forum Forums Technical Silent Hektik ignition system.

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This topic contains 20 replies, has 11 voices, and was last updated by  Falcone 2 weeks ago.

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  • #4908
    Musselermark
    Musselermark
    Member

      I’ve started this thread to inform any interested ignition people of my experiences with the Silent Hektik system.
      Molly has upto last week relied on good old points and distributor for her sparks. The coils looked old and the distributor leaked oil from its vent hole so I decided upon an upgrade. Dyna, Sasche or Silent Hektik seemed my options. Dyna with new coils £338 but still used oily distributor, Sasche with new coils £448, Silent Hektik with new coils and HT leads £359.
      Silent Hektik similar to Sasche with rotor fitted on end of crankshaft and 15 advance curve options selectable in black box.
      Initial installation is fiddly with a guide static setting supplied, this needs to be fine tuned with timing light with engine running to get exactly correct. (lots of stop starting engine ) The Sasche has an led light to show timing I believe.
      I’ve now covered my first 200 miles with correct settings and certainly feel stronger pickup, better tickover and my tacho now works properly. I will update this thread as the miles increase.
      Mark

    • #4909
      JFerg
      JFerg
      Member

        Have a look at my avatar. That’s my lovely 850 Le Mans II, complete with Silent Hekitik ignition, self immolating. This was entirely due to the crankshaft speed ignition, which gives a spark at the top of the exhaust stroke, when both valves are open. It failed to start, backfired, due to rich mixture lying in the inlet tract, which blew the carb off, which pulled the fuel line off. Even though I was on the bike, jammed the carb back on, and kept cranking it to suck the flame in, the result was a total loss. Melted gearbox, timing case, rocker covers, wheels etc. Not one of my better days.

        Historically, crankshaft speed ignition on four stroke engines has always been a potential fire trap. My 1934 New Imperial has it, and it has a gauze flame trap, a Davey lamp in effect, specifically to manage this. Talk to anyone in the vintage bike circles about “Maglitas” and that will be the first retort.

        Of course, just about every modern bike and car uses a crankshaft speed ignition, but they also have elaborate inlet arrangements and other management that serve to contain or prevent fires. Keep the original airfilter box and you will increase your odds of being all right.

        Crankshaft speed ignition is by no means a guarantee of a fire, but just ‘cos you haven’t had one yet doesn’t mean it won’t happen.

        Me; I like points. In any big block Guzzi they’re easy to access, reliable and simple.

        Sorry to be a spoiler, but I’ve been there.

        JFerg

        • #4957

          iant-s
          Member

            I always wondered what your picture was of! What a shame the answer is what it is.

        • #4910
          Musselermark
          Musselermark
          Member

            OH DAM AND BLAST !!! Looks like I might need to buy a BIG fire extinguisher ?

          • #4913
            WestEndGuzzi
            WestEndGuzzi
            Moderator

              We have been warned!
              I remember the physics lessons from school about the gauze trapping flame one side or the other. I have some very fine stainless mesh so will conduct a controlled experiment for filters on my bell-mouths.
              I can also see a strong case for wiring the carbs into position, to prevent blowing off.
              Of course, carrying the fire extinguisher will prevent the fire in the first place, same syndrome as carrying a comprehensive tool kit.
              Thanks for the warning JFerg.

            • #4952
              Robin G
              Robin G
              Member

                I’ll be needing one too! I’m running a Silent Hektik ignition as well.
                At least me and the car will go together 😀

                • #7305
                  Musselermark
                  Musselermark
                  Member

                    Hello Robin G
                    I am looking to fine tune my ignition over the coming weeks. I currently have the static set to 7 degrees and advance curve at D
                    Have you any advice or experience in tuning this system ?
                    Regards Mark

                    • #7306
                      Robin G
                      Robin G
                      Member

                        Hi Mark,
                        I could never get a setting I was happy with, on the supplied sensor. So I’ve now fitted a Hall Effect sensor on the back of the engine, in where the old Inductive sensor was. It’s made a world of difference, the engine responds perfectly.
                        I’m still running with a D curve, and am happy with the results.
                        Hope it helps,
                        Rob.

                        • This reply was modified 2 years, 5 months ago by Robin G Robin G. Reason: Pic to big
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                        • #7309
                          Musselermark
                          Musselermark
                          Member

                            Thanks for that Robin. Slight problem though as I have round barrel engine. So no location for Hall effect sensor or correct flywheel. Further investigation required.
                            Thanks Mark

                            • #7310
                              Robin G
                              Robin G
                              Member

                                Mines an 1100 sport engine, so totally different.
                                I’m running at 8 deg (standard for my engine)
                                Is your sensor in the dizzy?
                                Good luck Rob.

                                • #7311
                                  Musselermark
                                  Musselermark
                                  Member

                                    Mine starts and runs ok with the pick up on the end of the crank but I wish to research and check whether any improvements can be gained ? its set at 7deg static, it is 950cc low comp. stage 2 cam, original carbs. Thanks

                        • #4953
                          DSU475
                          DSU475
                          Member

                            I spoke to a couple of local Guzzi specialists recently whilst doing my engine swap, they both favour the original distributor, points, condenser set up when used in conjunction with carbs. They claim that it is the equal of any electronic system if maintained correctly. The problems occur with wear of components i.e. dist drive gears, dist shaft wear, advance weight springs etc.
                            That said, I have a fairly primitive Boyer Bransden system fitted, this uses pickups within the original dist and costs a third of the price of other systems.
                            The Guzzi lump is not a complex beast, nor is it high performance or high revving.

