EA82 engine knock/tick

Cliff R · Post by **Cliff R** » Mon Nov 12, 2012 10:19 am

Went to Repco this morning, gave the info to ID the car and ordered 4 lifters at $18.50 each.
No idea what I will end up with for that price.
Be here tomorrow.

steptoe · Post by **steptoe** » Mon Nov 12, 2012 4:33 pm

pinch me , must be dreaming, at that place, at that price ???

Cliff R · Post by **Cliff R** » Mon Nov 12, 2012 5:10 pm

Better let me see what I end up with tomorrow. Might be nothing like what I need.

steptoe · Post by **steptoe** » Tue Nov 13, 2012 7:08 am

be real funny if they were EA81 hydraulic lifters

YouTube · Post by **El_Freddo** » Tue Nov 13, 2012 12:34 pm

steptoe wrote:be real funny if they were EA81 hydraulic lifters

Even worse if it's for a dastun L series engine!!

Cheers

Bennie

Cliff R · Post by **Cliff R** » Tue Nov 13, 2012 4:01 pm

Picked them up this arvo, quick visual comparison is they look good.
Details are
Nason (brand) hydraulic lash adjuster/Tappet
Part No RHT6400
Wont get a chance to do anything today as going to kids swimming classes and then Cub's. Wont get home till about 8:30pm

steptoe · Post by **steptoe** » Tue Nov 13, 2012 9:29 pm

Nason is sort of a brander than manufacturer - could be ajusa inside. At that price might have to buy a set meself !!

Be aware that it may take a good slow drive around the blocks bfore the tick of new ones goes - bit of heat soak thing ???????????....
Likley worry you at first like it did me, coz they new should be good immediately

fingers Xed

Cliff R · Post by **Cliff R** » Tue Nov 13, 2012 9:37 pm

Ill make sure they are primed before going in.
Think I will run a set of mics or verniers over them before fitting them too.
Just in case something is not right.
How can someone/anyone produce the things for $18.50 each ?

YouTube · Post by **El_Freddo** » Tue Nov 13, 2012 9:46 pm

Cliff R wrote:How can someone/anyone produce the things for $18.50 each ?

Pull an old one apart and have a look, they're more complicated than I first thought they were, a few moving parts!

Cheers

Bennie

steptoe · Post by **steptoe** » Wed Nov 14, 2012 7:12 am

many components are made for peanuts and sold for macadamia. I once got the chance to see a price for a fuel pump suits old red motor Holden six as it passed from one retail outlet to another, both owned by same mother company @ ~ 15 bucks with a retail of ~ $75. Opened my eyes to realising the cost of buying the things in bulk, handling, storing, handling and selling and finally getting their money back. Maybe they are finally getting their money back !

Cliff R · Post by **Cliff R** » Sun Nov 18, 2012 9:21 am

The car is running. Rough but running and driveable.
As expected there is a bit of a tick but nothing like it was.
I could only prime 2 of the new lifters as they were a mongrel to do and they took the best part of 1.5 hours to do.
I tried standing them up in oil (thinner than normal - 10W-30) and pumping them up (like the manuals state) but ended up with sore fingers. Tried injecting them in all positions with oil in a syringe but only limited success. Tried forced injection with an oil can and still no real success.
Ended up putting them in only partially primed.
Will do as suggested and take the car for a drive when I have put a bit of heat into the engine and changed the engine oil and filter.
All up, a very nice learning experience.
P.S. not sure yet but with all this I am hoping to have solved the leaking front cam seal too by fixing the 2 cam box threads. See how this goes.

Post by **TOONGA** » Sun Nov 18, 2012 9:30 am

Years ago I was told by a mechanic that

"The best way to prime hydraulic lifters is to put them in light machine oil (singer oil etc) and then forget that you did it "

I have seen them sitting in oil for a week and still they made noise when put in the engine.

TOONGA

Cliff R · Post by **Cliff R** » Sun Nov 18, 2012 9:40 am

I think I will do as, I think, bennie suggested and pull one apart to see what is in them.
I am guessing the trick is to get all the air out of their internals and filled with oil rather than air.
Oh well, when time permits.
Changing the engine oil and filter now and will check the timing later this arvo.

YouTube · Post by **El_Freddo** » Sun Nov 18, 2012 9:46 am

You could try running a thinner oil for a 1000km to help prime them up. I've not heard of this being done and I don't know what other issues might arise from doing with with an older engine - lower oil pressure at temp?

The other trick I've thought about for priming is heating the lifters in an oven then placing them in oil too cool off in. There's no rubber parts in the lifter to damage so the heat shouldn't be a problem, plus I'd reckon they'd get pretty hot in the engine anyway.

I think with a few heat cycles they should prime up just fine over a week

Cheers

Bennie

Cliff R · Post by **Cliff R** » Sun Nov 18, 2012 10:59 am

Took the car for a drive, when the engine was started the lifters on the side I worked on (drivers) ticked fairly loudly for a couple of seconds then went pretty good.
Drove the car for about 5 ks around the block and the ticking came back as the engine heated up but nowhere near as bad as before I replaced the lifters.
Will take the car to work tomorrow (50 ks round trip) and see how things go.
If still no good I might chuck in a bottle of lifter quite as this seemed to work previously.
Still, the way things are now it is quite livable if not slightly anoying.

arty1 · Post by **arty1** » Tue Dec 11, 2012 8:28 am

Hi, l don't know if this is helpful but l went to a suby mechanic in Lismore with my 92 L series tick, tick, ticking & he reckons 90% of the time its the oil pump rotor shaft seal. page 299 of Gregories manual describes it in more detail as a common problem for OHC engine EA82. It says cases of noisy hydraulic tappets have been attributed to a worn oil pump rotor shaft oil seal. when this wears air is drawn thru the shaft into the rotors aerating the engine oil & reducing the amount of oil getting to the tappets. Each camshaft housing also has a secondary oil pressure relief valve which maintains a constant oil pressure to the tappets. Excess oil from the relief valve flows thru the oil relief pipe & sprays onto the rockers. if the tappet noise is limited to one side of the engine it is possible that the relief valve in that camshaft housing is stuck partially open.

steptoe · Post by **steptoe** » Tue Dec 11, 2012 1:27 pm

Those little relief valves and springs in the cambox are still available new, or were not so long ago, and affordable too.

Aeration is an issue discussed in a trade magazine mentioning EA82 can get a bit frothy in the oil dept if over filled, frothy oil then get through to the lifters.....