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ascendedmind · 06-20-2016, 07:50 PM

Why Does 1985 CRX Now Run Hot with new Water Pump?

I just had my timing belt & water pump replaced by a mechanic on my carbureted 1985 Honda CRX HF.
The water pump is by Aisin & timing belt by Gates.

I had absolutely no issues before & until after installing the timing belt & water pump. In other words it never ran hot.
However, it now runs very hot & up to the max line.

Note: The air conditioner works & the fan blower works, but the heater does not appear to work as I feel no heat.

Mechanic says if there is no heat coming out when both the heater & fan are turned on-then it typically indicates the water pump is not circulating. Is it possible my mechanic overlooked something?

Any suggestions on what I should test or do?

The mechanic replaced the thermostat, which really slowed down the engine from heating up when parked. However it still gradually climbs towards the max line or max temp, just not as quickly as before.

The engine cooling fan does not seem to work either.

The mechanic seems to think its the Aisin water pump. Your thoughts?

06-20-2016, 07:50 PM	#1 (permalink)
ascendedmind EcoModding Lurker Join Date: Mar 2016 Location: seattle Posts: 16 Thanks: 1 Thanked 2 Times in 1 Post	Why Does 1985 CRX Now Run Hot with new Water Pump? Why Does 1985 CRX Now Run Hot with new Water Pump? I just had my timing belt & water pump replaced by a mechanic on my carbureted 1985 Honda CRX HF. The water pump is by Aisin & timing belt by Gates. I had absolutely no issues before & until after installing the timing belt & water pump. In other words it never ran hot. However, it now runs very hot & up to the max line. Note: The air conditioner works & the fan blower works, but the heater does not appear to work as I feel no heat. Mechanic says if there is no heat coming out when both the heater & fan are turned on-then it typically indicates the water pump is not circulating. Is it possible my mechanic overlooked something? Any suggestions on what I should test or do? The mechanic replaced the thermostat, which really slowed down the engine from heating up when parked. However it still gradually climbs towards the max line or max temp, just not as quickly as before. The engine cooling fan does not seem to work either. The mechanic seems to think its the Aisin water pump. Your thoughts?