Engine to frame torque |
Post Reply |
Author | |
Simmoto
Senior Member Joined: 29 Jul 2017 Location: Aberdeenshire Status: Offline Points: 261 |
Post Options
Thanks(0)
Posted: 07 Mar 2018 at 12:47 |
I'm getting a bit nervous torquing the engine to frame nuts to the 78 Nm (58 ft/lbs) value I took from Gregory Bender's site. Are the spacers just pushing against the alloy casting at the front of the engine? What torque have you used on your Loop?
Thanks |
|
Dave P.
Senior Member Joined: 12 Jan 2015 Location: Northants Status: Offline Points: 5573 |
Post Options
Thanks(0)
|
I just do them up tight with a socket and a 12" ratchet spanner.A combination spanner secures the other end.That's how technical I get.They've never come loose. |
|
TO LIVE OUTSIDE THE LAW YOU MUST BE HONEST.
1971 V7 Special. 1972 850GT. 1970 T120 Bonnie. 2009 500 Bullet. |
|
Dave P.
Senior Member Joined: 12 Jan 2015 Location: Northants Status: Offline Points: 5573 |
Post Options
Thanks(0)
|
Out of interest I've just been and checked.The 750 was at around 45 ft/lbs.Now 50 ft/lbs.The 850 clicked the torque wrench without the nut moving at 58 ft/lbs.So maybe it's even tighter.I've never disturbed the fixings on the 850.
|
|
TO LIVE OUTSIDE THE LAW YOU MUST BE HONEST.
1971 V7 Special. 1972 850GT. 1970 T120 Bonnie. 2009 500 Bullet. |
|
Simmoto
Senior Member Joined: 29 Jul 2017 Location: Aberdeenshire Status: Offline Points: 261 |
Post Options
Thanks(0)
|
Thanks Dave! Bolstered by your experience I had the confidence to give them a good nip somewhere close to 78Nm.
|
|
Simmoto
Senior Member Joined: 29 Jul 2017 Location: Aberdeenshire Status: Offline Points: 261 |
Post Options
Thanks(0)
|
Hmmm. well this one was maybe too tight!
|
|
Jerry atric
Senior Member Joined: 24 Nov 2014 Location: Wiltshire Status: Offline Points: 3367 |
Post Options
Thanks(0)
|
Blimey!
|
|
jpc
Senior Member Joined: 06 Oct 2016 Location: Belgium Status: Offline Points: 651 |
Post Options
Thanks(0)
|
The thread looks so ugly, might be a good thing it broke
|
|
Dave P.
Senior Member Joined: 12 Jan 2015 Location: Northants Status: Offline Points: 5573 |
Post Options
Thanks(0)
|
That nut may have been over tightened in the past, but I would have expected it to strip rather than split.Also, do we know if it is an original quality nut? What are the threads like on the bolt?
|
|
TO LIVE OUTSIDE THE LAW YOU MUST BE HONEST.
1971 V7 Special. 1972 850GT. 1970 T120 Bonnie. 2009 500 Bullet. |
|
iansoady
Senior Member Joined: 23 Jul 2017 Location: Redditch Status: Offline Points: 2402 |
Post Options
Thanks(0)
|
In my experience it's usually the male thread that strips rather than the female (assuming similar materials) as there's more metal in the female.
|
|
Ian
1952 Norton ES2 1986 Honda XBR500 1958-ish Greeves/Triumph in progress |
|
Dave P.
Senior Member Joined: 12 Jan 2015 Location: Northants Status: Offline Points: 5573 |
Post Options
Thanks(0)
|
True...that's why I wondered about the quality of the nut.
|
|
TO LIVE OUTSIDE THE LAW YOU MUST BE HONEST.
1971 V7 Special. 1972 850GT. 1970 T120 Bonnie. 2009 500 Bullet. |
|
iansoady
Senior Member Joined: 23 Jul 2017 Location: Redditch Status: Offline Points: 2402 |
Post Options
Thanks(0)
|
Yes, I don't think I've ever had one split like that (unless using a nut splitter.....)
|
|
Ian
1952 Norton ES2 1986 Honda XBR500 1958-ish Greeves/Triumph in progress |
|
Simmoto
Senior Member Joined: 29 Jul 2017 Location: Aberdeenshire Status: Offline Points: 261 |
Post Options
Thanks(0)
|
First time I've seen it but interestingly someone on the Guzzi forum did the same thing on the same day (don't know what bike). It looks like an original nut to me but can't be sure. Stuck one on from my Bimmer for the moment and have ordered new. I guess after 45 years anything can happen...
|
|
Jerry atric
Senior Member Joined: 24 Nov 2014 Location: Wiltshire Status: Offline Points: 3367 |
Post Options
Thanks(0)
|
Could it be that a PO had indeed used a splitter on it and then cheekily put it back on and you didn't spot it when dismantling. The clue would be, was it very tight when you undid it? As we all know, these can be notorious for corrosion and not undoing. Just a thought
|
|
Simmoto
Senior Member Joined: 29 Jul 2017 Location: Aberdeenshire Status: Offline Points: 261 |
Post Options
Thanks(0)
|
I guess that's possible, if I could find it I could take a look at the nut but fear its deep in the recycling bin...
|
|
Post Reply | |
Tweet
|
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |