Whittle V8 WIP-2

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That's a wonderful looking engine there. The Whittle is such an elegent design and the
attention to detail and fine surface finish on your engine is outstanding. Can you clue us in to
your procedure for the rocker arms? Looking forward to more on this engine.

Regards,
Mike
 
Hi Rob,

Very nice your job!

Some questions...

How do you make the glow plugs ?

What is the material used to make the filament of the glow plug ?

Is easy to find?

Thank you,

Alexandre
 
Hi Blighty,
Good luck with your build, it's a great engine to build - not that I've had much experience as this is only my second build.

Hi Mike,
As for the rocker arms, it's all in the CNC and some very small cutters. I have a small tabletop CNC mill. It's obviously possible to make it without CNC but I'm no machinist.

Hi Alexandre,
The glow plugs are made from existing plugs (Enya 3) turned down with new tops.

Thanks for the support and comments everyone.

Rob
 
Rob.Barrett said:
...The glow plugs are made from existing plugs (Enya 3) turned down with new tops.
Click to expand...

Can you elaborate on the machining steps & add-on parts involved?
Ex - do you first 'hold' the stock glow plug in a hex collet or something, reduce & re-thread? Then use that new thread in a jig or something to turn down the top side etc? Im guessing the original hex size is also reduced?

Also, are the little nuts on the top to capture the ignition power wire?

That smaller size looks so much more scale for engines that utilize glow, and especially for the engine you are working on. Very nice!
 
Wow! The Whittle looks great.

The glow plug modifications are part of the Whittle drawings, but Rob's hex on the body is excellent. The Enya plugs already have a threaded post in the top. I wonder why Whittle bothered with a longer post at all? Why not just a short spacer and nut on the existing post? I think it would look a bit more fitting for such a small engine. If I ever get to building one, I'll have to remember that......
 
Hi Rob

You are certainly making good progress with your build, I'm still on
the third crankshaft, haven't been in the workshop a lot for the summer months,
now the darker evenings are here will be going in to continue the work, a lot
to do to catch you up !!!!!!

Rgds, Marcus
 
Hi Marcus,

Good to hear you're back in the workshop. Good luck with the crank, hope you can do better than my four attempts.

Regards,
Rob
 
Hi Rob
Just caught up with your excellent build, and it is a beauty with an outstanding finish. I did not realise just how small it was until I saw the AA battery in shot. Absolutely stunning, and doubly so considering it’s only your second build. I will certainly be glued to this one.

Cheers Les :bow:
 
Just finished the valve gear.

Regards,
Rob

004.jpg


006.jpg
 
A very good looking engine, I am amazed at the amount of careful detail that went in to it.
 
Hi Rob

Your engine certainly looks the business, have you checked out valve timing and firing order yet ?

Rgds, Marcus
 
Hi Marcus,

I'm just building a support frame to hold the engine, I should then be in a position to squirt a little fuel down the inlet manifolds, wire up the glow plugs and give it a spin to see if it makes the right noises. So hopefully it's correct, it looks right. I'll post some more picture soon.
How far have you got with your engine?

Regards,
Rob
 
Hi Rob

Should be back to the workshop in the next few days, crankshaft centre journals completed and with packing pieces secured, next step setup on the mill for the offsets, hoping for better results this time !!!

Rgds, Marcus
 
Hi Rob,
What a beautiful engine you have built. I had the pleasure of meeting Mr. Whittle at the NAMES show many years back and saw some of his work. He would be extremely proud to see his design carried on.
gbritnell
 
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