Oil Blowing Out Dipstick Tube |
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quinner
Grand Poobah Joined: October-12-2005 Location: Unknown Status: Offline Points: 5828 |
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Posted: June-06-2007 at 9:34am |
Neighbor friend of mine has a SB Chevy 350 in his I/O Chapperell which has begun blowing oil out the dipstick while under load over 3,000rpm. Any ideas what may be causing this and/or the fix?
My guess is blow-by, could this be caused by rust on the cylinders over the winter? Would pouring trans fluid down the carb or using sea-foam or similar be of any help? Thanks in advance for the help!! |
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TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Offline Points: 21122 |
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Too much oil?
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6strings
Senior Member Joined: August-05-2004 Location: Indiana Status: Offline Points: 218 |
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Clogged PCV valve?
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9360SAN
Newbie Joined: August-31-2006 Location: Hong Kong Status: Offline Points: 23 |
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check oil to see isn't milky color,if yes,it will boil since water leak in.
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Go on wakeboard
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nuttyskier2002
Gold Member Joined: September-28-2005 Location: United States Status: Offline Points: 669 |
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Oil blowing out of the dipstick tube means high crankcase pressure. If the PCV system (valve and hoses) is in good shape, the most likely cause is worn piston rings. How many hours are on the engine? Trans fluid or engine fogging is only a preventative measure to take when winterizing. It will not fix worn rings or damaged cylinder walls. Brian
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95 Malibu Echelon w/Mercruiser 350 Magnum Skier
Former boats: 88 Ski Centurion Tru Trac II 59 Chris Craft Capri (woody) |
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bkhallpass
Grand Poobah Joined: March-29-2005 Location: United States Status: Offline Points: 4723 |
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Another HW signature? BKH |
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Livin' the Dream
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eric lavine
Grand Poobah Joined: August-13-2006 Location: United States Status: Offline Points: 13413 |
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how does the engine run besides that? remember one other guy on the site had this problem and it ended up being a hole in the piston, it could be blow-by,
it sounds like a go-fast boat (chapperell) and sees high rpms, a good compression test will tell the story |
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"the things you own will start to own you"
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nuttyskier2002
Gold Member Joined: September-28-2005 Location: United States Status: Offline Points: 669 |
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Eric is right on the mark! I didn't ask enough questions first. Did it start doing this all of a sudden? Compression test.
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95 Malibu Echelon w/Mercruiser 350 Magnum Skier
Former boats: 88 Ski Centurion Tru Trac II 59 Chris Craft Capri (woody) |
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quinner
Grand Poobah Joined: October-12-2005 Location: Unknown Status: Offline Points: 5828 |
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Thanks Guys,
Not a go-fast, just a 23' cuddy and used relatively lightly, probably around 500hrs (no meter). Boat runs fine other than the oil issue. I will pass on the suggestions including put some heavy oil in it and trade it in for a Nautique! |
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Hollywood
Moderator Group Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13512 |
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BKH, I saw that one right away. It was almost too obvious to cut up, besides I give quinner enough sh*t already. I spread a little over to reid and just hit up MM in another thread.
Just for the hell of it, here's what I would have used off that post.
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quinner
Grand Poobah Joined: October-12-2005 Location: Unknown Status: Offline Points: 5828 |
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Did a compression test and 1 cylinder was completely dead while 2 others were very low. He traded the boat in today.
Thanks for the help guys. |
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eric lavine
Grand Poobah Joined: August-13-2006 Location: United States Status: Offline Points: 13413 |
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did he trade it for a CC?
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"the things you own will start to own you"
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quinner
Grand Poobah Joined: October-12-2005 Location: Unknown Status: Offline Points: 5828 |
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They bought another Chaparral, his wife insisted on having a boat with a toilet, told her that's what the teak was for, she wasn't buying it.
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gigem75
Senior Member Joined: November-12-2005 Location: United States Status: Offline Points: 239 |
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We do a lot of "prop checks"
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M3Fan
Grand Poobah Joined: October-22-2005 Location: United States Status: Offline Points: 3185 |
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Yep, you have to check that "muffler bearing" pretty often. |
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2000 SN GT40 w/99 Graphics/Gel
2016 SN 200 OB 5.3L DI https://forum.fifteenoff.com |
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jbear
Grand Poobah Joined: January-21-2005 Location: Lake Wales FL. Status: Offline Points: 8193 |
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And quinner has to check the "blow-by"
john |
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"Loud pipes save lives"
AdamT sez "I'm Canadian and a beaver lover myself"... |
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nuttyskier2002
Gold Member Joined: September-28-2005 Location: United States Status: Offline Points: 669 |
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You guys crack me up!
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95 Malibu Echelon w/Mercruiser 350 Magnum Skier
Former boats: 88 Ski Centurion Tru Trac II 59 Chris Craft Capri (woody) |
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