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  •  » I need to add a 2nd coolant sensor

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    3/28/2016 7:00 PM  #1

    Steve69
    Senior 24-7 FYI Addict

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    From: Madison Wisconsin
    Registered: 4/01/2013
    Posts: 2,769

    I need to add a 2nd coolant sensor

    Looks like this is coolant passage but a smaller than the one near the upper coolant hose on the manifold.  Can
    I use this with a adapter?   Thanks Steve69

     

    3/28/2016 8:58 PM  #2

    MS
    Forum Originator

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    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 12,345

    Re: I need to add a 2nd coolant sensor

    That appears to be the hole where the stock temperature sender should be placed.  It is had to tell from your picture exactly what Inam looking at.

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    3/29/2016 4:53 AM  #3

    Steve69
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    From: Madison Wisconsin
    Registered: 4/01/2013
    Posts: 2,769

    Re: I need to add a 2nd coolant sensor

    MS wrote:

    That appears to be the hole where the stock temperature sender should be placed. It is had to tell from your picture exactly what Inam looking at.

       Its the plug with a little bit of rust on it.   Its a smaller plug than the one that is on the left side of the manifold.

    Steve69
     

       •Thread Starter
     

    3/29/2016 6:29 AM  #4

    Mach1_Ron
    I FYI 24-7

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    From: Highland Village, Texas
    Registered: 5/28/2013
    Posts: 361

    Re: I need to add a 2nd coolant sensor

    That's where my Mechanical Gauge is Plumbed into...

    "The OLDER I Get....The FASTER I Was..."
     

    3/29/2016 4:35 PM  #5

    MachTJ
    I FYI 24-7

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    From: Wisconsin
    Registered: 5/18/2014
    Posts: 348

    Re: I need to add a 2nd coolant sensor

    looks to be  1/4 or 3/8 npt. I'm trying to compare to the 5/16 intake manifold bolt but I had too long of a day at work to be able to tell for sure which size it is. Yes you can put a sensor in that hole but know that once you pull the plug out all the coolant from that point to the top of the radiator will come gushing out.

     

    3/29/2016 7:29 PM  #6

    Lil' Hoss
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    From: Aberdeen, SD
    Registered: 4/04/2013
    Posts: 131

    Re: I need to add a 2nd coolant sensor

    That plug is 3/8th's NPT, What size temp sender are you trying ti install ? Should be able to get a bushing to reduce to 1/4 or 1/8th inch NPT

    The amount of fun is directly proportionate to the damage done.
     

    3/29/2016 8:48 PM  #7

    Steve69
    Senior 24-7 FYI Addict

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    From: Madison Wisconsin
    Registered: 4/01/2013
    Posts: 2,769

    Re: I need to add a 2nd coolant sensor

    Lil' Hoss wrote:

    That plug is 3/8th's NPT, What size temp sender are you trying ti install ? Should be able to get a bushing to reduce to 1/4 or 1/8th inch NPT

      I ordered a FiTech EFI so I haven't received it yet.  But I have a feeling its the same size as my Manual Temp Gauge sending unit.  Which is a larger size.  Ill have to go to Menards and see what adapters they have.   I plan on pumping the antifreeze down from the radiator and then adding it back in when Im done.   Thanks for the info guys!
     

       •Thread Starter
     

    3/29/2016 9:34 PM  #8

    Lil' Hoss
    FYI Addict

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    From: Aberdeen, SD
    Registered: 4/04/2013
    Posts: 131

    Re: I need to add a 2nd coolant sensor

    You don't want to adapt it up with a bell reducer as it will likely create an air pocket around the sensor and not read accurately, the sensor needs to be immersed in coolant. 

    The amount of fun is directly proportionate to the damage done.
     

     

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