Question about Lotus Elan
With the engine cold remove the turbo outlet hose and check for free rotation of the spindle. if it is ok check the wastegate capsule link arm mechanism is not seized as this is fairly common. if all is ok check the pipe work from the turbo outlet to the intercooler (lh side below airfilter headlaamp area) then from intercooler through up to inlet manifold. if all is ok, get a manual pressure gauge on the take off port at rear of inlet manifold should be a pipe blocked off with a rubber bung (lh side back of manifold) (lh side is gear box side of engine) drive car an see what the gauge reads. if it is registering boost then is often the manual boost transducer module on the right hand wheel arch by the cam belt cover that is not working so boost is there just does not register in the car.full boost is not achieved until car is at normal operating temp. if no boost turbo may need checking for wastegate operation or damage on the exhaust side. Hope this helps
Posted on Oct 05, 2008
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Posted on Jan 02, 2017
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