2 stroke oil leak - Snowblower Forum : Snow Blower Forums
Reply
 
LinkBack Thread Tools
post #1 of 17 Old 03-03-2019, 02:46 PM Thread Starter
Senior Member
 
malisha1's Avatar
 
Join Date: Nov 2018
Posts: 131
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 3
Likes (Given): 0
Likes (Received): 21
2 stroke oil leak

Hi, I have a 2 cycle Murray 4.5hp single stage. I like it a lot and it works super well with no issues so far. I would like to continue to use it for a long time with basic maintenance. I have noticed that the bottom of the engine is covered with oil. I might be incorrectly mixing the gas and oil but I wanted to know if this is normal or is there an issue? There is no blue smoke exhaust when running
malisha1 is online now  
Post Thanks / Like - 0 Thanks, 1 Likes, 0 Dislikes
Likes Lottstodo liked this post
Sponsored Links
Advertisement
 
post #2 of 17 Old 03-03-2019, 02:48 PM Thread Starter
Senior Member
 
malisha1's Avatar
 
Join Date: Nov 2018
Posts: 131
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 3
Likes (Given): 0
Likes (Received): 21
Pix
Attached Thumbnails
Click image for larger version

Name:	20190303_143819_1551642468850.jpg
Views:	57
Size:	100.2 KB
ID:	154403   Click image for larger version

Name:	20190303_143835_1551642480678.jpg
Views:	55
Size:	72.9 KB
ID:	154405   Click image for larger version

Name:	20190303_143905_1551642495879.jpg
Views:	57
Size:	73.4 KB
ID:	154407  
malisha1 is online now  
post #3 of 17 Old 03-03-2019, 02:59 PM
Senior Member
 
Join Date: Jun 2014
Location: Ontario, Canada eh
Posts: 976
Post Thanks / Like
Thanks (Given): 2
Thanks (Received): 44
Likes (Given): 52
Likes (Received): 154
have you tried wiping it off and does it come back? there should be no oil leaking from the crank case if the engine is running good. the 2 strokes require the crank case being sealed to operate properly. maybe some gas has leaked out of the carb and ran down there. hard to say. those are good little machines. i used to have one and loved it.

edit it might be coming from the exhaust now that i looked at it again. sometimes they don't always burn all the fuel and it will come out the exhaust

arien 520 snow blower 6.5hp swap
yardworks 31AH6WKF515

Last edited by crazzywolfie; 03-03-2019 at 03:02 PM.
crazzywolfie is online now  
post #4 of 17 Old 03-03-2019, 03:03 PM
Senior Member
 
Join Date: Mar 2014
Location: Lowell area, MA
Posts: 3,246
Post Thanks / Like
Thanks (Given): 118
Thanks (Received): 277
Likes (Given): 358
Likes (Received): 632
For a 2-stroke, blue smoke while running is really influenced just by how much oil you have mixed in the gas. Unlike a 4-stroke, a 2-stroke's smoke amount shouldn't really change to things like worn piston rings.

It could be a worn/leaking crankshaft/crankcase seal, as crazzywolfie said. Or it could be a carburetor leak, that's allowing oil-mixed gas to drip down the engine. Then the gas evaporates, leaving just the oil. As he said, I'd clean it up, and see if it comes back.

Are there any drips from the carburetor?

Ariens 1024 Pro
Toro Power Clear 221QR
Toro Power Curve 1800

Last edited by RedOctobyr; 03-03-2019 at 03:07 PM.
RedOctobyr is online now  
post #5 of 17 Old 03-03-2019, 03:08 PM Thread Starter
Senior Member
 
malisha1's Avatar
 
Join Date: Nov 2018
Posts: 131
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 3
Likes (Given): 0
Likes (Received): 21
Yes I did wipe it off and it returns. I suspect it's coming from the exhaust. In the pix I posted there a hair like cracks in the crank case. Could it be coming from there?
malisha1 is online now  
post #6 of 17 Old 03-03-2019, 03:08 PM
Senior Member
 
