Hi

Very new to the rotary engine, busy assembling rotary with help from
dvd I purchased from atkinsrotary but no where do they show how to
time up the engine from scratch. Do you have information with
pictures how to time up the engine pulley marks etc. Then secondly
I'm changing the ignition distributor(single distributor) from normal
points to electronic how to time up the ignition distributor. And
done done how to set the timing on the engine when running ?

Let me know ?

Cheers Barend.


There are usually marks on the pulley. You can check for TDC with a
modified spark plug, a connected transparent hose and an oil filled
combustion chamber. Rock the e-shaft back and forth. When the oil is
at it highest mark that is top dead center.

A crude way is to stick a screw driver in the spark plug hole and
feel for top dead center.

Assuming the marks are at 22 degrees BTDC put a little white paint on
them and get a Harbor Freight timing light for $33 and use that to
check the timing once the engine is running.

A degree wheel is also helpful.

See all the attached files.

Paul Lamar

       A top quality response from Paul, as always.
     The 'Haynes' series of books on vintage cars
     has at least two devoted to different RX-7, general info
     about car engines can be found there.
           Thanks. Salud †
         Jose Gros-Aymerich
           Madrid, Spain


The way I timed my gen 3 13B was to get one of those air  fittings that goes in to the spark plug holes. Then I  put a hose from there into a jar full of water, turned the engine until the bubbles stopped coming out of the hose and the water started to go up the hose. At that point is TDC. index that point somewhere. For obvious reasons you don't want to suck the water up into the rotor housing. This method gives you TDC to the gnat's ass of exactitude.

Paul, I've been flying a bit lately, the plane runs very nicely. Play Video

Brian Trubee

Did you send it from your cell phone? Do you have an I-Phone?
Apple does not talk well to other products.

I can see the thumb nail but it does not play. Perhaps you can connect your cell phone to your computer with a USB cable and extract it as a video to your computer. Then send it as an ordinary email attachment. My android fablet connects to my computer that way
and I can copy files off the fablet (cell phone tablet combo) to my computer.

I got the email on my android fablet and I can see the thumb nail on there as well but
it does not play.

Paul Lamar

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