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john learmonth
  • Male
  • strathcedar, nsw
  • Australia
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Market reseach, axle straightening tool...
16 Replies

I expect this forum will have rules related to commercial postings, but I hope this one doesn’t quite fall into that category since I’m not (yet) trying to sell or promote anything. It’s just some…Continue

Started this discussion. Last reply by john learmonth Nov 4, 2015.

Seat tube triangulation ?
19 Replies

I've noticed it before but never really thought about it...Kart seats are typically attached to the chassis quite differently left side vs right side. On the left side most karts use a mounting tube…Continue

Started this discussion. Last reply by john learmonth Sep 22, 2015.

 

john learmonth's Page

Latest Activity

john learmonth replied to Josh Eatts's discussion Tyre Wrap VS Tyre Covers
" Brett, That's not my understanding. References below: From this page: http://www.greencarcongress.com/2012/03/pah-20q2.html "Automobile tire rubber in general consists of approximately 40−60% rubber polymers; 20−35%…"
yesterday
john learmonth replied to Josh Eatts's discussion Tyre Wrap VS Tyre Covers
"The rubber used in tyres has various kinds of volatile oil infused into the compound, in greater and lesser quantities. Softer tyres tend to have more of it, e.g. racing tyres. Note the word 'volatile' above. This means these oils are…"
yesterday
john learmonth replied to Kristian Mizdrak's discussion How to have a good start in TaG?
"FWIW, On the roll up laps, accelerate, brake, accelerate, brake, but don't slow down excessively or suddenly (you don't want to be hit from behind). Once traffic bunches up, intermittently apply the brake while holding the throttle fairly…"
Jun 1
john learmonth replied to Neville Scullion's discussion Is this forum become barren?
"I've read those KA authored characterisations of persons making IMO largely not unreasonable critique of KA policy and actions. All I can say is that in my experience "trolls" and 'keyboard cowards" never put their real name…"
May 17
john learmonth replied to Neville Scullion's discussion Is this forum become barren?
"I suspect there are people taking notice of what is being said on public forums, and then placing names on a list... Regards, John."
May 17
john learmonth replied to Neville Scullion's discussion Is this forum become barren?
"What people can afford is of course extremely variable, "relative" if you will. Some can and do spend whatever they think it will take, and good luck to them, that's their business. Some, many, are forced to nickel and dime it, just…"
May 16
john learmonth replied to Neville Scullion's discussion Is this forum become barren?
May 16
john learmonth replied to Robert Lord's discussion A reality check for those that think all is well!
"Yeah, but be cautious. A few years ago I was was innocently 'dumpster diving' the day after after a round ot the State Titles, and was accosted by some big bloke I didn't know wanting to know "hey, what the fuck do you think…"
May 16
john learmonth replied to Nikola schmidt's discussion Arrow Brake Issue (sticking pads)
"Have you checked the pedal free-play? There needs to be some small amount of free motion at the pedal before the master cylinder lever begins to move. This is adjusted by tweaking the rod length (i.e. rod from pedal to MC). If there is too…"
Feb 26
john learmonth replied to Ruben Martins's discussion Vibration after hitting kerb
"A slight wobble in a wheel is not uncommon, but doesn't usually cause significant vibration (though it may depend on the definition of 'slight'). Assuming the wheel is at least reasonably straight (i.e. not very bent), a vibration…"
Feb 20
john learmonth replied to Di Smith's discussion Petition
"Signed. It at least looks as if that poll on Kartsport news has been closed down... Regards, John."
Jan 8
john learmonth replied to Anousone Frichitthavong's discussion How Does It Work????
"Richard, The key to creating A grade technical bullshit is to at least partially base it on some credible sciencey fact that is actually true, no matter how tenuously or minimally related. Advertising 'creatives' are the Masters of…"
Dec 23, 2017
john learmonth replied to Anousone Frichitthavong's discussion How Does It Work????
"Richard, Should I have put "or not" in italics? I was just poking tongue in cheek at the notion of a 'tidal effect' being in any way 'a thing', and developing a completely spurious argument to support it... It probably…"
Dec 22, 2017
john learmonth replied to Anousone Frichitthavong's discussion How Does It Work????
"High tides are caused by the Moons' gravity 'pulling' the ocean water toward it, so, it follows that a loss of traction coinciding with high tide is caused by the Moon also pulling the kart toward it, which subtracts somewhat from the…"
Dec 22, 2017
john learmonth replied to ben marshall's discussion Older chassis going soft
"Hi wayne, That (below) doesn't describe my opinion on this. I think the material (i.e. particular grade of steel) is not very important other than how it affects longevity of the chassis, or axle. I think that the OD and wall thickness of the…"
Nov 23, 2017
john learmonth replied to ben marshall's discussion Older chassis going soft
"It's interesting that some manufacturers seem to use 'hard' and 'soft' to describe axles with different hardness materials but the same wall thickness, and others have axles described in a similar manner that have different…"
Nov 23, 2017

Profile Information

My involvement in karting:
Racer
My race number:
eleven
The class(es) I race:
TAG
My best results:
second, nsw dirt track titles 1993
MVKC clubman light champion 1995 (seconds / thirds other years)
And people should also know:
old(ish) fart coming back after 15 years...

Comment Wall (1 comment)

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At 19:38 on April 4, 2013, Col Fink said…

Hi John,

Welcome to Kartbook. I'm going to assume you're the John Learmonth whose posts on eKartingNews I gleaned a great deal of knowledge from 7 or 8 years ago. Just thought I'd say thanks very much for your insight back then, and I look forward to further discussions with you on here!

Cheers,

Col.

 
 
 

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