yep, me to and how many degrees BTDC did you set it? and where was it set before you moved it.
ENJOY!

It arrived set at top dead center. It took only took about 30 minutes to change to 28-30 degrees before top dead center. That included removing the cowl, setting the wheel on the prop shaft, and finishing up. A simple mistake, and an even simpler one to correct. The timing hub on the TS-52 is one of the easiest ones to set I've ever seen. Two set screws in it, making it ultra simple to adjust. Loosen, turn to adjust, tighten.

Better still, if you have a CH ignition, which Taurus has, and have never done something lke this,the instructions for how to do it come with every ignition, along with a paper protractor and how to use it.

The engines are usually timed right. Mine ws a simple slip. No big deal. If somoeone was really interested, they might find that there are a lot of engines from many manufacturers out there that are currently running a bit out of time. Most never notice.

The Disclosure Post

In all fairness, the whole story should be given here. I don't "ground run" my engines. They are not glow engines and don't require all the dumb "bench running" and mixture/rpm cycling crap.. I set them up on the plane and go fly. My tuning is done at the field and the rough mixture is set just prior to the first flight while the end mixture is dialed in after flying and as the engines break in.

When I first ran the engine I knew something was amiss when I was not able to obtain max rpm as high as it should of been. The engine ran ok and had enough power but I knew there ws more there somewhere. When I returned home I called Bill and told him about it. His first words were "I'll send you another one in the morning" and for me to send the one I had back to him. It was fairly late in the evening where he is at so nothing could be done till the morning No discussion, arguement, nothing. Just send it back and he'd send me another one, no problem.

Since I've worked with engines for some time in one way or another I already knew that the issue was something simple and that a little tinkering with either the carb or the timing would be the fix. I told him that I would handle it myself if he had no objections and declined his offer. That offer was made several more times in the conversation while we discussed the possible issue, and that if I was unable to resolve it the offer remained in place. Sound like another manufacturer we have all heard about? I believe it does.

In any case, the starting point when you're timing an engine is Top Dead Center, or TDC. When you're checking for TDC, locate it, and look at the magnet and find it under the sensor when the engine is at TDC the issue becomes obvious. OK, looks like someone got distracted or called away when they were setting the timing. None of us have ever been distracted when we were doing something and forgot where we were when we came back to it, right? Right. So the hub got snugged down where it was at before the distraction so it wouldn't move and was forgotten about. A simple "oops".

The fix was easy and took little time so there's no complaint about it. The manufacturer offered to do whatever was required to straighten it out and was kind of surprised that I was willing to see it through myself. It was made clear that he would send out another engine should I be dissatisfied for any reason. The engine runs flawlessly and provides EXCELLENT power for what it's intended for, and it runs smoother than any single I've run before, at any rpm level. I couldn't be more pleased with the engine or the level of service from the manufacturer. Better still, I got to play with the engine and find out how easy it is to work with if I ever want to change anything. What could be better than that?!

I'll attach a copy of the note I sent to him after the timing change for all to see what my thoughts were at the time.

Pat

The e-mail, sent 3/12/07 below;

Bill,

Well, after all was said and done I have to say the TS52 is a great little engine. Putting the ignition timing at the correct location took care of everything. Currently, with 1 gallon through, using the provided 50-1 Stihl, it's turning the MSC 22-8 at a static 6720. Doesn't sound like a lot compared to Menz and Mejzlik type props but the thrust produced with this prop is amazing. I'm a 3D flyer so speed and max rpm is not what I'm looking for. Instant response from a dead stop and the maximum amount of air moving over the surfaces at any speed is the goal here.

Excellent response in vertical performance pulling a 17lb, 15 oz plane out of a dead stop hover, with acceleration continuing for the duration of the pullout. Super reliabilty with the abilty to idle down low without stalling. I may still be a touch lean on the top end. Near the end of a 500 foot vertical upline you can start to hear it sag a little the last 50' or so. Mid range is a treat!! Super smooth, making maneuvers like high alpha knife edge, harriers, and hovering that much easier to do. It's easy to find that middle rpm range and leave it there throughout a harrier and not have to "blip" the throttle like you would on an engine with a sloppy middle.

I haven't gone back to the 23-8 Xoar to see what it turns, the MSC is working too good to pull it off. Like the Xoar, it almost sounds like it's on the edge of being ripped at peak level flight speeds. First time I've had a 52cc engine be able to do that with the MSC. As you've noted, those are some wide paddles on that prop.

Thanks for the great engine. A little work in the set up but a whole bunch of performance.

Pat Roy

Thats some great discusion silversurfer.I appreciate your time invested into helping people with Taurus questions.I'll contact you or post here when I am ready for the next step,which is probably choosing and wiring and mounting the Ignition battery.I"ll need to stay light,as I have only a 80 inch wing on the extra,a battery that can provide 60 minutes of power should be enough,since I will probably only fly 3- 4 15 minute routines.Usually have something else at the field to fly also..

4.8v, 600-800 mAh.

Nicad? and then get the small Deans connectors?

Silversurfer
thanks for the information!
ENJOY!

Yup, nicad. You could run out and get a nimh, lion, or lipoly, but the ignition is 4.8 nominal. Not 5, not 6, not 7.2. Might as well get something inexpensive that works well. By the time you added regulators with lions and lipolys there would not be any weight savings. Hard to mess up a nicad, too.

