Why do cars have plastic shrouds over the engine?What is the purpose of plastic engine covers?New headlight...
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Why do cars have plastic shrouds over the engine?
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My 2005 Subaru Outback (3.0 flat 6) has a plastic cover under the hood which covers the engine.
Or it had -- I had some work done and the mechanic has given the car back to me without the shroud.
What is the point of these shrouds?
Should I ask for it to be put back?
subaru
New contributor
add a comment |
My 2005 Subaru Outback (3.0 flat 6) has a plastic cover under the hood which covers the engine.
Or it had -- I had some work done and the mechanic has given the car back to me without the shroud.
What is the point of these shrouds?
Should I ask for it to be put back?
subaru
New contributor
Possible duplicate of What is the purpose of plastic engine covers?
– user71659
9 mins ago
add a comment |
My 2005 Subaru Outback (3.0 flat 6) has a plastic cover under the hood which covers the engine.
Or it had -- I had some work done and the mechanic has given the car back to me without the shroud.
What is the point of these shrouds?
Should I ask for it to be put back?
subaru
New contributor
My 2005 Subaru Outback (3.0 flat 6) has a plastic cover under the hood which covers the engine.
Or it had -- I had some work done and the mechanic has given the car back to me without the shroud.
What is the point of these shrouds?
Should I ask for it to be put back?
subaru
subaru
New contributor
New contributor
New contributor
asked 5 hours ago
tgdaviestgdavies
1413
1413
New contributor
New contributor
Possible duplicate of What is the purpose of plastic engine covers?
– user71659
9 mins ago
add a comment |
Possible duplicate of What is the purpose of plastic engine covers?
– user71659
9 mins ago
Possible duplicate of What is the purpose of plastic engine covers?
– user71659
9 mins ago
Possible duplicate of What is the purpose of plastic engine covers?
– user71659
9 mins ago
add a comment |
4 Answers
4
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oldest
votes
Mostly the point is, to make it "look good".
There is arguably some protection for wires and pipes underneath against animals chewing on them, depending on how its implemented.
While it may be technically unimportant, I´d still ask to get that part back. First and foremost if you ever want to sell the car, potential buyers can get a bad impression if there are parts missing. This can affect resale value. Second, any mechanic should return a car in the same good state he got it in, unless otherwise agreed.
add a comment |
The other function can be to control cooling airflow, so yes, get them to put it back - even if they have to buy one...
add a comment |
On petrol engines the cover can help protect against water accumulating on top of the engine and interfering with the coil packs/ignition.
Rain/condensation can get into the engine bay and over time the water can build up around where the coil packs plug in to the engine. When the rubber seals around the coil packs get old they can start to let water through causing misfires. I know this because it happened to me
New contributor
add a comment |
The cover is purely not cosmetic and serves several purposes, one is to reduce engine noise. You often notice there's foam on the inside and they fit over components such as cams and injectors.
A second function is thermal insulation. It prevents heat from escaping components such as the exhaust manifold and propagating to the cooler parts of the engine, such as electronics, electrical cables, sensors and wiring.
In some cases, they even serve a crash safety function. A press release for a Volvo engine cover states:
The tailor-made PU foam Elastofoam® I makes it possible to produce engine covers that are characterized by good sound absorption and thermal engine encapsulation... The part can absorb a lot of energy on account of the open-cell foam structure, thus increasing passive safety for pedestrians in the event of impact against the hood.
For long-term reliability, the cover should be replaced.
add a comment |
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4 Answers
4
active
oldest
votes
4 Answers
4
active
oldest
votes
active
oldest
votes
active
oldest
votes
Mostly the point is, to make it "look good".
There is arguably some protection for wires and pipes underneath against animals chewing on them, depending on how its implemented.
While it may be technically unimportant, I´d still ask to get that part back. First and foremost if you ever want to sell the car, potential buyers can get a bad impression if there are parts missing. This can affect resale value. Second, any mechanic should return a car in the same good state he got it in, unless otherwise agreed.
add a comment |
Mostly the point is, to make it "look good".
There is arguably some protection for wires and pipes underneath against animals chewing on them, depending on how its implemented.
While it may be technically unimportant, I´d still ask to get that part back. First and foremost if you ever want to sell the car, potential buyers can get a bad impression if there are parts missing. This can affect resale value. Second, any mechanic should return a car in the same good state he got it in, unless otherwise agreed.
add a comment |
Mostly the point is, to make it "look good".
There is arguably some protection for wires and pipes underneath against animals chewing on them, depending on how its implemented.
While it may be technically unimportant, I´d still ask to get that part back. First and foremost if you ever want to sell the car, potential buyers can get a bad impression if there are parts missing. This can affect resale value. Second, any mechanic should return a car in the same good state he got it in, unless otherwise agreed.
Mostly the point is, to make it "look good".
There is arguably some protection for wires and pipes underneath against animals chewing on them, depending on how its implemented.
