| Heater Isolation Valve [message #350721] |
Sun, 15 December 2019 19:37  |
Melbo
Messages: 144
Registered: August 2018
Location: Albuquerque NM
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I am making a plan for the replacement of my timing chain and gears. While I have to drain the coolant and remove everything in front of the timing chain and gears I figured it is a good time to do some preventative maintenance and replace all the heater and radiator and other misc hoses so I am off to a fresh start when everything goes back together. Someone who worked on this unit before me installed two shutoff valves for the heater. One is on each hose and both are manually operated by opening the hood and turning them with a wrench or other implement. I was wondering if TWO vavles are necessary. I like being sure something is going to work BUT if no water can get to the heater core OR no water can get out isn't that sufficient?? Of course all the belts will be replaced as well. While studying the way to do this I see where when you use a 100 amp alternator it is a good idea to have a two sheave pulley on the alternator. Where does the extra belt run? Is this something I should upgrade while I have the front of the engine apart. Harmonic balancer, water pump, etc will all be off so any changes would be better now instead of later.
Thanks for all the help and information with this project.
Melbo
Albuquerque NM Bus Conversion 1978 MCI 1973 GMC
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