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Cadillac & LaSalle Club Discussion Forum

Cadillac & LaSalle Club Forums => General Discussion => Topic started by: Frank B on July 24, 2005, 05:12:45 PM

Title: Heater hoses on a 500CI Cad engine
Post by: Frank B on July 24, 2005, 05:12:45 PM
Where are the heater hose connections on a Cadillac 500 ci engine? My brother-in-law is using one in a hot rod but cant locate the heater inlet/outlet? Theyre not on the water pump as I expected.
Title: Re: Heater hoses on a 500CI Cad engine
Post by: Michael Stamps 19507 on July 24, 2005, 06:28:43 PM
One should be on the right behind the water pump below and to the right (from the front of the engine) of the thermostat housing.  The other one comes off the radiator.

Stampie
Title: Re: Heater hoses on a 500CI Cad engine
Post by: Michael Stamps 19507 on July 24, 2005, 06:29:49 PM
Change all of the rights to lefts.  Im a little confused in my old age.

Stampie
Title: Re: Heater hoses on a 500CI Cad engine
Post by: Frank B on July 24, 2005, 09:47:28 PM
Thanks Stampie however the engine came with a piece heater hose coming out of the backside of the passenger side head. Whats that for?
Title: Re: Heater hoses on a 500CI Cad engine
Post by: Michael Stamps 19507 on July 24, 2005, 10:47:15 PM
Thats a later head.  Sorry but Im a 70 guy.  That would replace the one under the thermostat housing.  You dont have both do you?

Stampie
Title: Re: Heater hoses on a 500CI Cad engine
Post by: Mike #19861 on July 25, 2005, 08:01:33 AM

 Yes, that would be for the heater hose. The other, as Stampie stated, comes from the rt side radiator tank.

  Mike
Title: Re: Heater hoses on a 500CI Cad engine
Post by: Denise 20352 on July 28, 2005, 03:47:24 PM

  It goes up to the heater control valve.  One you get the head removed, the hose is fairly easy to replace.

-d
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