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Removing Cap on Heating Oil Tank (To Install Gauge)

mike212
mike212 Member Posts: 50
I'd like to install a wifi connected gauge in my oil tank. There are two spots, one where there is a traditional gauge already which I'd prefer to leave as is and the other spot which is available and has a large square nut attached to a cap that seems like its should unscrew given enough force but I can't get it to budge.

I'm using a straight pipe wrench which grabs the nut perfectly, but I can't get it to move. I'm thinking I should pick up a pipe tomorrow that I can slip on to the wrench handle to get more leverage, but before I over force it, should I 1) try using WD40 or some other solvent to loosen the cap? or 2) try peeling back the coating around the cap, maybe that is gripping it shut?




Comments

  • STEVEusaPA
    STEVEusaPA Member Posts: 6,506
    edited November 2019
    Yeah, long cheater. Don't move the tank...
    Spraying anything won't help.
    steve
    mike212
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,453
    Yeah a cheater pipe will work
    mike212
  • HVACNUT
    HVACNUT Member Posts: 5,804
    What tool are you using? A 2 ft pipe wrench? Good. 14" pump pliers? Not so good.
  • mike212
    mike212 Member Posts: 50
    edited November 2019
    @HVACNUT a 14" straight pipe wrench. I see arm is a little short but I imagine if I find the right pipe to fit on, it will work just fine I hope. The tank is just 3 years old so it shouldn't be stuck too bad.
  • mike212
    mike212 Member Posts: 50
    It worked. Attached a 36 inch pipe and it came loose right away. Thanks!
    Intplm.