Re: Over heating on 21 series
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Forum Ambassador
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When you had he waterpump off did you remove and check/clean the water distribution tube in the block? If the heat riser valve is present, is it opening when engine warms up or is it stuck closed? Any restriction (other than the heat riser) in the muffler or exhaust pipes?
Posted on: 2016/9/11 10:45
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Howard
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Re: Over heating on 21 series
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Quite a regular
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Honestly not checked that at all . Just replaced it
Need to be checked now Thank you
Posted on: 2016/9/11 10:57
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Re: Over heating on 21 series
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Home away from home
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If you operate outside the normal design parameters, expect issues. This is a vintage auto, not a modern rally car. You may need to stop occasionally to let things cool rather than drive on, out of range. You may need to modify/adapt your selection of lubricants, coolants, etc.
I wouldn't necessarily be concerned seeing 100 C coolant temperature, if the outside temperature is as you describe. They're pressure cooling systems, albeit low,~7 psig, so can operate slightly higher than atmospheric BP(100C) Energy travels from hot to cold, so it has to overcome the increased ambient conditions by increasing temperature to expel heat. This is normal. Gauge working/accuracy is a separate issue.
Posted on: 2016/9/15 8:41
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