Mercedes Power Unit Hardware & Software

All that has to do with the power train, gearbox, clutch, fuels and lubricants, etc. Generally the mechanical side of Formula One.
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SiLo
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Re: Mercedes Power Unit Hardware & Software

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What issues?
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Capharol
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Re: Mercedes Power Unit Hardware & Software

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SiLo wrote:
Mon Feb 24, 2020 2:40 pm
What issues?
they had some on the 2nd day of testing (with Bottas and Latifi)... like Ferrari and Honda (Honda checked their engine and used it further, Merc and Ferrari didn't)
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SiLo
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Re: Mercedes Power Unit Hardware & Software

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Ah yes, wasn't the Bottas one hydraulics? I believe Ferrari were the only to replace the engine?
Felipe Baby!

ncx
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Re: Mercedes Power Unit Hardware & Software

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SiLo wrote:
Mon Feb 24, 2020 3:54 pm
Ah yes, wasn't the Bottas one hydraulics? I believe Ferrari were the only to replace the engine?
A sensor in BOT 's PU signalled overheating and then they sent it to Brackley for checks. VET's PU had a lubrication oil leak*.

*in cylinder, apparently.

https://it.motorsport.com/f1/news/test- ... e/4693134/

bosyber
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Re: Mercedes Power Unit Hardware & Software

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ncx wrote:
Mon Feb 24, 2020 4:11 pm
SiLo wrote:
Mon Feb 24, 2020 3:54 pm
Ah yes, wasn't the Bottas one hydraulics? I believe Ferrari were the only to replace the engine?
A sensor in BOT 's PU signalled overheating and then they sent it to Brackley for checks. VET's PU had a lubrication oil leak*.

*in cylinder, apparently.

https://it.motorsport.com/f1/news/test- ... e/4693134/
Useful info, thanks.

Since Mercedes have been talking about working hard to make sure they could run the engine hotter, it would make sense they need to check such a signal thoroughly, wouldn't it?! As I understand it, they probably had worked on removing hot spots in the PU, which might well need some further effort to get completely done, so this might be a sign of that.

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De Jokke
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Re: Mercedes Power Unit Hardware & Software

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Hmm, the posted article suggests that Merc played down the issues but that it was in fact more severe than they let on...
Mercedes AMG + Hamilton => dreamteam!

LM10
LM10
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Re: Mercedes Power Unit Hardware & Software

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SiLo wrote:
Mon Feb 24, 2020 3:54 pm
Ah yes, wasn't the Bottas one hydraulics? I believe Ferrari were the only to replace the engine?
Mercedes replaced the engine too, according to Mark Hughes.

bosyber
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Re: Mercedes Power Unit Hardware & Software

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De Jokke wrote:
Mon Feb 24, 2020 4:50 pm
Hmm, the posted article suggests that Merc played down the issues but that it was in fact more severe than they let on...
Where in the it.motorpsort article do you read that Mercedes problem was more troublesome than the team let on? My reading of a (translation) of it does not give that impression really. The remark that it is interesting that the three top/works teams are affected by a PU issue, while their customers are not which suggests they are playing on the knife-edge is the most notable.

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De Jokke
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Re: Mercedes Power Unit Hardware & Software

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"But while Mercedes appeared to run without drama, Motorsport.com has learned that the electrical problems that stopped Bottas on the second day of testing were more terminal than original indicated. In fact, the power unit itself was broken and had to be replaced."

https://us.motorsport.com/f1/news/merce ... t/4692245/
Mercedes AMG + Hamilton => dreamteam!

Just_a_fan
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Re: Mercedes Power Unit Hardware & Software

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Isn't that why they go testing? To find out the weaknesses and fix them, just as much as to check the aero results.
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Phlumbert
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Re: Mercedes Power Unit Hardware & Software

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De Jokke wrote:
Mon Feb 24, 2020 11:01 pm
"But while Mercedes appeared to run without drama, Motorsport.com has learned that the electrical problems that stopped Bottas on the second day of testing were more terminal than original indicated. In fact, the power unit itself was broken and had to be replaced."

https://us.motorsport.com/f1/news/merce ... t/4692245/

According to the It.motorsport article, it had to be replaced because a temp sensor was triggered:
The world champion team sent the power unit to Brackley which was replaced Thursday afternoon after Bottas stopped in the Barcelona tests, due to overheating in the hybrid signaled by a sensor. The trouble has been identified and does not worry Stella's technicians.
We don't really know how 'terminal' the issue was until Mercedes figure out if something legitimately overheated or if it was just a false sensor reading.

I wonder what happened in Latifi's case though.

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etusch
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Re: Mercedes Power Unit Hardware & Software

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bosyber wrote:
Mon Feb 24, 2020 4:17 pm
ncx wrote:
Mon Feb 24, 2020 4:11 pm
SiLo wrote:
Mon Feb 24, 2020 3:54 pm
Ah yes, wasn't the Bottas one hydraulics? I believe Ferrari were the only to replace the engine?
A sensor in BOT 's PU signalled overheating and then they sent it to Brackley for checks. VET's PU had a lubrication oil leak*.

*in cylinder, apparently.

https://it.motorsport.com/f1/news/test- ... e/4693134/
Useful info, thanks.

Since Mercedes have been talking about working hard to make sure they could run the engine hotter, it would make sense they need to check such a signal thoroughly, wouldn't it?! As I understand it, they probably had worked on removing hot spots in the PU, which might well need some further effort to get completely done, so this might be a sign of that.
Generally mercedes were not top.of sheet at first test but this time they were. Maybe because of cooling test they forced their engine. In some stage they put another small hole on sidepod. Last year it was their only weak point was cooling but it seems to me that they still have same issues. If they have issues with cooling in winter it is a real problem during summer.

Just_a_fan
Just_a_fan
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Re: Mercedes Power Unit Hardware & Software

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etusch wrote:
Tue Feb 25, 2020 12:00 pm
In some stage they put another small hole on sidepod. Last year it was their only weak point was cooling but it seems to me that they still have same issues. If they have issues with cooling in winter it is a real problem during summer.
When did they add a hole? Where was the hole added?
Turbo says "Dumpster sounds so much more classy. It's the diamond of the cesspools." oh, and "The Dutch fans are drunk. Maybe"

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etusch
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Re: Mercedes Power Unit Hardware & Software

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Just_a_fan wrote:
Tue Feb 25, 2020 12:11 pm
etusch wrote:
Tue Feb 25, 2020 12:00 pm
In some stage they put another small hole on sidepod. Last year it was their only weak point was cooling but it seems to me that they still have same issues. If they have issues with cooling in winter it is a real problem during summer.
When did they add a hole? Where was the hole added?
Just downside of sidepod inlet. It was said it is for electronics cooling.

Just_a_fan
Just_a_fan
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Re: Mercedes Power Unit Hardware & Software

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etusch wrote:
Tue Feb 25, 2020 12:37 pm
Just_a_fan wrote:
Tue Feb 25, 2020 12:11 pm
etusch wrote:
Tue Feb 25, 2020 12:00 pm
In some stage they put another small hole on sidepod. Last year it was their only weak point was cooling but it seems to me that they still have same issues. If they have issues with cooling in winter it is a real problem during summer.
When did they add a hole? Where was the hole added?
Just downside of sidepod inlet. It was said it is for electronics cooling.
That was there at launch and appears to replace a duct that previously opened in the bottom lip of the sidepod entry. That's not an indication of a cooling problem, merely a different approach to cooling existing electronics items.
Turbo says "Dumpster sounds so much more classy. It's the diamond of the cesspools." oh, and "The Dutch fans are drunk. Maybe"