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2 replies

Air Hoses

srblowersrblower Supporting Member

Hi Guys. Just a bit of advice please. I have the card type hoses from the fan to the heat exchangers. I want to insert the connectors at the engine tins to allow the hoses to be in two parts. I have aluminium hoses for the underside of the tin to the exchangers but have bought plastic hoses for the top of the tin to the fan housing. It says these plastic hoses are OK for standard engines i.e. not too much heat......I have a slightly modified 1800. Do you think these hoses will be OK ? They're black and look good, the aluminium too. Card hoses touch the exhaust and are looking worst for wear.

1957 Chesil(Speedster)

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Gordon NicholsGordon NicholsMassachusetts 1993 CMC Supporting Member

The upper hoses carry relatively cold air from the fan shroud to the heater boxes so they should be OK for carrying the heat.  The problem might be just heat soak from the engine when turned off on a hot day after highway running.  If they get hot enough from residual engine heat, they'll start to get soft, sag and droop.  Just watch them on hot days.  VW used a paper-coated aluminum tube for that application.  It could take a lot of heat, but then they didn't have some of our modern polymer plastics back then, either...

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