subaru l series help

l series mad · Post by **l series mad** » Thu Sep 13, 2012 7:33 pm

well tapping noise has come back but only every now an then most of the time its pretty quiet so wha does tha say about it ? its a ea82 mpfi motor . oh an i have name my subi jude

l series mad · Post by **l series mad** » Fri Sep 14, 2012 1:01 am

oh an is it normal for a l series to sit on 3000 revs when doing 100km/h in 5th gear ?

YouTube · Post by **El_Freddo** » Fri Sep 14, 2012 6:55 pm

l series mad wrote:well tapping noise has come back but only every now an then most of the time its pretty quiet so wha does tha say about it ?

That it's a typical EA82...

l series mad wrote:oh an is it normal for a l series to sit on 3000 revs when doing 100km/h in 5th gear ?

Yeah, usually 3250 but it could just be the difference in the tacho. At 110km/h it should be about 3500rpm. And if it was an auto you'd be looking at 3500 for 100km/h and ~4100 for 110km/h. They don't call them slush boxes for nothing!

Cheers

Bennie

l series mad · Post by **l series mad** » Fri Sep 14, 2012 9:26 pm

it being typical ea 82 does tha mean tappets or oil pressure? an will putting on bigger rims do anything to the speed or rev say insted of 3000rpm 100km/h it will be 2800rpm 100km/h im going from standerd 13inch rim to 14inch ?

YouTube · Post by **El_Freddo** » Fri Sep 14, 2012 9:44 pm

l series mad wrote:it being typical ea 82 does tha mean tappets or oil pressure?

It could be both. If the oil seals on the pump are sucking air that'll cause a tappet issue. Or the tappets could be worn - but they tap away naturally anyway and have a mind of their own.

l series mad wrote:an will putting on bigger rims do anything to the speed or rev say insted of 3000rpm 100km/h it will be 2800rpm 100km/h im going from standerd 13inch rim to 14inch ?

Rim size won't do anything - it's the tyre size that will change the diametre and therefore your rolling distance per revolution. A 14 inch rim allows you to use a larger diametre tyre which will drop your revs. These things were designed to rev at that speed, it's how they came from the factory!

If you do go with the larger tyres you might find your economy drops out and you use more fuel due to trying to spin the tyres while the engine outside it's power/economy zone.

I don't know how anyone with an EA cruises around on 27's - they must be real gutless wonders.

Cheers

Bennie

l series mad · Post by **l series mad** » Sat Sep 15, 2012 12:53 am

so wha would be your best bet that its ether just tappets need fixing or oil pressure ? it does leak a little from the front mainly front driver side of motor o k so bigger the tyre the more it will chu petrol hmm

steptoe · Post by **steptoe** » Sat Sep 15, 2012 7:31 am

the bigger the tyre the further it will go per engine rev so in theory could use less fuel, but if you need to squeeze loud pedal more to go than you would with a smaller than bigger tyre you start to reduce efficiency. A manifold vacuum gauge, better known in Commodore speak as an economy gauge could help. Steeping down a gear getting revs up a little to get the needle in a more efficient zone may also help, may not either.

l series mad · Post by **l series mad** » Mon Sep 17, 2012 12:54 pm

so what would be yous best bet should i replace the tappets to get rid of the noise or try getting the oil pressure up to get rid of the noise ? leeks oil on driver side front half of engine but only two drops after turn car after driving it

YouTube · Post by **El_Freddo** » Mon Sep 17, 2012 8:27 pm

l series mad wrote:so what would be yous best bet should i replace the tappets to get rid of the noise or try getting the oil pressure up to get rid of the noise ? leeks oil on driver side front half of engine but only two drops after turn car after driving it

Your best bet is to go through all the motions:

- new seals on the oil pump including the shaft seal - sometimes a new shaft is required if a groove is worn in the original

- up the oil pressure with the 3mm spacer behind the pressure relief valve spring

- remove the cam boxes (painful to clean up and seal again) - replace O ring and clean out the oil galleries including the spring and ball in there (I remember there being one, but I'm not 100% these days)

- while you've got the cam boxes off it's a good time to prime up the hydraulic lifters after doing the same with some liquid that would clean out any varnish etc that could have built up in the lifters.

I believe the lifters go noisy for a couple of reasons:

Lack of oil pressure getting to them over a period of time; the internal spring in the lifter going soft, the lifter's head/piston wearing against the outer casing so tolerances are not as tight and oil passes rather than pressurising the lifter.

But that's just my theories...

Cheers

Bennie

l series mad · Post by **l series mad** » Sun Sep 30, 2012 12:04 am

well i will be paying someone to do it cause im not tha mech minded i can change a tyre spark plugs spark plug leads fuel filter air filter oil filter an change oil but thats all i know

i wont atemp anything else to paranoid to do it lol

l series mad · Post by **l series mad** » Thu Oct 04, 2012 2:53 am

hay i have an idea right now im using 20w-50 oil an i think if i use 15w-50 or 10w-50 that it will quiet up the tappets do u think it will work or will it cause more problems ?

phillatdarwin · Post by **phillatdarwin** » Thu Oct 04, 2012 12:42 pm

l series mad wrote:hay i have an idea right now im using 20w-50 oil an i think if i use 15w-50 or 10w-50 that it will quiet up the tappets do u think it will work or will it cause more problems ?

i fixed my by running CAT Diesel oil and your Tappets will stop ..
How meny km u got on your engine ??

l series mad · Post by **l series mad** » Thu Oct 04, 2012 1:16 pm

ea82 mpfi motor with 251000k's on it

l series mad · Post by **l series mad** » Sun Oct 07, 2012 12:11 am

so will 15w-50 or 10w-50 quiet up the tappets ? right now im using 20w-50 engine oil

steptoe · Post by **steptoe** » Sun Oct 07, 2012 8:59 am

you can only try 15W50 - or try the CAT oil Phil recommends.
I run 15W40 in one EA82, that if left to itself over winter , gets down to about 2C in the shed, will tap like nothin' else until it gets heat soak through engine and oil, goes quiet again. Will try a 10W next winter to see if any different or maybe CAT oil - but titally different temps to Darwin

l series mad · Post by **l series mad** » Sun Oct 07, 2012 2:26 pm

how many cams does a ea82 l series have ?

Post by **TOONGA** » Sun Oct 07, 2012 3:15 pm

one on each head

TOONGA

l series mad · Post by **l series mad** » Sun Oct 07, 2012 7:12 pm

so its a twin cam lol cool

l series mad · Post by **l series mad** » Mon Oct 08, 2012 12:29 am

so i can try 15w-50 petrol engine oil an if it dont work then try diesel oil 20w-50 right ?

steptoe · Post by **steptoe** » Mon Oct 08, 2012 8:14 am

the grade may have to be thinner than 15W50 like 10W40, but emphasis on diesel engine oil is for its extra/better/more generous detergent package in the oils makeup and may need time and distance to do its stuff to clan sludge out if sludge is its problem - remember oil is not the only reason they make a racket - go the Diesel engine oil first, go CAT go ?