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Valve oil stem seals - rope trick #499364
8th Apr 2011 11:48am
8th Apr 2011 11:48am
Joined: Jul 2008
Posts: 14,028
Birkenhead
diggingdeeper Offline OP

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Has anyone done the rope trick to change the valve stem oil seals?

I want to change the oil seals but don't want to take the cylinder head off at the moment - yes, I'm in denial, I don't want to know what lurks inside - that can wait until the weather is a bit more reliable.

Any recommends on the rope to use, proper white cord or blue/orange poly stuff???

Rope trick - piston to bottom - feed [2m of 6mm ????] rope into cylinder through spark plug hole - turn engine to compress rope which will hold the valves up. Then use a topside spring compressor to remove spring and change the seals.

Alternatively there is the compressed air method - which I don't fancy, if something goes wrong the valves will drop - I prefer the idea of something physical being in the way to support them.

I need to check first to see that the springs aren't too deep-seated to get a topside spring comressor in, but I think there is.

Last edited by diggingdeeper; 8th Apr 2011 11:48am.

We don't do charity in Germany, We pay taxes. Charity is a failure of governments' responsibilities - Henning Wehn
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Re: Valve oil stem seals - rope trick [Re: diggingdeeper] #499403
8th Apr 2011 1:17pm
8th Apr 2011 1:17pm
Joined: Feb 2009
Posts: 1,952
tranmere
chris_gilly Offline

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tranmere
take the head off for the best way, dont skimp, its easy on them!

Re: Valve oil stem seals - rope trick [Re: chris_gilly] #499409
8th Apr 2011 1:35pm
8th Apr 2011 1:35pm
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Skid Row
_Ste_ Offline

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Originally Posted by chris_gilly
take the head off for the best way, dont skimp, its easy on them!


withthat


[Linked Image][Linked Image]

I KNOW YE WATCHING YE RAT!
Re: Valve oil stem seals - rope trick [Re: diggingdeeper] #499417
8th Apr 2011 1:47pm
8th Apr 2011 1:47pm
Joined: Jan 2009
Posts: 3,080
Birkenhead
polo_phil Offline

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Sounds like some oily fun! Rather you than me DD. I'm too lazy to even change a wheel these days... frown

Re: Valve oil stem seals - rope trick [Re: chris_gilly] #499423
8th Apr 2011 1:52pm
8th Apr 2011 1:52pm
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Birkenhead
diggingdeeper Offline OP

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Originally Posted by chris_gilly
take the head off for the best way, dont skimp, its easy on them!
Haven't figured out if it has dry or wet liners yet - I think its dry. If its wet liners, I guarantee the liners will move so I want to avoid this.

I will take the head off in the near future, I just want to get the smoke down to the level where the MOT station can see what car it is first wink


We don't do charity in Germany, We pay taxes. Charity is a failure of governments' responsibilities - Henning Wehn
Re: Valve oil stem seals - rope trick [Re: polo_phil] #499425
8th Apr 2011 1:54pm
8th Apr 2011 1:54pm
Joined: Jul 2008
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Birkenhead
diggingdeeper Offline OP

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Originally Posted by polo_phil
Sounds like some oily fun! Rather you than me DD. I'm too lazy to even change a wheel these days... frown
I've got a couple of syringes to get rid of the big wells of oil the head holds, means I don't run out of bed linen raftl


We don't do charity in Germany, We pay taxes. Charity is a failure of governments' responsibilities - Henning Wehn
Re: Valve oil stem seals - rope trick [Re: diggingdeeper] #499427
8th Apr 2011 1:56pm
8th Apr 2011 1:56pm
Joined: Feb 2009
Posts: 1,952
tranmere
chris_gilly Offline

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what engine is it buddy?

Re: Valve oil stem seals - rope trick [Re: diggingdeeper] #499428
8th Apr 2011 1:56pm
8th Apr 2011 1:56pm
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Posts: 3,080
Birkenhead
polo_phil Offline

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Wouldn't it be easier to drive it into the dock?

what car is it? Not your Corsa?

Re: Valve oil stem seals - rope trick [Re: diggingdeeper] #499431
8th Apr 2011 1:59pm
8th Apr 2011 1:59pm
Joined: Feb 2009
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tranmere
chris_gilly Offline

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the 1.1 is dry linered

Re: Valve oil stem seals - rope trick [Re: diggingdeeper] #499439
8th Apr 2011 2:02pm
8th Apr 2011 2:02pm
Joined: Jul 2008
Posts: 14,028
Birkenhead
diggingdeeper Offline OP

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Nah, its the peugeot, been getting stuck into it recently ....

