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 B&S ---Model 28 OHV- Blowing oil through the PCV vent.

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CRAFTSMAN MUDDER
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B&S  ---Model 28 OHV- Blowing oil through the PCV vent. Empty
PostSubject: B&S ---Model 28 OHV- Blowing oil through the PCV vent.   B&S  ---Model 28 OHV- Blowing oil through the PCV vent. Icon_minitimeApril 3rd 2023, 9:47 pm

Curious what others have done to cure oil blowing out the PCV vent. Model 28 briggs OHV, ungoverned. I'm aware why it's doing it, and have already opened the drain holes, and added 2, into the inner PCV cover. No such luck, next resort may just be a catch-can. Looking for help to remedy this before adding a oil catch can.
***EDIT*** -Should mention, engines runs great, pulls hard and lots of power. Dosent consume oil. Only blows oil out the PCV while bagging the snot out of it.
ThanksB&S  ---Model 28 OHV- Blowing oil through the PCV vent. 20230410


Last edited by CRAFTSMAN MUDDER on April 4th 2023, 1:40 pm; edited 1 time in total
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Brianator
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B&S  ---Model 28 OHV- Blowing oil through the PCV vent. Empty
PostSubject: Re: B&S ---Model 28 OHV- Blowing oil through the PCV vent.   B&S  ---Model 28 OHV- Blowing oil through the PCV vent. Icon_minitimeApril 3rd 2023, 9:54 pm

If the oil level is good (not overfilled) then the only proper way to solve it is new piston rings or possibly valve guides unfortunately, a catch can is merely a band aid but it works.


My All Terrain Tractors:
- "The WarHorse" ~ 1984 Sears Craftsman LT(V)11 (MTD Built) (Romping in Progress!)
- Roper "Trailblazer" ~ 1986 Roper LT110CR (Trailblazing in Progress!)
- The "Mud Duck" ~ 1969 Bolens 1225 Hydro (2022 Build Off 2nd place!)
- The "Silver Bullet" ~ 1984 Sears Craftsman LT(V)11 (MTD Built) (Part 1)
- The "Silver Bullet" (Take 2) ~ 2024 Build Off entry (Work in progress)
- Roper "Offroadster" ~ 1979 Roper T4328 (Romping in Progress!)
- 1973 Massey Ferguson MF12 ~ (Sold to a good home)



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Rustbucket Garage
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B&S  ---Model 28 OHV- Blowing oil through the PCV vent. Empty
PostSubject: Re: B&S ---Model 28 OHV- Blowing oil through the PCV vent.   B&S  ---Model 28 OHV- Blowing oil through the PCV vent. Icon_minitimeApril 3rd 2023, 10:10 pm

I’m with @Brianator. Parts for those model 28s are stupid cheap. Get new rings, lap the valves in, and send her. Should cost about 50 bucks all in.
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RichieRichOverdrive
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B&S  ---Model 28 OHV- Blowing oil through the PCV vent. Empty
PostSubject: Re: B&S ---Model 28 OHV- Blowing oil through the PCV vent.   B&S  ---Model 28 OHV- Blowing oil through the PCV vent. Icon_minitimeApril 4th 2023, 10:19 am

It could just be a head gasket, these OHVs are bad about that. It’s an afternoon job to do rings and a head gasket in these things though, and they are cheap.
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MightyRaze
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B&S  ---Model 28 OHV- Blowing oil through the PCV vent. Empty
PostSubject: Re: B&S ---Model 28 OHV- Blowing oil through the PCV vent.   B&S  ---Model 28 OHV- Blowing oil through the PCV vent. Icon_minitimeApril 4th 2023, 2:52 pm

Probably over revving.  Install a catch can and send it.  :-)

I'm with Rich though on the head gasket. Keep an eye on that blowby.


B&S  ---Model 28 OHV- Blowing oil through the PCV vent. Sig115PROJECTS:
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RichieRichOverdrive
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B&S  ---Model 28 OHV- Blowing oil through the PCV vent. Empty
PostSubject: Re: B&S ---Model 28 OHV- Blowing oil through the PCV vent.   B&S  ---Model 28 OHV- Blowing oil through the PCV vent. Icon_minitimeApril 4th 2023, 2:57 pm

Just a leak down test would tell you if you had a bad head gasket. Even just put a rubber tip air nozzle up to the spark plug hole on TDC of the compression stroke and you’ll probably hear it.

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CRAFTSMAN MUDDER
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B&S  ---Model 28 OHV- Blowing oil through the PCV vent. Empty
PostSubject: Re: B&S ---Model 28 OHV- Blowing oil through the PCV vent.   B&S  ---Model 28 OHV- Blowing oil through the PCV vent. Icon_minitimeApril 5th 2023, 5:23 pm

Thanks for the input guys, appreciate it! Unfortunately locally , a set of standard sized rings are around 100-110$ CA lol. Online, about 75. If anyone has a link or knows of a site with some realistic prices for rings, that would be great. Thanks again! B&S  ---Model 28 OHV- Blowing oil through the PCV vent. 20230411

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Brianator
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B&S  ---Model 28 OHV- Blowing oil through the PCV vent. Empty
PostSubject: Re: B&S ---Model 28 OHV- Blowing oil through the PCV vent.   B&S  ---Model 28 OHV- Blowing oil through the PCV vent. Icon_minitimeApril 5th 2023, 6:32 pm

I found them for my 28 on Amazon and eBay for $60-65 with shipping but could differ from yours. I definitely wouldn't replace them until you know for sure as it's not just the price of the rings but you'll need a new head gasket and sump gasket set too, a full engine kit with seals will set you back $60-70 Canuck bucks if you do the right thing and get an actual B&S kit which I personally do.


My All Terrain Tractors:
- "The WarHorse" ~ 1984 Sears Craftsman LT(V)11 (MTD Built) (Romping in Progress!)
- Roper "Trailblazer" ~ 1986 Roper LT110CR (Trailblazing in Progress!)
- The "Mud Duck" ~ 1969 Bolens 1225 Hydro (2022 Build Off 2nd place!)
- The "Silver Bullet" ~ 1984 Sears Craftsman LT(V)11 (MTD Built) (Part 1)
- The "Silver Bullet" (Take 2) ~ 2024 Build Off entry (Work in progress)
- Roper "Offroadster" ~ 1979 Roper T4328 (Romping in Progress!)
- 1973 Massey Ferguson MF12 ~ (Sold to a good home)



                             Click Here To See The DIY and Build Threads I've Created!

                                            ~My Real Hobby Is Collecting Projects!~
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Rustbucket Garage
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B&S  ---Model 28 OHV- Blowing oil through the PCV vent. Empty
PostSubject: Re: B&S ---Model 28 OHV- Blowing oil through the PCV vent.   B&S  ---Model 28 OHV- Blowing oil through the PCV vent. Icon_minitimeApril 5th 2023, 6:35 pm

You could probably get away with a no-name head gasket and intake gaskets and the like. Top shelf aftermarket like Stens is good too. I’d be wary of “eBay specials” for the sump gasket though, as that can affect end play.
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B&S  ---Model 28 OHV- Blowing oil through the PCV vent. Empty
PostSubject: Re: B&S ---Model 28 OHV- Blowing oil through the PCV vent.   B&S  ---Model 28 OHV- Blowing oil through the PCV vent. Icon_minitime

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