torque limiter

sparks · Dec 28, 2007

Hi All,

Removed the starter toque limiter today and fitted the one I recieved from Dan at Motoexotica and this has solved the slipping starter problem.
I tested the toque of the original one I took only 5Nm hence the slipage, I did the same test with the new one and I could get 25 Nm before it would slip.
This might be a test figure for the doc Taffy.

Regards

Sparks.

husabutt · Dec 28, 2007

What year and model do you have?

sparks · Dec 28, 2007

Hi Husa,

It's a 04 550, I already changed the spague clutch earlier this year but made no difference. When I took the old one apart it has like a brake lining sustance on one side of the gear this is what wears and gives the slip.

Regards

Sparks.

BOSS · Dec 28, 2007

That was a great price you paid for that limiter Sparks,Dan is the man!

If I had known I would have tryed to get it first

Ya breakaway value should be between 7 to 15 ftlb.

chilledspode · Dec 28, 2007

Since we're on this topic - anyone have any thoughts as to whether this torque limiter is susceptible to performance loss due to colder weather?

My 06 FS will not turn over on the e-start at temps below 15C - the torque limiter gives up completely - get it to 15C and it will start every time as soon as you hit the button.

I have yet to take it a part - waiting on replace limiter...but I'll test the torque when I pull it at room temps and then at cool it in the fridge and see if it changes.

Either it is the increased engine drag due to low temp oil viscosity or somehow the torque limiter is directly effected...

Any thoughts would be appreciated

Cheers

Mark

NB: Froggy - if you want my old one when its out, its yours - it'll probably work fine in your part of the world

supertireguy · Dec 28, 2007

My 05 also had the gear wheel torque limiter (aka starter clutch) issue and had it replaced under warranty. It seems a batch of 04 and 05 bikes had this part outsourced and the supplier built them with too low of a slip factor.

With temperatures reaching chilly 38f here in SF I have also noticed the e-start laboring a bit more that usual.

My starting technique is to use the manual decompression lever for the first 2-3 seconds of the cold starting procedure to allow the motor to turn easily and get some oil circulated. After that a quick twist of the throttle for the accelerator pump to squirt some gas in the carb and then hit the e-start again.

chilledspode · Dec 28, 2007

STGuy > your approach is sound but in my case the torque limiter won't even turn the motor with the decomp pulled in (I am sure the decomp is working because I can roll the motor through with kickstarter using my hand)

I suspect when I get the torque limiter out I will find out it is shot, but I do want to know if using it at 15C is destroying the limiter - I was always under the impression it was the battery's ability to crank the starter (or the starter itself) was the limiting factor for cold starting....

Cheers

Mark

biglou_is · Dec 28, 2007

I have the same problem with my '06 650e. I googled Motoexotica for info, but didn't see anything resembling torque limiters.
I haven't tested the breakaway on my starter, but I'm sure it has a problem. It slips on a regular basis and I regularly have to use my comp. release. Like I said, I haven't tested mine, but I would probably rather just order a new limiter and install it rather than pulling the bike down twice.

LOU

sparks · Dec 29, 2007

BOSS said:
That was a great price you paid for that limiter Sparks,Dan is the man!

If I had known I would have tryed to get it first

Ya breakaway value should be between 7 to 15 ftlb.

Hi Boss,

I was told it was always the sprague clutch that gave in the go, but there was a thread by one guy on here his one and only not seen him since and it was about the torque limiter and how there was a problem with them on the 04, but after replacing the sparague it could only be the limiter.
There was no particular reason why I rang Dan I just wanted to see the price difference between the US and the UK but they were still expensive to buy new in the states thats when he said he had a used one but only covered 10hrs. So I had to have it, even with the express carriage it still worked out at roughly half price.
And like you say Boss, Dan is the man.

Regards

Sparks.

Taffy · Dec 29, 2007

ok steve

i'm thick. so you tell me what i need to know here!

we have a sprague bearing behind a circlip inside a gear. the gear has a toothed wheel sit within it as well. so where is this material that wears away?

i'll be glad to put it in the doc! all i could see on my sprague bearing was 'NW'.

while i'm here is there anyway you can tell early from late stuff just by looking?

regards

Taffy

sparks · Dec 29, 2007

Hi Taffy,

The torque limiter is the first drive pinion off the starter motor, once you remove the clutch cover it sits just above the clutch basket.
If you look at one side of it you will see a hexagon nut if you secure the larger toothed gear and use a torque wrench on it you can determine how worn it is by what pressure it takes before it slips.
The one I took out bearly made 5Nm.
If you undo the nut completely and pull both gears a part you can see the lining on one off the gears.
There is no identifying marks, but from a certain year they changed the teeth angel if not match to the right year the engine will make one hell of a row.

