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Torquing Heads

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italianmotor View Drop Down
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    Posted: 26 Apr 2017 at 07:57
I've had to do a bit of work on the cylinder head of my Lodola 235 and am at the stage that I can put it back on. I can't a reference in the workshop manual for what the torque settings should be - is there some kind of formula that exists to work out what they should be? Or does anyone know what they are for a Lodola? Thanks for any advice.
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Jezguz View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jezguz Quote  Post ReplyReply Direct Link To This Post Posted: 26 Apr 2017 at 09:23
Have a look on here, http://www.wtools.com.tw/STANDARD-BOLT-TIGHTENING-TORQUE.shtml, it should give you a ball park figure to work to.
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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: 26 Apr 2017 at 10:04
Remember the stud is threaded into an alloy casting, so don't entirely trust those generic tables. They are often just for a nut/bolt combination, all of the same material.
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italianmotor View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote italianmotor Quote  Post ReplyReply Direct Link To This Post Posted: 26 Apr 2017 at 10:42
Thanks - I just found a reference to it on an Italian Guzzi forum, and someone on there who seems pretty knowledgeable says they didn't use torque settings in thiose days, hence the reason they're not in the Lodola manuals but just did them up tight by hand..
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ken-Guzzibear Quote  Post ReplyReply Direct Link To This Post Posted: 26 Apr 2017 at 11:18
There is a guide in the yellow factory V1000 manual I think it is posted in FAQ's
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jerry atric Quote  Post ReplyReply Direct Link To This Post Posted: 26 Apr 2017 at 12:21
Originally posted by italianmotor italianmotor wrote:

Thanks - I just found a reference to it on an Italian Guzzi forum, and someone on there who seems pretty knowledgeable says they didn't use torque settings in thiose days, hence the reason they're not in the Lodola manuals but just did them up tight by hand..

That will be right. By the time a factory worker was tightening engine nuts he would have done several years apprenticeship and know the "feel" of the correct torque. My advice would be to use a 3/8 drive socket with a smaller ratchet handle to give you more feedback, if you see what I mean. A 1/2 inch drive handle gives you a lot of leverage. It'll need tweaking after a few miles anyway won't it so you will be able to stop any nascent oil leak. Just my opinion.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 26 Apr 2017 at 13:01
Originally posted by italianmotor italianmotor wrote:

Thanks - I just found a reference to it on an Italian Guzzi forum, and someone on there who seems pretty knowledgeable says they didn't use torque settings in thiose days, hence the reason they're not in the Lodola manuals but just did them up tight by hand..
 
That's what we all used to do before the world became anal about exact settings.
The important thing is that all head bolts are done up the same amount.
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Rollo View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rollo Quote  Post ReplyReply Direct Link To This Post Posted: 26 Apr 2017 at 13:33
As for Guzzi literature on this subject there seems to be so much confusion that I have not used s torque wrench at all to be on the safe side. Quite liberating after several years trying to keep to a listed torque on other stuff. A torque wrench has its place but robs you of feel and things can easily be over tightened.
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italianmotor View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote italianmotor Quote  Post ReplyReply Direct Link To This Post Posted: 26 Apr 2017 at 17:50
Thanks for all the advice, I like the 3/8 socket idea too Mr Atric, I think I still have enough feel in my hands to be able to judge it ok, and like you say, will need doing after a 100 miles or so.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote kateguy Quote  Post ReplyReply Direct Link To This Post Posted: 26 Apr 2017 at 19:16
Torquing heads.....psycho rocker....
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Post Options Post Options   Thanks (0) Thanks(0)   Quote iceni Quote  Post ReplyReply Direct Link To This Post Posted: 26 Apr 2017 at 19:24
With apologies to Kate and other ladies who may frequent these pages, my old foreman, a bluff no nonsense gentleman worked on the premise that a nut or bolt was tight enough when the expended effort resulted in a fart
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italianmotor View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote italianmotor Quote  Post ReplyReply Direct Link To This Post Posted: 26 Apr 2017 at 19:38
Do you see what I did there? My Lodola's been on the 'Road to Nowhere' of recent..

Originally posted by kateguy kateguy wrote:

Torquing heads.....psycho rocker....
Guzzi lover doing my own thing: http://www.italianmotormagazine.com
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kateguy View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote kateguy Quote  Post ReplyReply Direct Link To This Post Posted: 26 Apr 2017 at 20:01
Q'est ce cest....
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dukedesmo Quote  Post ReplyReply Direct Link To This Post Posted: 26 Apr 2017 at 21:57
Originally posted by iceni iceni wrote:

With apologies to Kate and other ladies who may frequent these pages, my old foreman, a bluff no nonsense gentleman worked on the premise that a nut or bolt was tight enough when the expended effort resulted in a fart

Or, tighten it 'till it starts to shear and then back it off a quarter of a turn... Ermm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 26 Apr 2017 at 22:42
Originally posted by iceni iceni wrote:

With apologies to Kate and other ladies who may frequent these pages, my old foreman, a bluff no nonsense gentleman worked on the premise that a nut or bolt was tight enough when the expended effort resulted in a fart
No there are two types of tight'
Tight and till you fart tight.
Brian.

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