Author Topic: Valve rocker clearance .020 OVER nominal - Impending doom or user error ?  (Read 3820 times)

Offline ken farr

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Re: Valve rocker clearance .020 OVER nominal - Impending doom or user error ?
« Reply #30 on: October 10, 2017, 11:25:23 AM »
Impending doom.  Never seen a more clear cut case.

To save you the heart break and inconvenience of having the machine grenade on the
ride to SandyEggo, I will let you send me the bike so I can properly dispose of this potential
time bomb.

No need to thank me, it's what I do.

kjf
« Last Edit: October 10, 2017, 11:29:24 AM by ken farr »
ken farr
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Offline normzone

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Re: Valve rocker clearance .020 OVER nominal - Impending doom or user error ?
« Reply #31 on: October 10, 2017, 11:38:41 AM »
It's the generosity and compassion of people such as yourself that keep me coming back to this forum.

 
That's the combustion chamber of the turbo shaft. It is supposed to be on fire. You just don't usually see it but the case and fairing fell off.

Offline Kiwi_Roy

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Re: Valve rocker clearance .020 OVER nominal - Impending doom or user error ?
« Reply #32 on: October 10, 2017, 12:16:05 PM »
Go for it, [Ncdan] - it's simple. I almost always get it right. The trick to remember is that it's better to get them too loose than too tight.

Not as loose as I did, of course. But the bike was still running great.

It's surprising how much gap you can have without a lot of noise.
I did a routine check on my Lario, when I took the valve cover off one of the screws fell out on the ground.
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Offline normzone

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Re: Valve rocker clearance .020 OVER nominal - Impending doom or user error ?
« Reply #33 on: October 10, 2017, 12:37:26 PM »
    Impending doom.  Never seen a more clear cut case.

To save you the heart break and inconvenience of having the machine grenade on the
ride to SandyEggo, I will let you send me the bike so I can properly dispose of this potential
time bomb.

No need to thank me, it's what I do.  kjf   

Regarding the delivery of the bike in question.  They said payment should be forwarded to you soon.  You are to contact me via W.G. with your complete name and address so I can pick the bike up.  Please have all paper work in order.  The transfer will go smoothly and without interruption. All I require is your bank information and account datas to instigate shipping process
That's the combustion chamber of the turbo shaft. It is supposed to be on fire. You just don't usually see it but the case and fairing fell off.

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Re: Valve rocker clearance .020 OVER nominal - Impending doom or user error ?
« Reply #33 on: October 10, 2017, 12:37:26 PM »

Bonaventure

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Re: Valve rocker clearance .020 OVER nominal - Impending doom or user error ?
« Reply #34 on: October 10, 2017, 04:16:17 PM »
Is anyone know the torque spec for tightening of the nuts on the valve adjusters ?


Offline rodekyll

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Re: Valve rocker clearance .020 OVER nominal - Impending doom or user error ?
« Reply #35 on: October 10, 2017, 04:34:18 PM »
Is anyone know the torque spec for tightening of the nuts on the valve adjusters ?

Nicensnug

Offline Kiwi_Roy

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Re: Valve rocker clearance .020 OVER nominal - Impending doom or user error ?
« Reply #36 on: October 10, 2017, 07:45:28 PM »
Until they strip then loosen a bit


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Offline Chuck in Indiana

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Re: Valve rocker clearance .020 OVER nominal - Impending doom or user error ?
« Reply #37 on: October 10, 2017, 08:12:30 PM »
BMWs use Gutentight..
Seriously, it's not fussy. The only time I stripped one, I was foolishly using a torqe wrench on a hotrod engine I was building. It was either the wrong spec.. or it coulda  been the drugs. :rolleyes:
At any rate, it was a learning experience for me.
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elvisboy77

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Re: Valve rocker clearance .020 OVER nominal - Impending doom or user error ?
« Reply #38 on: October 10, 2017, 09:18:20 PM »
Well, I figured out where the 20K miles came from at least.

That was the last time the heads were torqued.

Either you set it wrong last time or you have a lot of wear.  Seems simple enough to check, ride it 1k miles as others have suggested and recheck it.

Good luck and let us know what you find, interesting question.

Offline SmithSwede

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Re: Valve rocker clearance .020 OVER nominal - Impending doom or user error ?
« Reply #39 on: October 10, 2017, 11:41:34 PM »
6-8 foot pounds.  Probably better to do it by feel.   I don't think they need to be super tight. 
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Offline rodekyll

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Re: Valve rocker clearance .020 OVER nominal - Impending doom or user error ?
« Reply #40 on: October 11, 2017, 01:11:02 AM »
6-8 foot pounds.  Probably better to do it by feel.   I don't think they need to be super tight.

That's what I said.

Offline ITSec

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Re: Valve rocker clearance .020 OVER nominal - Impending doom or user error ?
« Reply #41 on: October 11, 2017, 02:08:58 AM »
That's what I said.

That's why we all love you!  :grin:
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