jdfish 0 Posted April 26, 2020 Report Share Posted April 26, 2020 So I have searched and can't find out how to properly set up the springs for the actuator at the turbo end of the intake plenum pipe. It looks to me like the purpose of this mechanism is to prevent reverse intake pulse slowing the turbo down. Back when I bought the car one of the springs on this assembly was broken and I've never gotten around to fixing it. I simply cable tied it open and the car seems to run ok. Any help to explain the purpose of this thing and how to get it set up properly would be very much appreciated. Happy quarantine to all btw. Quote Link to post Share on other sites
jcslocum 97 Posted April 29, 2020 Report Share Posted April 29, 2020 I eliminated this restriction on my engine, I just tapped the holes and screwed small pugs in. Not sure what it did/does at the time. Quote Jon - 1984 Esprit Turbo Link to post Share on other sites
jdfish 0 Posted April 29, 2020 Author Report Share Posted April 29, 2020 Thanks Jon. I'm about to do the same after researching alot of engine pics online where this thing doesn't even appear to be installed. May be a North American requirement for emissions. Quote Link to post Share on other sites
jcslocum 97 Posted May 2, 2020 Report Share Posted May 2, 2020 Probably. These were bad years and lots of stuff was thrown at these engine to get compliance. Quote Jon - 1984 Esprit Turbo Link to post Share on other sites
esprit22 87 Posted May 4, 2020 Report Share Posted May 4, 2020 Never seen this before, what do they do? Quote Link to post Share on other sites
jcslocum 97 Posted May 5, 2020 Report Share Posted May 5, 2020 No idea...... Quote Jon - 1984 Esprit Turbo Link to post Share on other sites
andydclements 825 Posted May 5, 2020 Report Share Posted May 5, 2020 Is it to do with one of these? https://patents.google.com/patent/US5337715A/en Quote Link to post Share on other sites
jdfish 0 Posted May 12, 2020 Author Report Share Posted May 12, 2020 On 05/05/2020 at 09:25, andydclements said: Is it to do with one of these? https://patents.google.com/patent/US5337715A/en It's not an air by-pass, it fully restricts airflow when closed, thus my suspicion that it is related to emissions reduction or minimizing pressure blowback on the turbo when the throttle is closed Quote Link to post Share on other sites
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