[Vwdiesel] retorqueing

[Val Christian]

Rolf,

I just did a head gasket on my 91 NA Jetta.  I used the OEM gasket
(G---- something brand).  I have the corresponding Bentley, which 
called for a two step torque wrench torquing.  That's followed by 
two 90 degree tightens.  Then the engine is warmed up to temp, and 
while warm, as quickly as possible, another 90 degrees are done.
Then, after 1000 miles, a final 90 degree increment is added.  
That's one full rotation (360 degrees) after something like 55 ft lbs.
It's allot of torque, but all the bolts turned OK, and some easier 
than others (ouch?  wow!).

I'm only 25% of my way to the 1000 mile torque, so I can't tell you if
I broke any bolts on the final torque (yet).

The bolts only get tightened.  There is NO loosening and then retorque.

I suggest that you double check your Bentley.  You might find instructions
there.  

Val


> 
> hey all
> I have run a couple hundred miles on my rebuilt head w/o retorquing
> there was no heat-up/loosen/tighten spec on the slip that came with the=20=
> 
> head gasket (Erling)
> and I couldn't find anything in Bentley
> but am I doing something wrong?
> am I supposed to loosen and re-torque my head bolts at some point?
> (I dimly remember something about 1000 miles)
> what's the collective wisdom here?
> (this is a '93 Eurovan diesel Canadian n/a AAB-type engine)
> (the torque sequence I followed - per Erling - was 30Nm /44Nm /90=B0/90=B0=
> -=20
> I did that all cold w/ no heat-up/run-in or anything)
> thanks
> Rolf=
> 
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