mk1-forum.net

A friendly international forum for people interested in the tuning & modification of classic BMC vehicles
It is currently Sun Dec 16, 2018 1:51 am

All times are UTC [ DST ]




Post new topic Reply to topic  [ 10 posts ] 
Author Message
PostPosted: Thu Oct 04, 2018 8:44 am 
Offline
Site Admin
User avatar

Joined: Thu Jun 24, 2010 11:30 am
Posts: 11831
Location: In the Village.
On another forum, a poster published the following picture asking what may have gone wrong.

Image

Amongst some eminently sensible suggestions was this cracker. ....

"Having read this post it occurred to me, that with a cast iron manifold and aluminium pistons you have the recipe for thermite. If a bit of rust from the manifold came into contact with a bit of aluminium oxide on the piston top, this would need a temperature of some 1650 C to ignite it, that is only a fraction of the 2500 C in a combustion chamber and it would produce a reaction of 4000 c that would easily melt a hole in a piston".

It put a smile on my face, I can tell you :D

_________________
Mark F
I am not a number, but you can get me on 0800-555-555


Top
 Profile  
 
PostPosted: Thu Oct 04, 2018 9:02 am 
Offline
User avatar

Joined: Mon May 07, 2012 6:10 am
Posts: 2957
Location: Big Red, Australia
Gone wrong?

What's gone wrong?

I don't see what the issue is :lol:


Top
 Profile  
 
PostPosted: Thu Oct 04, 2018 12:26 pm 
Offline
User avatar

Joined: Mon Jun 10, 2013 9:57 am
Posts: 687
Location: Australia
New fangled variable compression pistons?


Top
 Profile  
 
PostPosted: Thu Oct 04, 2018 7:57 pm 
Offline

Joined: Thu Jun 24, 2010 10:05 pm
Posts: 237
:lol: :lol: :lol: :lol: vermins must have been the Termites chewing on that piston!


Top
 Profile  
 
PostPosted: Fri Oct 05, 2018 4:42 am 
Offline
User avatar

Joined: Tue Oct 29, 2013 10:24 am
Posts: 1138
Location: Sonoma California
mk1 wrote:
On another forum, a poster published the following picture asking what may have gone wrong.

Image

Amongst some eminently sensible suggestions was this cracker. ....

"Having read this post it occurred to me, that with a cast iron manifold and aluminium pistons you have the recipe for thermite. If a bit of rust from the manifold came into contact with a bit of aluminium oxide on the piston top, this would need a temperature of some 1650 C to ignite it, that is only a fraction of the 2500 C in a combustion chamber and it would produce a reaction of 4000 c that would easily melt a hole in a piston".

It put a smile on my face, I can tell you :D

Ping him to deathcenturion...............................
Attachment:
indexbigus.jpg


You do not have the required permissions to view the files attached to this post.


Top
 Profile  
 
PostPosted: Fri Oct 05, 2018 5:38 am 
Offline
User avatar

Joined: Thu Jun 24, 2010 10:39 pm
Posts: 156
Location: melbourne in the OZ
this is empirical evidence that a little bit of information is dangerous.
Twenty years ago hardly anyone knew what thermite was, now every idiot and their dog knows :roll:

_________________
never argue with a fool, they'll only bring you down to their level and beat you with experience


Top
 Profile  
 
PostPosted: Fri Oct 05, 2018 7:49 am 
Offline

Joined: Thu Jul 18, 2013 7:31 am
Posts: 136
so thermite isn't hot marmite then ?

Ok i'll get my hat....................................


Top
 Profile  
 
PostPosted: Fri Oct 05, 2018 8:44 am 
Offline
Site Admin
User avatar

Joined: Thu Jun 24, 2010 11:30 am
Posts: 11831
Location: In the Village.
greyghost wrote:
this is empirical evidence that a little bit of information is dangerous.
Twenty years ago hardly anyone knew what thermite was, now every idiot and their dog knows :roll:


I blame "Mythbusters"

_________________
Mark F
I am not a number, but you can get me on 0800-555-555


Top
 Profile  
 
PostPosted: Sat Oct 06, 2018 8:13 am 
Offline
User avatar

Joined: Thu Jun 24, 2010 10:39 pm
Posts: 156
Location: melbourne in the OZ
and all those other "science wanna be shows"....

_________________
never argue with a fool, they'll only bring you down to their level and beat you with experience


Top
 Profile  
 
PostPosted: Sat Oct 06, 2018 5:53 pm 
Offline
User avatar

Joined: Thu Feb 17, 2011 10:38 pm
Posts: 378
Location: Taunton Somerset UK Formerly Kingswinford
Could be caused by a french termite

_________________
"Ambition: the first step on the road to disappointment" Homer. J. Simpson
"Disappointment: the first step on the road to enlightenment" Buddha
"Enlightenment: the first step on the road to ambition" Dalai Lama


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 10 posts ] 

All times are UTC [ DST ]


Who is online

Users browsing this forum: 1071bob, Google [Bot] and 26 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group
Localized by MaĆ«l Soucaze © 2010 phpBB.fr