When the engine is cold, this unit pulls the throttle to run the car about about 2000rpm. As it warms up, the little lever pulls out and the idle returns to normal.
The pellet in i've highlighted in the pic you'll notice is connected to the water supply through the engine. This pellet normally gets old and jammed, hence why it's not working!
hmm, I think that its seperate from the cold start,
I can see the water pellet and how that works, it pushes up when warm and releases the throttle slightly.
This unit appears to be seperate as it has no linkages to the cold start "pellet" and isn't capable of pushing the throttle in any way as it can only move in the direction away from the throttle.
The throttle opens clockwise, the pivot for this device can only move anti-clockwise away from the throttle, but can be adjusted so that the arm can be pushed when the throttle closes hence altering the little diaphram up the top to adjust something.
Any other suggestions or confirmation? Specific operation descriptions?
Powerplant: Chipped stock ECU, 2044cc, 8.5:1, head intake enlarged and polished, exhaust manifold enlarged,
Balance-shafts eliminated, Intercooled, TC06 @ 10psi, 2.5" high flow exhaust system and dump pipe.
I personally throw this thing away when it sh-ts me and havent had
issues without it..................................(I think)...................
when you back off the throttle the engine gets high vaccum and
the dash pot will pull up causeing the motor to rev to 2000+ for
just maybe 2-3 seconds, activating the EGR (I think) and it does it when you change gear (you know ?????????????)
Cheers:Phil.
Thanks Tri26t,
Thats pretty much what I suspected it was for, could you possibly e-mail me a copy of that pic full sized? Would be nice to store that somewere for the future. daunger99@hotmail.com
Cheers
Dallas
Powerplant: Chipped stock ECU, 2044cc, 8.5:1, head intake enlarged and polished, exhaust manifold enlarged,
Balance-shafts eliminated, Intercooled, TC06 @ 10psi, 2.5" high flow exhaust system and dump pipe.
Mine works fine.............justs needs to be adjusted correctly, it holds the revs at 1100rpm beautifully when changing gears or stopping suddenly before returning to base idle.
thats exactly what it is,
if you can live without it throw it ("throw i now")
I know sometimes when you back off the gas from
high revs it will nearlly stall but its better than your
car trying to take off when gearing down.
Chryzla wrote:but when it gets old and tired it takes a month to let the revs drop...
You can actually adjust old & tired ones - there's a hex-head brass plug on the firewall side of the dashpot (between the round bit and the square bit) which you can loosen. This will bleed a little air from the dashpot and allow it to operate better. Loosen it a very small amount at a time (say 1/4 turn) until it operates correctly, and then put a small dab of glue on it to make sure vibrations don't affect the position.
Starion nutter since 1988...
1983 JA, 1984 JA, 1985 JB (all rego'd, all running :D )
