3 cyl Pip engine

This topic has 166 replies, 11 voices, and was last updated 29 March 2019 at 20:15 by Roy Garden.

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24 January 2019 at 19:48 #392813
David K
Participant
@davidk77137
The pipes are then silver soldered into the mounts.
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24 January 2019 at 19:49 #392814
David K
Participant
@davidk77137
A selection of finished manifolds
24 January 2019 at 19:50 #392815
David K
Participant
@davidk77137
A selection of finished manifolds
24 January 2019 at 19:53 #392817
David K
Participant
@davidk77137
fitted manifolds
24 January 2019 at 19:54 #392818
David K
Participant
@davidk77137
25 January 2019 at 15:22 #392958
David K
Participant
@davidk77137
Time to make a stand for the engine.

I wanted to make a carrier similar to the one used on full size engines so I

thought I would put my new silver solder skills to use and solder some stainless

pieces together.

I made a simple jig to hold the pieces while I soldered.
25 January 2019 at 15:23 #392959
David K
Participant
@davidk77137
After soldering the cradle it was put into a Citric acid bath for a few minutes then polished
25 January 2019 at 15:25 #392960
David K
Participant
@davidk77137
Next I cut a couple of pieces of hard wood from some old door frame I saved.

The first piece I cleaned up into a rectangle and routed around the top , the second

piece I drew a rough outline of the shape I wanted and attacked it with a flap disc

on my grinder. It carved up much easier than I thought and just needed a quick sand

into the final shape before I varnish.
25 January 2019 at 15:26 #392961
David K
Participant
@davidk77137
Quick test of the cradle to the rear of the engine.
25 January 2019 at 15:30 #392963
David K
Participant
@davidk77137
I have given the stand a sanding and varnish , then mounted the engine.

You may notice the manifolds are now silver ,had some silvering powder

left over from a clock build so decided to use some on the copper manifolds.
25 January 2019 at 15:31 #392964
David K
Participant
@davidk77137
25 January 2019 at 15:33 #392965
David K
Participant
@davidk77137
Got a small propeller of EBay so had to make a prop washer for the crankshaft end.

Turned the profile from some alloy round bar
25 January 2019 at 15:34 #392966
David K
Participant
@davidk77137
Using a piece of tool steel ground with a chisel edge I cut the slot for the woodruff key
25 January 2019 at 15:35 #392967
David K
Participant
@davidk77137
So the engine is now complete , unfortunately the carb I bought is not suitable so I need

to find a replacement. The carb I bought is a 'slide' carb and will not fit properly between

the cylinders so I need to buy a rotary version
25 January 2019 at 15:37 #392968
David K
Participant
@davidk77137
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Edited By David Kenyon 2 on 25/01/2019 15:41:39
1 February 2019 at 18:47 #394224
ChrisH
Participant
@chrish
Excellent build log David, have just read all the way through with great interest and learned a lot from the work holding set-ups and the design, especially of the epicyclic geared cam drive and internal fan to stir the air in the crankcase.

Many of the work holding set-up were especially interesting, this being an area where I have little experience – that proved invaluable.

The standard of machining is excellent too, resulting in a lovely engine to be very justifiably proud of.

Well done that man,

Chris
29 March 2019 at 20:15 #402736
Roy Garden
Participant
@roygarden83469
That was fantastic, have read from start to finish.
Very impressed!
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