revtothelimit - motorbike forum

Posted: **Mon Mar 08, 2021 3:29 pm**

Mussels wrote: Mon Mar 08, 2021 7:58 am Meghan Merkle, I'm bored of it all already.
And whoever posted in the jokes thread about Ian Wright dressed as Mrs Doubtfire, that's all I can see now when I look at Oprah.

I thought Orca Windbag looked like Ronnie Corbett in blackface... and maybe the comment about skin tone was because they didn't want another pale faced ginger in the family

Posted: **Mon Mar 08, 2021 3:54 pm**

mangocrazy wrote: Mon Mar 08, 2021 2:50 pm Torque wrenchs

Torque wrenches mean slightly less than bugger all when you're dealing with a second hand bolt in a second hand hole with X years of gunk and corrosion in said hole. "FT" is sufficient for a wheel, as long as is doesn't come off you're basically fine

Not to mention the fact your domestic torque wrench is probably +/- 25% on accuracy anyway.

As for getting them off at the roadside...my bosses old Porsche had centre lock wheels that had a special BFO socket under the bonnet. All very well and good, except the wheels are tightened to 450Nm, so your RAC man probably ain't getting them off

Posted: **Mon Mar 08, 2021 3:57 pm**

Mr. Dazzle wrote: Mon Mar 08, 2021 3:54 pm
mangocrazy wrote: Mon Mar 08, 2021 2:50 pm Torque wrenchs
Torque wrenches mean slightly less than bugger all when you're dealing with a second hand bolt in a second hand hole with X years of gunk and corrosion in said hole. "FT" is sufficient for a wheel, as long as is doesn't come off you're basically fine Not to mention the fact your domestic torque wrench is probably +/- 25% on accuracy anyway.

As for getting them off at the roadside...my bosses old Porsche had centre lock wheels that had a special BFO socket under the bonnet. All very well and good, except the wheels are tightened to 450Nm, so your RAC man probably ain't getting them off

Assuming the Porche centre nuts were correctly left & right threaded then why on earth does it need to be done up that tight?

Posted: **Mon Mar 08, 2021 4:00 pm**

Well bolts are supposed to squish things together, the wheel primarily transmits torque to the hub via friction...that's the intent anyway. The "lumps" on the surface are back up.

So 1/5th the number of bolts means five times tighter, roughly speaking.

Posted: **Mon Mar 08, 2021 4:19 pm**

Mr. Dazzle wrote: Mon Mar 08, 2021 3:54 pm Torque wrenches mean slightly less than bugger all when you're dealing with a second hand bolt in a second hand hole with X years of gunk and corrosion in said hole. "FT" is sufficient for a wheel, as long as is doesn't come off you're basically fine Not to mention the fact your domestic torque wrench is probably +/- 25% on accuracy anyway.

Torque wrenches certainly mean less than bugger all when you've previously done the bolt up with a windy gun, which was the main point of my post.

And I'm happy to use a torque wrench as an indicator of FT, even if it is a percent or two +/-.

Mr. Dazzle wrote: Mon Mar 08, 2021 3:54 pm As for getting them off at the roadside...my bosses old Porsche had centre lock wheels that had a special BFO socket under the bonnet. All very well and good, except the wheels are tightened to 450Nm, so your RAC man probably ain't getting them off

Madness. But as I don't have a Porsche (and can't imagine I ever will) then it's all a bit moot. I'll stick with my breaker bar

Posted: **Mon Mar 08, 2021 4:28 pm**

It's easy enough to test a torque wrench at home, all you need is a known weight, a ruler, a length of rope and a suitable pivot point.

Posted: **Mon Mar 08, 2021 4:29 pm**

cheb wrote: Mon Mar 08, 2021 4:28 pm It's easy enough to test a torque wrench at home, all you need is a known weight, a ruler, a length of rope and a suitable pivot point.

And the inclination to do it

Posted: **Mon Mar 08, 2021 4:40 pm**

It's much easier to test it horizontally, otherwise you have to allow for the change in leverage length.

