hi all i have a 94 ra and was wondering if there is anyhing i can do to make my tappets quite?? i change the oil every 4000miles with shell 10w 60 racing oil and always putoil in the filter before i put it on. so just wondering what i could do to make the quite???????
cheers rich

 

I'm gonna be blunt.

There aren't any tappets so I suggest you take it to a garage.

 

sounds like the gaps on the solid lifters need adjusting if its from the top end if not then its bottem end and not good news fella as above get to a garage and listened to.

 

To be equally blunt, there are tappets, 16 of them. There are no rocker arms but tappets exist in OHC engines. See here http://en.wikipedia.org/wiki/Tappet

To the O/P, I believe Subaru (like most other modern engines) use hydraulic tappets or cam followers. These use engine oil pressure to take up the valve clearance. Hopefully someone will point you in the right direction for your problem as my car has just developed a noise fron the LH valve area.

John

 

Do all Imprezas use solid lifters?
Mine is a MY2000 btw.

John

 

Ah the old Wikiwrongpedia. 'Cam followers' is the term I was always taught.

 

this particular model has solid lifters with shims not hydraulic lifters mate.

 

you sure its not your injectors making the noise

 

no only some use them most have hydraulic type cam followers mate

 

Good call.....

 

theyd be about fooked if there that loud he thinks its the tappets lol

 

i suppose lol. my injectors are pretty loud

 

myn are quite loud to mate but not metalic noise loud lol.

 

if he got good quality video he could post it up. i get paranoid at time with top end noise but those damn injectors. the joys!

 

Deep breath,

Version 1~2 WRX has Hydraulic Lifters.
Version 2 STi has Lightweight Hydraulic Lifters.
Version 2 RA has 'top hat' under bucket shims.
Version 3~6 WRX has outer shim buckets.
Version 3~6 STi has under bucket shims.
Version 7 WRX/STi onwards have Selective buckets.

The hydraulic lifters do get clogged up with tarnish/debris over time, so the only cure if they are noisy is to remove them,strip and clean or replace if worn.
Pic of a stripped down lifter below,




Unusual for the inner shim type to be noisy,as the clearances tend to get smaller due to valve seat recession especially on the exhaust side.
As suggested above,could be noisy injectors or loose spark plugs,slight exhaust gas leak etc etc.

Mick

 

Mick is the man,and should wear his pants on the outsidehe is a super man of knowledge

 

what about a 1997 uk turbo

 

It's effectively the WRX sepc engine, so going by Mick's fab post (he never fails to amaze ), then it would appear it has outer shim buckets(?). Is that right Mick, or am I talking the proverbials?

 

I know that my injectors make a noise, is that normal?

 

I repeating ticking noise? If so, yeah it's a sound that does indeed sound like noisy tappets when the bonnet's up (or closed for that matter).

 

tbh the ej2o motor is quite noisey in general,just listen to that ken block subaru post on here and you'll hear that from cold start making a noise and even some piston slap[forged],and the injectors are quite loud yes on them all some more than others.

 

Yeah, the EJ motor is one rowdy bugger lol

 

I have done a few of them EJ20 thingys now

 

LOL one or two ah Mick

 

Yeah Joz - it is outer shim
2nd one in from the right.

 

There you Sabas - your enquiry sorted by the Mickster (again!)

 

Can be a tad noisy at times






Sorry to the OP for going off post a bit .


Mick

 

ouch,freedom at last

 

lol that reminds me when the big end failed - catastrophically! - on my 205 GTI 1.9... The conrod ended up on top of the alternator!!! I couldn't quite believe it!