I've owned a few Hondas but I'm not real familiar with the Odessy. Check to see if the radiator cap is lower than the thermostat housing, if it is, the system may need bleeding to remove air trapped in the head. There should be a bleed screw on the thermostat housing, heat the engine up, open the bleed screw til water starts squirting out then close the bleed screw. It may help

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DNSDC said..
I've owned a few Hondas but I'm not real familiar with the Odessy. Check to see if the radiator cap is lower than the thermostat housing, if it is, the system may need bleeding to remove air trapped in the head. There should be a bleed screw on the thermostat housing, heat the engine up, open the bleed screw til water starts squirting out then close the bleed screw. It may help

Yeh that was my thought a steam lock.

I had trouble with a blocked catalytic converter in the exhaust system, causing my car to overheat on our 76 km trip into town.

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Chook2 said..

Yeh that was my thought a steam lock.

I had trouble with a blocked catalytic converter in the exhaust system, causing my car to overheat on our 76 km trip into town.

Had the same problem with a 1970's DJ5 Jeep, until the cat "fell off", rapidly followed by the smog pump

Then I hung a ruddy great free flowing exhaust under the passenger floor - exiting out the side.

No overheating hassles after that, but you couldn't hear anything over the exhaust noise...


stephen

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DNSDC said..
I've owned a few Hondas but I'm not real familiar with the Odessy. Check to see if the radiator cap is lower than the thermostat housing, if it is, the system may need bleeding to remove air trapped in the head. There should be a bleed screw on the thermostat housing, heat the engine up, open the bleed screw til water starts squirting out then close the bleed screw. It may help

if so, better to use a coke bottle (cut off bottom) like a funnel in the radiator cap, to get a head of water higher than the thermostat. Whilst mate fills coke bottle, open bleed screw until coolant comes out. That way it is full.
Yours relies a bit on water expansion when hot and you don't know just how "underfull" it is at the end