Kees
Not from the impeller but it is the seal that is lifted off the casting
against the spring pressure.
I think that you will find that very few British cars in the early 1950s
had pressurised cooling systems. In the latter part of the 1950s many
manufactures started to fit pressurised caps but only 4, 7 or 10 p.s.i.
I have found one on Bedford Viva van at 13 p.s.i. in an AC catalogue but
that specifically only applies when a special radiator is fitted.
Regards
>So the carbon seal gets lifted from the impellor. That is odd as it
>should easily hold more than 1bar as is the case in most cars of the
>era.
>Kees Oudesluijs
>
>Alan Seigrist schreef:
>> Nothing will give in the pump per se, it'll just leak water until it
>>fails.
>>
>> FYI, the radiator in my A90 in Hong Kong is not pressurized at all
>>(open system) - it actually keeps very cool even in the hottest
>>weather - radiator is clean, block is backflushed annually, 90% water
>>with wetter. Pressurizing the rad doesn't really get you there, it
>>should be a last resort.
>>
>> Alan
>>
>> '52 A90
>> '53 BN1
>> '64 BJ8
>>
>>
>> On Thu, Feb 19, 2009 at 3:15 PM, Oudesluys <coudesluijs@chello.nl
>><mailto:coudesluijs@chello.nl>> wrote:
>>
>> Michael,
>> What will give in the water pump?
>> Kees Oudesluijs
>>
--
John Harper
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