Jump to content
little red riding horse

c175 engine cuts out under load

Recommended Posts

little red riding horse

Hi people 

So engine runs sweet , drives well .. as soon as i go to engage the cutting deck it dies out, actually stops... out of ideas ! below is what ive done 

replace fuel lines to carb 

replaced fuel tap , inc new fuel filter and cleaned out fuel tank

checked electric fuel pump , (running and pumping as it should ) original one died few years back 

stripped down & cleaned out carb & replaced and checked inlet manifold gasket for leaks once back on 

cleaned and re-gapped spark plugs 

checked both plugs are working (removed leads while it was running ) 

think i replaced condensor few years back ... 

im thinking fuel starvation but looking at the filter its getting plenty of fuel 

What have i missed ? im out of ideas !!

Phil

Share this post


Link to post
Share on other sites
 
8ntruck

Is the mower deck turning freely?  Are the pulleys in the mule drive turning freely?

 

I've got a 42" rear discharge deck that I need to go through.  Last time I used it, it was dragging the engine down to the point that it was not cutting when I engaged it.  

 

Good luck.

Share this post


Link to post
Share on other sites
 
lynnmor

Replace the spark plugs, they can cause problems even after cleaning.

Share this post


Link to post
Share on other sites
 
little red riding horse
48 minutes ago, 8ntruck said:

Is the mower deck turning freely?  Are the pulleys in the mule drive turning freely?

 

I've got a 42" rear discharge deck that I need to go through.  Last time I used it, it was dragging the engine down to the point that it was not cutting when I engaged it.  

 

Good luck.

Yes all free no binding :thumbs:

Share this post


Link to post
Share on other sites
 
little red riding horse
38 minutes ago, lynnmor said:

Replace the spark plugs, they can cause problems even after cleaning.

One of the few things i havent done.. i actually did all this because it was running really rough back firing and so on ... running nice now but wont run the the decks .. do they prefer any specific type of plug ? 

how many safety switches are there for the pto ? i know there is one safety switch under the seat ... just wandering if it could be that ... ill replace the plugs anyhow though because they are old 

Many thanks 

Share this post


Link to post
Share on other sites
 
Bill D

Sounds like a safety switch issue.

  • Like 1

Share this post


Link to post
Share on other sites
 
PWL216

I agree with @Bill D. If you want to be sure that it’s not the deck causing the issue, disconnect the belt from the PTO pulley. If it still cuts out after that, it’s very likely a safety switch issue.

  • Like 1
  • Excellent 1

Share this post


Link to post
Share on other sites
 
953 nut

Check the wires going to your seat switch, if they have become disconnected or broken the switch will not know you are in the seat and will cut out your ignition when the PTO is engaged.

  • Like 1

Share this post


Link to post
Share on other sites
 
little red riding horse

So , the wire from the cut out switch under the seat had a break in it ! replaced and all good so thanks for your help ! Also put new spark plugs in... what a difference... so want to take blades off next and sharpen them, what would be the correct size socket ? and are they a right hand thread ? 

Phil

  • Thanks 2

Share this post


Link to post
Share on other sites
 
953 nut
25 minutes ago, little red riding horse said:

correct size socket ? and are they a right hand thread ?

The threads are right hand.    You will need a 1 1/8" socket and it would be very helpful to have a 1 1/8" open end wrench that has been filed down thin enough to hold the spindle from turning.

Share this post


Link to post
Share on other sites
 
little red riding horse

Great , thanks for your help !

Phil

  • Thanks 1

Share this post


Link to post
Share on other sites
 

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×
×
  • Create New...