Well I say you should check the o-ring between the timing cover and the
engine block.
Here is a good website showing how to do the repair, and why it failed.
http://www.prb2.com/altima/
(also has a good write up on the timing chain guide issue on these motors)
Bill wrote:
>> > I have an oil leak that finds its way to the passenger side CVJ and
>> > then slings out. I cleaned the underside well then got underneath
>[quoted text clipped - 78 lines]
>> Also covered the tin plug in that access hole. Now it's drying and
>> hoping for the best tomorrow.
>
>Leak still there. It seems to be RPM/duration dependent. A seven
>mile trip to the post office this morning, parking in a fairly clean
>spot, left a softball sized oil spill in the time it takes to check
>one's mail. So, I'm thinking it's seeing the oil pressure and
>therefore probably right near that oil pump output ****t leading to the
>oil filter. The PCV breather separator would see oil but not under
>pressure. The oil filter aluminum stand seemed fine and a paper towel
>under it didn't ac***ulate oil when the towels were around the
>breather and timing cover. I have changed the oil pressure sensor,
>that more than a month ago. Wish I could run the engine without the
>power steering pump in place but without the water pump that would
>seem foolish.
>
>It could be a cracked block that I just don't see. When it went into
>the transmission shop for a leak at the differential, first they
>changed the oil seals but that didn't help. That tranny leak had been
>there since before the engine swap out a year ago and those guys said
>they replaced the seals. When the transmission place changed the
>seals again and it still leaked the mechanic showed me how the
>passenger axle seemed to be into the differential at a slight angle
>and that was probably causing the leak. We left it at that until a
>month or two later I asked it they could put on a rebuilt head and
>they said yes to that and fixing the transmission leak. I had gotten
>promised multiple time by them that I would get it back without
>leaks. Afterwards they denied that agreement and claim the oil leak
>must be caused by something broken before they took the engine out and
>it's not their responsibility. Anyway, once the engine was out a
>thought was that the mounting bracket for the CVJ was bent although
>not noticable to the eye. The engine that had been taken out the
>previous year had some years before seen a bad front accident. A
>thought was that the same CVJ brace had gone onto the replacement
>engine at that time when it at least got a short block and again last
>year with the used engine and was presently still causing the leak. I
>had a brace with the parts from the engine replaced last year and
>noticed there is a placement tit on the brace. I suggested that tit
>might not have been in place and a side of the CVJ mounting bracket
>might not have been sitting flat. No answer on that but I did give
>them the other brace to put in as well as a new axle while the engine
>and transaxle was out. There's no leak from the transaxle now. That
>brace is a hefty piece of steel but this is another block.
>
>Unless the engine put in last October had been in a bad front end as
>well there isn't any reasonable way this block can have a crack at the
>power steering or CVJ brackets. Besides if it were a crack at the CVJ
>mounting bracket bolt holes the oil wouldn't be falling from the
>inside power steering bolt (with the sup****t pipe) onto the CVJ when
>the engine is run with no paper towels and the wheels not moving and
>the CVJ not slinging the oil.
>
>I think I'll go another week sliding a piece of cardboard under the
>car at work and take it when I leave and next Saturday do the paper
>towel test again but this time after putting it back together taking
>it out on the road where oil pressure will be up there. Also, the
>stresses of a drive might have an effect on the leak.
>
>Bill
>Heard County, Georgia, deep in the Southland, a few short miles from
>the setting of the book/movie I WAS A PRISONER ON A GEORGIA CHAIN GANG
--
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