Jump to content

Nominations for Tractor of the Month
Garden Tractors and Parts on eBay



Photo
- - - - -

Neighbors Gt Issue


  • Please log in to reply
38 replies to this topic

#1 KennyP OFFLINE  

KennyP

    FORDoholic

  • Super Moderator
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 2253
  • 28,518 Thanks
  • 39,734 posts
  • Location: Collinsville, Oklahoma

Posted August 22, 2013 - 05:47 AM

A neighbor brought over his newer Sears Gt Has an issue of starving for gas when it warms up. This has the 25 HP B&S (445777) V-Twin. We will get into it this weekend. Just wondering if anyone has info on these engines about this issue?

He has put on a new fuel filter and cleaned the flywheel of rust. Said he reset the 'coil' gap after cleaning. May need to recheck that. It does have a vacuum fuel pump, wonder if it is getting weak and failing when it warms up?

Of course, we will check that the cooling fins are cleaned out.

He has had the fuel shut-off solenoid checked and it was okay. Drained the carb, but no change in the situation. Still 'starves' (has to choke to keep running, than dies and won't restart until it cools). Once cooled down, it runs fine. May be the coils overheating and breaking down when warm?

Just trying to get ideas of what all to check. May need to mow a bit with it and see if it does it so we can check fuel and spark at that time.


  • JRJ said thank you

#2 MH81 ONLINE  

MH81

    Proud to be Deplorable

  • Staff Admin
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 802
  • 27,320 Thanks
  • 28,640 posts
  • Location: N. W. PA

Posted August 22, 2013 - 06:09 AM

I think you have the ideas, but one more thing to check.
On my GT5k, the fuel line dropped down close to the hydro (tank is right above the tranny) and on hot days it would vapor lock just like you describe. I found it by watching and seeing tiny bubbles in the fuel filter.
  • nra1ifer, Alc, Texas Deere and Horse and 1 other said thanks

#3 KennyP OFFLINE  

KennyP

    FORDoholic

  • Super Moderator
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 2253
  • 28,518 Thanks
  • 39,734 posts
  • Location: Collinsville, Oklahoma

Posted August 22, 2013 - 06:34 AM

i was also thinking the valve lash could need adjustment. We'll get into it tomorrow, as we don't have work till Monday! Finishing up on an interior paint today!



#4 boyscout862 ONLINE  

boyscout862
  • Senior Member
  • Member No: 8923
  • 9,804 Thanks
  • 7,545 posts
  • Location: N.E. Connecticut

Posted August 22, 2013 - 07:03 AM

Just for the heck of it, I'd pull the needle valves and blow carb cleaner through their passages. Sometimes its just a piece of dirt. Good Luck, Rick


  • KennyP said thank you

#5 nra1ifer OFFLINE  

nra1ifer

    Tractorholic

  • Senior Member
  • Contributor
  • Member No: 383
  • 669 Thanks
  • 1,530 posts
  • Location: Bentonville, AR

Posted August 22, 2013 - 07:24 AM

I think you have the ideas, but one more thing to check.
On my GT5k, the fuel line dropped down close to the hydro (tank is right above the tranny) and on hot days it would vapor lock just like you describe. I found it by watching and seeing tiny bubbles in the fuel filter.

My 2009 PGT9000 starves itself once in awhile and has only happened on hot days. I'll have to check that one out.


  • KennyP said thank you

#6 Rock farmer OFFLINE  

Rock farmer
  • Senior Member
  • -GTt Supporter-
  • Member No: 10759
  • 1,119 Thanks
  • 1,177 posts
  • Location: York Maine

Posted August 22, 2013 - 07:58 AM

My neighbor had a problem with his new MTD. He called them, and, they sent him to the local tractor shop for a warranty repair. Had to due with the fuel line being routed on the wrong side of a heat shield around the muffler? I would check that the fuel lines not going someplace where it any be getting too hot.

Joe
  • MH81 and KennyP have said thanks

#7 LTD OFFLINE  

LTD

    Cub Cadet Collector

  • Senior Member
  • -GTt Supporter-
  • Member No: 5951
  • 1,028 Thanks
  • 1,455 posts
  • Location: Earlville N.Y.

Posted August 22, 2013 - 09:45 AM

Sounds like it might be vapor-locking. I have an 1100 Cub that has the same problem right now. Haven't looked in to it yet, but I think that is the problem.


