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Overheated oil does not have any impact on the engine.


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Running engine with closed oil cooler flap caused the oil temperature reach max. value, 100°C+, but it will not harm the engine.

 

Picture below was taken 15 minutes after temperature reached max. and after that i performed fly mostly with 61/3000 engine setting. The oil cooler flap was whole time close.

Map - The Channel, default wether.

The noise "knocking" from the engine when oil is hot too is  definitely missing in DCS 2,7.

 

Screen_210416_221851.png

Track included. It tooks 1 hour!

P-51D _ OIL _ 2,7.trk

F-14A/B

P-51D | P-47D | Spitfire | Fw 190D | Fw 190A | Bf 109K | WWII Assets Pack

Normandy | The Channel

F-86 | F-16C | A-10C | FC-3 | Syria | PG | NTTR | CA | SC |

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Very interesting.

I know that this is not relevant anymore but, was excessive oil temp  affect engine prior 2.7 ?

I7 8700k 4.9GHz, Gigabyte Z390 Aorus PRO, Ram 32 GB G.skill, Palit Gamerock OC 3090,Hotas Warthog, T.Flight Rudder Pedals

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Posted (edited)

Some additional info.

 

The engine will run up to 78% RPM with oil coolant flap close until there is fuel.

I tried 75%, 77% and 78% RPM and i gave up it after 60+ minutes. I had no problem.

 

But with RPM 79%, the engine died after approximately 30 minutes after oil temperature reached max. value.

With 80%, the engine died after approximately 20 minutes after oil temperature reached max. value.

 

All results i achieved repeatedly, plane was sitting on ground with manual engine start, map and wether condition as above.


Edited by saburo_cz

F-14A/B

P-51D | P-47D | Spitfire | Fw 190D | Fw 190A | Bf 109K | WWII Assets Pack

Normandy | The Channel

F-86 | F-16C | A-10C | FC-3 | Syria | PG | NTTR | CA | SC |

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Yes, I took control of your track and ran it as well, its certainly not acting as expected, that said, the new cooling system has not been added to the P-51D, sounds like they will elevate the priority of that, then we can re-review then. Thanks for the report!

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There's something similar happening with the Spitfire, where hot oil temp that goes off the top end of the gauge doesn't affect the engine.  At the moment, the temperature to watch is the coolant (don't let it get over 130C), since oil temperature for the inlines is somewhat irrelevant now.

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So when oil temp does not effect engine at all, why so many ppl claim that keeping oil temp by manual makes engine unbreakable ?

I7 8700k 4.9GHz, Gigabyte Z390 Aorus PRO, Ram 32 GB G.skill, Palit Gamerock OC 3090,Hotas Warthog, T.Flight Rudder Pedals

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  • 2 weeks later...

I think there is a bug with the gauge. I saw my temp rising, so I opened the cooler. Nothing happened. The temp continued to rise.

I landed, shut down everything and let it sit for 3 hours. When I came back, as soon as I turned on the battery, the gauge went all the way up.

It should have cooled down at least partially, but it didn't. 

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Hi there,

Similar thing happens in the Yak-52.....

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