# 447 How to opperate a Van Norman 777 boring bar

Поделиться
HTML-код
  • Опубликовано: 29 окт 2024

Комментарии • 29

  • @apfish3557
    @apfish3557 Год назад +2

    Most mechanics nowadays will tell ya to get a new block compleat from the factory but this method is how it mostly used to be done
    Nice looking job

  • @dirtlump
    @dirtlump Год назад +5

    Still one of the best Boring Bars ever produced !
    WE used to square the Block decks 'parallel' to the mainline beforehand to ensure the Boring Bar would 'bore' as close to 90" to the mainline as possible.
    Just say'in, quite common the Block Decks are NOT parallel to the mainline from factory and quite often are out .007" to .010" or more 'end to end' from the mainline.
    "Boring" with a Carbide cutter on Cast Iron will result in 'fracturing' of the parent Cast Iron left behind in the Cylinder after cutting.... this 'fracturing' can be .004" to .005" deep.... and hence AERA, SAE, Piston Ring Manu's like Hastings, etc.,.... ALL used to reccommend an absolute 'minimum' of .003" be left for "HONING" to remove as much of that residual fracturing in the Cylinder Walls as possible.

  • @fred463
    @fred463 Год назад +2

    Thank you. I was given one of these boring bars but I had no clue on how to operate it. I think with your help I will be able to..... I am familiar with bridgeport mills and lathes but a boring bar is new to me.

  • @bobcote1375
    @bobcote1375 2 года назад

    Neat!! I never have seen this before. Thank You for sharing 🏁

  • @findvoltage
    @findvoltage Год назад

    Thanks, i learned alot. Seems i have got lucky finding your vids. 👍

  • @vinmandich7756
    @vinmandich7756 День назад

    How are you i moved back to maine about 5 yrs ago I grew up here in Solon until 13 then moved to Florida central fl where that summer i met my dad's bro who owned a automotive machine shop on i went to work for him two days after and never looked back when i moved here i had to sell my shop and sold it as a complete lathe mill crank grinder boring bars valve and seat tooling exc I'm tryingbto recoop from that I should never done it ... I bought a couple pieces so far I acquired a soyluthbend mill a van norm 777 bore bar hall toledo seat grinder i grew up in a performance shop so do more performance builds it takes me forever to use a bore bar but once I get my system down I can cut a square to crank and deck surface round hole when i bought this boring bar i searched for the tool kit and hold downs which I usually use tool steel 2 inch bar and mount the hold down threw the main saddle . Do you have enough parts or a tool kit for sale i always heard of people looking for them i always said why would you buy a bore bar without the tooling and here I am I can r get ahold the guy or remember where he lived

  • @philhall5609
    @philhall5609 Год назад

    Great video!!!!!!
    Good info . Never used one but may get the chance soon.

  • @michaelking3542
    @michaelking3542 2 года назад +1

    I have an identical bar. I really enjoyed the video. I'd like to have seen the hook on top for the cherry picker. I don't like to hone more than .002 either.

    • @survivingmaineona20acrefar77
      @survivingmaineona20acrefar77  2 года назад

      Honing is the part i am not fond of either.

    • @thomasleclair7418
      @thomasleclair7418 2 года назад

      @@survivingmaineona20acrefar77 ,,,,,,,,,,,,,,what precludes the honing operation for best ring seal,,,is paramount..........I believe a block should be bored in its total stress condition,, meaning ,,, torque plates on the bank or banks and main caps torqued to given spec.........for perfection , ya need the ridgidity of a boring mill...

  • @thomasleclair7418
    @thomasleclair7418 2 года назад

    ,,,,,,,,Thank you sir....I had a chance of buying a bar like yours,,,,,and did not know the set -up operations,,,,,,,,,I would have been screwed into russia..............Anyway, I worked in an automotive machine shop that had a big boring mill,,,,,the owner named it Godzilla......NO CHATTER......

  • @MechanicalEngineering485
    @MechanicalEngineering485 Год назад

    Good job

  • @gaborkorthy8355
    @gaborkorthy8355 7 месяцев назад

    I have the same boring bar I have used to bore motorcycle cylinders using a boring table. My problem is setting the cutter. I set it up as you showed but never get the bore the size it is set to I even sent out my setting micrometer and had it calibrated? Any suggestions

    • @survivingmaineona20acrefar77
      @survivingmaineona20acrefar77  7 месяцев назад

      Keep the tool warm in your pocket even before you set it so it will grow less in the cut. and also make sure you hold pressure on the tool tight on the same side of the mike. I hope this helps

  • @aaaaaaaaaaaaaa4151
    @aaaaaaaaaaaaaa4151 3 месяца назад

    After its cut the bore how do you retract with out scratching the new bore? thanks

    • @survivingmaineona20acrefar77
      @survivingmaineona20acrefar77  3 месяца назад

      Retract the cats paws and slide the bar back then lift.

    • @aaaaaaaaaaaaaa4151
      @aaaaaaaaaaaaaa4151 3 месяца назад

      @@survivingmaineona20acrefar77 Thanks for that, if your doing two cuts it wont matter scratching the bore on retract but will it damage the cutter?

    • @survivingmaineona20acrefar77
      @survivingmaineona20acrefar77  3 месяца назад

      @@aaaaaaaaaaaaaa4151 It's carbide and doesn't seem to be bothered by it.

  • @frankcadillac9151
    @frankcadillac9151 2 года назад

    Tim, can you still get the parts for older Van Norman equipment.? I had an in chassis crank throw grinder, never really trusted it, a friend just had to have it.

    • @survivingmaineona20acrefar77
      @survivingmaineona20acrefar77  2 года назад

      i don't know for sure,there are after market tool holders but i don't know who makes them

    • @charlesmayberry2825
      @charlesmayberry2825 2 года назад

      There are some parts still sold by Van Norman, and some aftermarket, but I'd check their site first shop.winonavannorman.com/

    • @frankcadillac9151
      @frankcadillac9151 2 года назад

      @@charlesmayberry2825 Thanks Charlie, kinda looks like they're just a shadow of what they used to be.

  • @kennethoblenesjr8493
    @kennethoblenesjr8493 2 года назад

    I have a 1988 460 are they worth anything?

  • @abrown5449
    @abrown5449 Год назад

    Where in Maine ???