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Oh! Head stud snapped

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Paul-l View Drop Down
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    Posted: 05 Dec 2018 at 22:57
not me honest!
I was just taking the barrels off to get them replated for luck (starting to look a bit odd at the top) and found a head nut with the top of the stud loose under the rocker cover.
So the question is: do I replace all of the studs just in case ? 
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Jerry atric View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jerry atric Quote  Post ReplyReply Direct Link To This Post Posted: 06 Dec 2018 at 08:26
For what it involves as you have it stripped, I would. You don't know if the same 'torque wrench' may have been used used on the others.
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Mike H View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mike H Quote  Post ReplyReply Direct Link To This Post Posted: 06 Dec 2018 at 11:36
Once took down the RH side of my 850 LM becasue it was making excessive (LOUD) tappet rattle. Turned out I'd totally c0cked up setting valve clearances (not helped by the 'D' and 'S' stamps on the flywheel being the wrong way round - I'm not making that up Shocked ..! )

Not a total waste of time as I found one of the stud nuts was cross-threaded, so new stud and nut. Stud came unscrewed with mole grips.




"Chicken nuggets don't dance on a Tuesday."
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Paul-l View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Paul-l Quote  Post ReplyReply Direct Link To This Post Posted: 06 Dec 2018 at 18:55
that's kind of what I thought Jerry, but who has new ones in stock?
In Europe preferably just cause I'm fed up with the £ 8 fee for processing the duty from overseas.

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Brian UK View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 06 Dec 2018 at 22:26
It's a high tensile stud, not rocket science for an engineering shop to make. Check the length and diameter ans search for that.

And anyway, might be exactly the same item as fitted to later engines.
Brian.

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Brian UK View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 06 Dec 2018 at 22:36
Worth checking the parts lists to see what might be the same.
Brian.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Amboman Quote  Post ReplyReply Direct Link To This Post Posted: 07 Dec 2018 at 14:47
Guzzi parts nos. 1202 1700 (long) and 1202 1800 (short). I have some NOS long ones, not sure about short ones though. Could send as a "gift" so you wouldn't have to pay any duty fee.

I have good used of both lengths.

Edit: Looked and I have a small stock of NOS in both lengths.


Edited by Amboman - 07 Dec 2018 at 22:06
Charlie
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http://www.AntietamClassicCycle.com
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Paul-l View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Paul-l Quote  Post ReplyReply Direct Link To This Post Posted: 08 Dec 2018 at 08:16
Thanks Charlie,  I've found that Stein list part number 976031 as a replacement for the long bolts, So have gone with them.
I was torn between the new and old, but given I needed to use my 2ft long-bar to get the nuts undone I'm going to replace the lot, and with new.
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Amboman View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Amboman Quote  Post ReplyReply Direct Link To This Post Posted: 08 Dec 2018 at 14:09
That stud looks a bit different, hopefully it will work okay.
Charlie
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Paul-l View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Paul-l Quote  Post ReplyReply Direct Link To This Post Posted: 08 Dec 2018 at 18:14
This is a whole new learning experience for me! Finding parts I mean from suppliers I'd never heard of untill I got a Guzzi
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Brian UK View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 08 Dec 2018 at 20:38
Originally posted by Amboman Amboman wrote:

Guzzi parts nos. 1202 1700 (long) and 1202 1800 (short).
Same part numbers on the 1000 engines and 1100 engines including the Griso etc.

The 1200 2 valves have a different part number.

Did you try Gutsibits?
Brian.

Better 5 minutes late in this world than years early in the next.
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