Is rust under valve cover still an issue with later CTRs ?

[s2kdriver80]

Was this ever officially designated as a TSB and corrected by Honda? If not, is this really a concern? And if it is, any practical way to address this issue?

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[s2kdriver80]

Is this a problem on only a handful of unlucky CTRs?

 

[StanMan]

Never heard of this issue for the CTR and I've been following the community for years.

 

[WhiskeyTango]

Haven't had it on my '19 that spends a lot of time in touchless car washes and even outside in the summer.

 

[WhiskeyTango]

Never heard of this issue for the CTR and I've been following the community for years.

It was a thing a while back. Guys getting cylinder misfires and finding the #4 spark plug hole filled with water and rust.

 

[Over9000]

I would be interested in knowing this as well. I'll be getting my 21 CTR in march and will be parked on the driveway because I don't have a garage. It's going to see a lot of rain.

 

[EnjoyDriving]

Well, i can that water does get into the engine bay area, especially around cylinder 1 area, becoz i see big pool of water after touchless car wash. So, that could definitely cause the problems over time. I tried plugging all the holes under the hood and even the scoop, but to no avail. Now, i place a piece of foil board to cover the engine when going thru the wash, and it works!! i dont think rain would in though but i rarely drive it the rainy days so not sure.

hope this helps

 

[s2kdriver80]

 

[Mcclaughry95]

It was my daily and lots of rain/snow and no issues at 50k miles on my 19. Was garage kept tho.

 

[9000RPM]

My 2018 with 12,xxx is currently at the dealership for this issue. Garage kept in the winter but parked outdoors for the other 3 seasons.

No tunes or any engine mods.

Depending on how Honda handles my situation, determines whether I'm keeping the car or moving on.

 

[boosted180sx]

I recently gapped my plugs and my car was fine.

 

[NapalmEnema]

It was a thing a while back. Guys getting cylinder misfires and finding the #4 spark plug hole filled with water and rust.

Sounds like some OCD guy getting a high pressure power washer and going ham on his engine bay to me.

 

[WhiskeyTango]

Sounds like some OCD guy getting a high pressure power washer and going ham on his engine bay to me.

Very possible. Between the engine cover and the seals on the coil packs I can't see how it could happen.

 

[9000RPM]

Sounds like some OCD guy getting a high pressure power washer and going ham on his engine bay to me.

Never washed my engine bay. Didn't even clean it once.

Edit: I will add that my driveway slopes down and I always reverse into my driveway. So my car is parked at an uphill angle.

 

[Fountainhead]

I lifted the cosmetic lid on my engine last week and saw no evidence of moisture having moved any of the dust lying atop the coil/plug bodies or around them.
Mine isoutdoors 24/7. And it's parked on a slope up-hill. I park forward so my opening is slanted back.
I do see cracks where one could get water past the little air channel aluminum if one tried or during a hurricane sized rainstorm.

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