Boost Leaks- how to find them... pics inside
#32
Just an Update...
I found all the leaks and fixed them...
As I mentioned before the O ring behind the TB was leaking... here is a pic of the old and the new one ready to go in... see the difference is thickness?
then I found the after market DV leak where the top of the dv head screws to the bottom body... I took it out.. tightened the screws but still no go...
so they came out and we put in 710Ns...
http://youtu.be/fS0Q_zBgMMc
Then the test at the Tb and BINGO....
Hope this was informative...
best
Markski
I found all the leaks and fixed them...
As I mentioned before the O ring behind the TB was leaking... here is a pic of the old and the new one ready to go in... see the difference is thickness?
then I found the after market DV leak where the top of the dv head screws to the bottom body... I took it out.. tightened the screws but still no go...
so they came out and we put in 710Ns...
http://youtu.be/fS0Q_zBgMMc
Then the test at the Tb and BINGO....
Hope this was informative...
best
Markski
__________________
2001 996TT 3.6L and stock ECU
9.66 seconds @ 147.76 mph 1/4 mile click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL
2001 996TT 3.6L and stock ECU
9.66 seconds @ 147.76 mph 1/4 mile click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL
Last edited by markski@markskituning; 10-15-2011 at 04:09 PM.
#34
Markski, have you ever used a smoke tester ? Works very well for pressure test no more have to listen and find it. Just see the smoke coming out and you found it .After the dealer rebuilt the motor in my 997 turbo under warranty it came back with about 5 leaks and the smoke tester made life so easy. It's something every shop should invest in.
Chris Green
Chris Green
#35
Markski, have you ever used a smoke tester ? Works very well for pressure test no more have to listen and find it. Just see the smoke coming out and you found it .After the dealer rebuilt the motor in my 997 turbo under warranty it came back with about 5 leaks and the smoke tester made life so easy. It's something every shop should invest in.
Chris Green
Chris Green
I never used it... .. Idk but I dont think it works with more then 5 psi... thus on this car the the leak showed only at 1 bar and up... again IDK if the smoke test would pick it up.. Im used to it old school style.. windex bottle with soap and water lol
__________________
2001 996TT 3.6L and stock ECU
9.66 seconds @ 147.76 mph 1/4 mile click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL
2001 996TT 3.6L and stock ECU
9.66 seconds @ 147.76 mph 1/4 mile click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL
#36
Mark actually did this test on my car not too long ago. A few months before I brought it to him, I had a smoke test done at a Porsche shop and they said that the car had 0 leaks. It still felt a little lazy for a twin turbo, but I trusted the shop since I am not a tech and went on with my day. I'm really glad that Mark did his pressure test on the car since the smoke test didn't pick up anything. Maybe they didn't have high enough PSI and that was the issue, but as you can see in the pics and vids, Mark was able to find them and obviously resolve them. It feels like a whole new animal and I recommend anyone with a Turbo car to have them done.
Last edited by Blue Beast TT; 10-16-2011 at 09:17 PM.
#37
95 percent of leaks you will find with the smoke tester but if I get a car that has a boost problem and the smoke tester comes up negative I switch to the old school tester like yours.
#38
Aha good to know.. thanks...
__________________
2001 996TT 3.6L and stock ECU
9.66 seconds @ 147.76 mph 1/4 mile click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL
2001 996TT 3.6L and stock ECU
9.66 seconds @ 147.76 mph 1/4 mile click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL
#40
smoke tester is really nice to start with and find the obvious issues. like vac leaks around the TB on the left and vac leaks around the N75 valve or in other places. anything beyond that such as DVs and hose connections wont show up until you get some real pressure in there 1.0+ bar.
__________________
#TeamAIM
997TT SilverSpool - 210.8 mph 1/2 Mile WR Apr 2019, 9.2 @ 168 mph 1/4 Mile Manual World Record , 3.15 60-130 mph , 2.72 100-150 mph , 1400whp E85
996TT SpoolBus - 204.6 mph 1/2 Mile 996TT WR Aug 2018, 9.5 @ 154 mph, 3.23 60-130 mph, 2.5 100-150 mph Manual Porsche World Record, 1400whp E85
997TT SlowBerry - 205.0 mph 1/2 Mile WR Nov 2018, 9.7 @ 170 mph 1/4 Mile , 3.2 60-130 mph , 2.4 100-150 mph , 1420whp E85
ESMOTOR | DO88 | TPC DSC | SYVECS | COBB | IPD | KLINE | XONA | AMS | ID | ERP | SACHS | TURBOSMART | CSF | DODSON |
#TeamAIM
997TT SilverSpool - 210.8 mph 1/2 Mile WR Apr 2019, 9.2 @ 168 mph 1/4 Mile Manual World Record , 3.15 60-130 mph , 2.72 100-150 mph , 1400whp E85
996TT SpoolBus - 204.6 mph 1/2 Mile 996TT WR Aug 2018, 9.5 @ 154 mph, 3.23 60-130 mph, 2.5 100-150 mph Manual Porsche World Record, 1400whp E85
997TT SlowBerry - 205.0 mph 1/2 Mile WR Nov 2018, 9.7 @ 170 mph 1/4 Mile , 3.2 60-130 mph , 2.4 100-150 mph , 1420whp E85
ESMOTOR | DO88 | TPC DSC | SYVECS | COBB | IPD | KLINE | XONA | AMS | ID | ERP | SACHS | TURBOSMART | CSF | DODSON |
#44
No I do not.. sorry...
__________________
2001 996TT 3.6L and stock ECU
9.66 seconds @ 147.76 mph 1/4 mile click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL
2001 996TT 3.6L and stock ECU
9.66 seconds @ 147.76 mph 1/4 mile click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL