supra900bhp Posted April 11, 2013 Share Posted April 11, 2013 Just when thought things was going ok with the rebuild things now gone tits up!! :( I have removed the engine and box as one unit for full respray. I have then removed all vacuum pipes and redone them in silicone as was cracking one pipe at a time so did not mess any up!! now refitted engine all plumed back in and now turns over and fires up but die's more or less right away and can not fill air being sucked in through the intake?? BUT!! if I pull this pipe off it starts up and runs fine and ticks over fine about 1200rpm but if up the revs to about 2000-2500rpm it hunts up and down badly and still not sucking through air filter????? so all air in is going through this little pipe but if you push pipe back on the cam cover it die's??????????????????? Please give me some ideas what I done wrong as Im gonna get the right arse ache with it soon lol cheers guys Quote Link to comment Share on other sites More sharing options...
supra joe Posted April 11, 2013 Share Posted April 11, 2013 Odd running and no guts.... You sure someone hasn't dropped an N/A lump in there. Quote Link to comment Share on other sites More sharing options...
SPG Posted April 12, 2013 Share Posted April 12, 2013 This is not related most probably, but in the picture you supplied, why is there a rust bolt in that "T" piece? That pipe should be part of the cam cover breather system, are you sure that you don't have a loose boost pipe etc. when you have the pipe disconnected and the car dies, have you tried controlling the revs with the throttle linkage to see if you can keep her running? Could be a few things happening, so more info would be good cheers Quote Link to comment Share on other sites More sharing options...
antno Posted April 12, 2013 Share Posted April 12, 2013 You haven't sucked a piece of rag in the engine and its blocked up the turbo. Or the turbo isn't spinning for some reason Quote Link to comment Share on other sites More sharing options...
d-_-b Posted April 12, 2013 Share Posted April 12, 2013 (edited) Have you checked that the butterfly valves on the intake manifold both operate ok? One of them might be stuck closed/not opening and so its using that breather pipe point on the intake manifold as 'the intake'.? - worth a quick eyeball! Edited April 12, 2013 by d-_-b (see edit history) Quote Link to comment Share on other sites More sharing options...
TheTurtleshead Posted April 12, 2013 Share Posted April 12, 2013 That lovely rusty bolt is blocking up a pipe on the map sensor vacuum circuit. If it's leaking then your sensor won't be seeing the correct level of vacuum in the manifold.... could cause all sorts of problems. Worth a shot. Quote Link to comment Share on other sites More sharing options...
supra900bhp Posted April 12, 2013 Author Share Posted April 12, 2013 Odd running and no guts.... You sure someone hasn't dropped an N/A lump in there. nah even though she running bad she still quicker than a N/A Quote Link to comment Share on other sites More sharing options...
supra900bhp Posted April 12, 2013 Author Share Posted April 12, 2013 That lovely rusty bolt is blocking up a pipe on the map sensor vacuum circuit. If it's leaking then your sensor won't be seeing the correct level of vacuum in the manifold.... could cause all sorts of problems. Worth a shot. tha rusty nut was first thing i had to hand and that pipe is where the boost gauage pipe was fixed to is that right?? Quote Link to comment Share on other sites More sharing options...
supra900bhp Posted April 12, 2013 Author Share Posted April 12, 2013 b;3640231']Have you checked that the butterfly valves on the intake manifold both operate ok? One of them might be stuck closed/not opening and so its using that breather pipe point on the intake manifold as 'the intake'.? - worth a quick eyeball! yes mate the first butterfly is open and second is closed but when i up the revs on the cable it moves as it should and first butterfly dose not but still dont really fill much if any air being pulled in it still suckin through the cam breather?? Quote Link to comment Share on other sites More sharing options...
mellonman Posted April 12, 2013 Share Posted April 12, 2013 yes that could well be but it also is the map sensor feed make sure that there is no leaks anywhere specailly there, just replace all vac pipes its cheap stuff and well worth it. this is a reply to post 8 Quote Link to comment Share on other sites More sharing options...
Dnk Posted April 12, 2013 Share Posted April 12, 2013 What silicon hose have you used and where, i've heard some members have had problems using certain types on vacuum lines and it not being up to the job Quote Link to comment Share on other sites More sharing options...
supra900bhp Posted April 12, 2013 Author Share Posted April 12, 2013 What silicon hose have you used and where, i've heard some members have had problems using certain types on vacuum lines and it not being up to the job I have used all vacuum hose's and couple reinforced pipes for heater pipes for heater matrix from auto silicone hoses ltd all looked good thick walled etc Quote Link to comment Share on other sites More sharing options...
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