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Member postings for David K

Here is a list of all the postings David K has made in our forums. Click on a thread name to jump to the thread.

Thread: D H Gipsy mk1
01/07/2020 20:47:15

Time to make a stand , i was given a chunk of alloy a while back , apparently it was used for securing power lines and i have been wandering what i could use it for.

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So i cut it in half with a slitting saw

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Then milled away to form the stand sides

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A couple of cross braces and engine mounts and i now have a stand . A bit unconventional but i like it.

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01/07/2020 20:38:06

End case / oil pump

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Timing camshaft

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01/07/2020 20:36:06

A few pictures of building the engine up

Camshaft

img_2916 (medium).jpg

Crankshaft

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Rods

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Barrels

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Heads

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22/06/2020 19:30:06
Posted by Russ B on 22/06/2020 18:51:10:

Never made spark plugs, but doesn’t Corian start melting over 100c?

 

No idea but researching on the internet it would seem it has been use by others ok.

If they fail i will get my wallet out and buy some.

 

Edited By David K on 22/06/2020 19:30:39

22/06/2020 16:28:53

While i was in the grove i made a couple of even smaller plugs into earings for the Gf.

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22/06/2020 16:23:44

The Corian being turned to fit the body and drilled through 1mm for the electrode

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The insulator is loctite'd in , i also left a slight 'lip' on the top of the body and this was pressed over slightly holding in the insulator. I soldered some brass thread to the tungsten ready for being loctite'd in place

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Finished plug

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22/06/2020 16:17:30

Spark plugs , i can buy 1/4 32 plugs but they are quite expensive so i had a go at making my own.

Started with some steel hex bar , Corian offcut for the insulator and some 1mm tungsten rod for the electrode.

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I first turned the body leaving a little extra for the electrode, i would have threaded them but i realised i did not have a 1/4 32 die so i ordered one

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I milled around the electrode and then undercut with a small diamond disc

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I then used a flat bottom cutter to drill through to the undercut and form the electrode. The body was then counterbored using a drill and leaving a taper for the insulator to seal against

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22/06/2020 15:59:12

Casting for the carburettor was a little rough looking

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Tried to tidy it up as much i could while opening up the float chamber and bore

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The float chamber is a dummy so the fuel runs directly to the jet and metered by a needle.

I made these from stainless and also a brass float chamber lid and butterfly.

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Carb and manifold

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22/06/2020 15:53:05

While i was soldering the oil lines i cut some brass tube and made the oil filler and

breather pipe.

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img_3076 (medium).jpg

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19/06/2020 19:15:17

I milled the cooling fins on the sump underside

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then drilled through for the sump plate

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The sump plate and oil union made from stainless

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These are the parts to be fitted to the sump

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The oil feed from the pump runs through the sump before running up to the main bearing

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18/06/2020 13:07:42

Hi it is routed as the plans described , I presume this is how they route on a full size engine.

Also i think the angle of the picture makes it look a little more untidy.

17/06/2020 20:22:34

Made some union bolts

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Milling the hex

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A quick polish

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Fitted to the engine

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17/06/2020 20:22:31

Made some union bolts

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Milling the hex

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A quick polish

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Fitted to the engine

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17/06/2020 20:19:13

Turned some brass parts to make the oil line unions

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Silver soldered the parts

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Made a jig to join the unions

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Some extra pipe work

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17/06/2020 20:11:53

Tapping for the inlet/outlet unions

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The end case and parts ready for trial fit

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17/06/2020 20:07:58

Started to mill out the end casing

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Boring the oil pump

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Silver soldered the oil pump gear to the drive shaft

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Thread: Another Gipsy mk1 question
16/04/2020 11:38:44

Thanks Gordon, I needed a confirmation .

16/04/2020 09:39:52

Hi, can anybody confirm that the engine runs clockwise viewed from the front.

The plans No1 sheet parts list , states the propeller runs Anti clockwise viewed from front but this would mean the oil pump would run in reverse .

Just looked at the You tube vid of one running at Old Warden and that is definitely running clockwise from the front.

Thread: Silver soldering zinc plated steel
21/03/2020 22:20:59

Cup Alloys , sorry to butt in on this thread but when I click the link for your

HT5 Kit all I get is a Internal Server Error.

Thread: Silver solder question
18/03/2020 13:31:36

Thanks Jason .

Cup Alloys , had an interesting read on your site and could do with some silver solder.

Would the low temp 455 be ok for this job , thanks

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