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It appears the 1.0L Ecoboost and some years of the 2.7L Ecoboost have "wet belts", meaning timing belts that are inside the engine and bathed in oil. I also read newer Honda Civics have them. Seems like a bad idea to me.

Jump to 18:31.




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Why would you have a belt get oil on it? I'm not an engineer but the old school me thinks that's not the best.

Would love to hear insight on this.

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Why a bad idea?

If belt has teeth and drive pulleys have notches or teeth it should work fine.

I get the oil and rubber could be a bad combination but I would think that they have worked on a compound that could withstand it.

The engine he tore apart that had teeth off of the belt could have been hot a bunch killing the belt. Never know.

Last edited by 10gaugemag; 07/25/23.

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1.0 Ecoboost is extremely problematic with regard to any issue., Don't put Honda engineering in the same sentence as Fords.



I believe the belt on the 3.0 Duramax is a wet belt as well they are designed to go 130-150k before replacement.

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Originally Posted by 10gaugemag
I get the oil and rubber could be a bad combination but I would think that they have worked on a compound that could withstand it.

It appears they require special oil.

I want a chain instead of a belt on anything inside the engine because a belt will fall apart and destroy the engine. A belt also requires more frequent replacement so I want easy access.



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Originally Posted by Whiptail
Originally Posted by 10gaugemag
I get the oil and rubber could be a bad combination but I would think that they have worked on a compound that could withstand it.

It appears they require special oil.

I want a chain instead of a belt on anything inside the engine because a belt will fall apart and destroy the engine. A belt also requires more frequent replacement so I want easy access.

^^^^ the problem is a lot of companies build engines with timing chains that are cheap . Timing belts run quieter and that is their only advantage and they hold timing marks a little better until they don't .

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Originally Posted by Whiptail
Originally Posted by 10gaugemag
I get the oil and rubber could be a bad combination but I would think that they have worked on a compound that could withstand it.

It appears they require special oil.

I want a chain instead of a belt on anything inside the engine because a belt will fall apart and destroy the engine. A belt also requires more frequent replacement so I want easy access.
I have seen chains come apart ruining the engine as well. Uncle got lucky on one and didn't bend any valves or knock holes in any pistons.

Ford 302 in an F-150. Lucky dude there.


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Everyone went chain.
Then learned the plastic glides necessary were a problem.

Electric actuated valves are the future.
Less weight, no parasitic friction, infinite lift and duration to enhance performance
at any load or rpm. Want a Jake Brake for your car? It could be programmed in.


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Pontiac did it in the early 60's with the OHC straight 6. I can only imagine belt technology has improved in 60 years.

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Originally Posted by mnmarlin
I can only imagine belt technology has improved in 60 years.

Maybe not.



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Mustang GT 5.0 also use wet belt?


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Originally Posted by KevinLA
Mustang GT 5.0 also use wet belt?


Yes, I think between 2018-2023 they have a wet belt for the oil pump. I really want to buy an F150 with a 5.0 but this has me hesitating.



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Originally Posted by Whiptail
Originally Posted by KevinLA
Mustang GT 5.0 also use wet belt?


Yes, I think between 2018-2023 they have a wet belt for the oil pump. I really want to buy an F150 with a 5.0 but this has me hesitating.

If this is what hangs you up from buying a vehicle you might as well buy good shoes.


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