Register free!
Search
 
     

The Green Industry's Resource Center


Click for Weather
Reply
 
Thread Tools Display Modes
  #1  
Old 06-06-2006, 08:19 PM
jmurphy's Avatar
jmurphy jmurphy is offline
LawnSite Senior Member
 
Join Date: May 2005
Location: Utica,Ny
Posts: 273
Walk Behind Blower Not running right

I have a Mighty Mac WB blower with a 3 HP Briggs engine on it. It has to be at least 15 years old. The engine will start and run for like 10 minutes and then it seems like it gets hot and shuts off.The engine smokes a litle after running for about 10 minutes. What could be the problem? Is it worth it to just get another 3.5HP engine(Briggs Doesnt make a 3Hp anymore) or what?

Thanks, John Murphy
__________________
Reply With Quote
  #2  
Old 06-06-2006, 08:31 PM
jmurphy's Avatar
jmurphy jmurphy is offline
LawnSite Senior Member
 
Join Date: May 2005
Location: Utica,Ny
Posts: 273
Engine Model Number
80212 2384 01 89072703
__________________
Reply With Quote
  #3  
Old 06-06-2006, 09:09 PM
lawnmaniac883's Avatar
lawnmaniac883 lawnmaniac883 is offline
LawnSite Silver Member
 
Join Date: Aug 2005
Location: largo, FL
Posts: 2,621
Black smoke blue smoke green smoke purple smoke?
Reply With Quote
  #4  
Old 06-06-2006, 09:28 PM
jmurphy's Avatar
jmurphy jmurphy is offline
LawnSite Senior Member
 
Join Date: May 2005
Location: Utica,Ny
Posts: 273
yellow smoke.......JUST KIDDING.......greyish smoke.
__________________
Reply With Quote
  #5  
Old 06-06-2006, 09:51 PM
Jim@MilkyWay Jim@MilkyWay is offline
LawnSite Senior Member
 
Join Date: Mar 2006
Location: Dahlonega, GA.
Posts: 476
Man!!
We got's a bunch of smart alecks tonight don't we!?
Reply With Quote
  #6  
Old 06-06-2006, 09:57 PM
LawnInOrder LawnInOrder is offline
LawnSite Senior Member
 
Join Date: Mar 2005
Location: Long Island, NY
Posts: 398
Quote:
Originally Posted by jmurphy
I have a Mighty Mac WB blower with a 3 HP Briggs engine on it. It has to be at least 15 years old. The engine will start and run for like 10 minutes and then it seems like it gets hot and shuts off.The engine smokes a litle after running for about 10 minutes. What could be the problem? Is it worth it to just get another 3.5HP engine(Briggs Doesnt make a 3Hp anymore) or what?

Thanks, John Murphy
It could be one of these probelms. The crankcase breather(s) are malfunctioning, or Leaking crankcase gaskets or seals are causing the engine to lose crankcase vacuum, and allowing the oil to be "pulled" into the combustion chamber or Oil is leaking past worn or damaged valve stems, valve stem seals, or valve guides. Mostly likey it is a oil ring(s) and/or cylinder bore are worn or damaged. LawnInOrder
__________________
1986 Mack 6 Wheeler
2002 Mitso Fuso Crew Cab Mason Dump
2000 Mitso Fuso Mason Dump
1996 Mitso Fuso Stake Body
1999 Dodge 2500 w/ 7.5' Western Plow
12X6 Enclosed Trailer
12X6.5 open Trailer
16X6.5 Bobcat Trailer
20 Ton Bobcat Trailer
Bobcat 873
Bobcat 753-For Sale
Reply With Quote
  #7  
Old 06-07-2006, 10:58 AM
lawnmaniac883's Avatar
lawnmaniac883 lawnmaniac883 is offline
LawnSite Silver Member
 
Join Date: Aug 2005
Location: largo, FL
Posts: 2,621
Is there lots of carbon/soot on the spark plug or does it look 'wet'?
Reply With Quote
  #8  
Old 06-07-2006, 12:34 PM
Jim@MilkyWay Jim@MilkyWay is offline
LawnSite Senior Member
 
Join Date: Mar 2006
Location: Dahlonega, GA.
Posts: 476
I would _not_ run that engine until you resolve this. You are seriously asking for shrapnel in your eye! Increased friction is directly proportional to increased temperature and vise versa. If she lets go at WOT, then....!!! You did at least supply the info for which RestroRob has pleaded and repeated (see post#3 at top of this forum) until he has blue smoke coming out his ears; "what is the model, serial, engine and part numbers, color code", well, maybe not quite.

Why do you think the engine is running hot? Also, I assume it is smoking out the exhaust; or is it smoking from the jug exterior as is the case with hot oil residue on cooling fins.
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 05:07 AM.

Page generated in 0.09560 seconds with 7 queries