 A quick tech note from Triumph
|
Joined: Feb 2007
Posts: 123
Adjunct
|
OP
Adjunct
Joined: Feb 2007
Posts: 123 |
Hey folks, this is more then likely in the wrong forum, but feel it will get more notice in the lounge. Just got this from Triumph today, and being the coils on the Bonnie line have been a problem over time, I wanted to pass it along.
Affected Models: Bonneville/T100, America, Speedmaster, Thruxton and Scrambler.
Should a bike (see above) demonstrate faulty ignition coil type symptoms (most commonly an engine misfire), please initially check and adjust the ignition pick-up (IPU) air gap (we recommend an air gap of 0.8mm).
Since changing the IPU air gap in production to 0.8mm, we have had no ignition coil warranty claims.
So, there's been a change in the spec on the air gap.
Also, for those of you who use an OE oil filter, the size of the filter has changed. The Triumph filter wrench no longer fits. A Honda filter wrench works perfectly. You'll know if you have the new filter by the box, which is now white, as the old filter was in a blue box.
Cheers
|
|
|
Re: A quick tech note from Triumph
|
Joined: Aug 2005
Posts: 2,525
Loquacious
|
|
Loquacious
Joined: Aug 2005
Posts: 2,525 |
Thanks for the heads up. Good Tips 
Erwin
05 America
|
|
|
Re: A quick tech note from Triumph
|
Joined: Jan 2005
Posts: 3,753
Loquacious
|
|
Loquacious
Joined: Jan 2005
Posts: 3,753 |
is the new filter bigger or smaller?
Frank
(Former)05 BA tbike pipes, ai removed, Freak, mikuni hsr 42's, 904, ported/polished head, 1mm oversized valves
NOW-2010 silver and black tbird
|
|
|
Re: A quick tech note from Triumph
|
Joined: Jan 2005
Posts: 18,825
"Lighten up, Francis."
|
|
"Lighten up, Francis."
Joined: Jan 2005
Posts: 18,825 |
(deletia)
Man my brain got fried this weekend. Nevermind.
Last edited by FriarJohn; 07/16/2007 9:30 PM.
|
|
|
Re: A quick tech note from Triumph
|
Joined: Jan 2005
Posts: 18,825
"Lighten up, Francis."
|
|
"Lighten up, Francis."
Joined: Jan 2005
Posts: 18,825 |
Let's go in another direction: How does one adjust the IPU gap? I don't go to my dealer anymore.
|
|
|
Re: A quick tech note from Triumph
|
Joined: Jan 2005
Posts: 9,223
Big Bore
|
|
Big Bore
Joined: Jan 2005
Posts: 9,223 |
Triumph manual, chapter 16, page 47 has the alignment procedure...
"Never underestimate the power of human stupidity" - Robert Heinlein
|
|
|
Re: A quick tech note from Triumph
|
Joined: Aug 2005
Posts: 2,726
Loquacious
|
|
Loquacious
Joined: Aug 2005
Posts: 2,726 |
Looks pretty easy to adjust. I've had my coils and CDI replaced on warranty and it's doing fine, but I may remove the alternator cover and check the clearance. The shop manual says 1.0 mm (+/- .02 mm). .2 mm is a significant change. BTW it's on page 16.46 in my manual (may be a later version).
Bob
2005 America, 904cc - sold. 2014 Trophy SE.
|
|
|
Re: A quick tech note from Triumph
|
Joined: Jan 2005
Posts: 18,825
"Lighten up, Francis."
|
|
"Lighten up, Francis."
Joined: Jan 2005
Posts: 18,825 |
Wish I had known about this when I had that cover off a month ago.
|
|
|
Re: A quick tech note from Triumph
|
Joined: Jun 2007
Posts: 6
Complete Newb
|
|
Complete Newb
Joined: Jun 2007
Posts: 6 |
Brilliant!!!!!!!Where's my Guiness? Jon 
Last edited by jonrob65; 07/17/2007 8:26 AM.
2007 Triumph Bonneville America
|
|
|
Re: A quick tech note from Triumph
|
Joined: May 2007
Posts: 6,432 Likes: 1
Worn Saddle
|
|
Worn Saddle
Joined: May 2007
Posts: 6,432 Likes: 1 |
Hey, speaking of the ignition pick-up what's the diagnosis on Phil's Raven?
