3cc Diesel - My first ICE

[Philjoe5]

Good work Bob. Thanks for the pictures. Do you actually tap those small holes with the tap and tap wrench free standing like the picture shows?

Cheers,
Phil

 

[Maryak]

W/E,

Thanks for your continued input, yes I used what would be the equivalent of Tap Magic. For very hard materials I use a brew called, "Angels Breath" its a mixture of 2 parts olive oil to 1 part kero or mineral turps and it works a treat. (You guys working with titanium).

Phil,

Yes I tapped them free standing using a small square as a visual guide. With the head to guide them I'm hoping they will line up OK : I have tried some of the suggestions re tapping guides with little success, I feel you place too much reliance on them and they, for the most part, can be just as easily misaligned as the tap itself. (Only my opinion and not set in concrete ;D)

Best Regards
Bob

 

[Maryak]

Hi Guys,

Well I managed to get a good run today

I must say that the time and effort put into making the drilling jig for the crankcase, cylinder and head has repaid itself with very satisfying results. The three items mentioned actually line up with each other.

On with the progress report.

Opening out the holes in the drilling jig to 6BA clearance.

Drilling the holes in the cylinder base.

A Test fit of the cylinder onto the crankcase.

Aluminium being readied to make the head by providing a chucking spigot.

Testing the cylinder fit in the head.

Drilling the holes in the head.

Another test assembly :

Preparing the head for tapering.

Tapering the head using the compund slide.

The head after tapering and cutting the cooling fins.

Reaming the top of the head to take a bronze bush in which will be fitted the compression screw.

Completed head, cylinder and crankcase assembly.

If I were to make another or similar engine, I would leave the lapping of the cylinder and pistons until now

Ah well you live and you learn.

 

[NickG]

Definitely looking like an engine now! Getting quite excited, I think I just heard a little put put!

 

[Maryak]

Maybe you did but if you were close by it would be louder due to my nervous peristaltic action filtering down to the nether regions.

Best Regards
Bob

 

[CrewCab]

Great work Bob, it's really coming together now. :bow:

CC

 

[Maryak]

Thanks CC,

All the support etc is really great

Best Regards
Bob

 

[Brian Rupnow]

Fabulous work!!!!----Brian

 

[Philjoe5]

A definite engine is emerging from all that bar stock :bow: :bow:. You've documented some really nice machining techniques

Cheers,
Phil

 

[wareagle]

Bob,

You definately have it goin' on! :bow: That little engine is looking fantastic. You are well on your way to a great little engine.

 

[dsquire]

Bob :bow:

Looks like your going to have a great little engine. I am enjoying watching the progress. Thanks for all the tips.

Cheers

Don

 

[Maryak]

Brian, Phil, W/E and Don,

Thanks guys, you have no idea how much your questions, suggestions, brickbats and bouquets have contributed to this project.

Best Regards
Bob

 

[Brass_Machine]

Hey Bob

That is looking good! I didn't read the whole thread, whatcha gonna put it in?

Eric

 

[gjn]

Bob

Next time the aircraft museum at the port has an engine run day take yours along as well so we can see it running!

Rgds - Gavin

 

[Maryak]

Eric,

Thanks for your comments. The short answer is I don't know ??? ??? ???

My Grandson is almost 16 and I thought about a model aircraft that maybe we could build together. Ran it past his mum, (my one and only beautiful daughter, actually she looks very similar to Nicole Kidman). She nearly freaked and I got dressed down. The lad is Dyslexic and one of the problems is he has no concept of personal safety. A propeller at 5000rpm was definitely out.

Any suggestions would be very welcome.

Best Regards
Bob

 

[Maryak]

I guess you would call today

Tanks for the Memory. ;D

Yep tanks tanks and more bloody tanks.

Did manage to get a little shopping done late in the day for HSS, a 2mt dead centre and a pin chuck for the No. 70 drill.

Hope tomorrow will see a little progress.

Regards
Bob

 

[Maryak]

Gavin,

I have a mate who volunteers at the Aviation Museum. Also was very glad when you took the Nomad wings back out of my store when I worked at the Maritime Museum. ;D ;D

Best Regards
Bob

 

[wareagle]

Eric,

Thanks for your comments. The short answer is I don't know ??? ??? ???

My Grandson is almost 16 and I thought about a model aircraft that maybe we could build together. Ran it past his mum, (my one and only beautiful daughter, actually she looks very similar to Nicole Kidman). She nearly freaked and I got dressed down. The lad is Dyslexic and one of the problems is he has no concept of personal safety. A propeller at 5000rpm was definitely out.

Any suggestions would be very welcome.

Best Regards
Bob

Bob, just a thought... The buddy that started the second Crusader along with mine is planning of building a remote control air boat and using this engine for that. The prop will have a full cage built around it to protect it as well as other objects from being chopped up. His idea is to build it in such fashion that it can go over land as well as water. He has a three year old boy that will likely be involved in the running of it as well, so there is the same safety concerns as your facing. No drawings or plans exist for the boat at this time, its just at the idea stage.

 

[Brass_Machine]

...

Any suggestions would be very welcome.

Best Regards
Bob

WE's suggestion is good. Can ya stick it in a RC boat??

Eric

 

[Maryak]

W/E,

What a great idea, a caged prop and a boat, at least I've built a couple of sailing dinghies so thus may be just the ticket :bow: :bow:

Looking forward to hearing more, assisting if possible etc. etc. :big: :big: :big:

Best Regards
Bob