PotM GrandMarq.NET - Panther Headquarters Forum Index PotM
GMN Chat Room GMN's STORE!! GMN's Gallery Please!!
Results 1 to 19 of 19

Thread: heater core restrictor

  1. #1
    Member
    Join Date
    Nov 2020
    Location
    Olathe Kansas
    Posts
    75

    Default heater core restrictor

    Are you guys running a restrictor in the inlet line? Im pretty sure its the passenger side line, correct?
    1987 CV LX 5.0

  2. #2
    Beater gonna beat sly's Avatar
    Join Date
    Mar 2010
    Location
    Lewisville, TX
    Posts
    22,207

    Default

    The line from the pipe near the thermostat is the "input" side of the heater core. The one that goes back to the water pump is the "output". So typically this should be the driver side of the heater core, but follow the hoses. That will give you the correct one. They can flow either way.

    Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
    rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)
    Quote Originally Posted by gadget73
    ... and it should all work like magic and unicorns and stuff.
    Quote Originally Posted by dmccaig
    Overhead, some poor bastards are flying in airplanes.

  3. #3
    Member
    Join Date
    Nov 2020
    Location
    Olathe Kansas
    Posts
    75

    Default

    Quote Originally Posted by sly View Post
    The line from the pipe near the thermostat is the "input" side of the heater core. The one that goes back to the water pump is the "output". So typically this should be the driver side of the heater core, but follow the hoses. That will give you the correct one. They can flow either way.
    Sly, are you running a restrictor? Think ill just jam a 1/2 socket in there and hose clamp it.
    1987 CV LX 5.0

  4. #4
    I'm an air-conditioned gypsy gadget73's Avatar
    Join Date
    Jan 2005
    Posts
    40,229

    Default

    I'm using a washer on mine. This is the official item

    https://lmr.com/item/LRS-18599A/79-0...low-Restrictor

    86 Lincoln Town Car (Galactica).
    5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

    91 Lincoln Mark VII LSC SE, triple black (Timewarp) - poly front bushings, KYB struts and shocks, Holley SystemMax1 lower intake, SilverFox AOD valve body,

    1984 Lincoln Continental TurboDiesel - rolls coal

    Quote Originally Posted by phayzer5 View Post
    I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

  5. #5
    The Brown Blob 87gtVIC's Avatar
    Join Date
    Sep 2008
    Location
    Whitestone, NY
    Posts
    20,043

    Default

    I am running the official item.
    ~David~

    My 1987 Crown Victoria Coupe: The Brown Blob
    My 2004 Mercedes Benz E320:The Benz

    Quote Originally Posted by DerekTheGreat View Post
    But, that's just coming from me, this site's biggest pessimist. Best of luck

  6. #6
    Road Warrior Kodachrome Wolf's Avatar
    Join Date
    Nov 2014
    Location
    Evans, GA
    Posts
    1,769

    Default

    I’ve got a 13mm in mine.

    My Cars:
    -1964 Comet 202 (116K Miles) - Awaiting Resurrection
    -1987 Grand Marquis Colony Park LS (325K Miles) - April 2017 + September 2019 POTM Winner
    -1997 Grand Marquis LS (222K Miles) - The Daily Workhorse & March 2015 + January 2019 POTM Winner

  7. #7
    Member WagonMan's Avatar
    Join Date
    Sep 2004
    Location
    Bridgewater Ct.
    Posts
    733

    Default

    Does a restrictor give you more heat? I put a new heater core in my 90 without ATC and I barely get any heat out of it. Even with the 195 degree thermostat. WagonMan
    1990 Colony Park
    1970 HEMI Superbird

  8. #8
    I'm an air-conditioned gypsy gadget73's Avatar
    Join Date
    Jan 2005
    Posts
    40,229

    Default

    no, it just makes the core less likely to pop if you wind the engine up a bunch.

    86 Lincoln Town Car (Galactica).
    5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

    91 Lincoln Mark VII LSC SE, triple black (Timewarp) - poly front bushings, KYB struts and shocks, Holley SystemMax1 lower intake, SilverFox AOD valve body,

    1984 Lincoln Continental TurboDiesel - rolls coal

    Quote Originally Posted by phayzer5 View Post
    I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

  9. #9
    Member
    Join Date
    Nov 2020
    Location
    Olathe Kansas
    Posts
    75

    Default

    Quote Originally Posted by WagonMan View Post
    Does a restrictor give you more heat? I put a new heater core in my 90 without ATC and I barely get any heat out of it. Even with the 195 degree thermostat. WagonMan
    Just did my sons core. It blows 165 degrees out the floor vent. Plenty toasty!

    Were your blend and mode door ok in the hvac box?
    1987 CV LX 5.0

  10. #10
    Beater gonna beat sly's Avatar
    Join Date
    Mar 2010
    Location
    Lewisville, TX
    Posts
    22,207

    Default

    Quote Originally Posted by mcb82gt View Post
    Sly, are you running a restrictor? Think ill just jam a 1/2 socket in there and hose clamp it.
    I was using the flush T as a restrictor until I put in the coolant filter. That's a good restrictor too.

    Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
    rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)
    Quote Originally Posted by gadget73
    ... and it should all work like magic and unicorns and stuff.
    Quote Originally Posted by dmccaig
    Overhead, some poor bastards are flying in airplanes.

