Register free!
Search
 
     

The Green Industry's Resource Center


Click for Weather
Reply
 
Thread Tools Display Modes
  #1  
Old 09-06-2005, 10:42 AM
JJLandscapes JJLandscapes is offline
LawnSite Senior Member
 
Join Date: May 2005
Location: Plainview NY
Posts: 682
scag blowing out flames

we installed a new exhaust for our 32" scag 2 weeks ago and everything was fine now there are flames shooting out of the exhaust once in a while..... it has a 14hp kawasaki engine that never gave a problem before

what could be causing this? some sort of leak?
Reply With Quote
  #2  
Old 09-06-2005, 07:12 PM
Restrorob's Avatar
Restrorob Restrorob is offline
LawnSite Fanatic
 
Join Date: Apr 2005
Location: Show'n my truck off !
Posts: 10,530
Quote:
Originally Posted by JJLandscapes
we installed a new exhaust for our 32" scag 2 weeks ago and everything was fine now there are flames shooting out of the exhaust once in a while..... it has a 14hp kawasaki engine that never gave a problem before

what could be causing this? some sort of leak?
Post the model and spec. numbers off the white bar code label On the shroud.
How old is this unlt ? How many hours do you figure is on it ?
__________________
Quote:
Originally Posted by piston slapper View Post
You never learn anything until you admit you don't know it all...

"Why go out preserved when you can go out beat up, worn out, sliding in sideways screaming, Holy Sh!t What A Ride" !!!
Reply With Quote
  #3  
Old 09-06-2005, 07:24 PM
lawnmaniac883's Avatar
lawnmaniac883 lawnmaniac883 is offline
LawnSite Silver Member
 
Join Date: Aug 2005
Location: largo, FL
Posts: 2,621
Get some pics of this beast blowin flames at night LOL, put a marshmallow next to the muffler lmao
Reply With Quote
  #4  
Old 09-07-2005, 07:35 PM
ed2hess's Avatar
ed2hess ed2hess is offline
LawnSite Fanatic
 
Join Date: Nov 2002
Location: Austin Texas 78727
Posts: 11,382
Would it throw a flame if the exhaust valve isn't fully closed when it fires? Maybe the valves are sticking.....put some kind of addative in oil for that maybe??
Reply With Quote
  #5  
Old 09-07-2005, 08:19 PM
lawnmaniac883's Avatar
lawnmaniac883 lawnmaniac883 is offline
LawnSite Silver Member
 
Join Date: Aug 2005
Location: largo, FL
Posts: 2,621
Ed, I highly doubt that seeing how he mentions no poor performance or valve rattle/noise. I would have a leakdown test done on the machine...may tell if you have a leak anyway.
Reply With Quote
  #6  
Old 09-07-2005, 09:06 PM
Restrorob's Avatar
Restrorob Restrorob is offline
LawnSite Fanatic
 
Join Date: Apr 2005
Location: Show'n my truck off !
Posts: 10,530
Quote:
Originally Posted by ed2hess
Would it throw a flame if the exhaust valve isn't fully closed when it fires? Maybe the valves are sticking.....put some kind of addative in oil for that maybe??
Thats right where I was headed ed. Most Kawasaki engines should have the head removed and decarboned every 300 hours and valves adjusted.
With a small piece of carbon under the exhaust valve could in fact hold it open enough to let the flame through but show no sign of poor performance or rocker noise.
And lawnmaniac, A leak-down test would be the ultimate way to check for this problem or any other.
IMO I'm leaning towards a exhaust valve problem.
__________________
Quote:
Originally Posted by piston slapper View Post
You never learn anything until you admit you don't know it all...

"Why go out preserved when you can go out beat up, worn out, sliding in sideways screaming, Holy Sh!t What A Ride" !!!
Reply With Quote
  #7  
Old 09-07-2005, 09:12 PM
iluvscag's Avatar
iluvscag iluvscag is offline
LawnSite Senior Member
 
Join Date: Oct 2004
Location: Pizza Hut
Posts: 735
Quote:
Originally Posted by lawnmaniac883
Get some pics of this beast blowin flames at night LOL, put a marshmallow next to the muffler lmao
Good one...couple hot dogs to.
__________________
Lawnsite "Chief of Security"
Topsites-ism "With the Wb, I'll gladly pop a wheelie and let you see the spinning blades as I steer towards you,"
Team Fluid Film
As quoted by fellow member or lawn god "Fareway"
We had the throttle cranked and we roostered tailed out of there.
Reply With Quote
  #8  
Old 09-08-2005, 03:24 PM
lawnmaniac883's Avatar
lawnmaniac883 lawnmaniac883 is offline
LawnSite Silver Member
 
Join Date: Aug 2005
Location: largo, FL
Posts: 2,621
Strange how a flame is gettin past the muffler/spark arrestors and shootin out isnt it yall?
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump





Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ©1998 - 2012, LawnSite.comô - Moose River Media
All times are GMT -4. The time now is 04:47 AM.

Page generated in 0.09945 seconds with 9 queries