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HELP! Oiling ring may be upside down - need to tear apart?
Damm damm damm
Just rebuilt cylinders 4-6 on my 79 3.0 and realized that not only are the two top rings (obvious) marked for direction the oiling ring is too... I did NOT check these when I installed 1-3 on the other side. I looked and at first glance these rings seem symmetrical??? Are they? and do I need to tear this down.. (just to make sure I have my terminology right I mean the lower, outer ring that goes over the spring...) 
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Sam 1971 911T 3.0SC (Jezebel) (Work in progress) 1971 911 Gulf relplica (Gloria) (SOLD  )2013 Tacoma TRD - Expedition ready 2010 BMW R1200 GSA |
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03-02-2014, 08:03 AM
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Join Date: Jul 2001
Location: mt. vernon Wa. USA
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you are good!
I found this on the Lindsey Racing website.............
 regards, al
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[B]Current projects: 69-911.5, Previous:73 911X (off to SanFrancisco/racing in Germany).77 911S (NY), 71E (France/Corsica), 66-912 ( France), 1970 914X (Wisconsin) 76 911S roller..off to Florida/Germany RGruppe #669 http://www.x-faktory.com/ |
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03-02-2014, 08:34 AM
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Get a magnifying glass and look closely at the oil ring. I think you will find a small "step" or bevel on one edge where it touches the cylinder. I just went out to my garage to confirm. The ring is designed to scrape the oil away so it doesn't push too much oil into the combustion chamber. If they are backward you will have high oil consumption and possible other problems like oil fouled plugs.
-Andy
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72 Carrera RS replica, Spec 911 racer |
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03-02-2014, 10:44 AM
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For the teardown, you might be able to do a shortcut. I've taken my engine down a couple of times to replace broken rings. You can remove the heads with the cams and rockers all installed as a unit. You will have to remove the stud in the chain housing that holds the tensioner. It gets in the way of the chain. Other than that it will all come off without taking it apart. You will save breaking loose the cam tower from the heads and all the work installing the rocker shafts.
-Andy
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72 Carrera RS replica, Spec 911 racer Last edited by Eagledriver; 03-02-2014 at 10:49 AM.. Reason: spelling |
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03-02-2014, 10:48 AM
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