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heat source

Discussion in 'Norton Commando Motorcycles (Classic)' started by htown16, Dec 8, 2009.

  1. bpatton


    May 19, 2009
    Any type of oven is preferable to using a torch. I know that Mick Hemmings uses one, but unless you really know your way around a torch you are asking for it. The issue is slow and even heating. You can possibly warp the things. You might want to leave the valve guides to a shop you trust anyway. There's a chance that an oversize might be needed and you won't be able to tell if you don't have the necessary tools to find out. That and the fact that the seats are probably going to need cutting afterward makes it a more straightforward job if you let the shop handle it from start to finish.
  2. Seeley920


    Jan 6, 2009
    Phew, I'm so glad I got rid of my wife....I use the oven almost as much for engine parts as cooking :)

    And I do cook a lot!!, but with 2 race motors to keep on top of, sometimes I just have to go hungry :)
    concours likes this.
  3. htown16

    htown16 VIP MEMBER

    Apr 29, 2009
    Ended up buying a Milwaukee heat gun. Worked just fine during my transmission stip down to remove bearings. Also bought some 250 temp sticks to use when I heat the case to reinstall bearings, just to make sure I am heating it enough.
  4. concours

    concours VIP MEMBER

    Dec 29, 2011
  5. concours

    concours VIP MEMBER

    Dec 29, 2011
    It was never a big deal in my house...
    “I’ve got to use the oven for an hour, for engine parts. I’ll open the windows, the paint smell will be gone in no time.”


    Probably becsuse she saw me do it since we first were together.
    Torontonian likes this.
  6. Danno


    Feb 7, 2010
    Torch is good for singular parts and bearings, rocker shafts etc, but I would definitely use an oven or grill to heat the head prior to pressing valve guides in or out.
  7. Interbak


    Jan 21, 2015
    I picked up a large convection oven at a yard sale for $20, works perfect, doesn’t take up much space. It’s big enough for a head, or half an engine case at a time, also works great for baking paint.

  8. grandpaul

    grandpaul VIP MEMBER

    Jan 15, 2008
    It will work for powdercoating, too.

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