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  1. makila

    4 channel Cox glow plug driver

    Ah, ok. I mis interpreted that.How do I send you the 40USD? Can I do that via PayPal?
  2. makila

    4 channel Cox glow plug driver

    Steve- Thinking about this a bit more - If the pics are prgrammed then I would be very interested, otherwise I have no hope of programming them if they need that. I note others are interested so I will let this one go, this is purely based on not being able to program the pics. I will keep...
  3. makila

    4 channel Cox glow plug driver

    Hi Steve, That would be great, if you find one I will pay all expenses (I am in the UK) For postage and some beer vouchers as well. The use of an automotive battery was my intended route and looking at the boards, they look like a row of mosfets or 220 cased bipolars with drivers that provide...
  4. makila

    4 channel Cox glow plug driver

    Hi Steve, Do you have the circuit diagram for the 4 channel glow plug driver? I have a 4 cylinder engine nearing completion and need to figure out how to supply all 4 plugs. I guess you have given these away by now. Many thanks Steve
  5. makila

    Cam shaft profiles.

    Hi all, I have had a reply from Volker Jung, see below, Hello, sorry, we have change the followed drawings. See the pdf`s. Mit freundlichen Grüssen Dipl.-Ing. Volker Jung The pdf files are attached for info. Looks like we were right to follow this one up, the cam sequence was not right...
  6. makila

    Cam shaft profiles.

    Hi, The prop has arrived and I can confirm it operates in the CCW direction as viewed from the front. The reference taken from the 2D drawings does not indicate the orientation of the two centre lobes, this information can only be obtained from the 3D view which was where the issue was...
  7. makila

    Twin in-line engine

    I used a 50 x 180mm piece of Meehanite cast iron to create the liners and rings from. The bore was bored to 34.5mm and honed the rest of the way to 35mm. I used the expanding 3 legged type of honing tool, they took a long time to do and I wore three sets out during the process. The Pistons were...
  8. makila

    Cam shaft profiles.

    The carbs are manufactured by ASP and they are the series 3 type - chosen because they are quite cheap. No idea how they perform yet. There are some details on www.justengines.co.uk
  9. makila

    Twin in-line engine

    Hi, I am a bit late in posting this engine - a twin cylinder in-line 62cc engine design from WWW.cad-modelltechnik-jung.de The plans are quite easy to follow and I have made just about all of the parts as can be seen from the picture. I had not taken pictures of the various stages of machining...
  10. makila

    Cam shaft profiles.

    I enjoyed making this engine, and thinking of the boxer next myself -toying with the 4 cylinder boxer which looks really good - maybe just the twin like yours. I hope that the cam is OK now you have made yours, I thought that the rule of thumb where the exhaust leads the intake cam a great point...
  11. makila

    Cam shaft profiles.

    Hi Petertha, I did look at the suggestion that the carbs would fit over the other side, and you are right, they would interfere with the push rods and rocker assemblies. I sent an email this morning to 'Jung' and surprisingly got a reply within a couple of hours which was very good, they are on...
  12. makila

    Cam shaft profiles.

    Thanks for the help, this really helps. Some good advice too, swapping the intake and exhaust positions - I never thought of that. Petertha, Haha - you tracked the engine down - great stuff. There is no idler, the drive is via a toothed belt (usual 2 to 1 ratio) thus the crank and camshaft turn...
  13. makila

    Cam shaft profiles.

    I am building a twin in-line engine and having machined the cam shaft blank I studied the profiles before progressing further. To my eye, the drawing is wrong. The shaft will rotate CCW looking rearwards from the front and the lobes themselves, positioned at 0 - 90 - 270 and 0 degrees, looks...
  14. makila

    Rupnow Ovehead Cam Air Cooled

    Good work Brian, the work you have produced is spot on to get the clearance right between the cam and the lifters. I have built a similar overhead version and purposely left a bit of extra material on the lifters so that once the cam assembly is attached, small adjustments can be made to the...
  15. makila

    Cx701 lathe report

    Hi Brian, I have the same cross slide assembly as yours and have often wondered whether the slide could be put on facing the other way thus having the gib screws on the chuck side along with the gib strip. Do you think that could be possible? This way would allow the attachment of the DRO...
  16. makila

    Lathe Carriage Position Indicator

    Hi Brian, Here is a version, not too dis-similar to your design, that I employed on my tail-stock. The DTI is a also 2 inch travel and was used to get accurate depths during my engine builds. It works very well and the bracket that attaches to the tail-stock spindle does not get in the way...
  17. makila

    Hand Tapper pricing - Buyer beware

    Hi Ron, Based on the pictures provided by the three retailers, the Grizzley one wins. My guess is this - Grizzley tend to buy in greater numbers, although varied items, from their suppliers therefore quantity sales verses profit, whereas the others are possibly smaller dealers. Pricing of...
  18. makila

    cooling slots in aluminium problems

    I agree with the slitting saw, it is a bit more forgiving than small end mills and providing you are cutting straight lines, it can be quite neat. If you have only got a small mill cutting tool, then lots of shallow passes with the tool turning at high speed, and use WD 40 Steve
  19. makila

    Wasted spark ignitions

    Parksy, Wasted spark arrangements were common in many 4 cylinder motor cycles during the 70s-90s and probably still use this method. My motorcycle had 2 coils supplying the HT for 4 plugs where the wasted spark occurred at 360 crankshaft degrees with no issues at all. The arrangement was for...
  20. makila

    New capacitor install .?s

    Generally the three wire type capacitor connections for a capacitor start, capacitor run motor are: Small capacitance for starting and running Large capacitance for starting You will need to test which wire has more capacitance than the other to ensure the correct orientation but I have seen...
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