Gas in the Oil - Snowblower Forum : Snow Blower Forums
Reply
 
LinkBack Thread Tools
post #1 of 11 Old 11-30-2015, 09:15 PM Thread Starter
Junior Member
 
Join Date: Nov 2015
Location: Billings, MT
Posts: 5
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 0
Likes (Given): 0
Likes (Received): 0
Gas in the Oil

I have a 26" Troybilt blower with a 208cc engine. When I checked the dipstick before changing oil the other day I noticed it was way over full. I started the engine to let it warm up and it only ran for maybe 5 minutes. There was gas in the tank but I filled it anyway just to be sure that was not the problem. Started it again and it maybe ran for 3 minutes.

After draining the oil I noticed that it seemed quite thin and smelled of gasoline. I poured it into a plastic container with the ounces marked on it. After setting for about 4 days evaporation took it from 32 to about 22 ounces. I believe it is supposed to hold 22 ounces of oil.

After filling it with oil it kept running and I was able to clean my neighbors and my driveways. Does anyone have any idea on how the gas might get into the oil? I didn't accidentally put gas in the oil fill. My only thought that if it was running way too rich it might get past the piston and down into the oil. I thought usually a rich running engine would produce black smoke, which I don't get. But I may be wrong on that.

Thanks, Steve
Stevej72 is offline  
Sponsored Links
Advertisement
 
post #2 of 11 Old 11-30-2015, 09:22 PM
Junior Member
 
Join Date: Nov 2015
Location: Central Michigan
Posts: 15
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 0
Likes (Given): 0
Likes (Received): 6
Typically this means that the carburetor is overflowing into the crankcase. Does the unit have a fuel shutoff valve on it? If it does not and is relying on a functioning needle valve, it may be leaking past the needle and overflowing into the intake and then down into the crankcase when the engine is sitting/not running.

-MichiganBolensNut

Tractors:
Bolens HT-20 w/ 48" Two-Stage Blower
Bolens GT2000 Duratrac w/ 48" Two-Stage Blower
MichiganBolensNut is offline  
post #3 of 11 Old 11-30-2015, 09:41 PM
Moderator
 
Shryp's Avatar
 
Join Date: Jan 2011
Location: Cleveland, OH
Posts: 4,159
Post Thanks / Like
Thanks (Given): 1
Thanks (Received): 196
Likes (Given): 6
Likes (Received): 250
Yea, most likely cause is the needle and seat in the carb isn't turning off the fuel like it should. When that happens gas ends up 1 of 2 places. It either goes down the cylinder and ends up in the oil or it goes out the choke and ends up on the floor.

Please direct all snow blower questions to the forums and not to me with PMs.
Shryp is offline  
Post Thanks / Like - 0 Thanks, 1 Likes, 0 Dislikes
Likes 43128 liked this post
post #4 of 11 Old 11-30-2015, 10:59 PM Thread Starter
Junior Member
 
Join Date: Nov 2015
Location: Billings, MT
Posts: 5
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 0
Likes (Given): 0
Likes (Received): 0
Thank you both! Not sure if that is something I can fix, will probably need to take it in. I don't image gas helps the oil to lubricate properly.
Stevej72 is offline  
post #5 of 11 Old 12-01-2015, 07:13 AM
Banned
 
Join Date: Sep 2010
Location: Michigan
Posts: 1,585
Post Thanks / Like
Thanks (Given): 3
Thanks (Received): 158
Likes (Given): 95
Likes (Received): 302
If you have the Powermore engine, it doesn't come with a fuel shutoff. The problem with those engines is the shrouding is overly complicated and there is no real spot to to allow you to get to a self installed shut off. Ugly fix might be routing a new fuel line outside the shrouding to a shutoff, or removing the middle portion of the shrouding and being able to get to an inline self installed shutoff. As you can see not much room. Don't know which TB model you have, but this is a video of a 208cc Powermore.

Last edited by jtclays; 12-01-2015 at 07:17 AM.
jtclays is offline  
post #6 of 11 Old 12-01-2015, 11:29 AM
Senior Member
 
Ray 1962 10ML60's Avatar
 
Join Date: Oct 2011
Location: Long Island
Posts: 581
Post Thanks / Like
Thanks (Given): 24
Thanks (Received): 34
Likes (Given): 15
Likes (Received): 23
You can also check your gas cap. If it is a vented cap and it clogs, it can create a vacuum effect and pull gas down into the engine after the machine is shut down. Make sure those little holes in the cap are clear.

Ray
1962 Ariens 10ML60
1979 Toro 524
1975 MTD Snowflite 4/22
Ray 1962 10ML60 is offline  
post #7 of 11 Old 12-01-2015, 11:34 AM
Senior Member
 
micah68kj's Avatar
 
Join Date: Oct 2011
Location: S. C. Pa. 39.755928, -77.577766
Posts: 4,879
Post Thanks / Like
Thanks (Given): 139
Thanks (Received): 269
Likes (Given): 371
Likes (Received): 910
What jtclays said.
Somehow, some way, install a fuel shutoff valve on it.

Joe

Sent from my junky old Hisense 7" tablet that I can barely see.
Toro 724
Toro CCR 3650E
Toro 5/21 sold
Ariens 5/22 ss ..Sold
Ariens Sno Tek 7/24 sold.
Old green plastic snow shovel... Sent.to shovel Heaven
Old quarry shovel for ice.
New.green shovel
micah68kj is online now  
post #8 of 11 Old 12-01-2015, 06:59 PM
Senior Member
 
Join Date: Nov 2013
Location: SW Ohio
Posts: 3,175
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 142
Likes (Given): 0
Likes (Received): 291
It could also be that the machine has one of those electric shut-off's, on the carb, that are notorious to fail.

Is there a single electric line running to a solenoid, extending from where a fuel bowl nut would usually be?

That might, and probably is your culprit.

If you post up your engine model numbers, not the machine, we can help you at least narrow down the fault.

Garage:
MTD....2 stage(modern 8.5 HP) not my favorite
Honda HS622 TA-B - acquired at an auction- nice machine for it's size.
Toro S-140- Picked it up on trash day... it runs, sort of.
Yamaha YS 240 TB "Ricky" latest Craigslist find- on the bench now.
db9938 is offline  
post #9 of 11 Old 12-01-2015, 08:25 PM Thread Starter
Junior Member
 
Join Date: Nov 2015
Location: Billings, MT
Posts: 5
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 0
Likes (Given): 0
Likes (Received): 0
Quote:
Originally Posted by db9938 View Post
It could also be that the machine has one of those electric shut-off's, on the carb, that are notorious to fail.

Is there a single electric line running to a solenoid, extending from where a fuel bowl nut would usually be?

That might, and probably is your culprit.

If you post up your engine model numbers, not the machine, we can help you at least narrow down the fault.

I put it up on my work bench this evening to get a better look. I don't see any wires coming from the fuel bowl area. Tried to find a model for the engine but only found SN.
Blower model # 31BM63P3711
engine SN: 370-SUC1202103A1011
Stevej72 is offline  
post #10 of 11 Old 12-01-2015, 08:32 PM Thread Starter
Junior Member
 
Join Date: Nov 2015
Location: Billings, MT
Posts: 5
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 0
Likes (Given): 0
Likes (Received): 0
I tried checking the gas gap for plugged vent but was unable to tell.
than video looks exactly like mine so should be able to take it apart and put in valve.
Stevej72 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Snowblower Forum : Snow Blower Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may 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

 
For the best viewing experience please update your browser to Google Chrome