B&S leak at base of crankcase - Snowblower Forum : Snow Blower Forums
 
LinkBack Thread Tools
post #1 of 8 Old 02-11-2018, 05:03 PM Thread Starter
Junior Member
 
Join Date: Jan 2018
Posts: 3
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 0
Likes (Given): 0
Likes (Received): 0
B&S leak at base of crankcase

I have a new B&S 14.5 torque motor I transplanted on my 30" craftsman, I have made sure that everything is line up ok and the shaft lines up well with the pulley from the original motor, that was also a B&S snow engine. I noticed a small oil leak at the base of the crankcase - where it meets the block, anybody know if this is something that's common? on a new motor...? are there certain signs i can look at that I can check that may be a problem? any thoughts are appreciated. thanks!
make_shift is offline  
Sponsored Links
Advertisement
 
post #2 of 8 Old 02-11-2018, 06:25 PM
Banned
 
Join Date: Aug 2016
Location: New Jersey
Posts: 267
Post Thanks / Like
Thanks (Given): 10
Thanks (Received): 15
Likes (Given): 16
Likes (Received): 17
Their is a fellow on youtube who goes by the name Alex S.
He made a video of a New Briggs and Stratton winter engine he bought. It was leaking from the bottom of the block like what you are describing and it turned out their was a crack in the block on the bottom. He had to return the engine for a replacement. Either it got damaged during shipping or it was a lemon.
Add oil, keep the engine so you can either turn it over or raise it so you can look under it and see where the leak is coming from, clean that area and look for a small crack. If their is that is the issue. If you can return the engine do so, if not you are going to have to find a way to repair it by sealing the crack. Good luck, I hope I am wrong and it is not cracked, but that is what it sounds like since I have already heard of it happening in that exact spot.
FearlessFront is offline  
post #3 of 8 Old 02-11-2018, 07:12 PM
Senior Member
 
Join Date: Nov 2011
Location: Madison, WI
Posts: 407
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 29
Likes (Given): 1
Likes (Received): 66
Not knowing anything about such engine.. take with grain of salt.. but also make sure it isn't leaking down to the base from the oil/dipstick fill tube. cracked o-ring, ect. just a very unlikely culprit but worth checking.
Geno is offline  
post #4 of 8 Old 02-11-2018, 07:24 PM
Member
 
Dave9354's Avatar
 
Join Date: Dec 2010
Posts: 55
Post Thanks / Like
Thanks (Given): 3
Thanks (Received): 4
Likes (Given): 4
Likes (Received): 14
Maybe just a bad gasket.
Dave9354 is offline  
post #5 of 8 Old 02-11-2018, 10:52 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
Quote:
Originally Posted by FearlessFront View Post
Their is a fellow on youtube who goes by the name Alex S.
He made a video of a New Briggs and Stratton winter engine he bought. It was leaking from the bottom of the block like what you are describing and it turned out their was a crack in the block on the bottom. He had to return the engine for a replacement. Either it got damaged during shipping or it was a lemon.
Add oil, keep the engine so you can either turn it over or raise it so you can look under it and see where the leak is coming from, clean that area and look for a small crack. If their is that is the issue. If you can return the engine do so, if not you are going to have to find a way to repair it by sealing the crack. Good luck, I hope I am wrong and it is not cracked, but that is what it sounds like since I have already heard of it happening in that exact spot.
I saw that video and I believe there was also visible damage to the box and packaging making it look like a shipping issue.

Dropped / Broken Engine:

New Replacement Engine:

Please direct all snow blower questions to the forums and not to me with PMs.

Last edited by Shryp; 02-11-2018 at 10:59 PM.
Shryp is offline  
Post Thanks / Like - 0 Thanks, 1 Likes, 0 Dislikes
Likes FearlessFront liked this post
post #6 of 8 Old 02-12-2018, 04:23 PM Thread Starter
Junior Member
 
Join Date: Jan 2018
Posts: 3
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 0
Likes (Given): 0
Likes (Received): 0
just an update, I have taken the front of the blower off (p.i.t.a.) and tilted the motor, I didn't see any indication of a crack on the outside, doesn't mean it doesn't have one, but anyways. I have verified the crankcase torques of 210lb-in - there are 3 different values on the interwebs, so i made sure that this was the torque values following the bolt pattern, they are good and they were good also from B&S. I removed a bronze spacer that was against the main pulley and on the crankshaft, by doing this, it moved the motor belt closer to the motor by maybe 1/8" and now its exactly lined up with the driveshaft. I have tightened everything up and cleaned up underneath, i verified its not coming from the oil spout or from the main bearing either, its def underneath, so I have put some strips of absorbant pads underneath after I made these changes and will monitor. I did 4 driveways worth of EOD slushy ice and it ate through it no problem. Will update if anything changes, I have warranty on the motor but its a pain because the machine is 200+ lbs, and if I can, I would just bring the motor in to the auth dealer, but I am tryingn to see if I can avoid that. those videos are good, btw, go figure quality control
make_shift is offline  
post #7 of 8 Old 02-12-2018, 06:25 PM
Senior Member
 
Join Date: Dec 2011
Location: Larkspur, CO
Posts: 399
Post Thanks / Like
Thanks (Given): 4
Thanks (Received): 14
Likes (Given): 5
Likes (Received): 52
Is it where the oil drain tube screws into the block? If so, try tightening this threaded tube with either Vice Grip pliers or putting a wrench on the drain cap and using that to tighten the threaded tube.
CO Snow is offline  
post #8 of 8 Old 02-12-2018, 07:52 PM Thread Starter
Junior Member
 
Join Date: Jan 2018
Posts: 3
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 0
Likes (Given): 0
Likes (Received): 0
Quote:
Originally Posted by CO Snow View Post
Is it where the oil drain tube screws into the block? If so, try tightening this threaded tube with either Vice Grip pliers or putting a wrench on the drain cap and using that to tighten the threaded tube.
no, its directly under the bolt at the bottom of the block, I already dried the area where the tube is and my tube does not tighten, you pull it straight out and it has an o-ring at the end; you push the tube back in after changing the o-ring. then you screw down the oil drain tube into the block - the threaded hole at the corner with the existing screw.
make_shift 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