The Triumph Dolomite Club - EzBoard Archive

Some more advice please, I've just put the head back on my Sprint after a skim and rebuild and would like to know the correct antifreeze and quantities needed. cheers gordon<br>
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1976 Sprint ULG 62R

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25% antifreeze I think is what the owner's handbook suggests. I would make sure you use distilled water (the stuff from the motor factors to fill a battery is good for this) to avoid limescale.

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use deionised water, and 1/3 antifreeze. If you can get hold of the luminous yellow stuff rather than the blue jobber, it'll be far easier to spot leakage.

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Tend to go for 40% anti freeze. Have always stuck with Bluecol, flushing and changing every 2 years.

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I read somewhere that anti freeze was not such a good conductor of heat as water and that it was best to keep the percentage used as low as possible. Since I reduced the concentration used to 25% my 1500 engine does not seem to overheat. <br>
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I also added a water wetter to improve the heat transfer.

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Richard, you may have solved my cooling problem. The car runs a little hotter than it used to, since I have used 50% antifreeze. Just off to dilute it now!

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not long finished replacing my sprints coolant,<br>
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bottom hose wouldn't budge, had to cut it off<br>
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hose connection toexpansion from thermo housing corroded so with a little pressure it snapped off<br>
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sourced spare ,both nuts sheared trying to remove it<br>
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had one leak, fixed that,thought top my self 5 min job 2 bloody hours!!!<br>
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then read this post and it seems i'bve added to much antifreeze 50/50<br>
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should of watched eastenders with the misses<!--EZCODE EMOTICON START :rolleyes --><img src=http://www.ezboard.com/images/emoticons/eyes.gif ALT=":rolleyes"><!--EZCODE EMOTICON END--> <br>
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When I got the head skimmed the engineer told me to make sure that I added the correct type of anti freeze as some would cause more corrosion than others, so which one do I buy.

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i've always been advised to use bluecol

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whatever was in it before so it has the same inhibitors...<br>
I use bluecol and have doen for ages.<br>
You dont want ore than 25% unless you lve in the frozen north. Anti freezhas a lower heat capacity so having to strong a mix compromises the heat removing ability of your cooling system<br>
Jonners

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Just read the article in Practical Classics.<br>
They quote a 50/50 mix!

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clearly has shares in both Bluecol and payen...<br>
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Jonners

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Bluecol was the original Triumph/BL recommended product (according to my owners handbook). <br>
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Bluecol is of course still about but be sure to get the real stuff as there are a number of (very) inferior copies about which are very similarly packaged.<br>
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If you cannot get it the Halfords Premuim Anti Freeze (the dearer of the two they sell) is very6 very similar and has an identical specification.<br>
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It is popularly recommended to use high percentage mixtures nowadays, especially with alloy engines and heads that are are prone to corrosion and silting problems - hence the Practical Classics advice, no doubt.<br>
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Jonners, Richard and the others are all quite correct though, the heat conduction properties of anti freeze are inferior to water, so my view is NOT to exceed the manufacturers recommended mixture - in the Sprints case 25% I believe. A water wetter such as Richard advocates can be a good idea - they are certainly very efective in race engines where heat soak and heat transfer issues are magnified.

<p>Martin<br>
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1968 Triumph 1300FWD<br>
1975 Triumph 1500TC Auto<br>
1989 Honda Civic 1300 Auto<br>
2006 Mondeo 2.0 Ghia X Auto<br>
2002 Renault Scenic<br>
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what about this? <!--EZCODE AUTOLINK START--><a href="http://www.sprintparts.triumphowners.co ... <!--EZCODE AUTOLINK END--><br>
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not quite decided, if i modified the stat (increase flow rate) and had the larger diameter rad cores, i think it would make hell of a difference the the engine life. also does any one know the ideal oil temperature or does it depend on the manufacture?

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Bear in mind the Lamours race sprints in the australian summer, and temperatures regularly get above 40C on the track. If it's in good condition the standard cooling system is absolutely fine for road use assuming the rest of the car is reasonably standard. At least that was my experience driving my sprint through the rush hour in bath in high summer.<!--EZCODE EMOTICON START :) --><img src=http://www.ezboard.com/images/emoticons/smile.gif ALT=":)"><!--EZCODE EMOTICON END--> <br>
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