High Quality Chainsaw Bars Husqvarna Toys Hockfire Saws

Recent content by SuperII

  1. S

    JRed 670 Impulse quandry

    By the way, if anyone has the proper clamp for the boot to cylinder area that they would part with that would be a bonus. Although from what I read, the early ones used a wire, which is what it had on it. That could be done as well, thanks.
  2. S

    JRed 670 Impulse quandry

    Hard to tell but looks uncut. I found a NOS piston and a squish test will tell me i guess. And i can get a repro boot, without the moulded in pulse passage, so as to abandon the internal pulse port. Only thing is, what to do with the internal pulse nipple on the intake manifold. Cut off and epoxy??
  3. S

    JRed 670 Impulse quandry

    The Cyl. Base does not look like it has been cut. It has the casting texture and cast edges.
  4. S

    JRed 670 Impulse quandry

    This, to me, looks like it was made this way. Not sure what their thing was. If this is a very early saw and were moving from internal to external, why would they go to the extra work. Maybe it was transition and they were using up old cylinders and just added the external port. :bash:
  5. S

    JRed 670 Impulse quandry

    The base gasket was very thin with a slathering of silicone. I pulled the rubber boot last night and will post a pic of the internal and external pulse ports. Maybe i have the proverbial unicorn of the week.
  6. S

    JRed 670 Impulse quandry

    It doesn’t look like any pop up i have ever seen. It looks homemade.
  7. S

    JRed 670 Impulse quandry

    Ya think? That one will be on the wall of shame. Why would someone do that. Did someone just think that up, or is there some reason in a land far away to do this?
  8. S

    Best penetrating oil

    Retired hvy equip mech here, PB lit my world on fire although Kroil is just as good if not better. A little bit of a different environment usage, PB cheap, Kroil not so much. I drank the kool-aid awhile back and bought a small bottle of Superzilla and the jury is still out but so far it has...
  9. S

    Best penetrating oil

    +1
  10. S

    JRed 670 Impulse quandry

    And here is the top of the piston in question, thoughts?
  11. S

    JRed 670 Impulse quandry

    Thanks. And to be clear, I am not necessarily trying to solve the riddle, although it would be interesting, I am merely trying to find a path forward. Thank you all for the help.
  12. S

    JRed 670 Impulse quandry

    Carb.
  13. S

    JRed 670 Impulse quandry

    Her you go.
  14. S

    JRed 670 Impulse quandry

    Do any of you guys know the born on date from this saw, I don’t know the magic calculations.
  15. S

    JRed 670 Impulse quandry

    It has always had the pulse line hooked up. The impulse passage is moulded into the rubber boot and is open to the cylinder, although it had some silicone in it which leads me to believe that there was some attempt to block this internal passage. I just don’t understand why both systems are...
Top