Oil Blowing Out Dipstick Tube
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=6978
Printed Date: April-19-2024 at 11:47pm
Topic: Oil Blowing Out Dipstick Tube
Posted By: quinner
Subject: Oil Blowing Out Dipstick Tube
Date Posted: June-06-2007 at 9:34am
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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!! ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1143" rel="nofollow - Mi Bowt |
Replies:
Posted By: TRBenj
Date Posted: June-06-2007 at 9:47am
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Too much oil? ------------- |
Posted By: 6strings
Date Posted: June-06-2007 at 10:18am
| Clogged PCV valve? |
Posted By: 9360SAN
Date Posted: June-06-2007 at 10:57am
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check oil to see isn't milky color,if yes,it will boil since water leak in. ------------- Go on wakeboard |
Posted By: nuttyskier2002
Date Posted: June-06-2007 at 1:53pm
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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 ------------- 95 Malibu Echelon w/Mercruiser 350 Magnum Skier Former boats: 88 Ski Centurion Tru Trac II 59 Chris Craft Capri (woody) |
Posted By: bkhallpass
Date Posted: June-06-2007 at 2:51pm
Another HW signature?  BKH------------- Livin' the Dream |
quinner wrote:Posted By: eric lavine
Date Posted: June-07-2007 at 7:09am
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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 ------------- "the things you own will start to own you" |
Posted By: nuttyskier2002
Date Posted: June-07-2007 at 9:02am
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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. ------------- 95 Malibu Echelon w/Mercruiser 350 Magnum Skier Former boats: 88 Ski Centurion Tru Trac II 59 Chris Craft Capri (woody) |
Posted By: quinner
Date Posted: June-07-2007 at 9:09am
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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! ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1143" rel="nofollow - Mi Bowt |
Posted By: Hollywood
Date Posted: June-07-2007 at 9:32am
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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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Posted By: quinner
Date Posted: June-11-2007 at 7:47pm
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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. ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1143" rel="nofollow - Mi Bowt |
Posted By: eric lavine
Date Posted: June-12-2007 at 7:21am
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did he trade it for a CC? ------------- "the things you own will start to own you" |
Posted By: quinner
Date Posted: June-12-2007 at 8:56am
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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.
------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1143" rel="nofollow - Mi Bowt |
Posted By: gigem75
Date Posted: June-15-2007 at 1:38pm
| We do a lot of "prop checks" |
Posted By: M3Fan
Date Posted: June-15-2007 at 2:38pm
Yep, you have to check that "muffler bearing" pretty often. ------------- 2000 SN GT40 w/99 Graphics/Gel 2016 SN 200 OB 5.3L DI https://forum.fifteenoff.com |
Posted By: jbear
Date Posted: June-15-2007 at 8:58pm
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And quinner has to check the "blow-by"
john ------------- "Loud pipes save lives" AdamT sez "I'm Canadian and a beaver lover myself"... |
Posted By: nuttyskier2002
Date Posted: June-15-2007 at 9:05pm
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You guys crack me up! ------------- 95 Malibu Echelon w/Mercruiser 350 Magnum Skier Former boats: 88 Ski Centurion Tru Trac II 59 Chris Craft Capri (woody) |