Adjusting valve clearance

[djchow85]

Hi all

So I just had a flick through and looking at what needs to be serviced at 80,000kms on my 7AFE 98 rolla.

Even though it mentions to do a valve clearance at 80,000 and from the previous 10,0000km how often are these really done. Are they necessary? I had a search and I'm guessing that not doing this procedure that idle revs can drop over time? (I guess then it could be looked at?).

Then I've read that some have not had to take the cover off even having done 200,000km+.

How long would this take to do, and if so how much would it cost to have it done if it were need to be done?

[djchow85]

just read again and saw its only *additional...

[SuperDave]

You would only need to do it if the valve train was making noise.