Another PeeWee

[e.picler]

Hi Cogsy! Yes, I'm going a lot faster than the previous engine. The Tiny in Line 4 had very small parts

Thank you Neil, I'm really appreciating to build the PeeWee it is a great project.

Edi

 

[e.picler]

Thank you Steve and Neil!
Steve I'm being able to work a couple of hours every day and some full weekend. Thanks for your help on this project.

My last work of the year on the PeeWee.
I have finished the intake manifold. I copied Michael process, was really strait forward.
It was not difficult to machine but, was really a work of patience!

I started machining 45° on both end and side to the largest lenght

Removing the material that will form the bolting flange

Moved to a vise with angle adjusting feature and set it to 45° to form the flange

More is coming on the intake

Edi

 

[e.picler]

Continuing the Intake Manifold

Removing thr tips on the flange

Getting the center of runner hole for the holding holes

That was the last work of the year!!
I wish to all here, a very happy New Year.

Edi

 

[e.picler]

Hello People!

It has already passed several months since my last post on the PeeWe progress. Almost half year. The available time is short.

Here is some info. about the progress.


The crankshaft

Blank ready for the lathe operation

Roughing on the milling machine

Ready for the main bearing. To avoid warping, I used a bolt and nut to fill the offset space

Now is the turn of the ends. I used the lathe fixed steady as much as possible

More to come.

Edi

 

[e.picler]

Some more details of the Crankshaft on the lathe.

Turning the ends

Machining the counter-weights

Checking out how it fits on the block

Before turning out the ends, what would cause to get rid of the center holes, I grinded the jornal to the final diameters

Back to the lathe for a skin pass on the FlyWheel for perfct balance

So this finish the hard part of the crankshaft.
Still needs to grind the ends.

Thanks,

Edi

 

[e.picler]

And here is the "All Powered Crankshaft"

 

[e.picler]

The Lifter Bushings and Throtle rod

With the PCV valve

Preparing the blank for the Rocker Arm

Next was the connecting rods

Edi

 

[e.picler]

Preparing the blank for the connecting rods.
This is the bottom portion of the connecting rod. I bored all the bolt holes including the small lubrication ones

Than I bolted the lower portion to the upper one.
Ready for the profile

Finished connecting rods. I made a program on the SprutCam

The throttle lever and bracket

More to come on the bearing bushings

TKS,

Edi

 

[e.picler]

Hi to all!
As I do not like the process of soldering two halves of bronze for the bushings, I turn two complete bushings than machine out to the midle of the diameter so, we have two perfect halves

Machining out to the midle of the diameter
View attachment 109645

I made a kind of collet to machine the inside diameter

They come out perfectlly

Fitting test was perfect

Running freely and no play

The lifters made out of 12L14 steel

Edi

 

[Brian Rupnow]

Very nice work. Lovely engine.---Brian

 

[stevehuckss396]

Nice Job Edi! Put two bearings on the rear of the crankshaft. Spot one flush with the outside of the block and the other on the inside of the block. Make them as far apart as you can get them. That will be a great support for the flywheel encase there are any issues with the flyslug being out of balance a little. Little sucker is heavy.

 

[e.picler]

Hi to all!
Thanks Brian.
Steve, yes I added one more bearing. I had seen your recommendation in another thread and ordered one extra bearing for my PeeWee.

With the pistons and connecting rod installed

Everything was running smoothly than, I moved the block to the lathe for breaking in. I filled with a little excess of oil to perform the breaking in. Now I will remove the oil, Clean everything and fill with the right level of oil and run a few more minutes. I also tested the cameshaft. It was running OK and moving the lifters freely

I think that in one more month I will be able to make the first start.

Tks,

Edi

 

[stevehuckss396]

Looks like most of the hard stuff is done. Wont be long now.

 

[e.picler]

Here are some more pictures of the progress. It is not in sequence of construction.

Turned the valves

Grinding the valve stem using a adapted manual grinding o the lathe tool post

Cutting off the the rings. I used a 1mm wide cut off tool

Test of the ring on the piston groove

I separated the rings using a cut off plier used on electronic shops

I have used Bob's method to provide the spring effect on the rings.

Tks,

Edi

 

[johnmcc69]

Everything is looking great Edi!

John

 

[e.picler]

For the Liners lapping operation, I used a brass lapping bar

I have used a diamond paste for the final finishing. The inner surface come out very smooth

The Pistons

Milling the pocket for the connecting rod

In order to assure the hight from pin center line to the top of the piston, I used a long pin with the same size of the hole as a stopper

Edi

 

[e.picler]

Everything is looking great Edi!

John

Thanks, John. I have learned a lot with the help of the members of this forum.
Edi

 

[e.picler]

Hi to everybody!

A question/help for those that have built the PeeWee.
Did you guys face the same problem shown on the photos below? The fan is interfering with the center line of the crankshaft consequently hitting the starting shaft.
What did I do wrong? I already checked the drawings and the fan diameter is correct as well as the center line distance from crankshaft and fan shaft.

Comments, hints, explanation are appreciated.
Thanks in advance,

Edi

 

[stevehuckss396]

Shorten the blades.

 

[stevehuckss396]

It appears that the dimension from the centerline of the crankshaft and the centerline of the fan boss might be off. The radius at the top of the timing cover and the boss for the fan should not be concentric. The fan boss should be shifted up from the cover centerline about 0.200 inches. It appears from your earlier photos that the boss did not get shifted up.

Shorten the fan blades.