Push Rod Play/hydraulic issue

[PeeSG]

[img]http://tapatalk.imageshack.com/v2/15/02 ... 904b02.jpg[/img]

That's not even a hydraulic tappet is it??? What the blithering heck.

[silverbullet]

Bodged up. I would say that the Haynes " Book of Lies" 1.5 turns preload is excessive, 0.5 is quite sufficient. If the valves receed more than this the engine is rapidly dying anyway.

[itchyfeet]

https://club8090.co.uk/wiki/Pe ... d_in_place" onclick="window.open(this.href);return false;

https://club8090.co.uk/wiki/Hy ... _explained" onclick="window.open(this.href);return false;

the second link has a link to the ratwell guide very good

[kevtherev]

Yes you'll need a vice.
That lifter must have been making a terrible racket.
Lets hope the pushrod isn't bent.

Follow this guide to fitting lifters...or just have a read and understand them
http://www.ratwell.com/technical/HydraulicLifters.html" onclick="window.open(this.href);return false;

[PeeSG]

But this is a solid lifter. Do 1.9 wbx's 100% have hydraulic lifters?

[itchyfeet]

Hang on are you saying that tappet in the pic came out of your engine?

that doesn't look like a hydraulic tappet no or a solid one, some engine remanufacturers have been known to fit solid but I can't see how a solid tappet can fail and shorten so that the rocker adjustment is not enough.

http://tapatalk.imageshack.com/v2/15/02 ... 904b02.jpg" onclick="window.open(this.href);return false;

[PeeSG]

Yeah that came out of it. definitely. Not hydraulic.

[PeeSG]

[PeeSG]

View from other end

[itchyfeet]

View in the hollow end and length?
view of the hole it came out of and the cam in the bottom of the hole?
do you have a telescopic push rod tube on the engine already in another location?
if so pull that tappet also and see what's there

not got tgat rocker gear on the dirty gritty ground have you?

[PeeSG]

Good idea will do that later. I have one on the other side I can pull.

[kevtherev]

If that's a solid lifter then steel pushrod tubes should have been fitted
Push rods on hydraulics have alloy rods

it should have a hole up the middle to allow oil to the rockers.
I'm wondering if the rocker has pounded the valve stem down
Or this is just as suggested a complete bodge

[kevtherev]

Bodged up. I would say that the Haynes " Book of Lies" 1.5 turns preload is excessive, 0.5 is quite sufficient. If the valves receed more than this the engine is rapidly dying anyway.

I believe 2 turns is recommended from the factory.

Richard Atwells point of view...

If you only adjust them by 0.5 turns the lifter won't compress enough and you'll upset the rocker geometry accelerating valve train wear. In practice what happens when you don't preload the lifter enough is it will take too much time to pressurize and you won't get enough valve lift. If you use too little preload you will stress the lock ring that holds the lifter together when the lifter socket makes contact with it.

Two turns of the 10mm valve adjusting screw with 1mm threads will preload the lifter ~1.5mm. This is just under half the distance that the piston inside the lifter can travel. If you use too much preload, the plunger may bottom out at first, then as the lifter pumps up to compensate the valve may not close properly.

I set mine to 1.5 turns

http://www.ratwell.com/technical/HydraulicLifters.html" onclick="window.open(this.href);return false;

[itchyfeet]

If that's a solid lifter then steel pushrod tubes should have been fitted
Push rods on hydraulics have alloy rods

Are the steel pushrods longer kev?

Thing is if it was like that before the breakdown how did it run?

[PeeSG]

@itchyfeet @kevtherev heres what i am going to do next. - let me know your thoughts.

I am going to pull the rod from the other side of the engine which has a telescopic tube i replaced last year. I will pull the follower and compare that.

this is what it is supposed to look like right?



Not sure of the solid follower being too short or something but i compared it next to a type4 Aircooled follower and it was shorter. might be just a completely different setup though and not comparable.