Date: Sun, 13 Feb 2011 22:23:38 -0500
Reply-To: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Subject: Re: General engine bolt/nut sizes
In-Reply-To: <8B150418AD2E44CF9E9C0162E271E001@alfonshaar.local>
Content-Type: text/plain; charset="us-ascii"
That engine was taken apart for a reason. It is really unlikely that it will
be good just based on re-assembly.
The cases on these engines twist and turn and go out of shape resulting in
bearing problems and the inability for the heads to seal on the top of the
cylinders.
With the case halves apart look real carefully at the center bearing webs
where they meet. If you cannot see the machining marks and the surfaces are
worn then the case is basically garbage without a whole bunch of expensive
machine work. Same goes for where the cylinders meet the case.
The main nuts for the bearing get a special seal nut to try to keep oil in.
Same for the oil pump nuts. They are one time. The rod nuts should also be
replaced. Best results for the heads would be to replace those nuts and make
sure the washers are the proper extra thick through hardened type.
Dennis
-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Joe Luther
Sent: Sunday, February 13, 2011 3:24 PM
To: vanagon@GERRY.VANAGON.COM
Subject: General engine bolt/nut sizes
On a related note, is there a source for the hardware used elsewhere in the
1983 2.0 air cooled engine assembly? I would like to replace all of the
screws/nuts/bolts while the engine is going back together, the disassembler
(PO) just kept everything in a can mixed together because he knew where it
went by heart. I don't. I work for a German machine company so I have some
various metric hardware left over from projects, I might have a lot of what
is needed already.
On those nuts that hold the crankcase halves etc together....do you guys
typically use self locking nuts or do regular nuts with blue loctite do the
trick? I haven't laid hands on a Bentley manual yet, all I have to work
with is a Haynes and it's not long on detail other than torque values.
Thanks
Joe
-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM] On Behalf Of
Old Volks Home
Sent: Friday, February 11, 2011 5:34 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Exhaust collector bolt/nut sizes
Gregg -
While other posts debate the good and bad of stainless hardware (of which I
am in the camp of good ole original 1 time use and not stainless), no one
has really fully answered your size question adequately. I offer the
following, complete with VW numbers:
Collector to Header Pipe
N01024416 8x30 (13mm Hex) Bolt Qty 4
Collector to Collector Pipe Going to Cat
N01036112 8x65 (13mm Hex) Bolt Qty 3
N90095501 8x15 Flat Washer Qty 3
Note: Place these on the "nut" side
Note: I have used N01152520 8x16 Flat Washer 025251200 8mm Concave Washer
Qty 3
Note: Place these on the "nut" side
Note: I have used N0122282 8x17 "Wavy Washers"
311101463 8mm (13mm Hex) Locking Hex Nut Qty 3
Collector Pipe to Cat Converter
N01034510 8x45 (13mm Hex) Bolt Qty 3
311101463 8mm (13mm Hex) Locking Hex Nut Qty 3
Cat Converter to Muffler
N01024416 8x30 (13mm Hex) Bolt Qty 3
N01152520 8x17 Flat Washer Qty 3
Note: Place these on the "nut" side
311101463 8mm (13mm Hex) Locking Hex Nut Qty 3
All above fits 86-91
Exhaust Hardware Class 101 dismissed :)
--
Jim Thompson
84 GL 1.9 "Gloria"
84 Westfalia 2.1 "Ole Putt"
72 411 Station Wagon "Pug"
75 914 1.8 "Nancy"
Full Timing Since March 1999
oldvolkshome@gmail.com
http://www.oldvolkshome.com
***********************************
On Fri, Feb 11, 2011 at 1:21 PM, Gregg Carlen <gregg.carlen@gmail.com>
wrote:
> On my 90 Westy, I'm planning tomorrow to replace the exaust collector
> (Bentley calls it an Exhaust manifold, P.26.9) along with the 3
> gaskets. As with any exhaust that's lived past its useful life, the
> nuts and bolts will have to be cut off. Anyone know what the sizes are
> of the 7 bolts/nuts that hold this thing to the associated pipes?
> Bentley shows them, but I can't find an indication of what size they
> are. I've got to pick some up at FLAPS or my local Napa, stainless steel,
I would assume if I can.
>
> In case your wondering, I really think its only the donut seal that's
> bad, but that collector isn't looking very good, so I'm just going to
> replace it along with the gaskets anyway. Strangley enough, the rest
> of the pipes (and
> cat/muffler) look in good shape.
>
> TIA,
> Gregg
> 90 Westy