replacing valve stem seals

[nikkoli]

hey has anyone replaced the valve stem seals on a EA-ED without removing the head?..am relpacing them on a mates ED..hand book only mentions it when removing the head,but dont want to got to that trouble if we dont have to

[NC_Steve]

It can be done without removing the head. You will need an overhead valve spring compressor to get the valvesprings out and a special slide hammer tool to get the old valve stem seals off the head, but other then that its pretty easy and about a days work. Just make sure you don't let the valve fall into the cylinder when you take the valvesprings out.

[SupahStah]

Unfortunantly (for you, and for me) you must remove the head, to my knowledge. So as my mate explained it, if you wanna get some cam work or any other work to the engine, get a professional to do the work, and ask em to do the valve stem seals too... Cheapest professional way around it.

If your adement on doing it yourself, ya gotta remove the head. Alot of stuff'n aroun. Your book shuld help ya thru it... Pitty i didnt have a book when i done it on my old ZK... took for ever lol

[SupahStah]

I stand corrected :

[NZ]

what about the rope in cylinder trick?

[Psycho Chicken]

That's for stopping valves from falling in or lifting a stubborn head off.

[Polyal]

Can I ask why you would be replacing them?

Because I currently have an issue with my car that when I start it up in the morning blue smoke ****es out the exhaust. Its only for about 2 minutes max at start up then its right all day.

So somehow, when the car sits for to long oil is getting in, but it must leak very slowly. Anyone got any ideas? Its definatley not affecting performance or economy.

[nikkoli]

yeah... my mates ED has pretty much the same problem...on starting it blows thick blue smoke which gradually dissapears..the consensus is that its the valve stem seals,because if it was the piston rings it would smoke continuously....dont think its a head gasket,as it was replaced 1 year ago,and its not going through coolant.He replaced the head last year with a 2nd hand one from a wreckers.....the head was machined but the seals would have been the old ones.

[nikkoli]

NC Steve....have you done this before?...do you know where i can get detailed instructions?
Thanks

[NC_Steve]

Originally Posted by nikkoli

NC Steve....have you done this before?...do you know where i can get detailed instructions?
Thanks

Just use a gregorys service manual and some initiative and you should be fine. Thats how I did mine and you can always post on here if you get stuck with something.

[nikkoli]

sorry for 3 posts in a row....whats the rope in the cylinder trick?

[NC_Steve]

Originally Posted by nikkoli

sorry for 3 posts in a row....whats the rope in the cylinder trick?

You shove a length of rope through the sparkplug hole to stop the valves from falling into the cylinder once you take the collets and springs out. Another method is filling the cylinder with compressed air by using a fitting that is screwed into the sparkplug hole. I use the compressed air method and take the springs off and put them on one at a time and turn whatever cylinder I am working on to TDC so if a valve falls it can only fall a few cm.

[Psycho Chicken]

Best way to check for stem seal problems is decelerating down hill. The high manifold vaccum draws the oil down the valve into the cylinder and it blows smoke.

[ned]

What are valve stem seals worth? Damn similar problems!

[Polyal]

Yeah ive got the same question as ned.

Also Imguessing that while its not ideal to run around with this issue, if I was going to get a cam soon should I just wait until then and get everything done?

[NC_Steve]

Originally Posted by Polyal

Yeah ive got the same question as ned.

Also Imguessing that while its not ideal to run around with this issue, if I was going to get a cam soon should I just wait until then and get everything done?

Cam doesn't need to come out to do valve stem seals, but rocker assembly does so it would be worth doing both in the one hit.

[tanjo50]

Yep ive done the stem seals in a eb with 4 litre.
wat you do is remove all spark plugs and remove fan and fanshroud.
starting with number 6 cylinder place the piston to top dead centre.
remove valve spring and let the valve rest on the piston.
remove old stem seal and put new stem seal in it.

[ned]

I'm guessing yes, but unlike me I have the cam in already :(

[aussiblue]

For seal or valve springs, unless I already have the head off I use compressed air with the fitting designed for the purpose that screws into the spark plug hole; a bit like this but with the tool designed for the job e.g.: https://www.ebay.com.au/itm/16481084...Bk9SR-zV6b3fYw or https://www.ebay.com.au/itm/27532871...Bk9SR6zx3L7fYw and https://www.amazon.com.au/Hromee-Cyl...%2C274&sr=8-11 etc