Hydraulic Lifters Xu10J4Rs Engine

[bas1974 0]

Hi,

 

Is it necessary to drain the hydraulic lifters from oil, before assembly on a XU10J4RS engine?

 

Or can I put the head back together without removing the oil inside these lifters.

[CosKev 16]

Should be emptied.

 

You can also strip them down and clean them out properly if you want,just watch the little spring and ball bearing when they fly apart!!!

[Paul_13 212 1 Cars]

I didn't strip mine when I rebuilt it and have had no adverse effects

[cheesegrater 43 1 Cars]

Neither did I and no problems here.

[bas1974 0]

According to the manual the lifters should be emptied of oil before assembly, otherwise the lifter can be stuck in the maximum postion.

 

resulting in ????

[welshpug 1,657]

bent valves.

[CosKev 16]

As above,also your putting more strain on the threads in the head when tightening down the cams/carriers.

[bas1974 0]

Or a leaking valve, when the valve should be closed?

[Miles 331 1 Cars]

Never had any issues here, And I;ve done allot of engine's

[EdCherry 34 1 Cars]

You could also end up with a lifter that doesn't fill with oil. Last engine I built I left the oil in to save the hassle.

[bas1974 0]

How do you take the lifter apart, tapping with the lifter on a wooden block according the manual doesn't seem to move the piston in the lifter.

[welshpug 1,657]

TAP HARDER!

 

you don't need to empty them totally, but compressing them down is a good idea.

[bas1974 0]

Can't tap any harder, what about blowing air in the small hole so the piston will be forced out?

[CosKev 16]

Put them in a vice and pull the centre out with pliers I found the easiest

[kyepan 291]

resulting in - valves being held open - like my engine.

[welshpug 1,657]

I drilled a hole in a piece of 6" long 2"x2", placed the tapped in it and slapped it against a lump of 4x4" fence post I had, easy

 

I really would not go at them with pliers.

[petert 586]

My favourite is melamine. The hard white surface seems to shock/bounce them out better. Softer timbers just absorb the shock.

[welshpug 1,657]

yes quite right pete, there were quite a few deep indentations in this fence post offcut

[CosKev 16]

 

I really would not go at them with pliers.

 

Why?

 

Try it,they pull out easily!

[welshpug 1,657]

you could damage them.

[CosKev 16]

you could damage them.

 

you could if you were totally useless yeah

[bas1974 0]

I succeeded in getting the pistons out of the lifters, what was needed was a hard piece of wood (workbench) and then tapping very hard with the bucket on the bench.

Thanks for the advice.