Missing the Point (was: Any drawback to having a hydro headonaJH?)

[jtoomasson at yahoo.com (Jeff Toomasson)]

I guess I should also clarify that by "interchangeable", I meant the running
gear within the head (versus the heads as a whole).

thx, JT
----- Original Message ----- 
From: "ATS - Patrick Bureau" <txrocco@sbcglobal.net>
To: "Jeff Toomasson" <jtoomasson@yahoo.com>; <scirocco-l@scirocco.org>
Sent: Wednesday, September 17, 2003 8:36 AM
Subject: RE: Missing the Point (was: Any drawback to having a hydro head
onaJH?)


> well only way to confirm the pump is to piop it out and look at the part #
> on it.
>
> but if it had the mechanical pump (30m hub versus the 36mm hub) you would
> have a clatter at the head.. (not enough oil getting pressure to it)
>
> as far as I know (and I will admit my knowledge is very limited here) but
I
> think the hydro and mechanical heads are interchangeable.
>
>
> ATS - Patrick Bureau - txrocco@sbcglobal.net
> ----------------------------------------------
> MSN:ATSGTX@hotmail.com |YAHOO:ATSGTX@yahoo.com
> ICQ:32918816           |AIM:Texasscirocco
> ----------------------------------------------
>
>
> =>-----Original Message-----
> =>From: scirocco-l-bounces@scirocco.org
> =>[mailto:scirocco-l-bounces@scirocco.org]On Behalf Of Jeff Toomasson
> =>Sent: Wednesday, September 17, 2003 10:17 AM
> =>To: scirocco-l@scirocco.org
> =>Subject: Missing the Point (was: Any drawback to having a hydro head on
> =>aJH?)
> =>
> =>
> =>Somehow this thread got distorted and I still really haven't gotten the
> =>answer I was after. So, I'll rephrase:
> =>
> =>What is the potential harm of running a hydraulic head on a JH block
that
> =>should, by all rights, have the smaller (30mm) oil pump?
> =>
> =>This question was raised because the head that is currently on the '83
> =>California Edition is stamped hydro (I have yet to confirm, but I didn't
> =>think they were interchangable with solid heads), yet it should
> =>be solid. I
> =>have no idea if the pump that's currently in the block had been
> =>upgraded to
> =>properly feed the hydro head.
> =>
> =>Thanks, Jeff
> =>----- Original Message -----
> =>From: "Dave Ewing" <MK1Scirocco16v@comcast.net>
> =>To: <scirocco-l@scirocco.org>
> =>Sent: Wednesday, September 17, 2003 12:32 AM
> =>Subject: Re: Any drawback to having a hydro head on a JH?
> =>
> =>
> =>> You should be able to look into the oil cap and see if it has pucks or
> =>not.
> =>> Plus, unless someone has taken it out, the hydraulic heads have the
oil
> =>> deflector sitting above the cam.  But, if it does have a deflector
then
> =>you
> =>> won't be able to see if it has pucks or not and the deflector
> =>is sometimes
> =>> installed on the solid lifter heads as an upgrade.  So, either look
> =>through
> =>> the oil cap and see if you can see if the lifters have pucks in them
or
> =>pull
> =>> the valve cover.  If you do pull the valve cover, I'd get the
> =>2.0L gasket
> =>> and studs to replace the older style 3 piece rubber/cork gasket.  HTH!
> =>>
> =>> Dave
> =>> ----- Original Message -----
> =>> From: "Jeff Toomasson" <jtoomasson@yahoo.com>
> =>> To: <scirocco-l@scirocco.org>
> =>> Sent: Tuesday, September 16, 2003 11:28 AM
> =>> Subject: Any drawback to having a hydro head on a JH?
> =>>
> =>>
> =>> When I bought the Cali, I noticed that the head had the big H on it.
The
> =>PO
> =>> says that the cylinder head had never been replaced so it could
> =>very well
> =>be
> =>> the first owner's doing.
> =>>
> =>> I checked the block this morning and it is indeed a JH.
> =>>
> =>> What would this do? My first inclination is that, assuming only the
head
> =>was
> =>> replaced, if the engine's oil pump wasn't upgraded at the same time,
the
> =>> smaller solid-lifter pump probably wouldn't generate enough oil
pressure
> =>to
> =>> allow the hydraulic valve train to operate properly.
> =>>
> =>> Or - maybe the engine was completely replaced with something out of an
> =>> '85/6/7/8 8v and the only way to truly confirm if the oil pump is the
> =>right
> =>> one is to crack open the oil pan, right?
> =>>
> =>> Sheesh - Only in a Scirocco!   :)
> =>>
> =>> JT
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