Hi every body !
Dis is the Eastside_Pete post !
Here, you can discover and read all what Pete make on his great 126...Thank's Pete !

So, hi to all!

First of all, thanks and respect for Porco for creating this post for me, I'm really pleased to have the possibility to write here.

My project is a real low-budget 800 cc stuff. (Well I planned it as low-cost, but frankly: it's not ) On the other hand, I want to make a powerful, but reliable engine, so it makes this thing a bit difficult.

I use the cylinders of a 1600 cc VW Bug, they have a bore of 85.5 mm instead of the 126's 77. This would increase the engine displacement from 652 cc to 803 cc. (I also tried the cylinders of Porsche 356, (87 mm) but they are too big.) No need to say, that both of the crank case and the cylinders need significant modifications.

The very first step is to get a new crankshaft: BIS or Cinquecento 700, 'cuz this types have a thinner counterbalance, so the shaft can rotate free, the counterbalance would not hit the underside of the cylinders.


This is my Cinquecento700 crankshaft.



Unfortunately, my engine is at the World's Slowest Machinery Workshop Inc. so it's gonna be a very long story...

Eastside_Pete a écrit:So, hi to all!

First of all, thanks and respect for Porco for creating this post for me, I'm really pleased to have the possibility to write here...

It's a pleasure for me and for us to read you Pete ! We love mecanical project and good work like yours. Let's go and feel free to make and write what you want here....

Eastside_Pete a écrit:...I use the cylinders of a 1600 cc VW Bug, they have a bore of 85.5 mm instead of the 126's 77. This would increase the engine displacement from 652 cc to 803 cc. (I also tried the cylinders of Porsche 356, (87 mm) but they are too big.) No need to say, that both of the crank case and the cylinders need significant modifications...

Yes, 1600 cylinders are perfects to do this motherfu**in' powerfull engine ! Be carreful to the "made in"...Brazil or Deutschland ? Take COFAP, it's good. I've put this cylinders on my 1600 VW. It's cheap and good parts !

Eastside_Pete a écrit:...The very first step is to get a new crankshaft: BIS or Cinquecento 700, 'cuz this types have a thinner counterbalance, so the shaft can rotate free, the counterbalance would not hit the underside of the cylinders...

Yes Pete, BIS crankshaft is the best original and cheap parts to do a strong racing project. There is some real racing cranckshat with 3 counterbalances, but the first price is 600 euros ! So, we don't have choice to do the best. I will try to make crankshaft with a big metal workhouse near my home, but I must do 2000 or 3000 parts to have a good price for one...No way !

We are all with you Pete, and if you need anything in France, just tell us, we try to help you !

So now, let's go !

Porco Rosso a écrit:Yes Pete, BIS crankshaft is the best original and cheap parts to do a strong racing project. There is some real racing cranckshat with 3 counterbalances, but the first price is 600 euros ! So, we don't have choice to do the best. I will try to make crankshaft with a big metal workhouse near my home, but I must do 2000 or 3000 parts to have a good price for one...No way !

Well, BIS shaft is quite hard to find in brand new, but CC700 is rather easy. Buying a new BIS cranksahft is only acceptable when you have plenty of time, because you never know when will they deliver it. Maybe two weeks, maybe three months. CC700 needs minor modifications to fit in the 650 engine, I will write and upload images about it.

600 euros is to so big price for a racing crankshaft, rather not, if it has a bigger stroke, if you try to design and manufacture a new one, it surely ends up in bigger cost. If you really want to make a new one, I recommend you to make a three-bearing type. This needs the modification of the crank case too (some welding, and machining job), but then you'll have a strong, heavy-duty engine, just as Steyr-Puch 650 TR. Their power could be increased up to 65-70 horsepowers.

Porco Rosso a écrit: We are all with you Pete, and if you need anything in France, just tell us, we try to help you !

So now, let's go !

Thanx! As I see, the images i linked just won't appear, so I'll try to fix this. May I resize them, and upload to Picasa, or something?

Porco Rosso a écrit:No send me them, I will put them online.
My mail ilcubopiccolo126@free.fr

Thanx !

I've just finished uploading to Picasa in this minute. But OK, I'll send you the whole album, there are some pictures about the block too, and there's gonna be some more.

And WE want to see the pictures

Hi to all! So finally, here they are:



This is the end of the Cinquecento 700 crankshaft. Originally there's a plug in the inside, this must be removed if you apply the shaft in a 650 engine, because it blocks the way of the oil, and causes major problems of oil pressure.



This is the shaft mounted in the block. Notice the shape of the counterbalance. It allows the shaft to rotate free, and not to hit the bigger cylinders which have 90 mm outer diameter.



This is the end of the shaft. It's end section is longer than the 650's, so it needs to be cut. The thread of the pulley screw is also differs, so the Cinquecento 700's pulley screw has to be used.



And here is an underview of the block. The block has to be strenghtened with welding. It's important that the whole block must be heated during the welding job. If not, the temperature difference between the cold areas and the welded areas will deform the block. In this picture you can see the stacks in the cast filled up with Al.



This is the part under the timing case cover (or whatever). The area near the cylinder slot's wall is strenghtened with a triangle-shape stuff. It will be machined to flat, of course.



The cylinder slot is drilled up to 90 mm, on the side (to the right on the picture) there's a strenghtening, and there was a stack next to the cylinder slot (upper), it's been filled up. On the next pic, there's the same stuff, from another view.






And this is the another cylinder slot. It hasn't been enlarged to 90 mm at the moment when I made the photo. On the side, you can notice the welding. Next slide please! a1011



And finally: the flywheel side of the block. The stacks are filled up with welding, just like the others I've mentioned. It's important to follow this pattern and not to weld the area right next to the bearing, because it would deform the block.

And yes, the block is really dirty, please don't mention it! I hope you all enjoyed this little stuff!

Damned god, you have made a crazy job

Grrrrrreat job, Peter ! Very nice !
Why don't you weld somes triangles reinforcements, instead of large horizontal weld... I hope you understand...
The bearings are less distorted because the welds would be fewer.

Ps : I just want to say that your crank is dirty !

Yessssss Shelby, like that !

biernaud a écrit:Damned god, you have made a crazy job

Thank you! I'm trying my best. But as AC/DC said: There's a long way to the top if you wanna rock'n'roll. It's far from ready at the moment.

Porco Rosso a écrit:Grrrrrreat job, Peter ! Very nice !
Why don't you weld somes triangles reinforcements, instead of large horizontal weld... I hope you understand... a1070
The bearings are less distorted because the welds would be fewer.

Honestly, this way of strenghtening is not my own invention. I saw it on the page of Denior, a polish guy who have made a 800cc engine, and I consulted with Pawel (also a polish fellow, who has a 800cc Fiat) on the 126 world meeting in Slovakia, and he told me a lot of things about it, and awared me of the critical points. So I just followed their way, with minor modifications.

On the side of the cylinder slot, the strenghtening intended to be a triangle shape something in my case, too, just as Shelby did that. Functionally it's the same, but Shelby's one obviously looks better.

Porco Rosso a écrit: Ps : I just want to say that your crank is dirty !

There are some thing in life which are only good when they are dirty.

Hi fellaz! I'd like to wish y'all a very merry christmas an a happy new year!

http://www.youtube.com/watch?v=yt-K5w1PFMo&eurl=http://www.hellorepublic.com/

Thank's Pete. We wish to you and all of yours a merry christmas. Not yet a happy new year, it's not the time...