WRXshaneWRX

iTrader: (1)

anyone what price im looking to have these replaced on my 1995 wrx...also anyone knwo the cheapest place to buy uprated gaskets

millwrx

iTrader: (1)

well the stem seals should be no more than about a £10,the main cost is the labour unless your doing it yourself,engine out, heads off,you will need new headgaskets aswell,api is the best for these.

Jolly Green Monster

iTrader: (4)

I bought valve seals to replace the ones in my heads when I built the engine and they were something like £80 for the complete set.. I didn;t use them in the end and at that price returned them to the dealer.

Simon

RedScoob

It's a very labour intensive job. If you are just getting a puff of smoke on startup I'd be tempted to leave them until a major rebuild. I dunno if it'a applicable on Impreza engines, but usually the seals get damaged because the valve guides are shot, in which case the new ones would only last 5 minutes.

JJstiuk

My god, i thought id heard the last of stem seal problems when i stoped using vauxhall forums lol

Jolly Green Monster

iTrader: (4)

not normal for them to go tbh.. the previous engine with 186,800miles on it was still okay on the valve stem seals.. what makes you think it is the problem Shane?

Simon

APIDavid

iTrader: (4)

My thoughts exactly JGM.

David APi

funkyspider

if you dont want to take the heads off maybe you can use compressed air to keep the valves up while you change the stem seals. I did this years ago on a pinto engine out of my escort. Compressor with a spark plug screw in fitment, screw it in, make sure the compressor is running and bingo the valves are held up while you work. Worked a treat, I thought is was the dogs danglies thinking of that at the time lol

RAMP

That may work on a ford ohc,But obviously wouldnt on a subaru due to the fact that its a boxer engine and you cannot gain access to the valve colletts to remove the valves with the head bolted to the block.

WRXshaneWRX

iTrader: (1)

Simon, sorry for the slow reply..i forgot i made this thread, was just about to do another....anyway, bits of smoke on startup and on boost, when it went to scoobyclinic they said they might need changing

Aztec Performance Ltd

iTrader: (234)

not sure if they are MY specific?

I have a spare set available.


Bob

Slowboy Racing

Also the design and position of the heads means the steam seals are less susceptible to leakage compared to others.

WRXshaneWRX

iTrader: (1)

i heard they can be done with the engine still in place, there is no way its coming out again anyway lol
has anyone had them changed? if so did you change any other bits while there and what did you pay

[Davey]

Good luck doing that! Especially the lowers ones

Jolly Green Monster

iTrader: (4)

don't think it would be possible to hold the valves whilst you replaced the seal either???

Simon

Lateral Performance

iTrader: (20)

IMHO there is no way this can be done with the engine in.

Mark.

WRXshaneWRX

iTrader: (1)

oh poo poo...well if its gotta come out again suppsoe i better save more money and do some extra while its out, but think it will be a while before that happens!

APIDavid

iTrader: (4)

Yes it can, don't be such a party pooper.

1/ take off the front suspension
2/ drill holes in the inner flitch panel from under front wing. Titanium drill
recommended for drilling chassis legs
3/ make a long tool similar to Subaru genuine ABC123 revision L
4/ take off valve covers
5/ take off front covers and cam belt
5/ saw off cam pulley bolts [ always tight ]
6/ remove cams and buckets
7/ make a spark plug adaptor to take an air line connector, connect airline
and apply pressure to the cylinder to keep valves in place
8/ apply tool abc123 L to valve retainers, lift out cotters and release
ABC123L
9/ remove valve stem seal & fit new.
10/ replace cotters, buying new ones in bulk beforehand is adviseable due
to high loss ratio.
11/ reverse procedures above to get back together again
12/ repeat for every valve, drilling holes wherever necessary.
13/ to prevent water ingress to the engine bay it is adviseable to weld up all
drilled holes - this is optional as water injection can be a bonus in some
engines

Subaru book time for this procedure is 1.45 hours, so no real problem in my opinion.



David APi

PS. of course if you unable to carry out the procedure above it may be an idea to take the engine out

WRXshaneWRX

iTrader: (1)

David do i have to wear a cotton jumper and red plastic sandels while working on these hi tech procedure?

APIDavid

iTrader: (4)

I wouldn't recommend sharing your feminine side on an open forum mate, it can become a point if discussion amongst the various undesirables that inhabit these places.

Perhaps a burqua ??

Lateral Performance

iTrader: (20)

David,

I concede it's possible to do the job, but do you think 1.45 hours is realistic to do all this work ? And that's assuming the owner is happy to have multiple holes drilled, welded, and then re-painted

I think doing all this work for less than £100.00 inc' vat, is a bargain, and I'll have to book in for a cam belt service, and suspension swap, about £35.00 all in by my calculations


Mark.

APIDavid

iTrader: (4)

Ask me who the major tuning specialist is who believed every word I wrote - go on ask me!

Nope can't do it - my lips are sealed.

David

SSCJAY

This Must have been a dead givaway

Lateral Performance

iTrader: (20)

You've obviously not seen David working then, I have, and the only shock was the time he'd do the work in


Mark.

APIDavid

iTrader: (4)

Me ? working ? with my reputation ??

Anyway, I'm a blur when working, that's how I get so much done and stay slim.

David

Jolly Green Monster

iTrader: (4)

still think it is unlikely to be stem seals..

APIDavid

iTrader: (4)

Agreed

WRXshaneWRX

iTrader: (1)

DAM, What else could it be?!!!!!

SSCJAY

Are you running catch can? have you checked Crank/ oil breather pipes.

If is happenning on Boost could be blow by, which forces Oil vapours into the intake system.

And residue left in the pipes would cause it on start up.

WRXshaneWRX

iTrader: (1)

yer i got a catch tank