Posted: **Mon Mar 08, 2021 5:02 pm**

Yorick wrote: Mon Mar 08, 2021 9:56 am
gremlin wrote: Mon Mar 08, 2021 9:29 am
Mussels wrote: Mon Mar 08, 2021 7:58 am Meghan Merkle, I'm bored of it all already.
How arrogant must a person be to assume that the rest of the world is interested in the petty trivia of their private lives...?
TBF, they need to stand on their own feet now without palace funding. This interview will earn them enough not to need UK money.

They weren’t paid for the interview, but it will allow them to establish a proper foothold in the US media where they can have their own agency and not have to rely on the approval of the UK tabloids.

Posted: **Mon Mar 08, 2021 5:12 pm**

JamJar wrote: Mon Mar 08, 2021 5:02 pm
Yorick wrote: Mon Mar 08, 2021 9:56 am
gremlin wrote: Mon Mar 08, 2021 9:29 am

How arrogant must a person be to assume that the rest of the world is interested in the petty trivia of their private lives...?
TBF, they need to stand on their own feet now without palace funding. This interview will earn them enough not to need UK money.
They weren’t paid for the interview, but it will allow them to establish a proper foothold in the US media where they can have their own agency and not have to rely on the approval of the UK tabloids.

They're basically living on the money left to Harry by Diana.

Posted: **Mon Mar 08, 2021 5:20 pm**

Noggin wrote: Mon Mar 08, 2021 1:49 pm Migraines. Sodding migraines!!!

I haven't had one for months and omnths - I can't actually remember the last one!!

This one is winding up to be a doozy!! I can just about seeing out of one eye now the right one has zero vision cos of the lines wobbling across it. The left I can still see out of a bit. (Tis lucky I can touch type - mostly!!)

Sooo - physio in 45 mins and a french lesson at 18:00. Here's hoping that the historic way of solving it works today - although I have no ibuprofen, so have had to substitute something else! With taking the right meds the lines go away and the headache doesn't really arrive. Without, thelines eventually go away and then the headache is Biiiiiigg

If I'd ever worked out what causes them it wouldn't be so bad, but there's never been rhyme or reason for them arriving. I could get rid a bit quicker with a serious junk food sess - chocolate, sausage rolls, cake stuff like that. Don't have any here right now Buggeration!!!!

A colleague of mine made me a sandwich with smoked pork roll homemade by her Romanian grandma.

Lovely it was but an hour later I got the visual disturbance, no headache, lasted about 30 mins. 10 mins later another bout hit me, never had 2 in a row before.

When I do get the headache the only thing that works is sumatriptan.

Posted: **Mon Mar 08, 2021 6:11 pm**

Gregor wrote: Mon Mar 08, 2021 5:20 pm A colleague of mine made me a sandwich with smoked pork roll homemade by her Romanian grandma.

Lovely it was but an hour later I got the visual disturbance, no headache, lasted about 30 mins. 10 mins later another bout hit me, never had 2 in a row before.

When I do get the headache the only thing that works is sumatriptan.

I just usually get the visual disturbances and I’ve only had a double on like that twice. After I get them I often feel sort of detached and out of sync with my surroundings, after the double one I felt like that for days!

Posted: **Mon Mar 08, 2021 7:43 pm**

Gregor wrote: Mon Mar 08, 2021 5:20 pm
Noggin wrote: Mon Mar 08, 2021 1:49 pm Migraines. Sodding migraines!!!

I haven't had one for months and omnths - I can't actually remember the last one!!

This one is winding up to be a doozy!! I can just about seeing out of one eye now the right one has zero vision cos of the lines wobbling across it. The left I can still see out of a bit. (Tis lucky I can touch type - mostly!!)

