Well had it off yesterday

Guest · Aug 16, 2004

The Tial Wastegate that is!!!!!!!

Still not sealing properly, but this time it was the adaptor plates.

I am abit p1ssed off that they were not properly attached by SFR. They should have been tightened right up with threadlock.

I managed to get it off to find that the small blow had actually damaged the gasket on the adaptor plate, so copious amounts of exhaust paste later and all threadlocked up it now seems sorted (but for how long?)

I might buy a couple of new gaskets just in case"¦

Much better now its all sealed, the exhaust note is more meaty now that all the gasses go through to the rear pipe. I am sure the pick up is much better too.

Also spent a few hours with a 000 brush and some touch up paint (specially made as Porsche no longer do it!!) What a difference, it still needs more work (mainly the mirrors) but am very pleased.

Will get it all washed and another coat of Zymol Titanium on it on Tuesday.

John Sims · Aug 16, 2004

The Tial Wastegate that is!!!!!!!

Perhaps a slightly less cryptic heading might help others to spot a reasonable thread Slim. [

]

Welcome to HALT Had A Loose TiAL

I'm not sure if anyone with the SFR brackets hasn't had problems. I did e-mail SFR on several occaisions, following mine comming loose, requesting new bolts and gaskets but to no avail. What a great supplier. It is just as well they are in America or I'd be banging on their door.

Perhaps there is enough of us now that we could prove their product is not "fit for purpose".

Regards

John

HALT Founder Member

Guest · Aug 16, 2004

ORIGINAL: John Sims

Perhaps a slightly less cryptic heading might help others to spot a reasonable thread Slim. []

Welcome to HALT Had A Loose TiAL

I'm not sure if anyone with the SFR brackets hasn't had problems. I did e-mail SFR on several occaisions, following mine comming loose, requesting new bolts and gaskets but to no avail. What a great supplier. It is just as well they are in America or I'd be banging on their door.

Perhaps there is enough of us now that we could prove their product is not "fit for purpose".

Regards

John

HALT Founder Member

Not atol that's a fine title, bet theres about 100hits on it lolsss

I can see why they couldn't just threadlock the bolt in, when I took the wastegate off the bolts holding the gate to the adaptor plates were almost finger loose!!! Its very annoying, even a simple statement in the instructions, Warning "" Ensure bolts are fully tightened and locktight (or similar) is used. It might even have been better if the adaptor plates were permanently attached (weld or otherwise)

I really do notice a considerable increase in pickup with the proper seal (and I don't think its my imagination!!)

No question SFR could do things slightly better.

On a different note, I noticed last night that I still cant hold more than 15psi in 4th and 5th above 4000rpm.

2nd 3rd I can hold 18psi.

Wonder if that's the turbo. I thought the K26/8 was able to hold upto 20psi? Does this mean the turbo might be on its way out I wonder?

John Sims · Aug 16, 2004

Not atol that's a fine title, bet theres about 100hits on it lolsss

Well 18 so far and at least 3 are from you and 3 are from me, so that is 12 others. [8|]

Ensure bolts are fully tightened and locktight (or similar) is used.

I don't know if threadlock would work on exhaust components as, I believe, it will just burn away ultimately leaving the bolts looser than if they had been tightened without. I assume a lot depends on the product of course.

I have pondered replacing the bolts with studs, and cross pinning then into the addaptors, so that I can use lock nuts. This does seem a lot of hassle on a product which should have been sorted by the supplier though.

At the moment I'm hoping that, having tightening up the bolts as hard as possible, they should stay where they are.

Guest · Aug 16, 2004

ORIGINAL: John Sims

I don't know if threadlock would work on exhaust components as, I believe, it will just burn away ultimately leaving the bolts looser than if they had been tightened without. I assume a lot depends on the product of course.

I have pondered replacing the bolts with studs, and cross pinning then into the addaptors, so that I can use lock nuts. This does seem a lot of hassle on a product which should have been sorted by the supplier though.

At the moment I'm hoping that, having tightening up the bolts as hard as possible, they should stay where they are.

Yes you might be right about the threaddlock, i havnt seen a product data sheet but i believe the 'normal' stuff is up to about 250degC and the hit temp stuff is about 450degC. Unfortunatly its the cheap normal stuff i used. Not sure how hot the metal arond the wastegate will get to but i bet its over 200degC.

Might be back to the drawing board (saying that i tightened it very very hard....

Diver944 · Aug 16, 2004

ORIGINAL: slim_boy_fat

On a different note, I noticed last night that I still cant hold more than 15psi in 4th and 5th above 4000rpm.

2nd 3rd I can hold 18psi.

Wonder if that's the turbo. I thought the K26/8 was able to hold upto 20psi?

I've had this chat with Danno as I can't hold 15psi to the redline, he has said that yes the 26/8 will make up to about 20psi but it just can't flow enough air to maintain it all the way to the redline, hence our boost loss as the revs rise. A hybrid Turbo [8D] is the only answer I'm afraid.

I'm looking forward to how Rick gets on when he fits his, or when Andrew starts modifying his yet to be purchased 422 replacement [

]

944Turbo · Aug 16, 2004

I think the gaskets may be the problem, I think they start to disintegrate and this then gives the effect of looser bolts, which then rattle even looser.
Tony

Guest · Aug 16, 2004

ORIGINAL: Diver944

ORIGINAL: slim_boy_fat

On a different note, I noticed last night that I still cant hold more than 15psi in 4th and 5th above 4000rpm.

2nd 3rd I can hold 18psi.

Wonder if that's the turbo. I thought the K26/8 was able to hold upto 20psi?

Click to expand...

I've had this chat with Danno as I can't hold 15psi to the redline, he has said that yes the 26/8 will make up to about 20psi but it just can't flow enough air to maintain it all the way to the redline, hence our boost loss as the revs rise. A hybrid Turbo [8D] is the only answer I'm afraid.

I'm looking forward to how Rick gets on when he fits his, or when Andrew starts modifying his yet to be purchased 422 replacement []

too rich for me this coming year. I will be doing some work on the brakes during the winter, will get it dynoed and get the chips customised.

After that i think i will lok into upgrading the suspention. Either just replace all the old tied Konis with new ones or go for Coilover kit. Along with the bushes and poss the 968M030 ARB. But then again i might just put fuel into it and drive the thing!!!

John Sims · Aug 16, 2004

Not sure how hot the metal arond the wastegate will get to but i bet its over 200degC.

[8|] I think there could be times when 200degC might be exceeded. [

]

Guest · Aug 16, 2004

Thats hot John, by the time its gone into the other section of the exhaust it will be much cooler (relativly speaking) say 200-300degC cooler. That still means about 500degC around the wastegate...

Dont fancy the chances of a nylon locknut surviving that temp either. Wonder if just longer studs tightened right up then a nut on the other side again tightened right up, with some high temp threadlock.

Will wait and see if mine is holding, it only takes a few hundred mile for them to loosen off, as this will be the 3rd attempt. The second one i got my mechanic to do it, he repaced both exhaust gaskets and tightened it all up with paste, and that seals great, not a problem. I should have just got him to do the adaptor plates at the same time just didnt think...Doh...

Fingers crossed.