Join Date: Jun 2014
Location: Ontario, Canada eh
Posts: 976
Post Thanks / Like
Thanks (Given): 2
Thanks (Received): 44
Likes (Given): 52
Likes (Received): 154
if it is running good then it probably isn't a seal tho. usually 2 strokes won't stay running long if a crankcase seal is leaking. to me with how dark the stuff is it looks like it is coming out of the exhaust. maybe a bad muffler gasket. my old machine use to have the muffler vibrate loose all the time. i never cared about leaks so never paid much attention to that

arien 520 snow blower 6.5hp swap
yardworks 31AH6WKF515
crazzywolfie is online now  
post #7 of 17 Old 03-03-2019, 03:14 PM
Senior Member
 
Join Date: Mar 2014
Location: Lowell area, MA
Posts: 3,246
Post Thanks / Like
Thanks (Given): 118
Thanks (Received): 277
Likes (Given): 358
Likes (Received): 632
Can you point out the possible crack(s)? They might just be casting marks, hopefully.

Some of my 2-stroke machines drip some oil from the exhaust. I'd imagine it's influenced by the oil mix ratio you're running, as well as what type of oil. My 2-stroke blower certainly has some oily residue on the plastic shroud by the muffler. Even if muffler gaskets were perfect, I'd imagine you could still get some dripping from the actual exhaust opening itself.

Ariens 1024 Pro
Toro Power Clear 221QR
Toro Power Curve 1800
RedOctobyr is online now  
post #8 of 17 Old 03-03-2019, 03:37 PM
Senior Member
 
Join Date: Jun 2014
Location: Ontario, Canada eh
Posts: 976
Post Thanks / Like
Thanks (Given): 2
Thanks (Received): 44
Likes (Given): 52
Likes (Received): 154
but if the gasket was doing its job it would seal up between the muffler and block and burn up any oil/gas residue in the muffler or spit it out the muffler instead of having it leak down the engine onto the ground.

arien 520 snow blower 6.5hp swap
yardworks 31AH6WKF515
crazzywolfie is online now  
post #9 of 17 Old 03-03-2019, 03:41 PM
evh
Member
 
evh's Avatar
 
Join Date: Jun 2015
Location: Midwest
Posts: 94
Post Thanks / Like
Thanks (Given): 2
Thanks (Received): 5
Likes (Given): 41
Likes (Received): 13
What ratio are you mixing the gas/oil? What you are showing is not totally unusual. I have worked on over 50 of there machines and typically there is oil in that area. Yours looks a little worse then what I have seen, however, you may be running too much oil.

I really would worry about it too much. Those engines are pretty hardy things. Again, how many ounces of 2-Cycle oil do your run to how many gallons of gas. It is a 50:1 ratio so that should be roughly 2.6oz per gallon of gas or 5.2oz per two gallons of gas.

You can also easily lift up the cover (remove 3 back screws and typically about 2 - 3 screws on each side and you can lift it and see the muffler and how much is leaking down the side of it. To remove the cover totally (vs just lifting it up), remove the top part of the chute and you can then slide the plastic cover totally off.

One thing I have learned is that living richly is less about the net worth on your bank statement and more about the value of the lessons you offer those who want to learn from you.
evh is online now  
post #10 of 17 Old 03-03-2019, 04:16 PM Thread Starter
Senior Member
 
malisha1's Avatar
 
Join Date: Nov 2018
Posts: 131
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 3
Likes (Given): 0
Likes (Received): 21
I have taken the covers off and most of the oil was a round the exhaust. I usually mix 25-30oz of gas just enough for one gas tank bc I don't get too much snow in NYC I don't want to store 2 cycle gas bc I have no other machines that need it.
malisha1 is online now  
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



Similar Threads
Thread Thread Starter Forum Replies Last Post
Honda Oil Leak Question orangputeh Honda Snowblowers 9 11-19-2018 07:25 AM
Lawn Boy 2 stroke crammit442 Lawn Boy Snowblowers 27 08-27-2017 04:11 PM
2 cycle 4 cycle performance 2 stroke 4 stroke snow2345ffs General Snowblower Discussion 26 12-24-2015 12:18 AM
Honda HS622 Transmission Leak Otto2015 Honda Snowblowers 2 04-19-2015 12:35 AM
New Piston and rings for two stroke. Pathfinder13 Snowblower Repairs and Maintenance Forum 42 03-10-2015 09:19 PM

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