Sooo - physio in 45 mins and a french lesson at 18:00. Here's hoping that the historic way of solving it works today - although I have no ibuprofen, so have had to substitute something else! With taking the right meds the lines go away and the headache doesn't really arrive. Without, thelines eventually go away and then the headache is Biiiiiigg

If I'd ever worked out what causes them it wouldn't be so bad, but there's never been rhyme or reason for them arriving. I could get rid a bit quicker with a serious junk food sess - chocolate, sausage rolls, cake stuff like that. Don't have any here right now Buggeration!!!!
A colleague of mine made me a sandwich with smoked pork roll homemade by her Romanian grandma.

Lovely it was but an hour later I got the visual disturbance, no headache, lasted about 30 mins. 10 mins later another bout hit me, never had 2 in a row before.

When I do get the headache the only thing that works is sumatriptan.

Bloody hell - all that from a smoked pork roll

Damn

I don't know what sumatriptan is. I used to take Migraleve in the uk then my mother (who also used it) worked out that the ingredients were basically just paracetamol and ibuprofen (may have changed, this was a long time ago!!). So I used to always have a couple of doses of both in my bag, just in case. But as it's been soooooo long, I'd kinda forgotten about them

JamJar wrote: Mon Mar 08, 2021 6:11 pm
Gregor wrote: Mon Mar 08, 2021 5:20 pm A colleague of mine made me a sandwich with smoked pork roll homemade by her Romanian grandma.

Lovely it was but an hour later I got the visual disturbance, no headache, lasted about 30 mins. 10 mins later another bout hit me, never had 2 in a row before.

When I do get the headache the only thing that works is sumatriptan.
I just usually get the visual disturbances and I’ve only had a double on like that twice. After I get them I often feel sort of detached and out of sync with my surroundings, after the double one I felt like that for days!

I'm lucky I've never had a double, but I feel like that for a few hours after a 'normal' one!!

inewham wrote: Mon Mar 08, 2021 6:42 pm
Noggin wrote: Mon Mar 08, 2021 3:20 pm ...
I can normally sort out the visual disturbance with a combination of paracetamol and ibuprofen (the most you are allowed to take in one hit) and generally this prevents the headache too. I suspect the ibuprofen is necessary as I only had the paracetamol and Acupan (which is what I had in rehab - one of the few painkillers that worked) - although it sorted the eyes, I've got a headache 'thinking' about smacking my brain but it's dealable with. I'm a bit woozy tho Had to cancel the French lesson
...
My wife swears by aspirin for migraine (in addition to other stuff) apparently its a vasodilator - it relaxes the walls of blood vessels

Ooooo - I've got some of that - will put that in the bathroom cabinet instead of the meds box!! Much easier to get at when the eyes are inhibited!! LOL

Posted: **Mon Mar 08, 2021 7:49 pm**

Bollox, I always thought Migraleve were summat special. Seems they weren't

Migraleve pink tablets have a unique double action, providing short term relief from migraine headache and associated nausea and vomiting. If taken at the first sign of a migraine, Migraleve pink tablets can prevent an attack from developing. They contain a combination of paracetamol, codeine and buclizine. Migraleve yellow tablets provide relief for continuing migraine symptoms and should always be taken after your first dose of Migraleve pink tablets. The active ingredients in the yellow tablets are paracetamol and codeine, a powerful combination for pain relief.

But on the bright side, I've not had an attack whilst living here. And barely even a headache really

Posted: **Mon Mar 08, 2021 8:27 pm**

Mr. Dazzle wrote: Mon Mar 08, 2021 4:00 pm Well bolts are supposed to squish things together, the wheel primarily transmits torque to the hub via friction...that's the intent anyway. The "lumps" on the surface are back up.

So 1/5th the number of bolts means five times tighter, roughly speaking.

I missed this earlier.

Mr. Dazzle wrote: Mon Mar 08, 2021 4:00 pm the wheel primarily transmits torque to the hub via friction

Er, no it doesn't. It does it because the two components are clamped together by bolts. You're thinking of how brakes work. And it's the hub that transmits torque to the wheel, whether it's under braking or acceleration, rather than the other way about..

