Date: Sun, 29 May 2011 14:58:49 -0400
Reply-To: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Subject: Re: Yeppers -- failed oil pressure switch alright.
In-Reply-To: <10af01cc1e2a$92868190$6401a8c0@PROSPERITY>
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Those bolts should be 20mm, (.787"), long and a short 6mm allen key has no
problem getting the upper out from behind the pulley. Replace the bolts
every time and there should be no problem. I hate when these bolts are
replaced with hex heads and I can't get a socket on them. Even worse is when
the hex heads and large washers cause the flange to pipe connection to
crack. The large water pump inlet pipe needs 25mm long bolts. A4 stainless
works well for both of these.
Dennis
-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Scott Daniel - Turbovans
Sent: Sunday, May 29, 2011 2:02 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Yeppers -- failed oil pressure switch alright.
hey I'll tell you a *great* use for a 12mm hex head M8 x 1.25 bolt...
one about 1 1/4 inches long or so.
I'll take all of those I can get ..
because ..
on your water pump ....that lower pipe, uses two 6mm allen bolts there..
One of them is not so bad ...you can access it fairly well.
One can be a lot harder to get at , and those 6mm 'insides' strip out very
easily.
Two 12mm hex head bolts are perfect for attaching that pipe ..the one
toward the crank pulley.
I have spent more than on hour on *just one of those alen screws* more than
once.
12mm hex head bolt is SO much easier.
----- Original Message -----
From: "David Beierl" <dbeierl@ATTGLOBAL.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Sunday, May 29, 2011 9:18 AM
Subject: Re: Yeppers -- failed oil pressure switch alright.
> At 12:01 PM 5/29/2011, Rocket J Squirrel wrote:
>>(1981.9L) Got the tin off the bottom of the left head. Three 13mm and
>>one 12mm? Who designs such things?
>
> Sounds like someone put a Japanese bolt in there. J.I.S. bolts have a
> 12mm head where M-series have 13.
>
>
>>The switch reads open to frame with the engine off, so it's a goner.
>>Found the fossilized remains of what appears to be an ancient
>>Pre-Columbian rubber boot on the switch. After than crumbled off, the
>>the brass push-on connectors had nice green verdigris.
>
> Because of the sliding action the terminal is self-cleaning to a
> considerable degree. This is a signal connection so contact
> resistance may not be so critical.
>
>>When I pull the switch, will there be much engine oil loss?
>
> Depends how quick you are putting the new one back. Generally
> speaking I'd say not much, especially if the engine is cold. But if
> you have to go back to the house to get the sender you might lose
> some. It would be limited to what's in the galleries though, I'm
> quite sure the oil pump would drastically inhibit siphoning from the sump.
>
> Yrs,
> d
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