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1988 Toyota DLX 4x4
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10 Posts
Discussion Starter · #1 ·
Hi everyone, Im a newbie to the site, from Toledo Ohio. Ive been a long time Toyota (and Chrysler) owner, and wanted to see if any of you have experienced this problem. Ive got an 88 Toyota 4x4 pickup, which has ran strong with little trouble for 204,000 miles, but in the last year has developed a rattle in the engine when cold. Im a Chrysler mechanic by trade, and have never had a reason to tear my 22re apart. I have changed the oil every 5,000 and adjusted the valves, etc, since new. Especially in the winter, when I take off out of the driveway and go to shift gears at higher RPMs, I get a loud rapping sound. It goes away after she gets warm, and it runs perfect, as always. Its came to the point I let it warm up for 25 minutes everyday before leaving. By opening the hood when cold, and revving the engine, I can hear it in the top end. I replaced the valve cover gasket this summer, took a quick look at the timing chain, and it looked good. I am considering a new engine for her next year, but if someone here has had this problem and its not too much of a fix, I will do it and get a few more thousand miles out of it. Thanks for your help.
 

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One with the farce
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3,219 Posts
Valve lash??? check the screws on the ends of the rockers; sometimes they get mushroomed on the ends and need to be replaced.
 

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1985 4Runner SR5
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192 Posts
I'd pull that valve cover off and look at the timing set again if the rattle seems to be at a certain RPM range. The later model 22r(e)'s are bad about breaking timing chain guides. IF the guide breaks then what you are hearing is the chain slapping the inside of the timing cover. If you let it go it can machine its way into a water chamber in the timing cover (big trouble). I had that exact problem in my 85 4runner. It made a rattling sound around 1800-2300 rpm. It was worse when it was cold. I descoverd that the chain guide on the right side of the engine was totally gone. I also discovered all of the pieces of the guide in the oil pan. Luckily it had not totally gone through. Email me for pictures.

The problem is that toyota went to an all plastic guide when when they went to a single row chain in 84-85?. They are junk but you just have to live with it or cough up the money to upgrade to a double row timing set along with the new cover and oil pump necessary to do so. With those kind of miles you're probably due for a new timing set.

Hope this helps.
 

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84 4X4 toyota pickup
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342 Posts
you can actually get metal or some kind of more durable material to replace the plastic guides so you don't have to get a double set or different oil pump and cover unless you just want to.
 

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Pipe Welder
Toyota Truck
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127 Posts
your rokcer arm pads are prolly toasted. I just fixed my 22re's top end and the #3 and #4 exhaust r-arm pads were scored bad! They both had 3 flat spots where they rode on the camshaft, making a god awful ticking- rattling sound. i also had my cyl. head rebuilt too. now it runs whisper quiet!! check you rocker arm pads for uneven wear!
 
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