Question about 1991 Acura Legend

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Even after replacing the radiator, thermostat and

First it started with the crank/cam sensor coming apart behind the drivers side cam gear causing the engine not to run. when replacing this i found that it caused the cam to split into two pieces. i replaced the cam and reassembled everthing and now it overheats. first i replaced the radiator and new radator cap (had the radiator from a 90 legend for the 2.7 liter engine) still overheats, next replaced thermostat, still overheats, next replaced waterpump and still overheats. what could still be the problem?

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The problem with overheat is due to poor coolant circulating. The main culprit is the Radiator. When the radiator is clogging up, coolant can't be circulating. The stagnant coolant inside the engine water jacket keeps absorb heat from combustion chambers having no way to dissipate the heat then the engine is overheated. You can test the water pump by removing the thermostat, then hooking everything back. Open the radiator cap, then turn on the engine to see if water flowing down to several small tubes inside the radiator. If water can't go down fast enough to cause over flow at radiator opening then your 90 Legend Radiator already got clogged up. Replace with a new radiator, not even a rebuilt one. Good luck.

Posted on Dec 13, 2009


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