BaldEagel

Sorry if this has been posted before, but I belive the ignition modual for the latest Prosport 58 has changed recently.

The Choke servo is plugged into the ignition modual itself and is controlled by the electonics inside and throttle position, various settings have to be done according to which type of silencer you have (long or short) will only work on 9 - 13 volts and certain programming has to be done, now I have got all this from the instruction sheet included with my 58pro but I do think that a technical explanation would help me understand how it all works and what is happening.

There are some confusing instructions also with the modual in that step 6 says "Connect throttle potentiometer outlet on your receiver" so reciver throttle outlet connect too the modual, step 7 says "connect servo with the ignition box" now I am assuming it means the Choke servo and not the Throttle servo as in step 6, am I correct?

Could someone posibly give me a technical update on how it works?

Thanks in antisipation.

Mike

pe reivers

The ignition clearly needs two inputs to operate the choke: throttle stick from your transmitter, and rpm measurement from the ignition module.
Using these two inputs, it can calculate the choke servo position needed. What still fails in my humble opinion, is an added temperature differential sensor to check engine temperature and input that to the servo algorithm as well.

BaldEagel

Preivers

Agreed without knowing the temp you are only getting a linier or set responce to the throttle position with the choke which may not be neccesary due to the temp either at intake, head or exhast, but this is a step forward from all the others at least they are trying to give us some sort of automatic choke, which can only help. Tell me is it neccesary to have the choke on a seperate channel to operate it for pre-start choking or is it set closed with the throttle closed, I do not have mine set up yet so do not know the set positions.

Away for a week fishing in Ireland so will not be able to reply immediatly, please be patient (15/07/06) Thanks for your reply.

MIke

pe reivers

It is not very clear from the manual, and I only have a standard ignition available, without the choke option, so I can not try out. I attach the ignition manual, so others may have a look at what we talk about.
It seems, that you can program the trottle stick positions at which you want the choke fully closed or fully open.

BaldEagel

Preivers

Have you had any problems with the magnets on the drive hub being in the wrong place, from a post on your help site it seems the magnets should be at 120deg is that correct? The magnets on my drive hub are at 180deg as I have not installed the engine yet I have not tried to start it so the problem may be there waiting to happen.

Mike

pe reivers

I wish I had! that would mean I have received lots of engines with the new ignitions.
Waking up from my dream:
I can truely answer with "NO"
On MVVS engines, the second magnet should lead the magnet in top position by 120 degrees. (Eyeballed)
Contact your supplier about this.
edit:
Evolution ICU ignitions are 100% identical to MVVS ignitions, and have magnets at 240 and 120 deg positions (info MVVS and ICU flyer)

BaldEagel

Preivers

Is it the same on the new ignitions as they have changed quite considerably can someone or Preivers who has the new ignition with the automatic choke and a 58pro confirm that the magnets on the prop drive hub are at *deg to each other.

Mike

glofuel

Preivers

Can you confirm what you actually mean by the following:

On MVVS engines, the second magnet should lead the magnet in top position by 120 degrees. (Eyeballed)

ie - at what positions should the magnets be in degrees when piston is TDC looking from from of engine with cylinder upright ?

Ian

glofuel

Preivers

Can you confirm new MSR ECU magnet timing positions as attached pic

[img][/img]

BaldEagel

Jenny at JE has e-mailed me to say the Bob is trying out one and that they are awaiting a reply from MVVS, it looks as though we will just have to be patient.

Mike

pe reivers

I will not answer this question a zillion times. read what I wrote in the centence after the Eyeballed thing.
Once more:
With the piston in top, the ignition magnet is UNDER THE SENSOR. The other magnet is 120 degrees to the left if viewed from the engine front (leading the ignition magnet in the direction of rotation)
Capice?

buckiflyer

Mr. Preivers..only one thing.. I have been searching the posts and learning... but if the 26 and the 35 up front has only one magnet .. what does this mean as to ign module type.... yes I am sure that they both only have a single magnet?? The pickups (sensor) is located at the 9 o'clock (looking a front to rear) position.

thanks

bucki

pe reivers

This question is off topic. It means that you have the first type Vlach ignition, before they introduced the two magnet type (180 degrees apart)

BaldEagel

Just to clarify there are it seems three different types of ingition module the early type with one magnet, the later type with two magnets at 180deg and the new module with two magnets at 120deg.

