Mercruiser 5.0 tks alpha one gen. 2

[mdaddy]

2008 Mercruiser 5.0 tks with alpha one gen. 2 outdrive
Serial#: 1A322719

Replaced oil pressure switch yesterday due to bad leak through the switch (replaced with oem switch- no more leaking oul through switch)... but out today for test drive today and engine kept blowing a lot of oil from dipstick tube immediately after accelerating, with immediate drop in oil pressure, bit no overheating issues. This occured several times after checking and refilling missing oil- engine was wet with oil around dipstick. At start up oil pressure is 0-80 psi at idle, but It's a recurring problem - any ideas? Feedback will be really apprecited! Thanks!

 

[Scott Danforth]

80 psi is fine with cold oil.

Oil blowing out dipstick is excessive blowby

Do a compression test

 

[mdaddy]

this is something new...possible causes?

 

[Rick Stephens]

Do you know history and how many hours on motor?

 

[Scott Danforth]

this is something new...possible causes?

Google causes of high blowby.

 

[mdaddy]

Do you know history and how many hours on motor?

purchased in '08 but less than 50-60 hrs.... been sitting up for a few years due to illness, but always ran great.

 

[Rick Stephens]

Always been said low use is harder on mechanical stuff than high use. Compression test time.

 

[mdaddy]

ok, will do and check back

 

[mdaddy]

ok... inspected further and oil is coming from around harmonic balancer pulley and being slung everywhere, so I'm thinking front oil seal. Anything on where to find seal replacement info./videos, because it looks pretty straightforward as far as replacment goes? Also, the seal itself is pretty expensive... any cheaper parts alternatives. Thanks guys.