Briggs 12.5 HP fuel leak - Lawn Mower Forums : Lawnmower Reviews, Repair, Pricing and Discussion Forum
Register Home Forum Active Topics Lawnmower Reviews Search Today's Posts Mark Forums Read

Small Engine Repair Discussion Talk about issues or tips you may have for others regarding small engine repairs.

Reply
 
LinkBack Thread Tools
Old 09-25-2011, 06:28 PM   post #1 of 11 (permalink)
Junior Member
 
Join Date: Sep 2011
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Default Briggs 12.5 HP fuel leak

Hello, I have a 12.5 HP briggs and stratton motor (Model 289707 type 0154). I have fuel dripping from right under the breather on the side of the engine... what is causing my problem? It drips pretty good and if you don't shut the fuel off (previous owner put in a valve) it keeps dripping while it sits.

Any recommendations?
02powerstroke is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 09-25-2011, 07:20 PM   post #2 of 11 (permalink)
Super Moderator
 
bwdbrn1's Avatar
 
Join Date: Aug 2010
Location: IL/MI
Posts: 2,962
Thanks: 321
Thanked 437 Times in 318 Posts
Default

Welcome to the group 02powerstroke. Sounds like maybe the float in the carb needs some attention.
bwdbrn1 is offline   Reply With Quote
Old 09-25-2011, 08:07 PM   post #3 of 11 (permalink)
Junior Member
 
Join Date: Sep 2011
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Default

sounds good...

I am not familiar with the breather that covers the springs for the valves, but does it reject fuel if it gets back into that breather? If it doesn't, do I probably have fuel in my oil?
02powerstroke is offline   Reply With Quote
Old 09-25-2011, 08:53 PM   post #4 of 11 (permalink)
Junior Member
 
Join Date: Sep 2011
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Default

I should also mention that I took the float out and it seems fine.. not taking on water, no cracks etc
02powerstroke is offline   Reply With Quote
Old 09-25-2011, 09:10 PM   post #5 of 11 (permalink)
Junior Member
 
Join Date: Sep 2011
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Default

one more thing... I think I have fuel in my oil... ordered a carburetor rebuild kit... I am hoping this will solve my oil/gas seeping...
02powerstroke is offline   Reply With Quote
Old 09-26-2011, 07:09 AM   post #6 of 11 (permalink)
Super Moderator
 
bwdbrn1's Avatar
 
Join Date: Aug 2010
Location: IL/MI
Posts: 2,962
Thanks: 321
Thanked 437 Times in 318 Posts
Default

Keep us posted on how things are going. Don't know if this will help, or not, but there's some really good information covering a lot of Briggs and Stratton carbs here. Maybe yours is among them.
Small Engine Equipment Troubleshooting, Repairs and Safety
bwdbrn1 is offline   Reply With Quote
Old 09-26-2011, 08:16 AM   post #7 of 11 (permalink)
Junior Member
 
Join Date: Sep 2011
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Thanks for the link! I tore the carb down and the parts in it look brand new.. I believe the previous owner rebuilt it. I am going to do the same anyhow, while its apart. I think my fuel leak coming from the engine might be due to having fuel and oil in the engine. I am hoping that draining it down and rebuilding the carb will solve it. I will post results for later references
02powerstroke is offline   Reply With Quote
Old 09-26-2011, 07:30 PM   post #8 of 11 (permalink)
Super Moderator
 
bwdbrn1's Avatar
 
Join Date: Aug 2010
Location: IL/MI
Posts: 2,962
Thanks: 321
Thanked 437 Times in 318 Posts
Default

If you suspect gas has gotten into the oil, you should change the oil and make sure the oil level is correct too.
bwdbrn1 is offline   Reply With Quote
Old 09-30-2011, 05:39 PM   post #9 of 11 (permalink)
Junior Member
 
Join Date: Sep 2011
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Default

ok, so I changed the oil and rebuilt the carb... It isn't fuel that is leaking, its oil... could the previous owner have ran it for long enough with a fuel/oil mix that it ate thru the gasket to the pan? It looks like it is leaking from right below/behind the breather on the carb side
02powerstroke is offline   Reply With Quote
Old 09-30-2011, 07:01 PM   post #10 of 11 (permalink)
Junior Member
 
Join Date: Sep 2011
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Default

ok, so the oil level is high... I am going ot drain a bit off and see how that affects my problem.. could that be the problem? Manual said 1.5qt for my engine... must be different?
02powerstroke is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

Thread Tools

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
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 11:09 AM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.6.0