my first I.C.: a V10

[jimmybondi]

Hi,

in Q & A i've published som photos of my actual project
http://www.homemodelenginemachinist.com/index.php?topic=11906.0

but its a project in progress and should localized here

the motor (cylinder) block - made of a block of alu 100 x 100 x 200:

roughing:

(sorry for bad quality of some pictures - i've made them with cellular phone cam)

finished outer shade:

next i've made the oil pan - i don't have a picture of it standalone atm - but here fixed on the block:

(down you'll find a picture of inside ...)

now a tricky job:
the hole for the crankshaft - diameter 42mm - length 194mm
done on my minilathe:

whats next ?

oh yeah - 10 cyl holes:

inside:

(at this moment 5 days are passed since starting this engine)

Frank

 

[jimmybondi]

then i made a few days pause because of christmas and familiy and the holy **** ...

the last 3 days of 2010 i spent on several parts which need some more attention:

cyl bushes - made of 9SMn28k - called "Automatenstahl"
it has some lead in its alloy - thats not bad for the piston running area

outer diameter 28mm
inner 24mm

then i pressed them into the block an finished the process on the bore with a "reamer"

also the heads i've machined last days of last year:
not finished at all - but most chips are gone:

small group photo:

take a look into breath ways

and last parts of last year are the pistons - here is one:

more comes next ...

 

[jimmybondi]

2011 started with pston rings - made of cast:

the piston isn't finished here at all - but see later this month (or year )

now a job that is more the more i build cylinders:
cams - on this machine 20 by number :-(

20 on a rod:

material: C45 - 1.0503
its able to be hardened up to 60HRC - enough for cams i think

and the crank shaft is finished too:

here some parts to explain how its build:

to be continued ...

 

[peatoluser]

Frank,

Thats some impressive maching in a short space of time.

When you line bore the hole for the crankshaft how do you adjust the tool to cut the correct diameter?

yours

Peter

 

[jimmybondi]

returned

now follows a terrible job:

the bearinghousings for the cam :-(

48 minimized parts - only to carry a small bearing (bearing type HK 0408)

that evening i felt every bone in my hands from deburring :-(

but in my head i stay on the next job - a job i'ld like

first personalized parts of the engine

crankcases

first a front view at actual build status:

and that noone should have to ask: it's a V10 DOHC:

and noone should have to ask who's the builder :

now i've to finish the timelapse collage:
thats the actual status

i think i will ask several thinks about I.C. within the next weeks ...

Frank

 

[jimmybondi]

Hi Peter,

When you line bore the hole for the crankshaft how do you adjust the tool to cut the correct diameter?

hard to explain - but give a try
(tomorow i can take a photo)

the bore rod (or how its called) has got a flattening near the hole for the cutter.
On this flat area i fixed a plate with a extra fine thread (M4 x 0,25) to pull out the cutter.
the last 5 machining passes i pull out the cutter 0,1mm - to get a acceptable surface and a hole with close tolerance

Frank

 

[peatoluser]

Hi Frank,

thanks for the quick reply.

I think I understand your method. Did not realise M4 was made with such a fine pitch. ( I'm still stuck in the past using BSW & BA ) Must give very fine tool control.

Peter

 

[jimmybondi]

Did not realise M4 was made with such a fine pitch.

yes - or better: no

fine M4 thread: smalest pitch was 0,35 - but who cares what i'm building ?
i've made a tap of silversteel to bore a M4x0,25 hole and made a small screw too

(my bonelle has a thread M48 x 0,5 for the dust covers - never heard before about such a thread )

Frank

 

[T70MkIII]

Looking great so far, Frank. How long is the bed on your mini lathe?

 

[jimmybondi]

Looking great so far, Frank. How long is the bed on your mini lathe?

between centers 450mm
after some modifications are 550mm possible -but:

than i can't make really chips because its very instable

Frank

 

[agmachado]

Jimmy,

Very cool your project !!!

Good job!

Alexandre

 

[jimmybondi]

Hi

today i finished the crankshaft
and the spring plates for the valves

Frank


PS:
why the pictures are not visible ?
i uploaded them on the gallery and inserted as
[ img ]
http://homemodelenginemachinist.com/gallery/displayimage.php?pid=132&fullsize=1
[ / img ]

PSS:
found a solution - but terrible laborious :-(

 

[Maryak]

Frank,

I've said it before but a repeat is in order - you do beautiful work. :bow:

Best Regards
Bob

 

[agmachado]

Frank,

We will have news soon?

Post more news, please... this project is very cool !!!

th_wwp

Best Wishes,

Alexandre

 

[jimmybondi]

Hi Alexandre,

believe it or not :

there are days where i don't made new parts .-(

today i hardened the cams, made some pre-work for a tube bender
calculated a little bit, arranged some parts like sparks and a carburetor to take dimensions ...
made a piece of CF53 (1.1213) soft to build a tap

ahh - very important:
i made a tool for milling the time wheels !
but while i made them (i made every time 3 tools when i need one !) i thought about another profile (and will use it ...)

here is a lot to do in the peripherie :-(

i will show when there iss a new thing to see.
but from now on there is low output by a lot of work ...

be sure:
it will be continued

this week i will finish the tube bender - nothing to show here in this thread ...
also tools for sync belts ... (a lot of work and nothing to see .-( )
and a lot of things that i try to do in a way and learn: this way iss wrong :-(

But: it makes me a little bit proud that you (and others) ask for the progress of this project ...
i love this american forum for its participation (their users !!) - its very cool and smooth and ... (words don't come easy 2 me)

Frank

BTW:
here shows the clock half past 2 in the night - you see:
i can only write in the night - when working on my machines is impossible

(please don't take every word seriously that i wrote down here - i like a little bit humor )

 

[agmachado]

Frank,

No problem, I understand absolutely !

Since you continue to share your progress for us...

I hope to get a lathe and a mill to start building something soon.

I have some drawings of a V12 for the airplane model (see Mr Weitzel in http://www.wawu.eu).

I also like the work of the Germans... the VTH website (http://www.vth.de) is very cool... I would want to understand better your language... However, the Google Translator helps me a bit... better, helps me a lot!

Best Regards,

Alexandre

 

[ozzie46]

Wonderful project. :bow: :bow:

Pictures of the tool making would be good too. ;D

Ron

 

[LongRat]

Frank, this is a fantastic build. Please, post some pictures of your tools - I would like to see the tube bender. Love your built-up crank too. Due you have the book by Schillings?

 

[steamer]

I love that crank......alot

I'm taking some serious notes here


Dave

 

[jimmybondi]

Hi,

the last days i "learned" to machine a wheel for the timing belt
(20 teeth HDT3m - width 16mm for 2 belt of 6mm width)

and made a flywheel
(a clutch will be added too so far ...)

Yesterday i parsed a comercial carburetor of a .60 engine and made a downsize and made it a little bit smarter
(maybe i will put 1 of them on my engine)

you may compare them here:

the bottle cap of my native beer shows the size of both
and after this work (measure,sketch,build) i take it as my personal reward


Frank