15 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHOil consumption - hartech re-build
Leading reported evidence
Replace hands and is several years old
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
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Performed · outcome unconfirmed · Original poster
2nd - Changing to what Hartech advise is likely the plan, as mentioned above, I have spoken to a member of the Hartech team, but I am keen to see Baz's response before taking action (Obviously the car has now changed hands and is several years old, so it is out of warranty anyway)
Leading evidence: 'Replace hands and is several years old' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'plan, as mentioned above, i have spoken' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Check backs this up' (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.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that suspect a cause
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Suspected cause · Original poster
2nd - Changing to what Hartech advise is likely the plan, as mentioned above, I have spoken to a member of the Hartech team, but I am keen to see Baz's response before taking action (Obviously the car has now changed hands and is several years old, so it is out of warranty anyway)
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
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0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion · Original poster
I forgot to add, I added 500ml of oil and waited 5 minutes before checking the readings.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
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0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
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Suggestion
Once you get to using 4 bars in 500 miles then you're in difficulty.
Discussions that performed work without a confirmed outcome
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0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed · Original poster
2nd - Changing to what Hartech advise is likely the plan, as mentioned above, I have spoken to a member of the Hartech team, but I am keen to see Baz's response before taking action (Obviously the car has now changed hands and is several years old, so it is out of warranty anyway)
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
My reason for asking is it is immperitive that the running in is done using plenty of revs, not laybouring the engine but using it, as running it very carefully will glaze the bores and cause an oil consumption.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
plan, as mentioned above, i have spoken
No successful repair reported for this finding.
0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that suspect a cause
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suspected cause · Original poster
2nd - Changing to what Hartech advise is likely the plan, as mentioned above, I have spoken to a member of the Hartech team, but I am keen to see Baz's response before taking action (Obviously the car has now changed hands and is several years old, so it is out of warranty anyway)
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
15 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
911uk: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
2 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
1 bar every 500 miles is still not too horrible, but at a usage of 4k per year you'd top up with a litre bottle once.
Hi guys - I know this is a common thread but I am struggling to find a sensible answer.
My newly built HArtech engine (4k Miles) appears to be using quite a bit of oil - circa 1 bar every 500-1000 miles on the digital guage. Manual check backs this up.
Does each engine have its own character, or is this of concern? No leaks, no performance issues, no smoke etc (unless very cold outside - engine is warm yes, and on full 6k rpm blasting)
Only thing to note is tappet noise is loud on cold start and since the oil service 1500 miles ago, oil is still clear and clean.
Thanks guys
Fair point - I will give them a call on Monday, in the meantime if anyone has any thoughts on the above I would be grateful
To be clear, on the drip stick it has gone from Max line to 8/10 of the max line
Thanks
A single 'bar' on the digital gauge is 0.25 litres.
1 bar consumed every 1k miles equates to 4k miles per litre of oil.
This is more than acceptable, and if you don't do more than 4k a year, with yearly oil changes - you'll never actually need to top up.
1 bar every 500 miles is still not too horrible, but at a usage of 4k per year you'd top up with a litre bottle once.
Once you get to using 4 bars in 500 miles then you're in difficulty.
I have read your reply which indicated that you did not have the rebuild done yourself, so my question is how many miles had it done since the rebuild ?
My reason for asking is it is immperitive that the running in is done using plenty of revs, not laybouring the engine but using it, as running it very carefully will glaze the bores and cause an oil consumption.
I am in a lucky position to have my engine rebuilt by both Hartech and my indy. and have been given this advice.
I look forward to Baz's reply.
Hi all - firstly thank you for the replies - I'll be calling the guys at Hartech tomorrow and look forward to updating you all with feedback.
I only recently purchased the car (Aug) and 2k miles ago, so I am still getting used to it. I wish someone would do a YouTube video of whats normal and whats not, would keep my blood pressure down !
I would be surprised if the gentleman before did not run the car in correctly but who knows, certainly out of warranty and not his problem any more!
Anyway, by way of update, it appears there is a larger difference in the digital read to the dip stick - I added 500ml of of oil and it only added 1 bar on the digital, but taken the dipstick to the max line again..... (My drive is on a VERY slight incline, car facing down, bonnet first) does anyone know if that will be a higher reading or lower?)
Either way, the oil in car (Serviced by another V. well known business) has filled it with Mobil 1 0W40. I know Hartech recommend a different oil, and pending the chat tomorrow I will either get this drained and re-filled or wait out until the next service.
I've read a little that a lighter weight oil will burn faster if you drive (As the car is designed) so perhaps I am just stressing about nothing. I have a LWFW and aftermarket RPM Technic GTR exhaust, so there are all sorts of rattling, tapping, ticking noises - However, when you plug your head in the engine bay, it is purring without any issue..... wish me luck and thanks again for the feedback guys.
Happy Sunday
I managed to speak with Hartech, but very much looking forward to Baz's response as I don't want to provide any detail which may not be accurate and cause confusion....
Some engines are noisier than other's; mine's been rebuilt and can be quite noisy at times...varies oddly? Goes well so I no longer worry...but did...
...enjoy your new car...
On my C4S the digital oil reading varies significantly if the car isn't perfectly level, both front to back and side to side. I haven't checked if this is the same via the dipstick. However when level both digital level and dipstick are consistent.
Really good point.
1st - I didn't know when I purchased the car that it had 0w40 Mobil inside. The previous owner had a couple of years with the engine so can only assume it was an oversight. It was carried out by a very well known garage so perhaps they recommended it....?
2nd - Changing to what Hartech advise is likely the plan, as mentioned above, I have spoken to a member of the Hartech team, but I am keen to see Baz's response before taking action (Obviously the car has now changed hands and is several years old, so it is out of warranty anyway)
3rd - The car does otherwise run and perform perfectly, so I'm not yet having sleepless nights, although I would say, there is far too many scaremongers online. If I believed just 5% of what people suggest (I'm not saying this forum FWIW) I would have sold the car immediately....
Thanks again for the input, it is very helpful
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