Ariens B&S engine spitting oil


Old 11-07-08, 02:09 PM
Thread Starter
Join Date: Jul 2006
Location: Central New Hampshire
Posts: 754
Ariens B&S engine spitting oil

Ariens Zero-Turn Ariens#915037-00015 B&S engine#31H777-0110-E1 spitting oil from feul pump impusle hose. The impulse hose is attatched from the pump to the oil filler tube. Took off the hose and it was full of oil. Would this be caused by a dirty breather? Oil was just changed to 5-w30 per owners manual when using under 40 degrees.
Sponsored Links
Old 11-07-08, 03:17 PM
Join Date: Jun 2006
Location: St. Louis
Posts: 2,365
Sounds like it may have been over filled during the oil change. Have a good one. Geo
Old 11-14-08, 01:21 PM
Thread Starter
Join Date: Jul 2006
Location: Central New Hampshire
Posts: 754
Problem solved!!

The Ariens problem has been solved. Customer had changed oil to 5W30 synthetic from SAE30HD convential oil. The synthetic is so thin that it will flow easily thru any hose that has any amount of suction. This would not have been a problem if the engine wasn't quite so old (its a 2002 model) and had so much time on it with the SAE30 oil. Hour meter shows 365 hours. Customer bought it used. Hour meter could have been disconected or not been working before he got it.
Moral of the story: Do NOT change to synthetic oil if the engine is more than 2 years old!
Old 11-14-08, 08:43 PM
cheese's Avatar
Forum Topic Moderator
Join Date: Jul 2001
Location: USA
Posts: 16,814
I think the %w part is where the problem is. Synthetic oil works well in most engines no matter how old they are, but if you choose oil that is too thin, you'll have problems even in new engines.

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 Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Display Modes