FormaCars

Visit our community sponsor

Thanks Thanks:  0
Likes Likes:  0
Results 1 to 5 of 5

Thread: Coyote Heater Coolant Supply & Return?

  1. #1
    Member tcollins's Avatar
    Join Date
    Apr 2012
    Location
    Oxford, Michigan and Scottsdale AZ (winters)
    Posts
    74
    Post Thanks / Like

    Coyote Heater Coolant Supply & Return?

    Does anyone know if that 5/16 dia. heater circuit flow connector that is specified in Coyote coolant system diagram is only for filling and purging?

    Background: I plumbed my heater circuit per the instructions, but couldn’t get the heater to work until I plugged the “H” connector. The Vintage Air heater control valve I have is either open or closed when the car is on and the heater is off. So per the Coyote instructions, you need the heater supply and return ports to be connected to purge air from the RH head. So I designed this aluminum block with the 5/16 cross hole but when it was opened, no coolant was getting to the heater. The system was filled and vacuum purged, so it wasn’t an air trap.

    Should I buy this upgraded Thermotion heater control valve that FFR seems to now be using?

    Heater bypass cross hole.JPG Coyote heater circuit.JPG updated heater control valve flow.jpg updated heater control valve PN.jpg coolant system note.JPG

  2. #2
    Senior Member CVOBill's Avatar
    Join Date
    Oct 2014
    Location
    Vermilion, OH
    Posts
    440
    Post Thanks / Like
    Tim,

    I have the H-pipe in my heater hoses and the heater works great, I don't see a reason for you to buy the valve.
    CVOBill
    MK2 #???? Delivered 11/2002, Finished and Titled 6/2003 5.0, T-5, 4-Link, Sold 3/2005
    Hot Rod #304 purchased 5/28/2017 from original owner Unassembled . Titled and plated 8/24/2017 Coyote,
    TKO, 3-Link, Heat, A/C, Electric Power Steering, Convertible top
    MK4 #9524 Picked up 1/18/19 306 Blueprint, T-5, 4-Link, Gas-N Pipes, Heater

  3. #3
    Senior Member
    Join Date
    May 2016
    Location
    North of sacramento Ca.
    Posts
    866
    Post Thanks / Like
    However you do the heater there has to be water movement in both heads with heater off.

  4. #4
    nkw8181's Avatar
    Join Date
    Sep 2013
    Location
    Dallas, TX
    Posts
    762
    Post Thanks / Like
    I had ther wrong thermostat trinary switch. Check it and check with factory five. Mine works with the correct one. I went through everything several times before we determined that to be the problem.
    Nolan
    65 coupe Gen 3 "Phoenix" build
    http://thefactoryfiveforum.com/showt...032#post297032

    818 s (with r windscreen ) 350 rwhp. Registered and street legal (SOLD)

  5. #5
    nkw8181's Avatar
    Join Date
    Sep 2013
    Location
    Dallas, TX
    Posts
    762
    Post Thanks / Like
    I believe it can be seen by the wire colors
    Nolan
    65 coupe Gen 3 "Phoenix" build
    http://thefactoryfiveforum.com/showt...032#post297032

    818 s (with r windscreen ) 350 rwhp. Registered and street legal (SOLD)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Breeze

Visit our community sponsor