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Author Topic: Breva 1100 / Norge Valve Adjustment Specs  (Read 2364 times)
Kev m
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« on: March 01, 2009, 01:41:47 PM »
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I'm sorry to ask such a basic question, but I only do this once a year or so, and my notes are confusing me.

I can't find specs in the owner's manual.

Guzziology basically says all big twins are in: 0.004" in. (0.10mm) / ex: 0.006" (0.15mm) if you're following world specs.

The PDF Workshop manual (in English) agrees (which makes me wonder if it was meant for the US or just an English translation of the world spec guide).

And I'd have followed those specs (as I do on my Jackal), if I hadn't found a note on my service sheets that I wrote which claims the EPA label (which I can't find right now, was it on the seat?) said THOSE figures were the tighter US spec, and that there are looser world specs of In: 0.0059" (0.15mm) / Ex: 0.0078" (0.20mm).

My notes seem REALLY specific with the measurements.

I was going to ignore them and follow Guzziology and the PDF manual, until I measured the first intake valve and realized it was set way too loose for the 004" spec, which got me thinking maybe I followed the 0.006" spec.

What do you guys use?

Any idea where I pulled those other specs from?

Kev
« Last Edit: March 01, 2009, 01:51:25 PM by Kev m » Logged

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« Reply #1 on: March 01, 2009, 02:01:15 PM »
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Right in the middle of doing my Norge right now,(NO KIDDING) just got one side done and stopped for a beer break , A loose 004, tight 005 and a no go 006 for the intake, A loose 006, tight 007 and no go 008 for the exhaust. Service manual says 004 intake and 006 Exhaust.  All readings taken while pushing down on the push rod side of the rocker with my fingers.
I am using my top dead center indicator tool and it works!

http://wildguzzi.com/forum/index.php?topic=22839.0
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Kev m
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« Reply #2 on: March 01, 2009, 02:04:25 PM »
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Who needs a TDC indicator tool on these motors - you can SEE the top of the piston if you just shine a flashlight into the plug hole  Wink

Thanks for the sanity check...

I got the right cover off and I'll go with the .10/.15 (uhh 004" and 006") specs.

 Embarrassed
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« Reply #3 on: March 01, 2009, 02:46:25 PM »
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Kev you would not believe the meter defection with just the slightest pressure on the timing gear bolt with the socket wrench, beats the old straw in the plug hole and or my old eyes. Grin
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« Reply #4 on: March 01, 2009, 02:54:24 PM »
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For the 750 it's 0,15/0,20; and that's how I'm setting it.
Can't understand why US and EU specs could differ?
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« Reply #5 on: March 01, 2009, 02:56:39 PM »
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For the 750 it's 0,15/0,20; and that's how I'm setting it.
Can't understand why US and EU specs could differ?

Bunch of sissies over here want them quite, but they let every Cruiser there is run straight pipes.

Go figure?
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« Reply #6 on: March 01, 2009, 03:02:11 PM »
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Dan, I believe it, I just don't believe you need to be so precisely on TDC - you just have to NOT be on the lifted part of the cam. So although I check the timing marks, and peer into the plug bore at the piston, I'm not worried about a couple of degrees here or there.

Holt and Dean - it's not about noise, it's about emissions - NOx

Anyway, maybe that's where I got the .15/.20 measurments, maybe I was looking at something about the B750 instead of the B11 when I wrote that note?  Huh

Anyway, there's set at .10/15 now...

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« Reply #7 on: March 01, 2009, 03:49:22 PM »
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Dan, I believe it, I just don't believe you need to be so precisely on TDC - you just have to NOT be on the lifted part of the cam. So although I check the timing marks, and peer into the plug bore at the piston, I'm not worried about a couple of degrees here or there.

Holt and Dean - it's not about noise, it's about emissions - NOx

Anyway, maybe that's where I got the .15/.20 measurments, maybe I was looking at something about the B750 instead of the B11 when I wrote that note?  Huh

Anyway, there's set at .10/15 now...



V11 Sport/LeMans  shows .15mm/.20mm on some documents. 
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Rocker59 (aka Michael T.)
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Kev m
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« Reply #8 on: March 01, 2009, 04:59:55 PM »
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Dan, I believe it, I just don't believe you need to be so precisely on TDC - you just have to NOT be on the lifted part of the cam. So although I check the timing marks, and peer into the plug bore at the piston, I'm not worried about a couple of degrees here or there.

Holt and Dean - it's not about noise, it's about emissions - NOx

Anyway, maybe that's where I got the .15/.20 measurments, maybe I was looking at something about the B750 instead of the B11 when I wrote that note?  Huh

Anyway, there's set at .10/15 now...



V11 Sport/LeMans  shows .15mm/.20mm on some documents. 

Interesting - Guzziology doesn't seem to mention that either, unless I'm missing it...
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« Reply #9 on: March 01, 2009, 05:18:43 PM »
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Dan, I believe it, I just don't believe you need to be so precisely on TDC - you just have to NOT be on the lifted part of the cam. So although I check the timing marks, and peer into the plug bore at the piston, I'm not worried about a couple of degrees here or there.

Holt and Dean - it's not about noise, it's about emissions - NOx

Anyway, maybe that's where I got the .15/.20 measurments, maybe I was looking at something about the B750 instead of the B11 when I wrote that note?  Huh

Anyway, there's set at .10/15 now...



V11 Sport/LeMans  shows .15mm/.20mm on some documents. 

Interesting - Guzziology doesn't seem to mention that either, unless I'm missing it...

As usual...  Conflicting documents... 

The EPA sticker says .15/.20

The owners manual and the sevice manual conflict...  One suggests .10/.15...  The other .15/.20...
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Rocker59 (aka Michael T.)
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Kev m
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« Reply #10 on: March 01, 2009, 05:26:27 PM »
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Funny that the EPA was saying wider gaps on that (and maybe on the Breva if my notes were correct - I can't find the EPA sticker now, I'm guessing it was on the OEM seat which is packed away right now).

I say funny because on the Cali's the EPA made them go the other direction (i.e. tighter) for emissions purposes.

Weird, as usual,

Kev
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Kev m
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« Reply #11 on: March 01, 2009, 07:25:33 PM »
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Well, I guess as soon as that new case of Amsoil arrives tomorrow and I refill the crankcase (and install the new oil filter) the old girl will be ready for another year!

Life is good!

Kev
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« Reply #12 on: March 02, 2009, 04:34:06 PM »
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Dan, I believe it, I just don't believe you need to be so precisely on TDC - you just have to NOT be on the lifted part of the cam. So although I check the timing marks, and peer into the plug bore at the piston, I'm not worried about a couple of degrees here or there.

Agreed.  For ignition timing, yes.  For tappet adjustment, no.

Graham
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