You will probably use a DSC super switch with standard radio connectors on it. Makes charging the ignition battery real easy and they are generally great switches. There will only be one end of the ignition wiring that will need to have a plug. Grab an old servo extension and cut it in the middle. Solder splice the end onto the ignition wiring that you will need. Don't forget to put the heat shrink on before you solder the wires together. Red is still positive between the switch, the ignition, and the cut servo pigtail. DO NOT get them backwards.

nitro wing: Hey good to hear from you. Do you have that Giles 202 yet? Hows the weather out there in BC now? Best Regards Capt,n

captinjohn
Yes the Giles is parked on the stand,the flying weather is getting better every day,thats why I am getting back on the board,time to dust off/charge and double check a few things and tinker on the new ones.I have several hobbies,so I need to rotate interest.
That Giles is a lot of fun,the motor is not even broke in yet..It is a little fast and pattern like though,thinking of moving all the gear into a 74 inch Extreme flight Yak,its more my style of flying.

Silversurver
Sounds good,will probably get the battery/switch and prop this weekend 22x8 for run in? I think I maybe able to get a BME prop locally,theres some JFK and Zingers too.There are some better exotic blades out there that I will have to order.

I don't know what you have the engine in, but MSC is in your country if you plan on flying 3D. Their 22-8 is a stump puller. I would not waste the time, money, or effort drilling a Zinger. BME, Wild Hare, and Xoar are all the same prop. Find the least expensive in the bunch if that's what you intend to get. A 22-8 is good for break in and flying. No need for a special "break in " prop. A 23-8 Xoar loaded my engine more than the MSC, without any additional benefit for 3D.

Pat,

Do you have a website for MSC? I might as well look at supporting a (semi)local supplier...

Thanks,
Mark

Hi Guys, I don't get here too often, too many other things on my plate. BUT, I want to thank TKG for alerting us to a potential problem And to Silversurfer for the kind words.
First the potential throttle arm problem. This is a first time we have heard of it and we have since taken care to eliminate the problem. Henceforth all throttle arms will have an additional washer/bolt added to make sure it doesn't come off.
Second, Silversurfer, I take full responsibility for the timing issue since every engine is checked by me before it leaves here. All I can say is I apoligise for the inconvience and thank you for being able to make the necessary correction.
If anyone has any questions about the Taurus, please contact us via our web site and thank you for choosing Taurus.

The website should be [link]http://www.mscprops.com[/link]

T-One,

No apologies are needed, but thanks in any case. As I said before it provided an opportunity to play with the engine that I would probably not bothered to do with for some time otherwise. Great engine that's doing everything I'm asking of it and doing it well. I can't ask for more than that.

Thanks, Pat. I will definitely be calling them when my G-62 and 46GT arrive here...


Mark

Its an Old Midwest Extra 300S (somewhat modified) kit I am taking a decade to build,this plane is not a 3D er,but I will ask it to perform sillly things,I'll try a MSC..

For all the people that are looking for rpm numbers I broke down and ran the 22-8 Menz "S" prop today. It's another wide blade prop. Keep in mind that the MSC 22-8 is turning 6,720 and I'm extremely pleased with the performance with 1.5 gallons of fuel through the engine so far.

The Menz immediately jumped up to 7,500 rmp. Impressive, huh? Ran and flew well but IMO the MSC still outpulls it. Those numbers match or exceed the average DA, so it's definately up there in power. I'm sorry to say it, but the Taurus 52 definately beats both my Brison 3.2's in every aspect except midrange, where both engines shine with no burbals or blings at any time.

I am just days away from actually firing this Taurus up.Drilling the prop tomorrow.Gosh,I sure have taken my time to get this project going
Thanks Pat and everyone for the inputs so far.

Just visited the Tarus web site. That 52 is a really nice looking engine for sure.

Karol

My friend used a drill press to drill the prop.He only went to 5/32 because the next bit is a 11/64 and thought it was too big.
The bolts seems to have just a tiny,tiny bit of wiggle in a 11/64 hole.Is that ok?
To mount a spinner,I would need to drill trough the backplate?

Edit,had all the # wrong

A loose bolt fit through the prop is ok. Better than a tight fit by a bunch. Yes, you will have to drill the back plate. If your spinner has side screws holding the cone in place take your time and be very certain about prop alignment in the spinner cut out before you do this. The easy way is to drill the prop with the holes in the position you desire, then set the prop over the spinner back plate, bolt the prop to the back plate, and use the prop as a drill guide. Use a 10mm bolt and nut to secure the pair for drilling.

Just came in from the backyard after attempting to bring this engine to life.I bought it 14 months ago,and have been looking forward to this day for soo long.

It is Alive!! And it runs perfectly!! No troubles at all.
Seems to be a frisky motor,very responsive
Thanks for the advice Pat,everything turned out just fine.
This this is the year for me to finally fly a real 50cc Aircraft.I have waited for years and had to safe up, as I have a limited budget.
But I swore I would not skimp on the engine and electronics.
Big thanks to Bill Oberdiek from Taurus also [8D]

Its nice to see happy folks with the Taurus engine.
Just stopped by to see how things were going.