Regards

Steve.

Ady · Dec 29, 2007

That's interesting Steve
Do they all have the hexagon nut, used for testing ?
I didn't recall seeing one on my 03 ?

Taffy · Dec 29, 2007

steve

thanks for that! i did not know that! how did i miss it and whgo was the first to note it?

sheesh!

can anyone deliver me a photo of the gear so i can add it to the doc? i have no camera at present.

i'll get it in steve. i trust it is designed to stop the starter overworking the engine?

now all i have to do is workout the difference between that going and the sprague bearing? symptoms?

ady. it does have a nut in the middle of the face of the gear. it's a delicate little thing.

regards

Taffy

sparks · Dec 30, 2007

Ok Taffy i'll get some photos over to you, it is just like a sintered lining that wears, if it could be replaced by some means it would save quit a bit of money.
I don't know which year they came out but they did this so when the engine kicked back it stopped the teeth being ripped off the starter pinion.

Regards

Steve.

chilledspode · Dec 30, 2007

Hi Sparks,

Could it be that at cooler temps 20W oil is too thick ( I am assuming this torque limiter part is bathed in oil) and the thick oil reduces the friction generated by the 'sintered' surface, resulting in slippage and premature wear?

Like I say my bike has 25hrs on it and has always started first revolution on the button until the end of summer when the temperature cooled off.

I am thinking either increased oil viscosity as it relates to higher overall engine drag at lower temps or friction reduction in the torque limiter may have played a part in the early failure in my case.

Any thoughts on this, Steve?

Cheers

Mark

AUSBERG · Dec 30, 2007

sparks said:
Ok Taffy i'll get some photos over to you, it is just like a sintered lining that wears, if it could be replaced by some means it would save quit a bit of money.
I don't know which year they came out but they did this so when the engine kicked back it stopped the teeth being ripped off the starter pinion.

Regards

Steve.

Parts book lists it as an 03 part, and my 03 650 has one.
Takes 11nm to make mine slip, and I can say I never experienced any sprag or limiter slippage.

Taffy · Dec 31, 2007

try again ausberg with the light a bit different if you could?

also lay a coin next to it so folk can see how small it is please?

regards

taffy

AUSBERG · Dec 31, 2007

Taffy said:
try again ausberg with the light a bit different if you could?

also lay a coin next to it so folk can see how small it is please?

regards

taffy

Sorry Taff,
but thats as good as it gets :wink:

swedishsteel · Dec 31, 2007

chilledspode said:
Hi Sparks,

Could it be that at cooler temps 20W oil is too thick ( I am assuming this torque limiter part is bathed in oil) and the thick oil reduces the friction generated by the 'sintered' surface, resulting in slippage and premature wear?

Like I say my bike has 25hrs on it and has always started first revolution on the button until the end of summer when the temperature cooled off.

I am thinking either increased oil viscosity as it relates to higher overall engine drag at lower temps or friction reduction in the torque limiter may have played a part in the early failure in my case.

Any thoughts on this, Steve?

Cheers

Mark

My Husaberg dealer KEVA in sweden told me they always use ex 5w-50 putoline oil. and that will help a lot. so I think lighter viscosity make a diffrens. Hsb recommend 10w-50 oil. But i now many off you guys in US and AU were its little warmer use 20w-40, 20w-50 oil. so if you use this oil and have problem cold start it, try with a lighter oil, It can be a cheap fix,
And report back if the problem gets better with it.

and I wish everybody here a HAPPY NEW YEAR. with a new year that you can have much Husaberg riding time

Regards Patrik

Taffy · Dec 31, 2007

as p[atrik says....i would say 5/50 winter in cold climates and 10 in the summer. it's the first number you look for in the code BTW.

ausberg yer fired!

oh! i hear we can't find any other volunteers so you're re-instated again!

happy new year!

regards

Taffy

Search

Search

torque limiter

sparks

husabutt

sparks

BOSS

chilledspode

supertireguy

chilledspode

biglou_is

sparks

Taffy

sparks

Ady

Taffy

sparks

chilledspode

AUSBERG

Taffy

AUSBERG

swedishsteel

Taffy

Similar threads

Register CTA

Recent Discussions