Mr. Dazzle wrote: Mon Mar 08, 2021 4:00 pm So 1/5th the number of bolts means five times tighter, roughly speaking.

I think you're confusing fractions and multiples. Five times the number of bolts means five times the clamping force. Roughly speaking...

Posted: **Mon Mar 08, 2021 8:45 pm**

mangocrazy wrote: Mon Mar 08, 2021 8:27 pm
Mr. Dazzle wrote: Mon Mar 08, 2021 4:00 pm the wheel primarily transmits torque to the hub via friction
Er, no it doesn't. It does it because the two components are clamped together by bolts. You're thinking of how brakes work.

Ever used a vehicle with a clutch? Working by friction, but plates held together by springs instead of bolts.

Posted: **Mon Mar 08, 2021 8:53 pm**

JamJar wrote: Mon Mar 08, 2021 6:11 pm I just usually get the visual disturbances and I’ve only had a double on like that twice. After I get them I often feel sort of detached and out of sync with my surroundings, after the double one I felt like that for days!

I used to get 'orrible migraines, visual stuff, massive headache and often sick. Only route out was to lie down and sleep, and I usually felt knackered for 48 hours after.

A few years back they switched to visual only stuff. The good new is they don't hurt, the bad news is I can get clusters of them, perhaps 4 or 5 in a day. Shutting my eyes is the only way out, sleeping is good. When they are bad I cannot read or look at a screen, and driving is for dire emergencies only - if I get one while driving I stop ASAP and try to sleep, even a few minutes will clear it.

Posted: **Mon Mar 08, 2021 8:58 pm**

Horse wrote: Mon Mar 08, 2021 8:45 pm
mangocrazy wrote: Mon Mar 08, 2021 8:27 pm
Mr. Dazzle wrote: Mon Mar 08, 2021 4:00 pm the wheel primarily transmits torque to the hub via friction
Er, no it doesn't. It does it because the two components are clamped together by bolts. You're thinking of how brakes work.
Ever used a vehicle with a clutch? Working by friction, but plates held together by springs instead of bolts.

Nice bit of sleight of hand there, but the discussion was about wheels and hubs, not clutches. If I altered my comment to read 'You're thinking of how brakes and clutches work" would that suit sir?

Posted: **Mon Mar 08, 2021 9:00 pm**

mangocrazy wrote: Mon Mar 08, 2021 8:27 pm
Mr. Dazzle wrote: Mon Mar 08, 2021 4:00 pm Well bolts are supposed to squish things together, the wheel primarily transmits torque to the hub via friction...that's the intent anyway. The "lumps" on the surface are back up.

So 1/5th the number of bolts means five times tighter, roughly speaking.
I missed this earlier.

Mr. Dazzle wrote: Mon Mar 08, 2021 4:00 pm the wheel primarily transmits torque to the hub via friction
Er, no it doesn't. It does it because the two components are clamped together by bolts. You're thinking of how brakes work. And it's the hub that transmits torque to the wheel, whether it's under braking or acceleration, rather than the other way about..
Mr. Dazzle wrote: Mon Mar 08, 2021 4:00 pm So 1/5th the number of bolts means five times tighter, roughly speaking.
I think you're confusing fractions and multiples. Five times the number of bolts means five times the clamping force. Roughly speaking...

And on a normal wheel the bolts are also the keys so transmit the turning force rather than relying on friction. Older cars with single hub nut had splines to transmit the force, Google tells me modern ones still have splines or pins and the nut like old cars is still just to hold the wheel in place.
So why do they need such massive torque when older cars were just hand tight and let physics do the rest? Maybe the wings on the old nuts were important and now they aren't allowed the self tightening won't work properly, or Porsche realised most of their customers are incapable of understanding a left hand thread.

Posted: **Mon Mar 08, 2021 9:06 pm**

I thought the old one were run up hand tight and then flogged with a hammer until tight.

revtothelimit - motorbike forum

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