A positive attitude may not solve all your problems, but it will annoy enough people to make it worth the effort. Herm Albright (1876 - 1944)
|
|
|
Re: A quick tech note from Triumph
|
Joined: Jan 2005
Posts: 9,223
Big Bore
|
|
Big Bore
Joined: Jan 2005
Posts: 9,223 |
Still working on that. I will update the thread
"Never underestimate the power of human stupidity" - Robert Heinlein
|
|
|
Re: A quick tech note from Triumph
|
Joined: Sep 2006
Posts: 1,457
Learned Hand
|
|
Learned Hand
Joined: Sep 2006
Posts: 1,457 |
At the bike races in Birmingham a fellow from D&D Cycles told me that reducing that gap fools the rev limiter somehow. They run a 1/2 mm gap, raises red line about 500 RPM.
|
|
|
Re: A quick tech note from Triumph
|
Joined: Dec 2005
Posts: 604
Adjunct
|
|
Adjunct
Joined: Dec 2005
Posts: 604 |
Good info.
But, the way that is written up sounds strange.
They seem to be saying that a single pickup coil that's marginal because of the gap can produce symptoms of a bad HT coil.
I'd expect the symptoms to be something like what Phil's getting, which is something entirely different.
This is based on my assumption that the pickup coil is supposed to emit identical pulses 90 degrees apart, and the CDI differentiates #1 from #2 based on interval timing.
Maybe that's a faulty assumption.
Since I've never paid much attention to the dogs on the rotor or the pickup itself, I suppose that could well be.
BMc (Not wanting to buy a gasket to find out)
Said Molly to James, that's a fine motorbike.
Richard Thompson
|
|
|
Re: A quick tech note from Triumph
|
Joined: Sep 2006
Posts: 1,457
Learned Hand
|
|
Learned Hand
Joined: Sep 2006
Posts: 1,457 |
Quote:
Not wanting to buy a gasket to find out
That's a wet cover?
|
|
|
Re: A quick tech note from Triumph
|
Joined: Jan 2005
Posts: 9,223
Big Bore
|
|
Big Bore
Joined: Jan 2005
Posts: 9,223 |
I may be buying a gasket and finding out!  I am hoping to eliminate the CDI as the source of my problem because anything else will be a heck of lot cheaper!!
"Never underestimate the power of human stupidity" - Robert Heinlein
|
|
|
Re: A quick tech note from Triumph
|
Joined: Dec 2005
Posts: 604
Adjunct
|
|
Adjunct
Joined: Dec 2005
Posts: 604 |
>That's a wet cover?
I think so, surprisingly.
It does use a gasket.
The only time I was ever in there I had the oil drained, but seem to remember some oil laying in the rotor.
Assuming I'm not loosing it and there is oil in there, I don't know what it's for.
Said Molly to James, that's a fine motorbike.
Richard Thompson
|
|
|
Re: A quick tech note from Triumph
|
Joined: Jan 2005
Posts: 18,825
"Lighten up, Francis."
|
|
"Lighten up, Francis."
Joined: Jan 2005
Posts: 18,825 |
Yes it's a wet cover. I had to pull it recently to set my camshaft timing. It was impossible (for me) to remove the cover without damaging the gasket. So make sure you order one up before fiddling with it, just in case.
|
|
|
Re: A quick tech note from Triumph
|
Joined: Mar 2006
Posts: 2,527
Loquacious
|
|
Loquacious
Joined: Mar 2006
Posts: 2,527 |
is the procedure for adjusting the IPU gap in the Haynes Manual?
"Proud to be an Infidel" ... "100% pure American Jingoist"
|
|
|
Re: A quick tech note from Triumph
|
Joined: Jan 2005
Posts: 9,223
Big Bore
|
|
Big Bore
Joined: Jan 2005
Posts: 9,223 |
In chapter 4, section 4 (Pick-up coil, pages 4-3 & 4-4) is the procedure. Interesting is the spec: 0.8 - 1.2 mm Another thing I found in chapter 8, section 30 (Alternator rotor and stator, page 8-23) is that they say you do not have to drain the oil if the bike is on the sidestand when removing the alternator cover. They do caution to be ready to catch residual oil (they do not qualify that! )
"Never underestimate the power of human stupidity" - Robert Heinlein
|
|
|
Re: A quick tech note from Triumph
|
Joined: Apr 2005
Posts: 582
Adjunct
|
|
Adjunct
Joined: Apr 2005
Posts: 582 |
definately could have used this info a couple of months ago when I had it apart for the the shim adjustment. Because she has been running wacky lately- It'll cut out I'll turn off the key , turn it back on & right back to life. I've also had the single cylinder bike. If this fixes that I'll certainly sacrifice a gasket.
