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Hey guys,

I've got some very dodgy lifters in my MPFI that i'd like to say goodbye to. I'm thinking of some solid lifters but don't know where to get any from or what they'd do to the engine. My thinking is that once they're set up right they wouldn't have to be touched again - not until i wear out a cam shaft

Any thoughts/opinions?

Thanks in advance.

Bennie

well then they start tap tap tapping they will need adjustment again,
less problem matic than the hydrolic lifters i believe,

hang on a minute is this even possible with OHC engines? eg woudnt the cam lobe actuate the valve? or am i a bit mixed up here

schultzie wrote:well then they start tap tap tapping they will need adjustment again,
less problem matic than the hydrolic lifters i believe,

hang on a minute is this even possible with OHC engines? eg woudnt the cam lobe actuate the valve? or am i a bit mixed up here

That's the idea of the cam, but instead of a "softer" hydrolic lifter pushing against the arm and the valve stem it would be a solid lifter... No more "diesel rattle"

Bennie

a solid lifter wotn work will it??? running straight off the cam
thered be no adjustment maybe im confused

I dont think EA motors use direct valve actuation, in fact most single cam heads don't.

I have a feeling that somebody did it, posiabbly on the usmb, cos they used quarters or dimes as shims to get the right height.

the rally boys did make adjustable solids for the L series RX

El_Freddo wrote:Hey guys,

I've got some very dodgy lifters in my MPFI that i'd like to say goodbye to. I'm thinking of some solid lifters but don't know where to get any from or what they'd do to the engine. My thinking is that once they're set up right they wouldn't have to be touched again - not until i wear out a cam shaft

Any thoughts/opinions?

Thanks in advance.

Bennie

Im pretty sure solid liters are noisier and will make the car run rougher than hydraulic, well atleast till it's warmed up, they also give better power at high revs being a more direct contact between cam and valve, that is if I remember auto class properly.

steptoe wrote:the rally boys did make adjustable solids for the L series RX

Don't know anyone with a set do you?

Bennie

Nah, I read it here in the old forum within last two years maybe. They made their own or adapted the existing ones with nut and threaded rod.
Go new hydraulics unless you seriously seeking more grunt at a sacrifce, remembering rally/race engines get a lot of work for not a lot of kms
I have seen these at the lowest $15 each as a trade price + gst ?

maybe contact fabre in lakemba nsw 02 9758 1966 ? they may be able to supply you at a good price

Ive also seen the EA82 solid lifter and basically they used to weld up the lifter and use a datsun? rocker. It was a while ago my mate who works at the repco machine shop showed me it. i had every intention of going back and measuring it up after work but i forgot

Suby Wan Kenobi wrote:Ive also seen the EA82 solid lifter and basically they used to weld up the lifter and use a datsun? rocker. It was a while ago my mate who works at the repco machine shop showed me it. i had every intention of going back and measuring it up after work but i forgot

That sounds interesting "weld up the lifter"... wonder how hard this is to do and what it could do the hydrolic lifter (apart from making it "solid"/welded)- i've got enough of them to try this out...

Another question - do the hydrolic lifters push out past their resting position when the engine is running? If not it should be pretty easy to do, but if they do it will be more complicated that picking up some lifters and welding them...

Cheers

Bennie

The lifters done actually move on an EA engine they are at the other end of the pivot of the valve. With an hydraulic cam in a solid lift function you will get a very high lift and it will also alter duration

Suby Wan Kenobi wrote:With an hydraulic cam in a solid lift function you will get a very high lift and it will also alter duration

Yeah, i'm hoping that if i do get these things in it won't effect the MPFI system to the point that it runs differently in a bad way...

But i'm willing to try it out and swap them back if i have to.

Bennie

what ended up happening with this?...

shh, think Bennie went EJ !!

Sorry to disappoint, but hydraulic cams are ground differently to solid cams.

Running a solid adjustable lash adjuster on a hydraulic camshaft will wear out the camshaft and be noisy, a noise you won't get rid of.

The opening ramp will take up all the clearance way too fast.

So, if you want solid lash adjusters, the cams need to be reground as a solid profile.

i know this may be a little off the solid lifter article but i have cured many ea82 lifter rattling by simply shimming the oil pump pressure relief spring.
what this does is give the motor a slightly higher oil pressure (especially at idle) which seems to stop the annoying ticking, I dont know if this solution is good or bad long term for the engine but i haven't had any reports back from customers of engines dying or missing
btw the shim i used is simply a washer 1mm thick.

spambo wrote:i know this may be a little off the solid lifter article but i have cured many ea82 lifter rattling by simply shimming the oil pump pressure relief spring.
what this does is give the motor a slightly higher oil pressure (especially at idle) which seems to stop the annoying ticking, I dont know if this solution is good or bad long term for the engine but i haven't had any reports back from customers of engines dying or missing
btw the shim i used is simply a washer 1mm thick.

A little off topic, sorry I'll disagree, but adding a shim to any engine only alters the maximum oil pressure, does not affect idle oil pressure.

Idle oil pressure is pump volume minus all the internal "leaks" (bearing clearances etc) within the engine.

Yes you are totally correct however you must consider that a hydraulic lifter slowly bleeds off oil therefore when the pressure is higher ( using revs) it will hold the pressure a little longer before it bleeds out and hence not tick
I guess if you let it idle for a long time it would evenyually start to tick but all the ones i did this mod to didn't