To further clarify on the new module with the engine on TDC the ignition magnet should be under the sensor, the other magnet will be counter clockwise from this position at 120degs.

Privers: I have only written this as I think it may have confused some people as the sensor is on the left when viewed from the front so the other magnet is actually right of it, I hope I have this right (pun intended)

Mike

rmenke

My Feedback: (13)

privers:

Want to thank you for your great support. I have the new P ignition on a 3 cell 2100 mah lipo, elvo 26. My motor did not come with any instillation instructions for the new ignition, the old manual was sent nib. Apparently I also did not receive the "programming cable". Copied your instructions on this forum. Frankly, I am a real old dummy and from the very limited instructions, not about to plug in my $200.00 receiver or $160.00 servo into a 12V system. Figured the system would default to something without programming so am flying the system without programming with a Bison short muffler rather than chance damage to my system as I frankly do not know what to do if I did have the programming cable. Instructions suck for a dummy non electrical person, pictures are fuzzy off the internet.

Anyway, engine runs well as is with no connection to the choke servo, now operated off the transmitter (10 cchanel so no problem) Have about 8 flights on the a new yak 54. About 10-15 minutes into flight, the engine will burp and go back to running normally. The lipo still has over 11 volts at this point, well above the 9v minimum. Shortly after the burp, I start getting radio hits that are short in duration and no real control problem up high, a duration of about 1 second. System is PCM JR 10X, so no cheepe stuff here.
Yesterday got hit about 12" off the ground landing and tore things up a little.

My question is obvious, can the ignition system under these circumstances be causing my "hits". The motor comes with a NGK CM-6 plug that has small print on it "Not for aircraft" on it. Should I be looking for another type of plug prior to flying again? Would appreciate any thoughts you may have and really enjoy this forum.

pe reivers

To be frank, I have no experience yet with the new ignition. I would say, if it functions for 10 minutes without interference, it will do so for the next ten minutes as well.
Have you measured the servo output socket in the ignition? I think that is a standard 6V servo connection.

glofuel

rmenke

The spark plug marked not for aircraft means full size aircraft !! ie microlight etc

If you have the new mini spark plug Cap, check that it is secure because mine although has had little use and not caused a problem yet, has started to feel loose when attached to the plug and the spring does not look as though it is making good sprung loaded contact. I can seen marks on the plug contact where it has been rubbing.

This may be causing your interference

Ian

BaldEagel

rmenke

PM "glowfuel" he has a 58Pro up and running with the new ignition he may be able to help you.

Mike

glofuel

Mike

I did answer rmenke with a few idea's

But my post was removed shortly afterwards,

Reason:Only the Manufactures representative is allowed to reply to questions

Which I thought was a cheek seeing they don't seem to now anything about these NEW electronic ignitions themselves and are slow to respond aswell.

Please note last comment is aimed at MVVS themselves and not there reps, who have provided as much help as they could.

They might get there eventually when the summer flying weather has gone......

BaldEagel

Ian

I know what you mean, I also have had my post removed and thought just as you did, still waiting for the return of the prop hub and also still waiting for my 45, this is starting to get silly.

MIke

glofuel

Mike,

Just had message from JE, MVVS are saying another 2 wks for prop hub.

Feeling sorry for everyone who is waiting. []

Just to rub it in

I am now looking at changing up to something like a 24x10 possibly larger to get the rpm down to where the power is (6300), mine is turning a JE 24x8 carbon at 6900-7000rpm on the ground which is too high and rips a bit in the sky, so a bit to noisy aswell.

Pulls my 19Lbs Diabolo up into the clouds like a rocket !!!!

Ian

BaldEagel

Ian

I have heard today 22nd August 2006 that there is possibly a problem with the crank on the 58 whether this is with the 58 pro only or the standard as well I do not know, but I have been asked by Just Engines to return my engine for replacement, I wonder if this is to do with a ballance issue hence your vibration?

I wished I had the opertunaty to rip the sky, I have a Carbon 22x10 three blade waiting and waiting and waiting.[:@][:@][:@][:@][:@]

Mike

glofuel

Mike

where did you here this ?

Are you sure yours not been recalled to have the prop driver changed ?

pe reivers

Mejzlik has the 22x10x3 props readily available, They shipped in a few days???

BaldEagel

Ian

No the prop hub went back seperatly, I was contacted by Paul at Just Engines and told that the manufacture had recalled the 58 due to a crank problem.

Mike