"Got the wind in my face the road goes on for miles...."
|
|
|
Re: A quick tech note from Triumph
|
Joined: Jan 2005
Posts: 9,223
Big Bore
|
|
Big Bore
Joined: Jan 2005
Posts: 9,223 |
Quote:
It'll cut out I'll turn off the key , turn it back on & right back to life.
My exact symptoms Mike. Did you ever get yours fixed? I am waiting on Matt's spare CDI (should get here today) so I can focus on or eliminate the CDI...
"Never underestimate the power of human stupidity" - Robert Heinlein
|
|
|
Re: A quick tech note from Triumph
|
Joined: Jan 2005
Posts: 2,297
Oil Expert
|
|
Oil Expert
Joined: Jan 2005
Posts: 2,297 |
Quote:
Quote:
It'll cut out I'll turn off the key , turn it back on & right back to life.
My exact symptoms Mike. Did you ever get yours fixed? I am waiting on Matt's spare CDI (should get here today) so I can focus on or eliminate the CDI...
Happened to me last night. Chy led me to this thread. When it happened with my Mikuni setup, it was air in the fuel line. Not much chance of that now back to stock carbs. Was near the end of a 160 mile run and bam, no power, bike cut right out at 45 mph. Pulled over, turned the key, back to life. Didn't happen again the last 20 miles.
In Between the Dark and the Light..
|
|
|
Re: A quick tech note from Triumph
|
Joined: Jan 2005
Posts: 8,639 Likes: 3
Old Hand
|
|
Old Hand
Joined: Jan 2005
Posts: 8,639 Likes: 3 |
Quote:
Good info.
But, the way that is written up sounds strange.
They seem to be saying that a single pickup coil that's marginal because of the gap can produce symptoms of a bad HT coil.
Yup. There are 2 trigger tabs on the alternator rotor, 1 for each cylinder. Both coils are fired as each one goes by the sensor, which is why the 360 degree engine with a single tab can rev much faster when the rev limit is changed.
They don't say anything bout it in the manual, but I suspect it would be a good idea to check the gap at both tabs. If there is a serious difference, it would probably be a good thing to shave down the highest tab to match the lowest one.
Let's hope there's intelligent life somewhere in space 'cause it's buggar all down here. -- Monte Python
|
|
|
Re: A quick tech note from Triumph
|
Joined: Jan 2005
Posts: 9,223
Big Bore
|
|
Big Bore
Joined: Jan 2005
Posts: 9,223 |
Quote:
There are 2 trigger tabs on the alternator rotor
Uh, I was just in there the other day GB. Mine has four tabs! 
"Never underestimate the power of human stupidity" - Robert Heinlein
|
|
|
Re: A quick tech note from Triumph
|
Joined: Jan 2005
Posts: 11,124 Likes: 13
Should be Riding
|
|
Should be Riding
Joined: Jan 2005
Posts: 11,124 Likes: 13 |
 Wasted spark
Blowing gravel off rural roads
|
|
|
Re: A quick tech note from Triumph
|
Joined: Jan 2005
Posts: 9,223
Big Bore
|
|
Big Bore
Joined: Jan 2005
Posts: 9,223 |
Exactly!!  btw, you were able to get the cover off without removing the peg bracket?
"Never underestimate the power of human stupidity" - Robert Heinlein
|
|
|
Re: A quick tech note from Triumph
|
Joined: Jan 2005
Posts: 4,072 Likes: 80
Loquacious
|
|
Loquacious
Joined: Jan 2005
Posts: 4,072 Likes: 80 |
Quote:
btw, you were able to get the cover off without removing the peg bracket?
Just remove the four bolts from the foot control bar and let it drop out of the way...it gives you just enough clearance.
|
|
|
Re: A quick tech note from Triumph
|
Joined: Jan 2005
Posts: 9,223
Big Bore
|
|
Big Bore
Joined: Jan 2005
Posts: 9,223 |
Duh, I should have thought of that! That's why I am looking for the hanger bolts... 
"Never underestimate the power of human stupidity" - Robert Heinlein
|
|
|
Re: A quick tech note from Triumph
|
Joined: Jan 2005
Posts: 11,124 Likes: 13
Should be Riding
|
|
Should be Riding
Joined: Jan 2005
Posts: 11,124 Likes: 13 |
Just for the record, the bolt that holds the right peg bracket will strip out.
Blowing gravel off rural roads
|
|
|
|
|
