HEILEMANN STERNMOTOREN
Feinmechanik in Perfektion - handmade in Germany
  • 180ccm SM
  • 350ccm SM
  • 700ccm SM
  • 1. Generation | 9-Zylinder 180 ccm
  • 2. Generation | 9-Zylinder 350 ccm
  • 3. Generation | 18-Zylinder Doppelstern 700 ccm
 

September 2012- Construction Phase 2

Assembling the crank case

 

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Newly made crank pins with splines to lock the head connecting rod.

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Assembling the cam disc into the center case with two gear wheels in between.

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Assembling the clutch plate into the center case.

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Assembling the crank shaft into the front panel

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… and here two gear wheels are installed, too.

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Assembling the cam disc in front

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… good to see here: The crankshaft with running gears for the gear head.

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Installing the push rod guide into center case.

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Installing the push rod guide into the rear plate of the cam disc lid with inclusion for the starter.

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Rear plate with inclusion for the starter and compensation crank shaft.

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Assembling the engine mount with inclusion for starter shaft.

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Rear plate with engine mount and starter inclusion, then central case with cam disc and clutch disc as well as front plate with cam disc lid (left to right).

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Left and right crank case with center case.

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Inside view of crank case with clutch disc and support bearings.

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Inside view of back crankshaft linked with starter compensation crank shaft and pinion.

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Pre-assembled 18-cylinder crankcase.

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Complete assembly

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Andreas pressing in the sockets on the rocker arm shafts. What a lot of work!

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Cylinder head with sockets that have been pressed in and shafts.

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Valve cups for 18 cylinder heads. What a huge amount ...

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Elke drilling the valve cups ...

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... with specially custom-made devices.

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Many rocker arms, those need to be deburred and drilled.

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Andreas cutting rocker arm M3’s threads in high-strength aluminum – not so easy.

The time needed to build the device is quite astounding and should not be underestimated.

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Cutting the rocker arm’s thread with a thread drill.

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Our cylinder heads’ new form. It took two years from planning till production.

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Very nice to see here: cylinder head with shrunk valve cups.

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Hemispherical design of combustion chamber with valves built within.

 

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