One of the reasons the valve cover leaks is that after the head has been
warped only the gasket side has been cut true and the valve cover side is
still warped.
It's very important to retorque the head every few thousand miles. If it has
recently been cut and reinstalled the head should be retorqued after the first
startup and heat cycling and then about 100 miles after that and 500 miles
after that and then once every 2-3,000 miles. More than the service manual
recommends but it's better to be safe than sorry. Bob Sharp recommended the
retorque after the first startup.
Mike
----- Original Message -----
From: Jim Cawrse
To: mike datsunman ; Mike ; Datsun Roadsters
Sent: Monday, September 02, 2002 10:36 AM
Subject: Re: oil leak?
There is no easy way to fix a rear seal problem although I noticed after
my car overheated, it seemed to greatly reduce the rear seal leak.
I figure it sort of "heat formed" the waxy rope thing rear seal.
I do not recommend this method!!
As far as valve cover sealing, smear a little wheel bearing grease
on the gasket surfaces. They always want to weep a little at
the front and back.....
Best Regards,
Jim
Chesapeake Va
----- Original Message -----
From: datsunmike
Sent: Sunday, September 01, 2002 7:59 PM
To: Mike; Datsun Forum
Subject: Re: oil leak?
Run on is usually caused by too low an octane although too much advance or
a
high idle can cause the problem. I suggest using high test.
Mike
----- Original Message -----
From: "Mike" <datsun_sports@hotmail.com>
To: "Datsun Forum" <datsun-roadsters@autox.team.net>
Sent: Saturday, August 31, 2002 1:09 PM
Subject: oil leak?
> well thx to datsunmike I have the car idling pretty good although it
needs
a
> little more attention. it runs on after I cut the ignition off. what
usually
> causes this?
>
> I was getting ready to take the car for a test run. I went into the
house
> for my wallet and as I walked out of the garage I noticed a dinner
plate
> sized oil pool under the engine. during the carb adjustment I noticed
that
> oil was leaking from the front corner on the driver side of the valve
cover
> gasket. I tightened the two bolts down and it stopped. hopefully it was
run
> off from there getting to the floor although I cannot seem to find its
> course. with the engine running the drip increased a little however
there
> may be excess somewhere and the engine wiggling may be causing it to
drip.
I
> had the engine running for about 30 minutes during the carb adjustment.
when
> I look under the vehicle the drip is running down the tranny where it
meets
> the engine. I hope this is not a rear seal problem. it did not have
this
> problem last night when I was playing with it for several hours. I
checked
> the stick and it showed good but I did it with the engine still hot. so
im
> waiting a few minutes to check it again.
>
>
> any comments, prayers, etc?
>
> thx,
>
> mike in las vegas
>
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