nissan patrol

Submitted: Wednesday, Oct 29, 2003 at 22:34
ThreadID: 8191 Views:1397 Replies:3 FollowUps:1
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G'day All

i have A nissan patrol tb42 and my revs seem to stay high or it takes it time to drop to idle when i release the excellerator this is annoying when gear changing cause it sounds like im riding the clutch can some one please tell me if this normal or adjustable, much appreciated

cheers paul
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Reply By: diamond(bendigo) - Thursday, Oct 30, 2003 at 00:05

Thursday, Oct 30, 2003 at 00:05
gday pauly.
im not familiar with td42.
but id be checking throttle return spring and accelerator cable firstback by popular demand
:-)
AnswerID: 35662

Reply By: Stevo - Thursday, Oct 30, 2003 at 08:36

Thursday, Oct 30, 2003 at 08:36
Gooday Paul, the cause of your "problem" is the BCDD or Boost Control Deceleration Device. It is a valve that plays a part in pollution control by allowing additional air and fuel into the inlet manifold during sudden deceleration. This ensures that unburnt fuel is not emitted into the atmosphere. It is activated by a high intake manifold vacuum, can be easily disconected but inadvisable
AnswerID: 35668

Follow Up By: Gerry - Thursday, Oct 30, 2003 at 08:56

Thursday, Oct 30, 2003 at 08:56
I agree - had the same thing happen to me. It is adjustable. On the side of the carby nearest the motor (passenger side) there is a small rubber grommet, take this out and you will find a small adjusting screw. Turning this a couple of turns anti-clockwise (I think that's right) should fix it. There is an adjustment procedure described in most workshop manuals if you want more info.
Cheers
Gerry
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FollowupID: 25761

Reply By: Pauly - Thursday, Oct 30, 2003 at 15:22

Thursday, Oct 30, 2003 at 15:22
Thanks for the input much appreciated
AnswerID: 35714

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