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engineermike

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I’ll try to remember to post the stock gdi blend table tomorrow. The car runs mostly port injection 99% of the time. I think the oil dilution is mainly on the ones that aren’t dual injected.
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Dfeeds

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This is what the 2021 elastomeric looks like.
The prior ones were fluid.

59b42051-2bb3-4c34-80a8-387abd022473-jpeg.jpg
So 2021 MY was when the switch happened?


My money would be on something as simple as the viscous damper being considered over engineered for a street car. If the elastomeric damper can still meet a targeted engine life expectancy then I'm sure they'd do it to cut cost.

I'm more interested in how this affects mods and engine longevity. The gen 3 with the viscous damper would, theoretically, provide a more sturdy platform for boosting and/or increasing the redline. At a minimum the elastomeric damper would need replacing much sooner than a viscous damper.
 

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WD Pro

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Can you see enough of the damper with the engine in situ to identify the type ?

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ice445

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Can you see enough of the damper with the engine in situ to identify the type ?

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Yes, just look down in front of the radiator and behind the sway bar, the crank pulley is easily identified. My '20 has the fluid style.
 

EFI

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Yes, just look down in front of the radiator and behind the sway bar, the crank pulley is easily identified. My '20 has the fluid style.
What specific markings or visual features does the fluid one have that you can identify it over the other one?
 

ice445

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What specific markings or visual features does the fluid one have that you can identify it over the other one?
The outside face is one piece so it's thicker. The elastomeric one has a thinner outer face with that step down ledge that has the rubber portion bonded in. So basically if you have a one piece outer face with no inner ledge, that's the liquid one.

Of course I could be wrong, I only ascertained this by looking at the picture posted in here and comparing it to mine.
 

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DrPepper1970

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I have a late build 2020 (October 2020) that has the elastomeric. Maybe Ford just started buying what it could get its hands on?
 

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Ford may have changed earlier than we first thought.

My blend date was July 2020.

My engine date :

1620241943898.jpeg


My damper :

1620241981030.jpeg


Which looks like the elastomeric type ? (Unless I am mistaken ?)

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Dfeeds

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I was able to nab these. The first is the elastomeric piece on the F150, and most likely later mustang GT models. The second is the viscous style on the 2018.
zf150pulley_29276a13672b1c8af792db1e9d8603a97f3a1052.jpg
zmustangpulley_0b470770531b225dcb8e7bad3d3394c9ef850272.jpg
 

WD Pro

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I was able to nab these. The first is the elastomeric piece on the F150, and most likely later mustang GT models. The second is the viscous style on the 2018.
zf150pulley_29276a13672b1c8af792db1e9d8603a97f3a1052.jpg
zmustangpulley_0b470770531b225dcb8e7bad3d3394c9ef850272.jpg
That confirms that my Feb 2020 engine has the elastomeric damper.

I assume Feb 2020 is to early to group as a 2021 ‘update’ indicating this was more of a running change rather than a MY20 / MY21 change ?

WD :like:
 

ice445

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That confirms that my Feb 2020 engine has the elastomeric damper.

I assume Feb 2020 is to early to group as a 2021 ‘update’ indicating this was more of a running change rather than a MY20 / MY21 change ?

WD :like:
My car is an October 2019 build with the liquid one, so it definitely seems it was a mid year change.
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