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20th July 2014, 18:25 | #81 | |
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Rover 75 Tourer Join Date: Mar 2013
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Quote:
I glued the insert in with superglue - doesn't rotate now. |
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5th August 2014, 21:19 | #82 |
This is my second home
R75 Saloon. Join Date: Feb 2009
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5th August 2014, 21:23 | #83 |
This is my second home
rover 75 1.8 vvc club se wedgwood blue Join Date: Aug 2009
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8th August 2014, 19:56 | #84 |
This is my second home
R75 Saloon. Join Date: Feb 2009
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23rd February 2015, 17:42 | #85 |
This is my second home
R75 Saloon. Join Date: Feb 2009
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Octanes and how they get them.
Now for the chemistry lesson: Oil is a hydrocarbon fuel, meaning the individual molecules contain carbon and hydrogen atoms chained together. Modern petrol is blended according to various recipes, the active ingredients for which include about 200 different hydrocarbons, each with a spine of between 4 and 12 carbon atoms. One of them, isooctane, consists of 8 carbon and 18 hydrogen atoms (C8H18) and is exceptionally resistant to exploding spontaneously when exposed to the heat and pressure found inside a typical combustion chamber. Another, n-heptane (C7H16) is highly susceptible to such self-ignition.
These two compounds are therefore used to rate the knock resistance of all petrol blends. Petrol that resists knock the way a mixture of 87-percent isooctane and 13-percent n-heptane would is rated at 87. Racing fuels with octane ratings over 100 resist self-ignition even better than pure isooctane. The octane ratings for regular-grade fuel range from 85 to 87, mid grades are rated 88 to 90, and 91 and higher is premium. Colvert.-- Last edited by COLVERT; 18th January 2016 at 09:46.. |
28th May 2015, 10:13 | #86 |
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Rover 75 Tourer Join Date: May 2015
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This site has a complete parts list for Rover's and MG's. A wealth of information if you are looking for a part number or drawing of an item.
WHAT site? there's no link |
28th May 2015, 19:50 | #87 | |
This is my second home
R75 Saloon. Join Date: Feb 2009
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Quote:
This thread is to give folk information.-- |
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27th November 2015, 11:22 | #88 |
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ZT 260 SE Twilight and 10 other 75 ZT's :O Join Date: Jan 2007
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Thread revival !!
Quite a bit of updating needed. I'll chug through one of these days and and MODS to edit in any latest info I may have. OR maybe start a new thread with current info on it ??
__________________
[SIGPIC][/SIGPIC] Newbies do now!! 1. Plenum drains..all 3 or 4 year dependent 2. Cooling fan..All speeds functioning 3. Bonnet cable divider block |
30th November 2015, 19:59 | #89 |
This is my second home
R75 Saloon. Join Date: Feb 2009
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Go for it Jules.--
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23rd June 2019, 16:10 | #90 | |
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