FR-S Valve Spring safety recall Ħɞ||

[ermax]

The instructions for this recall are more detailed than the original BRZ/FRS manual. It has details on the few vague areas that the original manual has. They also provided a new special tool which would eliminate issues with messing up the packing on the timing cover. But it sounds like they need to add "be careful when handling the timing cover for risk of cracking the OCV connectors". This is the second report on the forum where someone had a messed up OCV after the recall. The OCVs stick way out on all 4 corners so they are incredibly vulnerable.

[humfrz]

Originally Posted by ermax

The instructions for this recall are more detailed than the original BRZ/FRS manual. It has details on the few vague areas that the original manual has. They also provided a new special tool which would eliminate issues with messing up the packing on the timing cover. But it sounds like they need to add "be careful when handling the timing cover for risk of cracking the OCV connectors". This is the second report on the forum where someone had a messed up OCV after the recall. The OCVs stick way out on all 4 corners so they are incredibly vulnerable.

That's reassuring.

That would be the least of my worries.


humfrz

[ermax]

I am curious if there is much communication back to Toyota/Subaru on common problems that have come up after doing this job.

[humfrz]

I still want to know what is "wrong" with the "defective" valve springs?

* are they or do they just get weak?

* do they break, but stay in place?

* do they break and separate?

* do they break and allow the valve stem slip off the retainer?

* other?


humfrz

[jeffchap]

Originally Posted by humfrz

I still want to know what is "wrong" with the "defective" valve springs?

* are they or do they just get weak?

* do they break, but stay in place?

* do they break and separate?

* do they break and allow the valve stem slip off the retainer?

* other?


humfrz

Let's make a pact. Neither one of us will have the recall work done and if our car fails, we'll immediately let the other one know what happened.

Like you, I'm hesitant. So far my FR-S has been rock solid. I've never done anything to it besides oil changes.

I'm spooked by a co-worker's experience with his WRX. He had an engine replaced (dealership forgot to put oil back in after an oil change, d'oh!) and it never was right again. He had all sorts of problems, mostly electrical, over the next year and eventually traded it off.

Sent from my moto g(6) using Tapatalk

[humfrz]

Originally Posted by jeffchap

Let's make a pact. Neither one of us will have the recall work done and if our car fails, we'll immediately let the other one know what happened.

Like you, I'm hesitant. So far my FR-S has been rock solid. I've never done anything to it besides oil changes.

I'm spooked by a co-worker's experience with his WRX. He had an engine replaced (dealership forgot to put oil back in after an oil change, d'oh!) and it never was right again. He had all sorts of problems, mostly electrical, over the next year and eventually traded it off.

Sent from my moto g(6) using Tapatalk

Ya, I hear ya.

Maybe we could start a thread. People would sign up that have recalled twins and have NOT had the work done, nor plan on having it done. If and when their twin quits running because a valve spring failed , they would check in.





humfrz

[ermax]

Well when I did my rebuild I did a compression test while the engine was still out but only turning by hand and one was way down due to an intake valve leaking. Dropped a little oil down on the valve and it was still leaking. Removed the plug and put compressed air in there in an attempt to seal it better and it came up a lot. I then turned it over a bunch of times and although it was still a little low I wasn’t as concerned. I wanted to do another compression test after getting it back in the car and putting some miles on it but it’s such a bitch to get in there I just haven’t bothered. But after seeing this recall I almost wonder if the leaky valve was due to a weak spring.

I need to get in there and do another compression test before I do the recall and then another after.

[Zacharary]

My car was at the dealer for all of December 2016 for this issue, it’s interesting to see it as a recall now. May have to look around for the repair slip sometime.

[Tcoat]

Originally Posted by Zacharary

My car was at the dealer for all of December 2016 for this issue, it’s interesting to see it as a recall now. May have to look around for the repair slip sometime.

If you mean the valve spring issue then they will have it on record. If you were out of pocket for any expenses you may be able to claim them. Otherwise you just beat the rush.

[Tcoat]

Originally Posted by humfrz

I still want to know what is "wrong" with the "defective" valve springs?

* are they or do they just get weak?

* do they break, but stay in place?

* do they break and separate?

* do they break and allow the valve stem slip off the retainer?

* other?


humfrz

They break. What happens after that could be extremely variable depending on the circumstances at the time they break.
Best case you "run" on three cylinders.
Worst case you jam a valve someplace it don't belong and snap a rod or punch a hole in the head.

[ermax]

Something I found interesting in the repair docs is they point out that there is not only piston to valve interference on this engine but also valve to valve interference. Seems inevitable that a spring breaking on this engine will not end well.

[humfrz]

Originally Posted by ermax

Well when I did my rebuild I did a compression test while the engine was still out but only turning by hand and one was way down due to an intake valve leaking. Dropped a little oil down on the valve and it was still leaking. Removed the plug and put compressed air in there in an attempt to seal it better and it came up a lot. I then turned it over a bunch of times and although it was still a little low I wasn’t as concerned. I wanted to do another compression test after getting it back in the car and putting some miles on it but it’s such a bitch to get in there I just haven’t bothered. But after seeing this recall I almost wonder if the leaky valve was due to a weak spring.

I need to get in there and do another compression test before I do the recall and then another after.

Or it was "adjusted" (bucketed) too tight -


humfrz

[Tcoat]

Originally Posted by ermax

Something I found interesting in the repair docs is they point out that there is not only piston to valve interference on this engine but also valve to valve interference. Seems inevitable that a spring breaking on this engine will not end well.

I missed that! So it is a double interference engine. Crap, that would not be pretty at all.

[humfrz]

Originally Posted by ermax

Something I found interesting in the repair docs is they point out that there is not only piston to valve interference on this engine but also valve to valve interference. Seems inevitable that a spring breaking on this engine will not end well.

Well, shit - now I'm leaning to having the work done -


humfrz