Yom
17-01-2008, 10:44 PM
Hi Folks,
Well, bear with me here. After the saga (which I blew way out proportion) with my injector pump change, the patrol is back and driving quite well. Not nearly as much power as it had before all this, but its blowing alot less smoke so the fueling must have been turned up a bit on the old one.
So while I'm happy (actually no, ecstatic) to be able to drive it around at the moment and not hold up sloths, I'm still a bit worried about two things and as I'm sure the poor mechanics are well and truely sick of seeing me (i know i would be) I would like to see if theres a chance anyone has experienced something similar so I could at least figure out if I need to pick up the phone again or not. :(
Basically between idle (which now seems to be around 850 to 900rpm which seems a little higher than standard, but i like it so im not whinging) there's a strange, almost harmonic, vibration through the vehicle. CLutch in or out, doesnt matter. It was there after the new injectors were put in - when the idle was down at 650rpm and it was quite noticeable in that it felt like an old truck rather than the fairly smooth engine it was beforehand. It sort of goes away between 900rpm and 1200rpm but then comes back between that point and around 1600rpm. After this point, it runs rather nice and smooth.
Its only noticeable when the engine is under no load. What worries me is that this doesn't sound injector related - an injector problem typically shows all through the rev range?
Now ordinarily I wouldn't fuss too much about this but something else which is different about the old girl is that it is louder. As in the engine itself is physically louder than it used to be - there's alot more tappy noise from the top end.
OIL - CHANGED. No change.
Is it possible the severe knocking it experienced when one of the old injectors "died" has damaged a piston or a valve? It was a bloody nasty knock and saw mabye 3 to 4 seconds of 2300rpm before I backed off realising the noise was coming from the engine, from there I had to give it around 1000rpm to get up a hill and down my driveway which is quite long (any less RPM it just didnt have the power to do it).
Sorry for the long winded post but its best to explain properly I guess.
Well, bear with me here. After the saga (which I blew way out proportion) with my injector pump change, the patrol is back and driving quite well. Not nearly as much power as it had before all this, but its blowing alot less smoke so the fueling must have been turned up a bit on the old one.
So while I'm happy (actually no, ecstatic) to be able to drive it around at the moment and not hold up sloths, I'm still a bit worried about two things and as I'm sure the poor mechanics are well and truely sick of seeing me (i know i would be) I would like to see if theres a chance anyone has experienced something similar so I could at least figure out if I need to pick up the phone again or not. :(
Basically between idle (which now seems to be around 850 to 900rpm which seems a little higher than standard, but i like it so im not whinging) there's a strange, almost harmonic, vibration through the vehicle. CLutch in or out, doesnt matter. It was there after the new injectors were put in - when the idle was down at 650rpm and it was quite noticeable in that it felt like an old truck rather than the fairly smooth engine it was beforehand. It sort of goes away between 900rpm and 1200rpm but then comes back between that point and around 1600rpm. After this point, it runs rather nice and smooth.
Its only noticeable when the engine is under no load. What worries me is that this doesn't sound injector related - an injector problem typically shows all through the rev range?
Now ordinarily I wouldn't fuss too much about this but something else which is different about the old girl is that it is louder. As in the engine itself is physically louder than it used to be - there's alot more tappy noise from the top end.
OIL - CHANGED. No change.
Is it possible the severe knocking it experienced when one of the old injectors "died" has damaged a piston or a valve? It was a bloody nasty knock and saw mabye 3 to 4 seconds of 2300rpm before I backed off realising the noise was coming from the engine, from there I had to give it around 1000rpm to get up a hill and down my driveway which is quite long (any less RPM it just didnt have the power to do it).
Sorry for the long winded post but its best to explain properly I guess.