  11. #11
    Member
    Join Date
    Nov 2020
    Location
    Olathe Kansas
    Posts
    75

    Default

    Quote Originally Posted by sly View Post
    I was using the flush T as a restrictor until I put in the coolant filter. That's a good restrictor too.
    Any info on the coolant filter? I think that would be good on his car. Coolant was very rusty cruddy after several flushes it better, but not perfect.
    1987 CV LX 5.0

  12. #12
    Beater gonna beat sly's Avatar
    Join Date
    Mar 2010
    Location
    Lewisville, TX
    Posts
    22,207

    Default

    I used the flush T on the heater core input line and just ran hoses from that to the filter (in from engine, out to heater core). I used the following item from Amazon to do it and mounted it on a makeshift bracket I made.
    Filter mount:
    https://www.amazon.com/gp/product/B000CSINYU/

    Filter:
    https://www.amazon.com/gp/product/B0014B8S8A/

    Reader's Rides post:
    Wife's car: http://www.grandmarq.net/vb/showthre...l=1#post806998
    The cake: http://www.grandmarq.net/vb/showthre...l=1#post811320

    Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
    rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)
    Quote Originally Posted by gadget73
    ... and it should all work like magic and unicorns and stuff.
    Quote Originally Posted by dmccaig
    Overhead, some poor bastards are flying in airplanes.

  13. #13
    Member
    Join Date
    Nov 2020
    Location
    Olathe Kansas
    Posts
    75

    Default

    Quote Originally Posted by sly View Post
    I used the flush T on the heater core input line and just ran hoses from that to the filter (in from engine, out to heater core). I used the following item from Amazon to do it and mounted it on a makeshift bracket I made.
    Filter mount:
    https://www.amazon.com/gp/product/B000CSINYU/

    Filter:
    https://www.amazon.com/gp/product/B0014B8S8A/

    Reader's Rides post:
    Wife's car: http://www.grandmarq.net/vb/showthre...l=1#post806998
    The cake: http://www.grandmarq.net/vb/showthre...l=1#post811320
    Whoa! I was envisioning something inline like a clear fuel filter thing made bigger for coolant lines.
    1987 CV LX 5.0

  14. #14
    The Brown Blob 87gtVIC's Avatar
    Join Date
    Sep 2008
    Location
    Whitestone, NY
    Posts
    20,043

    Default

    He went all "overkill is underrated" on it.
    ~David~

    My 1987 Crown Victoria Coupe: The Brown Blob
    My 2004 Mercedes Benz E320:The Benz

    Quote Originally Posted by DerekTheGreat View Post
    But, that's just coming from me, this site's biggest pessimist. Best of luck

  15. #15
    Beater gonna beat sly's Avatar
    Join Date
    Mar 2010
    Location
    Lewisville, TX
    Posts
    22,207

    Default

    Quote Originally Posted by 87gtVIC View Post
    He went all "overkill is underrated" on it.
    THIS.
    I put a "small diesel" style setup on my cars.

    That said, my wife's car was really bad with the chunks and debris in the coolant system and the first filter clogged up in 2 weeks which was just about 50 miles of driving. The next one about 2 months. Then I managed to last until oil changes after that.

    Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
    rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)
    Quote Originally Posted by gadget73
    ... and it should all work like magic and unicorns and stuff.
    Quote Originally Posted by dmccaig
    Overhead, some poor bastards are flying in airplanes.

  16. #16
    I'm an air-conditioned gypsy gadget73's Avatar
    Join Date
    Jan 2005
    Posts
    40,229

    Default

    Only way to get effective cleaning of water without choking the flow rate horribly is to have a lot of filter surface area.

    86 Lincoln Town Car (Galactica).
    5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

    91 Lincoln Mark VII LSC SE, triple black (Timewarp) - poly front bushings, KYB struts and shocks, Holley SystemMax1 lower intake, SilverFox AOD valve body,

    1984 Lincoln Continental TurboDiesel - rolls coal

    Quote Originally Posted by phayzer5 View Post
    I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

  17. #17
    P31 Pursuit Car Brown_Muscle's Avatar
    Join Date
    Jan 2008
    Location
    New Jersey
    Posts
    3,117

    Default

    I what size is the recommended washer hole to use? If you go too small I'm guessing heat output will suffeR?
    -Phil



    +1982 Ford LTD-S Police Car. 351w, GT40 Heads, Edelbrock 1906 Carb, Full exhaust headers to tails. 3.27 Trac-Lok Rear. Aluminum Police Driveshaft. Speedway Springs+Bilstein Shocks, Intermediate Brakes, Baumann Shift kit.

    +2003 Acura CL Type S 6-speed

  18. #18
    Beater gonna beat sly's Avatar
    Join Date
    Mar 2010
    Location
    Lewisville, TX
    Posts
    22,207

    Default

    Some folks use a cheap socket as a restrictor. So I doubt there's any need to worry about the hole size. As long as there's flow, you will get heat.

    Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
    rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)
    Quote Originally Posted by gadget73
    ... and it should all work like magic and unicorns and stuff.
    Quote Originally Posted by dmccaig
    Overhead, some poor bastards are flying in airplanes.

  19. #19
    Stow It! GM_Guy's Avatar
    Join Date
    Sep 2008
    Location
    Ontario, Canada
    Posts
    3,418

    Default

    Quote Originally Posted by WagonMan View Post
    Does a restrictor give you more heat? I put a new heater core in my 90 without ATC and I barely get any heat out of it. Even with the 195 degree thermostat. WagonMan
    Gives you less heat. When I replaced my core I used it since it was in the box and with all the hubbub about restrictors back then put it in. Removed it when winter hit for more heat. Never ran restrictors in my Generals, sure don't see any need for it with a ford.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
GMN Approved Links!


www.rockauto.com www.adtr.net