Question about 1991 Toyota Pickup

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I have a 91 22re 4wd 5spd when it first starts it makes a loud clacking noise that goes away after a few seconds what is that noise my rocker arm shafts and rocker arms are in good condidion

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Sounds like it could be your timing chain. There is an automatic chain tensioner and over time when the chain gets a lot of miles on it the plastic guides and chain have to be replaced. Typically around 125,000 miles or more. You can remove the valve cover and look down the front of the engine to verify this. Look to see if the plastic guides are still in place and that the chain is not rubbing a hole in the front timing chain cover. Let us know your findings.

Posted on Nov 26, 2014

  • JeB
    JeB Mar 15, 2015

    I'll second this opinion. You don't want it to wear through the timing chain cover. How long you can get away with ignoring this is up to debate.



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normal settings that i apply to everything except some old 1960s gt versions is 12th inlet and 15 exhaust these setings are more or less appropiate for all adjustable tappet settings unless as stated an old gt ford then its something like 22th ,and clacking like hell ,well iam looking in my autodata book and nothing shows that old or even the same size engine but most are showing .15-,25 inlet and ,25-,35 exhaust mm for the toyotas ,scanning and posting takes a long time as i have to reduce the picture to under 150kb which loses a lot of detail ,now as this vehicle was produced to run on 4 star petrol and now only 95 octane is available unless you pay for 98 ,now this will run on 95 unleaded as it should have stelite coated valves and seats provided that you adjust the timing to 6? trying to use original settings like 10 or 12? will make it pink like hell ,ok you lose a bit of power but ?? not really noticeable on a cooking engine like this .

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SOURCE: 88 Toyota 22r possible loud valve tap only under

Are you using a good quality conventional oil? Older cars don't do well with cheap oil or synthetic. I recommend Valvoline conventional, my truck has over 200000 on it and runs great.

Posted on Nov 04, 2013

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I have a 91 22re 4wd 5spd when it first starts it makes a loud clacking noise that goes away after a few seconds what is that noise my rocker arm shafts and rocker arms are in good condidion

The 22re engine was infamous for having timing chain problems where the timing chain guide and tensioner would rub on the back of the waterpump. Check your timing chain to make sure all components are operating correctly and check the back side of the water pump. If it succeeds in tearing up that water pump cover you will coolant rush into engine and water lock the motor. More damage than checking and or replacing the timing chain and components.

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