VDubber

Aircooled blogs, builds and banter...
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Somewhere to discuss restoration and customization. Share tips and tricks, videos and links to useful info for current a... Somewhere to discuss restoration and customization. Share tips and tricks, videos and links to useful info for current and future builds. More

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  • Mick
    Mick created a new discussion
    DIY dynamic balancer
    Posted on Monday, 24 April 2017
    Have long thought about building a dynamic balancer. Very useful for crankshafts and blower rotors. Easy enough to build a very simple balancer and nowadays not too much more difficult to build an accurate one. Electronic controllers are very accessi...
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    Balancing.xls (26kb)
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  • Mick
    Mick created a new discussion
    Twin plug
    Posted on Wednesday, 12 April 2017
    Lots of reasons for going to twin spark such as less timing, cooler more complete burn and a more detonation resistant engine. Here's some jigs for drilling for a second plug
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  • Made up a valve spring compressor out of stuff from the scrap pile today. It's basically a bit of 150mm x 5mm flat bar for the base, a couple of lengths of angle to support the pivot bar and a handle that slides on the pivot bar that in turn pushes an arm to release the valve. I found a suitably... Made up a valve spring compressor out of stuff from the scrap pile today. It's basically a bit of 150mm x 5mm flat bar for the base, a couple of lengths of angle to support the pivot bar and a handle that slides on the pivot bar that in turn pushes an arm to release the valve. I found a suitably sized washer to fit the valve spring retainers, it was deformed into a slight concave shape and so fits the retainer nicely without sliding off.

    I also added a couple of bits of angle to help hold the valves in place when operating it and a small bit of flat bar at the rear to locate the cylinder head against. I made the pivot bar removable by securing it with 'R' clips. This will allow me to remove the lever arm should I need to.

    It works really well, much easier to use than the regular clamp style compressor that I normally use. Well worth spending a couple of hours on.
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  • Mick
    Mick created a new discussion
    Roller lifters
    Posted on Friday, 31 March 2017
    Stock lifter bore = 19mm Harley roller diameter = 18.6mm The cam followers used in Sportster engines, K models, big twin side valve models, and the side-valve W model series were a slightly shorter version of the followers used in the larger mo...
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  • Mick
    Mick created a new discussion
    Beehive springs
    Posted on Thursday, 30 March 2017
    Some info on single beehive springs. The biggest benefit of a beehive spring is that you can use a retainer of a smaller diameter - less weight. A bugpack or berg retainer is roughly 21g... a retainer for the PSI spring is roughly 11g (the same as...
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  • Mick
    Mick uploaded a photo in the album DIY Tools
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  •   Mick commented on this post about 1 month ago
    Mick
    Mick uploaded 3 photos in the album DIY Tools
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  • Mick
    Mick created a new discussion
    Parkerising (chemical black coating)
    Posted on Sunday, 26 March 2017
    Cold parkerising kits - http://www.caswellplating.com/metal-finishing-solutions/black-oxide-kits/black-oxide-kit-1-25-gal.html Details Black Oxide Kit This new technique was developed by the commercial gun blue manufacturers as a more environm...
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  • Mick
    Mick created a new discussion
    Quick Reference Info
    Posted on Sunday, 26 March 2017
    Displacement chart for easy reference
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    940613.jpg (101kb)
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  • Mick
    Mick created a new discussion
    Basic head porting
    Posted on Saturday, 25 March 2017
    This is a reproduction of an article from the now defunct cal-look.com website. Preserved for future reference. Basic Head Porting By Thomas Simpson, aka. "Ohio Tom" Editor's note: No matter what type of engine you are building, weather it ...
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  • Mick
    Mick created a new discussion
    Slapper
    Posted on Wednesday, 22 March 2017
    If you are doing sheet metal work and haven't made yourself a slapper, this is a great tutorial on how to make and use one... And a video primer too... https://www.youtube.com/watch?v=LdLDOkEPFgA
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  • Wombatventures
    Wombatventures joined this group
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  • Narrowed bay beam how-to
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  • And another one...
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