El yapımı motor.(muhteşem bir proje)

[mygokhan]

PeeWee           4        Cylinder, 4 cycle
       The last engine designed and built by Bob Shores.               Click here to go Bob's page for this engine.
                    This is the Bob Shores Peewee V4. It is the famous 4 cylinder with        a 5/8 bore and stroke. Having never built a casting based project,        I had been looking for a casting based project to be my first. I        saw Bob Shutt at the 2007 NAMES show and liked the V4 project. At        the time it seemed to me to be beyond my skills. Seeing it again        RUNNING at the 2008 show, I came home, tracked down Dirk, and        bought the castings.  
  It  is built using castings and plans purchased from Dirk Tollenaar. The  plans are not the greatest, I am guessing because Bob passed away before  getting a chance to finish the plans. This added to the difficulty of  the build and ultimately the reward. I started drawing the engine in 3D  cad to verify the drawings and allowed me to "fix" a few things. This  lead to about 60 drawings of parts that needed dimensions, but mostly  redesigned and added parts to change the looks of the engine to my  liking. All things considered, I'm glad I picked this project. It has  been a mountain of fun.
  I  don't have the gene that allows me to build to the plans. Of course this  lead to the fancy motor mount system. I also made some additions like a  counter balanced crankshaft, dip stick, balancer and timing pointer.
 
  10/5/2008
  Just  finished machine work on the peewee heads. If you build the Peewee, DO  NOT make two heads from the drawing set. The plans show only the head  for the 2-4 cylinder bank. This head will not work for the 1-3 cylinder  bank. The 1-3 head is one of the things that will need to be reworked  before it is machined.
  I  changed the plan so that Uncle Dale's (Detrich) plugs would fit. I also  plunged an end mill in .125 at the port openings to help me locate the  hole and to clean up the entry for drilling. Other than that, they are  stock Bob!!
 
 
 
 
 
 
  12/24/2008
 I have  completed the valve cages. They are pressed in and ready to go. The  valves are finished and installed. The rocker arms are completed. That  completes the heads.
 
 
 
   
  1/1/2009
  This is  the distributor for the Peewee. Made from clear acrilic rod it should be  cool to see the smorks jumping all over the place in there.
 
 
 
 1/2/2008
  This is  the camshaft that was created by following the steps in the article. Click Here to go to the article. That being said, I used the  "hot" table that can be found at the Bob Shores engine Yahoo group. The  cam was made with extra duration and a smidge extra lift. The  distributor gear is bored to fit and pressed on the shaft. Then the  outer diameter of the gear is turned to size and the rear bearing is  pressed on. The timing gear and front bearing are reamed to a slip fit.  The timing gear was modified to fit behind the front cover by reducing  the thickness of the hub and redrilling for the set screw. The gears  came together very nice with no noticeable slop.
 
 
 
  The water  pumpis also complete. I changed the pump so it discharges from the rear  and milled a pocket in the front for an o-ring incase the shaft leaks. I  also changed the pulley to a modern performance pulley. None of the  performance outlets had one in stock so i was forced to make my own.
 
 
 
   
  2/22/2009
 Sense the last  installment there is the addition of black paint. I also made the rods  and rings. I used bob shores method on this set. If they fail i will try  the method using the fixture. The rods are like little H-beam rods. The  wrist pin will press into the rod and float the piston. The Intake  manifold is also complete.
 
 
 
 
 
 
 
 
 5/1/2009
  Here is  an update on the build. The carb is completed as is the radiator. I  deviated from the bob shores method. I did'nt want to make the punch and  squish the tubing for the core so i designed my own method. I made a  fixture to drill the holes and another to space the fins for soldering.  The tanks were made from solid and the fittings and things were soldered  into the tanks. The tanks were then soldered onto the core. All worked  well and I am happy with my first attempt at a radiator.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 5/24/2009
  Things  are moving along. The plumbing is almost finished. The radiator and fuel  tank are complete and mounted. I am working on a tubing bender for the  exhaust system. The entire project has been relocated to a permanent  slab of corian. I'm getting close!!
 
 
 
 
 
 
  2/4/2010
 Time to take the Peewee out of  the work in progress. The little bugger is done. I think it is running  well and couldn't be more pleased. All that has to be done is clean and  polish and paint the pipes flat black.
 I was in the garage trying to  get the thing to fire. It would run on 2 cylinders only. When I cranked  it by hand the Peewee would fire in the center of the rotor. I took the  copper plate off the rotor and moved it back about 22.5 degrees and told  my wife "grab the camera, I think it's going to start". This is the  video she took.
 



First run video: http://www.youtube.com/watch?v=P5WEAdKPG1M
  This video was taken after some  tuning of the carb was done and thing were running well.
  Final video: http://www.youtube.com/watch?v=1-JRQGPswVA
 
 
 

[Ugur A.]

Bloktan eksantrikli V4.:hmm: Enteresan.:blm:

[mayham85]

çok hoş olmş

[seyyah]

Birde teşekür butonunu bulabilsem.:++: Güzel bir çalışma olmuş.:ok:

[crash]

Harbiden V4 yapmış adam.Uğur abinin dediği gibi enteresan gerçekten 4 silindirli bir motora V düzeni neden gerek duymuş onu anlamadım.Sanırım fantezi yapmış biraz Bu arada biraz araştırdım Honda motorsikletleri için bu düzeneği kullanıyormuş bazı modellerinde.

[Ugur A.]

Harbiden V4 yapmış adam.Uğur abinin dediği gibi enteresan gerçekten 4 silindirli bir motora V düzeni neden gerek duymuş onu anlamadım.Sanırım fantezi yapmış biraz Bu arada biraz araştırdım Honda motorsikletleri için bu düzeneği kullanıyormuş bazı modellerinde.

'70' li yıllardaki Ford 17M motorları da V4 idi.:wnk: Yerden tasarruf etmiş oluyorlar böylece.:wnk:

[crash]

'70' li yıllardaki Ford 17M motorları da V4 idi.:wnk: Yerden tasarruf etmiş oluyorlar böylece.:wnk:

Evet cidden ufak bir motor :ok: