T-vis gone bad, engine damaged

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Re: T-vis gone bad, engine damaged

Postby Gert » Thu Sep 05, 2019 6:17 pm

I did not change them myself. My mechanic did that.
Because the head has been rebuild twice, the valve depth is pretty much, leaving little space for shims.
Scored some spare shims at the junk yard last monday, when I picked the nozzles up.
At the machine shop they made the shims fit between the cam and valves.
Unbelievable what difference it is. She fires right up and revolution is much nicer. Boost building up is getting better too.

We agreed to push another 5.000 kms, check valves again and than install the Forge actuator.

On a side note, some squiking noise came from the rear wheel this morning. Inspection showed us that one of the handbrake pads was loose on one end... sigh, always something with old cars. :cry:
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Re: T-vis gone bad, engine damaged

Postby Gert » Sat Oct 12, 2019 7:51 am

Antenna mast broke. Tried an cheap Ali one, but the plastic tooth piece does not fit. Bummer, was really cheap.
I am trying the dealer now.
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Re: T-vis gone bad, engine damaged

Postby Gert » Sat Oct 12, 2019 7:53 am

Oh well, the rectifier died too (again *sigh*). Installed an rebuilded alternator now.
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Re: T-vis gone bad, engine damaged

Postby 88gt4DE » Fri Nov 29, 2019 7:00 pm

Its always something. My list for Bear Mountain is growing. I need to get started but two jobs and 7 days a week is killing me :?
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Re: T-vis gone bad, engine damaged

Postby Gert » Wed Jan 22, 2020 6:43 pm

Okay, here is the deal. Compression is gone again, after another 3.500 kms.
Checked valves, too thight again.
Hmmm, wait, that is not good.
Checked the internet and it appeared that some Ferrea valves cannot handle the 3S head... sigh. Guess what is in my car.
I should have checked this before buying, but that is too late now. I contacted the importer in Europe and let see what is coming out.

Contacted the Toyota dealer too. Intake valves are deliverable, exhaust not. About 50 euro's each, ex VAT.

So, the head has to come off again. Was there nobody on this forum who could warn me :-)

https://www.mr2oc.com/threads/engle-val ... 599/page-2
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Re: T-vis gone bad, engine damaged

Postby underscore » Wed Jan 22, 2020 8:40 pm

You seem to have very bad luck, my sympathies. This is the first I've heard of issues with any of the valves available for this engine. Skimming the start of that thread though it sounds like the issue lies more with the Engel springs he used?
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Re: T-vis gone bad, engine damaged

Postby FC Zach » Thu Jan 23, 2020 4:19 am

underscore wrote:it sounds like the issue lies more with the Engel springs he used?


That's how I interpreted it too.
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Re: T-vis gone bad, engine damaged

Postby Gert » Thu Jan 23, 2020 6:09 am

FC Zach wrote:
underscore wrote:it sounds like the issue lies more with the Engel springs he used?


That's how I interpreted it too.

You should read the entire discussion on MR2. Then you find out it is in the valves.
My engine is equipped too with the engle springs. But, they are there since 2002 and since 2005 with 264 HKS cams and stock valves. So, no problems with this combo in 18 years and about 100.000 kms.

Perhaps I should find me some good used Toyota valves.
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Re: T-vis gone bad, engine damaged

Postby Gert » Tue Jan 28, 2020 6:27 am

Strange, the dealer is not giving new part numbers if they fit from an other car. So, when I asked for my own valves, they don't have/give other options who might fit. Result: do it yourself:

Second gen 3S valves:
In = 13711-88362 = ± 55 euro ex vat.
Ex = 13715-88361 = not deliverable
Third gen:
In = 13711-88460 = not deliverable.
Ex = 13715-88480 = ± 65 euro ex vat.
Fourth gen:
In =13711-88580 = ± 35 euro ex vat.
Ex = 13715-88480 = same as third gen.
Delivery time: approx four weeks, they think...!!

Well, since 3S valves almost never crash, we decided to trace a set of good used valves and install those.
Valves are probably here by wednesday. Head gasket is ordered, so hopefully no long down time.
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Re: T-vis gone bad, engine damaged

Postby Gert » Tue Apr 21, 2020 12:59 pm

Finally got the car back.
I got myself a spare head and some extra valves and gave it to the rebuilder.
He swapped the intake valves only and left the exaust Ferrea's in place.

Took some time, since the rebuilder was very busy, but due to corona and no races to do, suddenly he had plenty of time.

Anyway, engine is going strong, but still struggeling with boost levels. The CT27 and me is not a good marriage. Divorce is on the way, I suppose. :shoots:

The guy who sold me the Ferrea's is doing nothing too, told me: bad luck. I mailed Ferrea in the USA, but they do not answer at all. I mean: how bad is it if in 2012 it appears the Ferrea's are not good and in 2019 you deliver some of them to be installed.....
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Re: T-vis gone bad, engine damaged

Postby Gert » Wed Apr 29, 2020 8:00 pm

Can you believe that, my other used oem 3S-GTE is cracked too now....pffff.

Is somebody having a new manifold laying around? I suppose not...... :cry:
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Re: T-vis gone bad, engine damaged

Postby Magroo » Thu Apr 30, 2020 12:43 am

What gen? Intake or exhaust?
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Re: T-vis gone bad, engine damaged

Postby Gert » Thu Apr 30, 2020 6:17 am

Seven bolt, second gen, exhaust.

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Re: T-vis gone bad, engine damaged

Postby Magroo » Thu Apr 30, 2020 9:51 pm

I think I have a spare one in my shed. I will check tomorrow.
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Re: T-vis gone bad, engine damaged

Postby Gert » Tue May 05, 2020 6:12 pm

Tested the car yesterday. Added 5 mm spacer between the wastegate to provide more pre-tension. Now she sees 0.7 bar minimum and 1 bar easily. With the EBC set at 1.0 bar, boost is dropping a little above 6.500 rpm now, to around 0.9 bar.
I think I can live with that.
The Forge is installed with an 0.8 bar spring, but I too have a 1.0 bar spring.
But, if I swap that, I have to test again and if the wastegate pre-tension needs to be adjusted, I cannot reach the wastegate's little spring on the arm and I have to disassemble a lot again to get to this spring... sigh.
So, I think I keep the 0.8 spring with pre-tension now tested.
Since the exhaust manifold needs to be swapped, that is no problem.

Oh, and the 45 mm Omori temp gauge died. Always something...

Hmm, maybe this topic needs to be removed to the project section? Dunno.
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