Question about 1989 Toyota Corolla
Posted by Anonymous on
You take the water pump off and visually insect pump vanes
will need a gasket
or check water pump seal isnt leaking (dripping coolant )
other causes of over heating
engine cooling fan not spinning fast enough
thermostatic fan switch faulty
Posted on Oct 28, 2016
Pull #1 spark plug and rotate the engine until you hear air rush out of the cylinder, (plug the hole with your finger if you can), then look at the timing mark, it will be close to TDC
Posted on Oct 04, 2008
This engine utilizes shims to set proper clearances, you will need a micrometer, valve clearance adjustment tool set for shimmed lifters,small magnetic arm, appropriate shim selecting charts (manufacturer will have this if you can get the nec. measurements).
Measure thickness of shims removed (using micrometer) and use this formula where T=Thickness of old shim; A=Valve clearance measured; N=Thickness of new shim required.
Intake valves: N = T + (A - 0.02 mm (0.008 in.)) Exh. valves: N = T + (A - 0.25 mm (0.010 in.))
Then you need to find shims as close as possible to the calculated values.
Valve clearances (cold) are as follows: Intake 0.15 - 0.25 mm (0.006 - 0.010 in.) Exhaust 0.20 - 0.30 mm (0.008 - 0.012 in.)
Note, if you are not familiar with precision measuring using a micrometer, this may be better left to a trained tech. These are high revving little power plants and you don't want a problem at 8K rpm.
Posted on Aug 06, 2009
It is registering engine too lean due to either too much air entering the engine via an intake leak or by an inaccurate reading from the MAF.
Often on these cars, particularly if they have used Toyota brand air filters, the MAF collects fuzz over time from the air filter.
As this 'fuzz' collects on the MAF element, it acts as an insulator and skews the airflow reading for the ecm; it sees less air than is actually going through, so when it checks your mixture on the way out of the engine it realizes that there is more air than it thought was going in.
Pull your MAF out of the air hose (two philips screws) and clean it with non-chlorinated brake cleaner or "MAF cleaner" available at your local parts store. Look in there with a flashlight, you will see a little coiled wire covered in little bits of fuzz before you start.
Do NOT touch the element, just use the cleaner to blast it clean. Let it air dry completely before reinstalling.
Clear the code and call it a day!
Posted on Sep 15, 2009
why does my normal rpm always bug down when the engine start?and when I started to use the air con, the rpm was playing. It doesnt go on a certain point. it always range at 800rpm then it will down to 700. what am I might do to solve this probem?
Posted on Mar 13, 2010
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