6 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHCar using water but no leak
Leading reported evidence
Install engine as something else failed first
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
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0
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1
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Read evidence and context
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Performed · outcome unconfirmed
Eventually fitted a new engine as something else failed first!
Leading evidence: 'Install engine as something else failed first' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Install engine as something else failed first' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suggestion
2) "Sweating" on both or one front rads(not always seen with a pressure test)
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Suggestion
External leaks are easily found by adding a fluorescant dye to the coolant, and using an ultra-violet lamp to detect the bright yellow leak point!
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6 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
911uk: 1 discussions
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I had the AA out they did a presure test up to 5 PSI and it held, car the car is using water about 2 pints every 10 miles, no water in oil as far as I can see? Any tips?
You are losing water and do not have any telltale white scum on the oil filler cap? ...right?
then the three usual areas to look into are:
1) The little pipe that runs L > R just ahead of the engine(front) it rubs against the undertray and leaks(slowly when cold then faster when hot)
2) "Sweating" on both or one front rads(not always seen with a pressure test)
3) Water header plastic tank(this usually shows under pressure) so look into 1 and 2 first
ok ill try that, it does appear to leak faster when under stress. I am concerned that it may be a head gasket but as you said no white scum in the oil on the dip stick, and only a tiny bit in the filler cap, that is there more than likely because of damp.
Any half decent workshop would have a pressure tester, which can tell if the leak is internal or external.
Either way, you have a leak. Pay the nice man to tell you exactly where it's from.
External leaks are easily found by adding a fluorescant dye to the coolant, and using an ultra-violet lamp to detect the bright yellow leak point!
Internal leaks can be detected by the C0/C02 in the coolant header tank.
Why mess around?
Not wishing to scare you but after the ten miles is the cooling system unduly pressurised. ie does the water shoot out when the cap is removed.
Also when starting from cold is there any steam from the exhaust and if so is it from one bank (pipe) rather than the other.
I only ask as I had a similar set of water loss circumstances . Again no oil in water or water in oil to naked eye.But pressurised system and more steam from left hand bank. and no visible leaks. Suspected possible cracked cylinder head or fractured liner.
Eventually fitted a new engine as something else failed first!
Hope its just a leaky pipe/rad/header tank.
