Canadianhorsepower's build of Rupnow engine

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canadianhorsepower

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ok here we are this was first called " Luc's build of Rupnow engine"
if you want to see the previous post

these pictures covers separating the caps from the plate machining
the bearing cages and marking the head and the machining of it
enjoy the pictures and if any question please ask

next thing piston ,rod crank and cylinder

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canadianhorsepower

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here is another series of photos I did some of my taste in rounding of the main cap and counter siking the head
now that these are ok I'll put them in the tumbler with ceramic for one
to cut the edge, then I'll put them in the other tumbler with peanut shell to
polish them a bit more

I'm still using 2 colors to mark
I'm happy with the accuracy of my DRO set up so far:fan:

enjoy

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canadianhorsepower

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I spent a few minutes in the shop tonight
before changing mu set up I decide to start
on the exhaust shaft rod
. Went brass for colour and friction point
machine all to specs tomorrow the bearing pin holder
probably on my Taig lathe
cheers
Luc

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canadianhorsepower

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Hey found a few minute again to mill the pocket
in my cylinder head. 3/4 end mill offset it to get 1.125 and rotate
on the rotary table. love the finish.
the spark plug hole is not done yet, not sure if I'm going to purchase
a plug or build my own

enjoy

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stevehuckss396

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Looks good so far. If you have the time and material, make your plug. It will come in handy some day to know how. If you dont have time, I can give at least 3 places to get plugs right down to #8-40 thread.
 

canadianhorsepower

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Looks good so far. If you have the time and material, make your plug. It will come in handy some day to know how. If you dont have time, I can give at least 3 places to get plugs right down to #8-40 thread.
Hi Steeve,
I'm pretty happy with the build so far I have coriander,
1/4 octagonal steel rod and 63 thou ss for the electrode. I did one before
and it good. I was questioning myself to build one or use Brian's suggestion
in case we would have tuning issue that we would be on the same page.

I would gladly take the reference for future project

How is the blower doing?
 

stevehuckss396

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Hi Steeve,
I'm pretty happy with the build so far I have coriander,
1/4 octagonal steel rod and 63 thou ss for the electrode. I did one before
and it good. I was questioning myself to build one or use Brian's suggestion
in case we would have tuning issue that we would be on the same page.

I would gladly take the reference for future project

How is the blower doing?


Blower is good! Working on the linkage now. I made a few pieces. I have a show this weekend at the Henry Ford Museum so I have been getting ready for that. Ran the engines Monday and both ran real good. Will spend tomorrow cleaning the engines and should be good to go.

Good luck with the plug. I use music wire for my electrodes and brass for the cap and they solder together with a soldering iron. Just make sure you clean the heck out of everything before trying to solder. You could buy the first one and then make the replacements. May help at start up. There are so many thing that can stop you from running on a brand new engine so a purchased plug might eliminate one of them. After it's running well, make a few plugs, pop them in and see how they work.
 

canadianhorsepower

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I have a show this weekend at the Henry Ford Museum so I have been getting ready for that.
Chevy in a Ford museum they must have give you a ton of money:D

sorry gbritnel had to say itRof}Rof}Rof}
 

Path

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Luc,

Great pictures ... thanks for posting them. :):)

Looks like you drilled a single hole for the bearings ... not using the bearing lip?

Also I noticed that the base is longer, thinking about doing the same. Did
you do that for a particular reason or just looks better? I like the idea for added weight and better balance.

Thanks for sharing,

Pat H
 
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Canman

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Looking great pal. Parts look fantastic. Coming along nicely.
 

canadianhorsepower

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Looks like you drilled a single hole for the bearings ... not using the bearing lip?

Also I noticed that the base is longer, thinking about doing the same. Did
you do that for a particular reason or just looks better?
thanks for the comments:cool:

I'm using the lip, the picture shows the finish after I ran the end mill.
after I bolted the plate back together but backward and use the boring head for the final path on one picture on the blu side you can't see the outer race of the bearing
As for the plate beeing longer, yes and it's because of rounding of the corner, I'm going to use a concave round mill and do the outside quith it
and the plate is going to be bolted with bolt from underneath


cheers
 

canadianhorsepower

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hi again a bit more time in the machine shop today
here are some picture of all the steps for the piston
and the next step
thanks Brian for the cast, Ill take a few hours before starting the rod
the place need cleaning up a bit
and*beer**beer**beer*
enjoy

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jwcnc1911

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That work is looking top notch Luc! I do enjoy seeing it!

What is that big allen key or hex in the drilling setup for?
 

canadianhorsepower

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That work is looking top notch Luc! I do enjoy seeing it!

What is that big allen key or hex in the drilling setup for?
thanks for the comments , because I had "or decided to" change milling
and wanted to have my wrist pin dead on . I did mill a flat piece of material
to the slot size after I used a angle gauge making sure it was all 90 degree
being a square part it's easier with a square part
oops I forgot I was using a machinist's jack to support the

If I didn't make myself clear I'll be more then happy to supply more pics
cheers to support the work
 

Swifty

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Moving along nicely Luc, I know what you mean about having to clean up, aluminium sure seems to make a mess, have to clean up regularly and try to avoid tramping chips into the house.

Paul.
 

Brian Rupnow

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Luc--I always finish the cylinder first, then make the piston afterwards, to fit the reamed bore. It seems you are approaching this differently, but I am sure you know what you are doing. You seem to be an accomplished machinist. Perhaps I will learn something new here.---Brian
 

canadianhorsepower

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Moving along nicely Luc, I know what you mean about having to clean up, aluminium sure seems to make a mess, have to clean up regularly and try to avoid tramping chips into the house.

Paul.
few!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!:fan:
now I have to give some excuse to mine. I was under the impression
she was the only one freeking out:hDe:
I guess this is what living with a good wife is all aboutwoohoo1

I love her;D;D
 

canadianhorsepower

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Luc--I always finish the cylinder first, then make the piston afterwards, to fit the reamed bore. It seems you are approaching this differently, but I am sure you know what you are doing. You seem to be an accomplished machinist. Perhaps I will learn something new here.---Brian

hey Brian all that matter's is how the cylinder and piston match.
I'm really enjoying building your engineThm:
 

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