4 Cylinder Air Cooled

[Draw-Tech]

I started my 4 Cylinder Air cooled engine today. I have made a few changes as I go from the original plans which are great, and can be purchsed from Dale Detrich at http://www.daledetrich.com/4_cylinder.htm I attached my drawing of the engine as well as a couple of work in Progress.This is the Block and end plates (Not Finished)

TodayI spent most of the day making an adaptor plate for the rotary table, to hold asmall 3 jaw chuck To drill and tap the holes in the Block and end plates. Couldn’tuse an index head due to the odd hole pattern, which was alternating 50°, 40°,50° because of the flats that are going to be at 90° to each other.

Cut O-Ring grooves in the endplates.
Drilledholes in end plate with counter bore.

Drilled and taped End of block.

2/18/2013
Today I took a brass bar 1/2 x 3/4 x 13" and went down to my friends sheet metal shop, and rolled it into a ring. Looks prety rough, next Imade a 4" diameter plug and pounded the ring on to it. Beat the hell out of it to get it round,sanded butt ends clean took off plug, and with a large C-clamp closed the gap and silver soldered the butt.Went to the lathe and turned the bore and the front face,and had to quit for the day.

 

[stevehuckss396]

Awesome work so far. I have the plans for this engine. It is in my top 5 favorite engines. I will be following along for sure.

 

[Rivergypsy]

Nice work - I'll be following this with interest!

 

[vcutajar]

As will I.

Vince

 

[mikegw1961]

I will be following this build as well

 

[agmachado]

More one cool project to see!

Thanks,

Alexandre

 

[Draw-Tech]

Thanks to All

I have made some changes, mainly in the sealing of oil leaks. I will be giving Dale a full set of drawings to do with as he pleases. I will post changes as I Get to them. Main changes I have done so far, is make the bore in the block a bit smaller to put O-Rings in the end plates. Also changed the crank bearing to 3/8 Diameter to add crankshaft seals. Any interested after buying Dale's Plans can contact me at [email protected]I will be glad to help. I am now 65 years old been machining from the age of 9.