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For me the benefits far outweigh the increased wear on the engine. I don't really need my engine to last 400k miles like it can in perfect circumstances. I need fog free windows, be comfortable driving the car without gloves on making the steering slip. To be able to focus on getting around and not shivering. I don't drive these days but back when I did those were all issues I had for my 5am start getting to work. An…
> I need fog free windows You don't need to warm the engine much to get that. It will clear up even with cold wind blowing on it. https://engineering.stackexchange.com/questions/3174/which-i...
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This is super interesting as a person who is interested in cars, but by no means a mechanic. What does polishing the timing chain accomplish? Or is it more “accurate” timing?
Smoother surfaces, less friction, less wear, increased longevity.
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> I need fog free windows You don't need to warm the engine much to get that. It will clear up even with cold wind blowing on it. https://engineering.stackexchange.com/questions/3174/which-i...
That specifically talks about using the AC, because it's dehumidified air. The AC also requires the engine to be running, so blasting the windshield with hot air or air-conditioned air will require running the engine for roughly the same amount of time.
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Right but that doesn't mean they can't rebuild the engine for each race weekend.
The F1 engines are sealed by the FIA. They are not rebuilding them and doing so would result in disqualification.
Article 23.3d 2018 Sporting Regulations After consultation with the relevant power unit supplier the FIA will attach seals to each of the relevant components within the power unit prior to them being used for the first time at an Event in order to ensure that no significant moving parts can be rebuilt or replaced.
Within two hours of the end of the post-race parc fermé exhaust blanking plates (with one 10mm diameter inspection hole per cylinder) and further seals will be applied to all used power unit components in order to ensure that they cannot be run or dismantled between Events.
Upon request to the FIA these additional seals will be removed after the start of initial scrutineering at the next Event at which the power units are required.
All such power units must remain within the team’s designated garage area when not fitted to a car and may not be started at any time during an Event other than when fitted to a car eligible to participate in the Event.
2018 F1 Sporting Regulations 17/70 19 December 2017 ©2017 Fédération Internationale de l’Automobile e) If any of the FIA seals are damaged or removed from the relevant components within the power unit after they have been used for the first time those parts may not be used again unless they were removed under FIA supervision.
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This is super interesting as a person who is interested in cars, but by no means a mechanic. What does polishing the timing chain accomplish? Or is it more “accurate” timing?
> What does polishing the timing chain accomplish? Or is it more “accurate” timing? I’m also curious, in terms of idling and the longevity of the engine. It has to be said, those old Crown Vics are still on the road.
"peratures can shorten the life of your engine by stripping away oil from the engine’s pistons and cylinders — two critical components that help your engine run." Nonsense, if the oil pump and engine are built correctly and working as intended this does not cause librication not to work correctly. How many cabs would die early because they are idling in traffic all day? Your personal cars engine is not a formula one…
> How many cabs would die early because they are idling in traffic all day? and cop cars? Approximately all of them. This is well known. https://old.reddit.com/r/MechanicAdvice/comments/4pjnco/how_...
Cabs, police cars, UPS/Fed-Ex trucks need engine/transmission rebuilds sooner because they stop/start every day all day long. For example a Fed-Ex panel truck with a Cummins engine and Allison drive train will last for about 1 million miles without rebuild if used as a light duty such as a plumber or electrician or personal vehicle. Used as a Fed-Ex delivery vehicle it will need a rebuild at around 410K to 450K miles.
Idling is not causing the engine to need a rebuild at 40% of it's normal lifespan, its shutting it off and starting it over and over all day long.