So far ....

New Thermostat
New Radiator Fan Switch
Replaced Indicator/headlamp stalk
New Cambelt
New Rear screen washer jet
New OS Headlamp assembly
Cleaned/set spark plugs
New Exhaust flexi-gasket
New rocker cover gasket
New Rocker cover/baffle-plate spacers
Set valve gaps

Got given the wrong exhaust gasket the first time, got the right one later but was being a stubborn little get, and the gear-change linkage and anti-roll bar and other supports are totally in the way making it more than awkward.

Some toerag kicked a couple of panels and did some major keying to one side - its not too bad, panels will straighten. At the same time they slashed a BMW's tyres so I got off lucky.


We don't do charity in Germany, We pay taxes. Charity is a failure of governments' responsibilities - Henning Wehn
Re: Valve oil stem seals - rope trick [Re: diggingdeeper] #499441
8th Apr 2011 2:04pm
8th Apr 2011 2:04pm
Joined: Jan 2009
Posts: 3,080
Birkenhead
polo_phil Offline

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Originally Posted by diggingdeeper
Some toerag kicked a couple of panels and did some major keying to one side - its not too bad, panels will straighten. At the same time they slashed a BMW's tyres so I got off lucky.


Bas tards...

sounds like you've been busy DD

Re: Valve oil stem seals - rope trick [Re: chris_gilly] #499445
8th Apr 2011 2:07pm
8th Apr 2011 2:07pm
Joined: Jul 2008
Posts: 14,028
Birkenhead
diggingdeeper Offline OP

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Originally Posted by chris_gilly
the 1.1 is dry linered
Not all of them - I have the TU1-H1a engine. I think the deciding factor is whether the cylinder block is alloy or cast, cast has dry-liners and alloy has wet.

Last edited by diggingdeeper; 8th Apr 2011 2:17pm. Reason: meant h1a

We don't do charity in Germany, We pay taxes. Charity is a failure of governments' responsibilities - Henning Wehn
Re: Valve oil stem seals - rope trick [Re: diggingdeeper] #499666
8th Apr 2011 7:33pm
8th Apr 2011 7:33pm
Joined: Nov 2003
Posts: 12,002
Wirralshire
StuyMac Offline
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Compressed air is safe as houses - cant rememeber the amount of times ive used that method to swap valve springs, retainers and stem seals smile


What If There Were No Hypothetical Questions?
Re: Valve oil stem seals - rope trick [Re: StuyMac] #499677
8th Apr 2011 7:42pm
8th Apr 2011 7:42pm
Joined: Oct 2010
Posts: 641
bromborough
johncon Offline

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bromborough
Originally Posted by StuyMac
Compressed air is safe as houses - cant rememeber the amount of times ive used that method to swap valve springs, retainers and stem seals smile

me too so long as compressor is on to top up any leaks
oldman


I am too old for this lark !!!
Re: Valve oil stem seals - rope trick [Re: StuyMac] #499682
8th Apr 2011 7:46pm
8th Apr 2011 7:46pm
Joined: Jul 2008
Posts: 14,028
Birkenhead
diggingdeeper Offline OP

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Originally Posted by StuyMac
Compressed air is safe as houses - cant rememeber the amount of times ive used that method to swap valve springs, retainers and stem seals smile
mmmm - I've even seen it done - but it would take a leap of faith for me to go for it, on a known good engine I might risk it, on a clapped out 20 year old unknown, I just can't bring myself to do it.

Problems I envisage ....

Compressor failure.
Eleccy failure.
Hoseline failure.
Oil that is sealing piston rings gradually getting pushed out and compressor not too happy about keeping up with air flow.
Stupid mistake by operator (I have plenty of practice with these)
Act of god (usually the case when working on cars - sometimes called sod's law)

The rope trick seems fairly idiot-proof (as long as I don't crank the engine when its holding a valve up) - unfortunately you can't do both rope and air.

Last edited by diggingdeeper; 8th Apr 2011 7:47pm.

We don't do charity in Germany, We pay taxes. Charity is a failure of governments' responsibilities - Henning Wehn
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