  • KennyP and IlovemyCub have said thanks

#8 OkieGt OFFLINE  

OkieGt
  • Senior Member
  • -GTt Supporter-
  • Member No: 36782
  • 1,427 Thanks
  • 1,447 posts
  • Location: Oologah, Oklahoma

Posted August 22, 2013 - 10:06 AM

The plastic intake manifold has a small crack in it?


Edited by OkieGt, August 22, 2013 - 10:38 AM.

  • MH81 and KennyP have said thanks

#9 HDWildBill OFFLINE  

HDWildBill

    Freedom is not Free. Thank those in uniform for your freedom.

  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 6354
  • 8,712 Thanks
  • 8,564 posts
  • Location: Ga

Posted August 22, 2013 - 10:30 AM

Sounds like you have a good plan Kenny and there are some good suggestions above as well.  I had one a while back that had a crack in the vacuum line to the pump right where it connects to the engine, but this engine was acting up all the time.  Good luck and let us know what you find.


  • Alc, KennyP and OkieGt have said thanks

#10 KennyP OFFLINE  

KennyP

    FORDoholic

  • Super Moderator
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 2253
  • 28,518 Thanks
  • 39,734 posts
  • Location: Collinsville, Oklahoma

Posted August 23, 2013 - 07:12 AM

The plastic intake manifold has a small crack in it?

Mike it's an intermittent issue, Normally after it has ran for a while, but happened once just after he started it. I chatted some more with him this morning about it. I'm pretty sure it's a fuel issue. Could be something in the tank clogging the line. It's a 2006 mower. I'm planning to use it some today and see if it shows up.


  • boyscout862 and OkieGt have said thanks

#11 OkieGt OFFLINE  

OkieGt
  • Senior Member
  • -GTt Supporter-
  • Member No: 36782
  • 1,427 Thanks
  • 1,447 posts
  • Location: Oologah, Oklahoma

Posted August 23, 2013 - 07:18 AM

Mike it's an intermittent issue, Normally after it has ran for a while, but happened once just after he started it. I chatted some more with him this morning about it. I'm pretty sure it's a fuel issue. Could be something in the tank clogging the line. It's a 2006 mower. I'm planning to use it some today and see if it shows up.

I had a friend with the same mower, and a small crack developed in the plastic intake so it started sucking air and not fuel, just thought your neighbors might be the same, good luck.


  • KennyP and boyscout862 have said thanks

#12 KennyP OFFLINE  

KennyP

    FORDoholic

  • Super Moderator
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 2253
  • 28,518 Thanks
  • 39,734 posts
  • Location: Collinsville, Oklahoma

Posted August 23, 2013 - 07:28 AM

Mike, I won't rule that out at this time, but being it runs fine for a while then acts up has me thinking (1) debris in tank, (2) vapor lock, (3) fuel pump, (4) small amount of water in fuel. Probably several other issues could do this too. Once it does it to me, then I'll find out what is going on. I didn't realize the intake was plastic on these! Thanks!



#13 KennyP OFFLINE  

KennyP

    FORDoholic

  • Super Moderator
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 2253
  • 28,518 Thanks
  • 39,734 posts
  • Location: Collinsville, Oklahoma

Posted August 23, 2013 - 04:44 PM

I ran the mower a while this morning and only got it to hiccup twice, Sent it back home with advice to put seafoam in the tank, I think he has a water issue, but we'll know when he runs it for a while!



#14 KennyP OFFLINE  

KennyP

    FORDoholic

  • Super Moderator
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 2253
  • 28,518 Thanks
  • 39,734 posts
  • Location: Collinsville, Oklahoma

Posted August 25, 2013 - 05:26 PM

It's back! I told him to get Seafoam, but that was to much money, He got Heet instead. Now it won't run with out the choke all the way out. Still get sputters and dying. I'm drawing in on the fuel pump. This tractor is about 8 years old.



#15 MH81 ONLINE  

MH81

    Proud to be Deplorable

  • Staff Admin
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 802
  • 27,320 Thanks
  • 28,640 posts
  • Location: N. W. PA

Posted August 25, 2013 - 05:29 PM

It's back! I told him to get Seafoam, but that was to much money, He got Heet instead. Now it won't run with out the choke all the way out. Still get sputters and dying. I'm drawing in on the fuel pump. This tractor is about 8 years old.


Start charging by the hour and Seafoam will get cheaper...


Is the fuel filter a clear one?
  • OkieGt said thank you




Top