Sticky throttle on a turbo car

[vex]

Not a question, just something REALLY interesting that I found out the other day.

So the car was running GREAT, throttle body not giving me ANY problems whatsoever, and this was after I totally disassembled it (including butterfly shafts and seals) to have it ceramic coated. The thing ran great for a few weeks and made pull after pull on the dyno with no problems at all. Then some fucktards overheated it. So I'm driving down to NC and I drop 2 gears to get ahead of a slower car (oh a hondu ), redline in 3rd and shift, the car over revs', odd, then I hit 4th and tap the brakes becuase, well I'm doing 90+ in a 55. The revs drop in 4th and then the car starts to accelerate on it's own..... a little frightening.

We pull over and I find that the secondaries are sticking. So I put them back in their place and we continue on our way. The problem gets more and more frequent as the w/e wears on until it finally starts happening EVERY SINGLE TIME I GET MORE THAN 3lbs of boost. What I found was........... interesting

The boost was pushing the aft secondary throttle shaft seal out of place and binding against the throttle stopper keeping the secondaries from closing. So with a little motivation from a flathead screwdiver I pushed it back into place. 1st gear pull - cool, second gear pull....... stuck again - now I'm seeing red.

So I get the car home and get it as hot as I can - ~185* clean the seal where it presses into the TB and smear a little loctite 262??? the red threadlocking stuff around the press seal and wedge it back into place. Let the car cool, and proceed to BEAT THE SHIT OUT OF HER for 2 hours..... the seal hasn't pinned the stopper yet.

Just thought I'd share if anyone is having sticking throttle issues.... one more bizzare thing to check.

[TitaniumTT]

Not a question, just something REALLY interesting that I found out the other day.

So the car was running GREAT, throttle body not giving me ANY problems whatsoever, and this was after I totally disassembled it (including butterfly shafts and seals) to have it ceramic coated. The thing ran great for a few weeks and made pull after pull on the dyno with no problems at all. Then some fucktards overheated it. So I'm driving down to NC and I drop 2 gears to get ahead of a slower car (oh a hondu ), redline in 3rd and shift, the car over revs', odd, then I hit 4th and tap the brakes becuase, well I'm doing 90+ in a 55. The revs drop in 4th and then the car starts to accelerate on it's own..... a little frightening.

We pull over and I find that the secondaries are sticking. So I put them back in their place and we continue on our way. The problem gets more and more frequent as the w/e wears on until it finally starts happening EVERY SINGLE TIME I GET MORE THAN 3lbs of boost. What I found was........... interesting

The boost was pushing the aft secondary throttle shaft seal out of place and binding against the throttle stopper keeping the secondaries from closing. So with a little motivation from a flathead screwdiver I pushed it back into place. 1st gear pull - cool, second gear pull....... stuck again - now I'm seeing red.

So I get the car home and get it as hot as I can - ~185* clean the seal where it presses into the TB and smear a little loctite 262??? the red threadlocking stuff around the press seal and wedge it back into place. Let the car cool, and proceed to BEAT THE SHIT OUT OF HER for 2 hours..... the seal hasn't pinned the stopper yet.

Just thought I'd share if anyone is having sticking throttle issues.... one more bizzare thing to check.