                          • #4958
                            doverhay
                            doverhay
                            Member

                              You boys are really worrying me now, every time I get a small backfire when starting the engine I’m waiting for the car to burst into flames! A great deal of old British bikes fired on both compression and exhaust stroke, none of them had fancy inlet tracts, so let’s not over dramatise. Most car fires are caused by faulty electrics, yes it could happen and we must be aware of it, but at least keep it in perspective.

                            • #4964
                              alanla
                              alanla
                              Member

                                Hello , Yes I know what you mean,,,, I guess its always good to be aware of any possible issue but in general I don,t think Guzzis (with this system) are any more “flammable” than anything else. Not quite the same thing but the only near miss I can recall on a Triking was when a left hand carb blew of the inlet manifold – due to incorrect timing and/or mixture – and landed on the live un-insulated starter motor terminal causing a few sparks but nothing more serious, So probably a good idea to always make sure your live connection onto the starter motor is well insulated……………..

                              • #7312
                                Claus
                                Claus
                                Member

                                  Hello all,

                                  I run my 4 threewheelers and also the Burton and 2CV with Silent Hektik iginition. A 7th system I have for spare (and for longer trips in the car) In other words I have also 12 coils in use + 2 as spare
                                  I never had a problem caused by the hardware of SH, all problems were self made:
                                  – destroyed sensor cable by exhaust (2CV)
                                  – destroyed sensor (overheating) by contact to the rotor, screws of sensor nor fasted (Pembleton))
                                  – fail by broken plug/ bad contact on the minus line (2 Times, Triking, 2CV)
                                  Thats all in 8 years and + 100.000 mls in sum.
                                  I run the Guzzi engines with 4 degrees static (for smoother idling) and position “8”.
                                  Maybe there are some Ponys lost, but it is optimiced for best torque beetween 3000..5000 rpm and my Webers.
                                  The Citroen (Visa) engines with 10 degrees and position “4”.
                                  The SH ignition there is the BMW box with standard hall but special adapted rotor.

                                  Installation needs 1-2 hours, setting the exact igniton point is done with a strobolamp, turning the engine with starter (by a external pushbutton) but with removed plugs.
                                  This is a very efficent way against exhausted battery and you will have no problem with the hot exhaust after the first run 🙂

                                  If you’ve done the job correct, you can forget the ignition………

                                  Summery:
                                  outstanding quality, service is ok, but manager a little bit “excentric”

                                  Claus

                                • #7313
                                  Robin G
                                  Robin G
                                  Member

                                    Hi Claus,
                                    my problems started when I removed the Alternator and fitted a pulley in its place.
                                    I could never get the timing perfect, but now I can with it reading off the flywheel.

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                                  • #12048

                                    Falcone
                                    Member

                                      Good evening 🙂

                                      I have a 1975 T3 Guzzi which I am putting in to a three wheeled car.

                                      The engine has Electrex World stator kit and currently C5 ignition form America.

                                      I just can’t get this C5 ignition to work, Engine starts and then cuts out with no spark after a few minutes, It can start for 3 minutes to a maximum if say 5 then it stops! Very frustrating.

                                      I have just about given up with it and was considering fitting the Silent Hektik.

                                      I contacted Muzzi Guzzi who sell the Hektik and they tell me they can’t supply for a machine that has been fitted with a Electrex stator?

                                      Has anyone on this forum got the Electrex system fitted?

                                      OR has anyone fitted the Sasche ignition, which is similar to the Silent again to an Electix stator?

                                      Many thanks for any reply.

                                      David

                                    • #12049
                                      Musselermark
                                      Musselermark
                                      Member

                                        Sasche offer their system for distributor fitment. I found it easy to set up and with good results ! No wasted spark either which my previous Silent Hektik system had and possibly caused engine fire ?

                                      • #12050

                                        Falcone
                                        Member

                                          I am looking to fit a Sasche system just trying to get confirmed will fit a Electrix World stator kit. I have written to the manufacturers and will ee what they say. Have been told by Gutsibits that people have done this but don’t wantto buy and find it doesn’t fit!!! 🙂

                                          • #12051

                                            SteveO
                                            Member

                                              I have a Sasche fitted with a Euro Motoelectric stator which is very similar in looks to the Electrix if not the same item under a different brand name. The EME fits BMW and Guzzi and I believe the rotor is the same as a Ducati.
                                              Took a bit of fiddling to get it to fit, if I remember right mainly filing the mounting hole slots in the sensor plate. Might have used longer screws. Note EME state for use with Bosh or Saprilla (spelling) alternator.
                                              Does require spacing of the alternator cover away from engine about 5mm over and above the black plastic spacer that came with the Triking.

                                              Hope this helps

                                              Steve

                                          • #12054

                                            Falcone
                                            Member

                                              Thanks Steve.

                                              I have been sending Emails back and forth to Sachse and in fact they are keen for me to send the Electrix stator over to them to make parts which they can then offer to anyone who might be interested. Trouble is I have to wait ’til mid January as they are relocating.

                                              Had a quick look at your part and as you say looks very similar but I ‘think’ there are differences. The fining looks larger and more like an the Ducati item and possibly the fittings are different which is an added issue with the Elektrix item.

                                              I had already surmised that the spacing would be different but thank you for that confirmation.

                                              Dave

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