While it may be technically unimportant, I´d still ask to get that part back. First and foremost if you ever want to sell the car, potential buyers can get a bad impression if there are parts missing. This can affect resale value. Second, any mechanic should return a car in the same good state he got it in, unless otherwise agreed.
answered 4 hours ago
DanielDaniel
98617
98617
add a comment |
add a comment |
The other function can be to control cooling airflow, so yes, get them to put it back - even if they have to buy one...
add a comment |
The other function can be to control cooling airflow, so yes, get them to put it back - even if they have to buy one...
add a comment |
The other function can be to control cooling airflow, so yes, get them to put it back - even if they have to buy one...
The other function can be to control cooling airflow, so yes, get them to put it back - even if they have to buy one...
answered 4 hours ago
Solar MikeSolar Mike
18.7k21132
18.7k21132
add a comment |
add a comment |
On petrol engines the cover can help protect against water accumulating on top of the engine and interfering with the coil packs/ignition.
Rain/condensation can get into the engine bay and over time the water can build up around where the coil packs plug in to the engine. When the rubber seals around the coil packs get old they can start to let water through causing misfires. I know this because it happened to me
New contributor
add a comment |
On petrol engines the cover can help protect against water accumulating on top of the engine and interfering with the coil packs/ignition.
Rain/condensation can get into the engine bay and over time the water can build up around where the coil packs plug in to the engine. When the rubber seals around the coil packs get old they can start to let water through causing misfires. I know this because it happened to me
New contributor
add a comment |
On petrol engines the cover can help protect against water accumulating on top of the engine and interfering with the coil packs/ignition.
Rain/condensation can get into the engine bay and over time the water can build up around where the coil packs plug in to the engine. When the rubber seals around the coil packs get old they can start to let water through causing misfires. I know this because it happened to me
New contributor
On petrol engines the cover can help protect against water accumulating on top of the engine and interfering with the coil packs/ignition.
Rain/condensation can get into the engine bay and over time the water can build up around where the coil packs plug in to the engine. When the rubber seals around the coil packs get old they can start to let water through causing misfires. I know this because it happened to me
New contributor
New contributor
answered 2 hours ago
JamesJames
1413
1413
New contributor
New contributor
add a comment |
add a comment |
The cover is purely not cosmetic and serves several purposes, one is to reduce engine noise. You often notice there's foam on the inside and they fit over components such as cams and injectors.
A second function is thermal insulation. It prevents heat from escaping components such as the exhaust manifold and propagating to the cooler parts of the engine, such as electronics, electrical cables, sensors and wiring.
In some cases, they even serve a crash safety function. A press release for a Volvo engine cover states:
The tailor-made PU foam Elastofoam® I makes it possible to produce engine covers that are characterized by good sound absorption and thermal engine encapsulation... The part can absorb a lot of energy on account of the open-cell foam structure, thus increasing passive safety for pedestrians in the event of impact against the hood.
For long-term reliability, the cover should be replaced.
add a comment |
The cover is purely not cosmetic and serves several purposes, one is to reduce engine noise. You often notice there's foam on the inside and they fit over components such as cams and injectors.
A second function is thermal insulation. It prevents heat from escaping components such as the exhaust manifold and propagating to the cooler parts of the engine, such as electronics, electrical cables, sensors and wiring.
In some cases, they even serve a crash safety function. A press release for a Volvo engine cover states:
The tailor-made PU foam Elastofoam® I makes it possible to produce engine covers that are characterized by good sound absorption and thermal engine encapsulation... The part can absorb a lot of energy on account of the open-cell foam structure, thus increasing passive safety for pedestrians in the event of impact against the hood.
For long-term reliability, the cover should be replaced.
add a comment |
The cover is purely not cosmetic and serves several purposes, one is to reduce engine noise. You often notice there's foam on the inside and they fit over components such as cams and injectors.
A second function is thermal insulation. It prevents heat from escaping components such as the exhaust manifold and propagating to the cooler parts of the engine, such as electronics, electrical cables, sensors and wiring.
In some cases, they even serve a crash safety function. A press release for a Volvo engine cover states:
The tailor-made PU foam Elastofoam® I makes it possible to produce engine covers that are characterized by good sound absorption and thermal engine encapsulation... The part can absorb a lot of energy on account of the open-cell foam structure, thus increasing passive safety for pedestrians in the event of impact against the hood.
For long-term reliability, the cover should be replaced.
The cover is purely not cosmetic and serves several purposes, one is to reduce engine noise. You often notice there's foam on the inside and they fit over components such as cams and injectors.
A second function is thermal insulation. It prevents heat from escaping components such as the exhaust manifold and propagating to the cooler parts of the engine, such as electronics, electrical cables, sensors and wiring.
In some cases, they even serve a crash safety function. A press release for a Volvo engine cover states:
The tailor-made PU foam Elastofoam® I makes it possible to produce engine covers that are characterized by good sound absorption and thermal engine encapsulation... The part can absorb a lot of energy on account of the open-cell foam structure, thus increasing passive safety for pedestrians in the event of impact against the hood.
For long-term reliability, the cover should be replaced.
edited 3 mins ago
answered 12 mins ago
user71659user71659
1214
1214
add a comment |
add a comment |
tgdavies is a new contributor. Be nice, and check out our Code of Conduct.
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Possible duplicate of What is the purpose of plastic engine covers?
– user71659
9 mins ago