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  1. Gordon

    V-TWIN---MAYBE V-4

    You can buy rebuild kits for the regulators for about $25/$30 US. The diaphragm gets brittle and will not work. Ask your supplier...
  2. Gordon

    Something to help us "non" machinists

    I frequently make a CAD drawing on a separate detail sheet showing the readings required on my DRO so that I am not trying to calculate things while machining. I do this for things like cutting the cooling fins on a cylinder as well as showing the centers where holes or mill cutters should be in...
  3. Gordon

    V-TWIN---MAYBE V-4

    Just try switching the two ignition boxes or perhaps just the coil. I have had good luck with COP (coil over plug) coils. You can buy eight of them for less than $70.
  4. Gordon

    Let's Talk Carburetors--

    Actually I have had better luck with building my own than the commercial ones. Easier to change jet size and venturi size. I have a couple around and play around with variations until I get what I want.
  5. Gordon

    V-TWIN---MAYBE V-4

    A set of eight for a Ford eBay US as low as $32 Set of four for Mazda eBay UK £14.95 Both sites also list them for 8 to 10 times that for one but there are several other options for Mini Cooper BMW Peugeot. These may not be the greatest quality but for this purpose they should be adequate.
  6. Gordon

    V-TWIN---MAYBE V-4

    I have been using the COP (coil over plug) coils as used on Ford and a few other cars. You can buy a set of 8 from eBay for $25/$30. Another option is to get them from the junk yard. They are small and seem to work just fine.
  7. Gordon

    V-TWIN---MAYBE V-4

    I don't know. Brian has the snowmobile coil that he used on another twin. Apparently the two cylinders are 40° out of sync so I am not sure how that would work out. I think that it would fire at TDC (0°) then 40° and then again at TDC
  8. Gordon

    V-TWIN---MAYBE V-4

    I built the Jerry Howell "V Twin" and this is what he said: This is a V-Twin engine that is machined entirely from bar stock. It has no prototype as it is entirely my own design. Being a single crank pin 90 degree engine, it is extremely smooth and vibration free. V type engines other than 90...
  9. Gordon

    V-TWIN---MAYBE V-4

    I am wondering about firing. It would seem like one cylinder would be in part of the stroke ,starting compression for instance while the other cylinder would be in another part of the cycle, finishing power for instance and the two cylinder are fighting each other. 90° means that they are on...
  10. Gordon

    V-TWIN---MAYBE V-4

    I am not sure about this design and I may be completely wrong. I was wondering if you could use your dual snowmobile coil but then I realized that the two cylinders are not at 90° to each other so they are not firing in a true four cycle sequence. Aren't the cylinders fighting each other for...
  11. Gordon

    V-TWIN---MAYBE V-4

    Maybe I am missing something here but why tilt the engine instead of just rotating the degree wheel by 25°?
  12. Gordon

    Electric car plant

    It is possible to be above average in relation to a larger group. Your family can all be above the average weigh of the average weight of your country.
  13. Gordon

    Engine sucks but will not blow

    I think that I have not been paying enough attention to the sides of the ring groove. I have been just taking a plunge cut with a cut off blade of the same width as the ring. If the ring was 3/32 wide I used at 3/32 cut off blade. I think that I will have to do do some work on a tool bit and...
  14. Gordon

    Engine sucks but will not blow

    From what you are saying here is that compression is determined by the lower (crankshaft end) so in my case the lower end is more important than the the other end since I have plenty of vacuum but low compression. I am going to try remaking the pistons and I will be more aware of the side...
  15. Gordon

    Camshaft design

    I did a little bit of looking at my book collection. Brian mentioned the Malcolm Stride book and I found that I also had that book. I also have a book by L C Mason "Model Four Cycle Gasoline Engines". The explanation in the Mason book looks to be pretty good so this afternoon is going to be...
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