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303 wankel engine build

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Old 04-18-19, 02:31 PM
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303 wankel engine build

Hello everyone, just join up on this site to show some of my sachs engine projects and maybe get some help and advice on these engines.
I was lucky to get some brand new sachs 303 engine parts, so will start collecting more parts to build the sachs 303 engine.
I'm having problems with attachments,get to 90% and stops ?

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Old 04-19-19, 07:14 AM
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Last edited by Sachs Man; 04-19-19 at 08:35 PM.
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Old 04-24-19, 06:56 AM
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Originally Posted by Sachs Man
Hello everyone, just join up on this site to show some of my sachs engine projects and maybe get some help and advice on these engines.
I was lucky to get some brand new sachs 303 engine parts, so will start collecting more parts to build the sachs 303 engine.
I'm having problems with attachments,get to 90% and stops ?
sounds like your trying to use the app to upload attachments, don't, the app is horrible
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Old 04-27-19, 08:14 AM
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Originally Posted by lduley
sounds like your trying to use the app to upload attachments, don't, the app is horrible
No. I'm using my desktop PC.
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Old 04-29-19, 02:52 PM
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Originally Posted by Sachs Man
No. I'm using my desktop PC.
Looks like i can now post up photos of the build



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Old 04-29-19, 10:54 PM
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Been patiently waiting for parts to arrive from overseas, these parts arrive today from Dart motor sport in the UK. they fit the sachs 303 rotor. I notice the corner springs are a heavier gauge spring and only one spring for each corner of the rotor. With the sachs engines they use a lighter gauge springs and two springs for each corner of the rotor the convex sides must be touching to ensure maximum spring compression. I have save well over $200 from buying from Dart motor sport compared to the Us seller









Last edited by Sachs Man; 04-30-19 at 04:37 AM.
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Old 04-29-19, 10:58 PM
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I have started a pre assembly on the engine, machine up some alignment dowel tubes and clean up the eccentric shaft.









Last edited by Sachs Man; 04-30-19 at 04:40 AM.
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Old 04-29-19, 11:06 PM
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Got some more work done on the engine, fitted all the seals on the rotor and assemble the engine. All good no issues, rebuilt the magneto unit with new parts and assembled.







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Old 04-29-19, 11:10 PM
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Bolted on the cooling fan, the 24m nut i need to machine down and machine up a washer.



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Old 04-30-19, 08:05 AM
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What are your plans with this motor or you just building it for the fun of it?
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Old 04-30-19, 09:16 AM
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Originally Posted by CryoSignal
What are your plans with this motor or you just building it for the fun of it?
I like to install it in a motorcycle frame similar to this bike.



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Old 04-30-19, 10:36 AM
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Rx2 > FD

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Damn that is super cool. I've been wanting to do either a 303 based bike build or a 1 rotor build for Locost 7 (Lotus Super 7 Replica).

I've been tossing around the idea of a 1 Rotor Turbo set up for my Rx2...
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Old 04-30-19, 10:55 AM
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Originally Posted by sen2two
Damn that is super cool. I've been wanting to do either a 303 based bike build or a 1 rotor build for Locost 7 (Lotus Super 7 Replica).

I've been tossing around the idea of a 1 Rotor Turbo set up for my Rx2...
Yeah i would like to know that type of gearbox he is using. This company builds single rotary engines
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