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



ETKA says the head, cam, cam follower and valves are different between the
hydro and solid head. Sprocket, springs, keepers, retainers and seats are
the same.
Of course, either will bolt on as a complete head, but you knew that!
Dan

----- Original Message -----
From: "Jeff Toomasson" <jtoomasson@yahoo.com>
To: "ATS - Patrick Bureau" <txrocco@sbcglobal.net>;
<scirocco-l@scirocco.org>
Sent: Wednesday, September 17, 2003 11:49 AM
Subject: Re: Missing the Point (was: Any drawback to having a hydro
headonaJH?)


> 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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