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Date:         Mon, 14 Apr 2008 13:04:50 -0700
Reply-To:     Jake de Villiers <crescentbeachguitar@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Jake de Villiers <crescentbeachguitar@GMAIL.COM>
Subject:      Re: 52 degree Inline 4 hydraulic lifters leaking down
Comments: To: Bill MacLachlan <billmacla@gmail.com>
In-Reply-To:  <333c10e0804141230p6419c195y2e0435073a0dabae@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1

Bill, if your 'mechanic' thinks that leaking lifters will cause low compression, he has a serious misunderstanding of engine internals and should be replaced!

Where did the donor engine come from? Was it seen to be running well and show good compression then?

On Mon, Apr 14, 2008 at 12:30 PM, Bill MacLachlan <billmacla@gmail.com> wrote:

> Thanks for the comments Scott....good thorough reply. > I understand that if compression is lost because a valve is open, > > - it's excess oil pressure that's opening the valve, not the angle of > the lifter. > - Check the oil pressure and the pressure relief valve > > Correct? > > Bill > > > > On 4/14/08, Scott Daniel - Shazam <scottdaniel@turbovans.com> wrote: > > > > He only time hydraulic lifters with an oil or hydraulic problem could > ever > > keep an engine from starting is if they get held 'too open' by excessive > > oil > > pressure. I've seen it and read about it in various makes of cars. > > > > I'm pretty sure that if they don't get any oil pressure, the valves will > > still be held open enough to make the engine start and run, but with > very > > noisy valves. > > > > Waterboxer and all inline 4 VW hyd. Lifters are not related in any way. > > Nothing to do with each other except the principle under which they > > operate. > > > > Hyd. Lifters do not start in VW diesel engines until 86, maybe a year > > earlier in Audi - or something close to this. > > 82 diesel vanagon most definitely never had hyd. Lifters. > > > > I wondered/was concerned about diesel hyd. lifters at 50 degrees when I > > did > > my first TD engine conversion, but it's not a problem, and I've have > run > > many many thousands of miles with vw diesel inline 4 hyd. Lifters at 50 > > degrees. > > > > For your situation here, it's not hard to check the compression, > > Or observe the valves being opened and closed with the vale cover off. > > > > And if you do think something is going on with the oil and/or air > getting > > into the hyd. Lifters from the oil pump ........you check the oil > > pressure, > > ( to make sure it's not excessive, like from stuck pressure relief valve > ) > > and for air in the oil from the oil pump ( which I've never heard of on > a > > VW > > ) .....if that's going on, then you think about the oil pump itself, but > > it's extremely unlikely in a VW diesel as far as I know. > > > > Scott > > www.turbovans.com > > > > -----Original Message----- > > From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf > Of > > Bill MacLachlan > > Sent: Monday, April 14, 2008 11:51 AM > > To: vanagon@GERRY.VANAGON.COM > > Subject: 52 degree Inline 4 hydraulic lifters leaking down > > > > Hi all... > > I have an 82 diesel converted to inline 4 with CIS injection about ten > > years ago- just before I bought the vehicle. > > I've just had a local VW shop install a replacement 1800cc inline motor > > in > > my van.... I believe they are a good well experienced shop. > > > > They are having an issue with the replacement motor. If the motor is > left > > for a few hours, apparantly there is no compression, it won't start and > > the > > mechanic is thinking this is the hydraulic lifters leaking. > > My old motor had hydraulic lifters ( well, at least that's what the > > sticker > > on the valve cover said and I have no reason to believe otherwise) and I > > never had an issue with it. > > > > > > Here are some questions: > > > > Has anyone else out there had experience with hydraulic lifters in I4 > > setups- when tilted at 52 degrees? > > Are the lifters in a waterboxer the same as the ones used in an inline4 > ? > > Did the 82 vanagon deisel motor use hydraulic lifters? If so were they > the > > same as the ones used in more upright deisel motors? > > > > Is there anything I should suggest to the mechanic that would help him > > get > > this thing fixed? > > > > btw current oil filter is a Mann - the black one - and I think they have > > 10-40 oil in the motor. > > > > Thanks all > > > > Bill M > > 82 I4 GL > > > > > > -- > > No virus found in this incoming message. > > Checked by AVG. > > Version: 7.5.519 / Virus Database: 269.22.13/1375 - Release Date: > > 4/12/2008 > > 11:32 AM > > > > > > >

-- Jake 1984 Vanagon GL 1986 Westy Weekender "Dixie" Crescent Beach, BC www.crescentbeachguitar.com http://subyjake.googlepages.com/mydixiedarlin%27


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