My engine has been making a bit of a ticking noise at idle that's been getting louder over the past few months. It's not terrible, butt it's annoying me. It sounds like it's coming from the valvetrain. I looked in the haynes manual and it said that every now and then the valve clearance must be checked and adjusted. My car just rolled over 140,000 miles and I figured that sounds like a possibility. Has anyone done this before? Have a detailed writeup of how to do it? Would it be best to have a shop do it or would that cost $$$$?
It sounds like it is not all that hard from what the haynes manual says, just very time consuming, and I would have to buy a valve lifter.
Thank you
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I used to get smoked by metros and carollas so I put on the world's biggest NOS sticker and 4-deck spoiler. Now I can kill Ferarris
Most likely what you're heaing is chain slap due to worn (chain) guides or some kind of slop in the chain. To adjust the valves you need adjusting shims. Or you could be hearing injector click but that shouldn't get louder with age. I have over 150K and I suppose I can provoke it to make noise at idle but no worries yet.
Last edited by Centurion : Sep 11th, 2003 at 09:53 AM.
It sounds like the lower timing chain guide to me because you said the ticking gets progressively louder over time.
Check out my Aug03 Timing Chain Guide Replacement article. Hopefully it will give you some idea of what's involved with the job. It's not a complete write up but I'll try to finish it soon.
Wouldn't renting an impact wrench be the easiest and safest way to get the pulley bolt off? About how long did it take you to replace the guides. My car has been making this noise for 15-20,000 miles, how much longer can it go before it causes serious damage. I just never have time to do something like that on my car.
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I used to get smoked by metros and carollas so I put on the world's biggest NOS sticker and 4-deck spoiler. Now I can kill Ferarris
Alright, the thickness of the shim needed can only be found out by measuring the valve clearance and the old shim, then using this equation from the Haynes manual:
INTAKE SIDE: N=R+(M-0.0146inch or0.37mm)
EXHAUST SIDE: N=R+(M-0.0157inch or 0.40mm)
R=thickness of the old shim
M=valve clearance measured
N=thickness of the new shim
In other words, you need to buy a shim that will leave only .37mm of clearance on the intake side and only.4mm on the exhaust side. Hope that helps you.
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I used to get smoked by metros and carollas so I put on the world's biggest NOS sticker and 4-deck spoiler. Now I can kill Ferarris
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