[Vwdiesel] FW: engine rebuild didnt index head bolts

[mark shepherd]

Adamo, you were indeed a little casual about mentioning your engine type, 
however, here is something I dug up, but you had better get the engine 
specific book...

"Whether you have a Justy, DL or GL, changing the head gasket is a similar 
process across most Subaru...

 Loosen the cylinder head bolts in the opposite order of installation. Began 
with the outermost bolt and work towards the center of the cylinder head. 
Remove and inspect the cylinder head. Install a new cylinder head if it 
warrants. If you do not replace the cylinder head, clean the mating surface 
and oil new bolts and the threads before returning to the cylinder block.
Examine the head for the warpage. The warpage should not go above 0.0020 
inches. Install the new head gasket and position in the "up" position. Line 
it up with the dowels. Put the cylinder head on the cylinder block. Install 
the cylinder head bolts in a three-step process. Torque to 22 foot-pounds 
for the first step. Torque to 43 foot-pounds for the second step and torque 
to 47 foot-pounds in the third step."



Mark




----- Original Message ----- 
From: "Andrew .Libby" <libbybapa at gmail.com>
To: "adamo robison" <adamanderr at hotmail.com>
Cc: <vwdiesel at vwfans.com>
Sent: Wednesday, December 14, 2011 12:36 AM
Subject: Re: [Vwdiesel] FW: engine rebuild didnt index head bolts


> What?  We're talking about head bolts on a Subaru engine?  I never would
> have guessed that one.  Any info regarding head bolts will be engine
> specific and answers about VW engines won't apply.
>
> Andrew
>
> On Tue, Dec 13, 2011 at 3:54 PM, adamo robison 
> <adamanderr at hotmail.com>wrote:
>
>>
>>
>>
>> From: adamanderr at hotmail.com
>> To: mark at shepher.fsnet.co.uk
>> Subject: RE: [Vwdiesel] engine rebuild didnt index head bolts
>> Date: Tue, 13 Dec 2011 17:48:57 -0500
>>
>>
>>
>>
>>
>>
>>
>>
>> so second use is a lower torque...?
>> also can i just take the short block, heads already off to the car wash 
>> to
>> do the preliminary cleaning before breaking open case..
>> even if not for this build these questions are for my general info anyway
>> thanks..
>> ..will the car wash chemicals affect anything...especially will they
>> affect aluminum......
>>
>> hate to say it but this is my first and its a subaru turbo engine for my
>> baja beetle. but if this one goes well its on to my 1.5 na diesel with 
>> lots
>> of blowby.
>>
>> rebuild kit sources?
>>
>> thanks
>>
>>
>> is there anything i can visually inspect for when i look at the block
>> before cleaning.
>> cracks right.......certain carbon deposits......
>>
>> > From: mark at shepher.fsnet.co.uk
>> > To: Vwdiesel at vwfans.com; adamanderr at hotmail.com
>> > Subject: Re: [Vwdiesel] engine rebuild didnt index head bolts
>> > Date: Tue, 13 Dec 2011 21:56:26 +0000
>> >
>> > Any bolt any spot, but these are officially single use.
>> > However have them all in a row and check their lengths. If they are all
>> the
>> > same and within say 0.5mm of spec then I would reuse.
>> > When doing angular torques, do approx 45 degrees rather than 90 
>> > degrees.
>> I
>> > find this generally sufficient to enter into the plastic range.
>> > Levelling of torque gauge reading is what I prefer, and  for  a second
>> user
>> > bolt is around 90 to 95lbft compared with 105ish originally...
>> >
>> > Mark
>> >
>> >
>> > ----- Original Message -----
>> > From: "adamo robison" <adamanderr at hotmail.com>
>> > To: <vwdiesel at vwfans.com>
>> > Sent: Tuesday, December 13, 2011 8:59 PM
>> > Subject: [Vwdiesel] engine rebuild didnt index head bolts
>> >
>> >
>> > >
>> > > so i started rebuilding an engine but neglect to keep track of the
>> > > position the head bolts came out of because i thought they were a
>> torque
>> > > to yield? item that would have to be replaced anyway....did i mess up
>> or
>> > > can they just go back in any location or do i buy new ones anyway?
>> > > thanks again
>> > >
>> > > _______________________________________________
>> > > Vwdiesel mailing list
>> > > Vwdiesel at vwfans.com
>> > > http://www.audifans.com/mailman/listinfo/vwdiesel
>> >
>>
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