[T3] Lifters that wont rotate

Wed Aug 29 19:21:47 PDT 2012

Well, that pretty much taps my knowledge. Perhaps just two bad lifters or
an improperly ground cam.

If the valve adjustment is too tight running super strong springs, it might
bind the lifter by bending the pushrod.

It is odd the exhaust valves are the ones not rotating, I usually see
damage and advanced wear to the intake lifters.

What are the brains on the tunacan.net forum saying about it? Now I'm all
curious.

On Wed, Aug 29, 2012 at 7:58 PM, Keith Park <topnotch at nycap.rr.com> wrote:

> This is a webcam 9550 with new lifters, both bought with one of the kits he
> sold.  He says that its defiantly not a hydraulic cam as they haven't used
> any since way before I bought the kit.
>
> The Rockers are a 1.7L set on 2L Porsche heads, again, this is a setup they
> sold regularly.  I did all the geometry myself so I know that's set up
> properly.  Just really weird that the exaust lifters aren't rotating...
> weird!
>
> Thanks for your thoughts,
>
> Keith
>
>
> Top Notch Restorations
> topnotch at nycap.rr.com
> http://www.a383ina68.addr.com/radiorest/main.htm
> 71 Squareback "Hothe"
> 65 Notchback "El Baja Rojo"
> 65 Squareback "Eggcrate"
> 87 golf "Winterat"
> 93 RX7 "Redstur"
>
>
> -----Original Message-----
> From: type3-vwtype3.org-bounces at lists.vwtype3.org
> [mailto:type3-vwtype3.org-bounces at lists.vwtype3.org] On Behalf Of Jonathan
> Stiles
> Sent: Wednesday, August 29, 2012 9:41 PM
> To: type3 at vwtype3.org
> Subject: Re: [T3] Lifters that wont rotate
>
> Keith,
>
> Hmmmm, Porsche 914 2.0L GA case. There was definitely not a hydraulic cam
> in there from Porsche.
>
> I had to dig into the long--term storage side of my brain on this one. I
> have seen this in two other instances which were not related to a hardened
> or hydraulic cam.
>
> The first was severely out of alignment pushrods caused by aftermarket
> solid-style rockers that were installed completely wrong. But there was
> other damage after that fiasco.
>
> The other was a situation was a customer was running some used lifters on a
> new Web Cam camshaft. The fix was getting a set of matched lifters from Web
> Cam.
>
> Web Cam does require a matched set of lifters for certain performance
> grinds on their solid lifter and hydraulic cams. If you are using a
> different manufacturer, perhaps they require a specific alloyed lifter as
> well.
>
> I would contact your engine builder and get the exact specs and
> manufacturer of your cam. Then contact the manufacturer directly to
> troubleshoot. If the builder doesn't know, then just assume they used a
> hardened or hydraulic cam.
>
> The one nice thing about running hydraulic lifters is you can use them on
> pretty much any cam without issue, you just can't run solids on a hydraulic
> cam.
>
> In my experience, reusing Type 4 solid lifters and reusing hydraulic Type 4
> lifters are not encouraged. My local machine shop who does my customer's
> motors won't warranty a motor if there are used lifters or a used cam. They
> always replace them with new like-branded lifters. BUT, Rabe might know
> something I don't know. From what I understand, in the past, sub-par cams
> needed original VW lifters to keep them from running out early. Essentially
> sacrifice the lifter to save the cam. Perhaps that is what Jake is
> referring to, but I don't like speaking for him. :)
>
> Jon Stiles
>
> On Wed, Aug 29, 2012 at 6:23 PM, Keith Park <topnotch at nycap.rr.com> wrote:
>
> > Finally, someone who's at least seen this!  Its supposed to be a solid
> > lifter cam, the GA case never got Hydraulics but to be honest how do I
> tell
> > if they gave me a hydraulic by mistake?
> >
> > The lifters have 5000 miles on them, 4000 in the first case and 1000 in
> the
> > second.  They aren't chewed up, but 3 of the 4 exhaust lifters have a
> > directional pattern on them and one has a small dip worn in the middle,
> its
> > still smooth but you can feel it.
> >
> > Thanks
> >
> > Keith
> >
> >
> > Top Notch Restorations
> > topnotch at nycap.rr.com
> > http://www.a383ina68.addr.com/radiorest/main.htm
> > 71 Squareback "Hothe"
> > 65 Notchback "El Baja Rojo"
> > 65 Squareback "Eggcrate"
> > 87 golf "Winterat"
> > 93 RX7 "Redstur"
> >
> > -----Original Message-----
> > From: type3-vwtype3.org-bounces at lists.vwtype3.org
> > [mailto:type3-vwtype3.org-bounces at lists.vwtype3.org] On Behalf Of
> Jonathan
> > Stiles
> > Sent: Wednesday, August 29, 2012 1:35 AM
> > To: type3 at vwtype3.org
> > Subject: Re: [T3] Lifters that wont rotate
> >
> > Keith,
> >
> > I have seen this happen many times with type 4 motors. It happens when
> > folks try to run solid lifters on hydraulic cams. The harder metal on a
> > hydraulic cam will eat a solid lifter in short order and stop its
> rotation.
> > The cam always looks fine and is usually undamaged.
> >
> > So IF this is the case, you will need to switch back to hydraulic lifters
> > and use steel hydraulic pushrods. Aluminum pushrods are for stock solid
> > lifter motors only...or split the case and change out the cam.
> >
> > Jon Stiles
> >
> > On Monday, August 27, 2012, Keith Park wrote:
> >
> > > Anyone ever run into lifters that don't rotate?  In my T4 3 of the 4
> > > Exhaust
> > > lifters aren't rotating, which is really odd. the bores aren't worn,
> the
> > > lifters have been in 2 different cases now and don't rotate in eather.
> > they
> > > slip in nice and smooth but the wear patterns on them are quite
> > > directional.
> > > Im worried, but what could possibly cause this?? They have about 5Kmi
> on
> > > them now between the 2 cases.
> > >
> > > Wondering if it had ever popped up as a problem in T3 cases?
> > >
> > > Keith
> > >
> > >
> > > Top Notch Restorations
> > > topnotch at nycap.rr.com <javascript:;>
> > > http://www.a383ina68.addr.com/radiorest/main.htm
> > > 71 Squareback "Hothe"
> > > 65 Notchback "El Baja Rojo"
> > > 65 Squareback "Eggcrate"
> > > 87 golf "Winterat"
> > > 93 RX7 "Redstur"
> > >
> > >
> > >
> > > _______________________________________________
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