TIAL 40mm WASTEGATE

[edmundturner]

Hi guys and gals,
Just need someone to confirmed this.
1.) I recently picked up a second hand TIAL wastegate. The guy who sold it to me said it was a 35mm.
Funnily after i got home, i noticed that it looked like a 40mm wastegate!,
I measure the inlet valve and it was 40mm but when i measured the outlet valve (downpipe to atmosphere) , it was only 35mm.
What actually is a 40mm wastegate? How do you measure this ? the seating valve or the outlet valve?????

2.) Are all TIAL wastegates diagphrams similar?
Just incase i have to replace it!

regards
edmund

 

[psychlow]

Looks like a 40mm to me.

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[edmundturner]

Ive never used a TIAL wastegate before. I was told that it does not require a gasket for any of the flanges, is this true? I notice the 40mm valve has a sealing ring which looks like it does not need a sealing ring.


any idea?

edmund

 

[diambo4life]

I don't use any gaskets on my 35mm Tial. It doesn't leak at all. So, Yeah! You may do without it and that's definitely not a 35mm if you were still wondering. The picture above shows the differences between the two.

 

[fp-green-95tsi]

That is a tial 40mm, as stated already!

 

[alexg1323]

thats a 40mm and you need to take that cap out of the top of the housing and let it vent to atmoshpere for the wastegate to open properly

 

[edmundturner]

THANKS to ALL !!!
I will remove the cap of the 40mm wastegate, and I will let it vent freely.
Again, appreciate the advice!!!

cheers!

edmund

 

[marq95gst]

Take the cap off the WG!? R U SRS??? I know this is old, but damn, hope that guy figured that one out!

 

[talonDSMerr]

I think he meant the silver fitting in the middle of the top of the cap.