Sienna PI Posted February 25 Share Posted February 25 Hi All! I have just had a vacuum (smoke) test on my mk2 PI. Would anyone know if it is correct for the smoke to appear from :- i) Where the butterfly linkage spindle inserts into the the throttle bodies? (This is appearing on all three bodies). ii) From the bottom of the Vacuum dome (which is screwed down with four set screws? (This is the "seam" just below the vacuum intake union and not he union itself). Both units are newly reconditioned. I'm just concentrating on the vacuum side at the moment!!!! Any help appreciated. Dave. 1 Quote Link to comment Share on other sites More sharing options...
glang Posted February 25 Share Posted February 25 Of these two issues the most worrying is the vacuum dome as this should have a tightly sealed joint. You should be able to suck on the vacuum connection to it and block it with your tongue so it holds vacuum... 1 Quote Link to comment Share on other sites More sharing options...
Sienna PI Posted February 27 Author Share Posted February 27 Many thanks for your response glang! Dave. Quote Link to comment Share on other sites More sharing options...
glang Posted February 27 Share Posted February 27 Yes the spindles not so worrying as theres always going to be some leakage and its effect should be minimal... With the vacuum dome maybe its been distorted or theres a burr or something stopping it seating properly? Again although it has to be corrected the effect is probably small but have you got a running problem? 1 Quote Link to comment Share on other sites More sharing options...
Sienna PI Posted February 29 Author Share Posted February 29 Thanks for your reply glang. Yes, not quite running correct! Seems down on power at top end and feels like a minor mis-fire. I have now booked it in at Moordale Motors as I have another issue that I want Dale and co to look at for me! Cheers, Dave. Quote Link to comment Share on other sites More sharing options...
Wendy Dawes Posted February 29 Share Posted February 29 1 hour ago, Sienna PI said: Thanks for your reply glang. Yes, not quite running correct! Seems down on power at top end and feels like a minor mis-fire. I have now booked it in at Moordale Motors as I have another issue that I want Dale and co to look at for me! Cheers, Dave. Dale is the man what he doesn’t know isn’t worth knowing 👍 Quote Link to comment Share on other sites More sharing options...
Sienna PI Posted March 3 Author Share Posted March 3 Agreed!!!!! Quote Link to comment Share on other sites More sharing options...
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