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[Entwood]

Whatever else you check .. make sure BOTH the EML and the EMISSIONS warning lights come on when the ignition is first turned on, then go out .....

thats the car with a spanner, and the engine shape lights.. am i right??

Yup .. both should come on with ignition... then go out after about 3-5 seconds ..

[ChevetteNick]

would the valve seals not have failed within 155k

Yes they would have done

[Andy B]

would the valve seals not have failed within 155k

Yes they would have done

you say that because? ...... The last cylinder head I did was on my 150 000 mile Senator. I replaced the stem seals because ... you do.  They had seen better days ie they were hard, but not failed. There's no noticeable smoke on start up on my 160 000 mile Omega, & I can't see any previous owner having cahnged them for the sake of it. 

[tunnie]

would the valve seals not have failed within 155k

Yes they would have done

What makes you think that!? Bet you they have not 

[ChevetteNick]

you say that because?

You answered your question yourself below

they were hard

There's no noticeable smoke on start up on my 160 000 mile Omega

There wont be, but ask the fella behind you after you have done some hard acceleration if he could smell smoke and he will tell you yes.

[cem_devecioglu]

check all the toys :  sunroof, electric chairs, windows, air condition (both for heating and cooling), cd , rear blind, mirror controls etc..

check the engine at idle both cold and warm.. if regular and no shakes,no misfires ok..  listen to any unusual noises..  can you see any leak (oil or coolant)

check the oil and coolant state..

check down the car for any repairs, traces and leaks also..

and finally check the paint closely , part gaps, front geometry must be symmetrical and gaps equal..

and drive it ..(if not possible ask the owner to drive near you)

ps: also the tires and wheels ..

[Andy B]

you say that because?

You answered your question yourself below

they were hard

There's no noticeable smoke on start up on my 160 000 mile Omega

There wont be, but ask the fella behind you after you have done some hard acceleration if he could smell smoke and he will tell you yes.

Harder than new = could be better, not neccessarily failed 

[ChevetteNick]

What makes you think that!?

Experience

Bet you they have not 

Do you gamble often?

[ChevetteNick]

Harder than new = could be better, not neccessarily failed 

That's some flawed thinking that is mate
A new seal is soft because soft seals will seal oil better than one that is hard. Once they have started to perish they lose their effectiveness to seal oil. Once they have started to lose the effectiveness to seal oil they have failed.

[Andy B]

Harder than new = could be better, not neccessarily failed 

That's some flawed thinking that is mate
A new seal is soft because soft seals will seal oil better than one that is hard. Once they have started to perish they lose their effectiveness to seal oil. Once they have started to lose the effectiveness to seal oil they have failed.

Still don't fully agree with  you. 

[TheBoy]

would the valve seals not have failed within 155k

Yes they would have done

That I doubt to be honest....  :-/

[vxlgsi]

so if it does smoke blue on start up, should i walk away?

[Andy B]

so if it does smoke blue on start up, should i walk away?

Depends whether you want to live with it or change the valve stem seal. Seals don't cost much, but fitting them is a PITA if you have to remove heads to fit them. I don't know if it's possible to do them in situ on these cars .... never had the need to investigate. 

[webby23]

so if it does smoke blue on start up, should i walk away?

No mate, mine does it and uses about 1 litre per 1000 miles.....I can live with that.

 

[vxlgsi]

oh thats alright.. no way id bother changing them.. this car is to see me through the year thats all. can go to the scrapper after that ir req'd