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  1. pat_pending

    Sight glass for fuel tanks etc

    Thanks Stan. Good to know. P
  2. pat_pending

    Any advice on how to make a decent looking prop nut for model aero?

    Hi, I normally go with a basic nut made of out mild steel hex bar on my aeros (or a nyloc nut on occasion). On my most recent build I thought I'd complete the look and make a nice prop nut/spinner as below. Anyone got any links/tips/tricks how to get the shape right? Any info appreciated as it...
  3. pat_pending

    Sight glass for fuel tanks etc

    great thread. Excellent to see other people's approaches. While we're on the subject of not 'cheating' and making your own. The one shown on the tank above was cut as below with a circular glass cutter. Took about an hour and great result. Without a lot of practice i got a near perfect glass...
  4. pat_pending

    Sight glass for fuel tanks etc

    cool! have bookmarked though not sure what the postage from US to UK might be... will have a look.
  5. pat_pending

    Naylon Viper

    Loud as hell. love it. Funnily enough, the fastest runner had no cutaway on the crank for counterbalance (that engine was made from the not quite perfect/blemished parts I had left from the other two). Goes like stink!
  6. pat_pending

    Sight glass for fuel tanks etc

    Hi Bob. I used Cyanoacrylate glue. No problems with petrol/gasoline, Coleman fuel, Nitro glow fuel or Ether/Paraffin model CI engine fuel. The only annoyance is the white residue that can form on the inside of the glass as it dries.... not a biggie.
  7. pat_pending

    Sight glass for fuel tanks etc

    Hi, after playing around and wasting a load of time cutting my own glass disks to make sight glass on the Webster and other builds, I went searching for somewhere I could buy them pre-cut. Took me a while and thought I'd share with anyone thats interested. In the end the right search term was...
  8. pat_pending

    Naylon Viper

    I just made three to the prototype design. They really are a great little engine. Any idea of RPM on a 8x4? i clocked mine at 13,000. No idea whether thats decent or not. Im tempted to get one back on the lathe and open up the transfer passage in the crank case ( i was scared of going too far...
  9. pat_pending

    Hello from Germany :)

    Hi Ferdinand. Welcome to the forum!
  10. pat_pending

    Peggy - my Holly Buddy remix - 2.5cc CI engine

    A few pics making the crankshaft and cylinder liner. Hole drilled with a drill for most of the distance with a jobber drill and then cleaned up and the bottom flattened with a 4-flute endmill. I bought a slitting saw exactly the right size to make the exhaust ports. This seemingly simple...
  11. pat_pending

    Naylon Viper

    Nice one mate. Lovely looking engine. Well done 👍
  12. pat_pending

    Peggy - my Holly Buddy remix - 2.5cc CI engine

    Making the Venturi and NVA Reamer made from a bit of the same 1.56mm piano wire i used to make the needles. make sure there's an airtight fit between the NVA and the venturi. Dremel used to make up some needles @11degrees. Silver soldering makes me nervous no matter how many...
  13. pat_pending

    Peggy - my Holly Buddy remix - 2.5cc CI engine

    Hi all, after procrastinating for months and clearly overthinking the problem of how to make the crankshaft for a twin diesel I/C engine, I decided I needed to be making some swarf over Christmas to decompress from work. After poring over the MotorBoys plans for a while I ended up on Adrian's...
  14. pat_pending

    Twin aero CI/diesel - some advice needed

    Thanks Peter. Any recommendation on the fit? Also, any tips on keeping everything aligned while pressing together? -Patrick
  15. pat_pending

    Twin aero CI/diesel - some advice needed

    Thanks Peter, so the sequence would be get an on-size 7/32 (5.56) mm pin such as below, ream an on-size 5.5mm hole and open up a bit with a 5.5mm diamond reamer as you suggest above? Any tips on how to gauge the fit?
  16. pat_pending

    Twin aero CI/diesel - some advice needed

    LOVING this thread. Thanks for all the replies. Right now im leaning more towards the pressed pin assembly (possibly with a splash of loctite for good measure). My main reasoning is that it would: 1) allow me to make one-piece conrods and fit before assembly. If I were silver soldering, I'd be...
  17. pat_pending

    Sieg SC6 headstock bearing replacement

    Hi Farsider. Glad it helped and thanks for letting me know. Patrick
  18. pat_pending

    Twin aero CI/diesel - some advice needed

    Thanks for all the advice. Im wary about silver soldering because of heat distortion and the need for cleanup/machining at the end. I think braising might be the same. The engine i'm thinking about is 5cc so the crank parts will be very small. Id' be worried braising as I might also melt...
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