Engine clattering?
Hi, I just bought an 89 camry with the 4cylinder engine. Car has 135k miles. Engine runs really good, but at higher rpms there is a little engine clatter. Do these cars have oiling problems? Think the rockers need adjusted? I always thought when the rockers needed adjusting, you could here it clattering/ticking at an idle. Its quite except for hanging at higher RPMs. Any ideas? Thanks
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Time for a diag from a local tech who can hear the engine.
At your mileage, it's unlikely that you need to re-shim the lifters to achieve the proper clearance.
My engine has over 234,000 miles, has no valve noise, and has had no major work since I bought it over 100k miles ago. That's a good benchmark for these engines. And, that's taking my head gasket oil leak into account that will have me replace the engine with a JDM block soon.
At your mileage, it's unlikely that you need to re-shim the lifters to achieve the proper clearance.
My engine has over 234,000 miles, has no valve noise, and has had no major work since I bought it over 100k miles ago. That's a good benchmark for these engines. And, that's taking my head gasket oil leak into account that will have me replace the engine with a JDM block soon.
Some OHC designs use a shoe that rides the cam lobe, is hinged to the head at one end and controlled by a hydraulic follower at the other end. That's the "lifter."
There are a lot of different designs that use creative methods to keep valve adjustment off the regular maintenance menu.
The last mechanical vale adjustment I performed was on the old 22RE Toyota motor. Most often, the problem was worn parts that made it impossible to make the valve train quiet down, no matter how we adjusted the valves.
There are a lot of different designs that use creative methods to keep valve adjustment off the regular maintenance menu.
The last mechanical vale adjustment I performed was on the old 22RE Toyota motor. Most often, the problem was worn parts that made it impossible to make the valve train quiet down, no matter how we adjusted the valves.
You can check it, using the traditional feeler gauge method, but I doubt that you will need an adjustment. If you do, you can check the shim chart and go to the dealer for the shim. There is a special service tool for pressing dopwn on the lifter to remove the shim, but I worked for toyota, and I never had to do that procedure.tawd77 said:
I'd still get a local guy to give a listen.
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