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absmiami

some old racing engines

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I managed to drill some .013 holes into the top of the gear train cover and placed two .013 pins and pinned the fuel block assembly in place. This allowed me to epoxy the bracket and make the adjustments needed to center the cross bar that holds the linkage levers - 2 in the center and one each side for the linkage to the injectors

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Painted the fuel blocks with some Polly S blue anodized paint and then some flat black for the frame These paints dry quickly  - so just a short time later I epoxied the nickel bracket  -  the location is tricky because of the stagger in the Cyl heads. But I think l got a good location. Now I can make the  left and right hand brackets ...

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Right cyl head post 

main thing is to align the linkage rod ... then the left hand cyl head post ...  

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Once the linkage bar is on I took a shot at the leaver or crank or whatever it’s called. There are

- per the drawings - 2 in the center of the cross bar - made fr .040 brass tube soldered onto .024 tube and then soldered to a small piece of .010 nickel strip - the tip of the strip will slide into a short length of .024 alu tube...

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Hey  simon pagenaud wins the Indy 500 again !!!

Oops ... 

header tabs galore ...

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2 of the The inspection plates on the valve train cover Are safety wired. So I have removed the printed bolts and drilled some .012 holes for bolts. Gonna see if I can add the safety wires  Would never bother with this except that this is going to be a display engine. 

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Now back to The fuel distribution links ...I’ve made some links from nickel silver and I soldered up some .047 and .024 Brass tube to make the knuckle of the first of two central links ... And there is a .022 cap screw at the leading edge of the knuckle  fr RB Motion painted black. That’s the screw that secures this part to the cross rod. ... on the real engine ...
 

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In case anyone was curious about the size difference in scale. 1/25th vs 1/24th. It is visible ....

and the 25th scale engine is a little larger than the Gurney Eagle kit DOHC engine although both are supposed to be 25th scale ... I do not think that the Mad printed 25th sc engine will fit into the Gurney kit without some major mods. But I do suspect that the exhaust headers could be modified to use with the Gurney kit DOHC ... and that would be a big improvement. 

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Is anyone else following the restoration of the Gurney Lotus 29 at the Indy Museum w/site ??  Great stuff ...

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The challenges of scale have caught up with me.  I made some nice nickel elbow fuel fittings. Real close to scale - but I couldn’t figure out how to make a good attachment to the .024 fuel lines - so I scrapped the nickel fittings- they will be useful some day - and made some plastic fittings that I can slip the ends of the fuel line in with some epoxy. Than painted them with some floquil gun metal. So they look okay - but they over-scale.  Oh well ...  also attached the nickel links.... with some cap screws fr RB motion ...

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Guess it was right not to print that stuff, I would have never got to see that great work of yours.

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well - what if you shrunk yourself ??

does your printer  have that function ??

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Painting.  First Alcad’s magnesium for the block.  Then floquil steam power black brushed on the valve covers and the gear assembly cover and Tamiya fl white for the exhaust pipes .  The silver hi-lites on the valve covers and most of the bolts were picked out with a marker .  

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On 5/29/2020 at 4:27 PM, absmiami said:

.........

Is that Parafilm you are using???  I'm all out of it....& have not been able to find it anywhere.

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Fuel inj trumpets are painted with a nice anodized blue by Polly S . Using my old double action Paasche  airbrush after managing to clog and then ruin the paint cup in my go-to single action airbrush. I’ve spent so much time messing around with these engines that I almost forgot how to paint things ...

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1 minute ago, Khils said:

Is that Parafilm you are using???  I'm all out of it....& have not been able to find it anywhere.

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I usually get mine fr Micro-Mark  are they out?  Toilet paper. Para-film. What’s next ??

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Good call!    .....have not checked with them.  T Y!  I'll check there.

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5 minutes ago, absmiami said:

Micro-Mark

T Y!! They stock it...ordered  2 in case of another pandemic!!

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Lookin' good !

 

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Magnesium for the Delage engine block?  Maybe just a shade darker? Or what ?

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8 hours ago, absmiami said:

Magnesium for the Delage engine block?  Maybe just a shade darker? Or what ?

Don't know, will check.

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Andrew that engine is absolutely sensational!👌👍

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On 6/8/2020 at 8:01 AM, Pico said:

Don't know, will check.

Did mine in magnesium, probably a decent reason for that color.

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