily treated fresh gas , pete  

[Willy29 7]

I used my Toro leaf blower, got rid of a mouse nest and it ran great today. Thanks for all the suggestions. I also didn't know there was a fuel filter in the tank. Thanks for that info.