[Vwdiesel] hydraulic lifters

James Hansen jhsg at sasktel.net
Sun Feb 8 21:54:11 PST 2009

The cam followers cost around ten bucks each.
Just toss it. It is very uncommon to fail pumped up, but it can happen.
I had one fail similarly, sounded like the injector was done, and had no 
compression.  Intake follower collapsed, made tick tick noise, not too 
bad, but enough to not open the intake valve.

Rudy wrote:
> I've had White Smoke problems ever since startup on a new 91 1.6l Hydraulic
> Lifter Engine.  There were some Fuel issues that naturally showed up right
> after starting first time and it took me a while to run all those down,
> finally got that figured out, but Engine continued to Smoke White unburned
> Fuel Smoke way too much.
> Last week I pulled the Injectors and took them to be tested, they all tested
> good, next was planning on taking the Pump to Seattle Injector to get tested
> and figure out what's wrong.  In the mean time today I did a Compression
> Test, #1 450,  #2 500,  #3 0,  #4 450.
> The Engine was cold but showed plenty of Oil at Lifters during test.  The
> Exhaust Valve on #3 was pretty tight, seems there was tight contact with Cam
> Lobe up, couldn't turn Lifter with my fingers.
> I've had Hydraulic Lifters fail before and not hold pressure and leak down,
> but never had one fail full and not leak down, anyone else ever run in to
> this with a Hydraulic Lifter.  I'm hoping this Lifter has failed pumped up
> without leaking down rather than a bent Valve and stuck open.  Anyone ever
> experience this?  Rebuilt Head, new Valves, Guides, Seals ect., used the old
> Lifters.
> Anyone know of a way to test the Lifters on the bench?
> Rudy
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