BJ74 low idle (1 Viewer)

[SeanBJ74]

My BJ74 auto is idling a bit lower then usual should I be worried ? Car usually idles at 800rpms it is around 500-600rpms now

 

[Hulsty]

What is the specification ?

 

[SeanBJ74]

What is the specification ?

1986 BJ74, auto, 13bt engine

 

[roscoFJ73]

Have you touched the hand throttle on the dash? 800 rpms with aircon on or off?

 

[SeanBJ74]

Have you touched the hand throttle on the dash? 800 rpms with aircon on or off?

Nope and ac off

 

[jblueridge]

On mine, the idle set screw has never been adjusted and the hand throttle alone maintains idle speed.
Now and again I have to reset the hand throttle if it backs itself off.

 

[SeanBJ74]

On mine, the idle set screw has never been adjusted and the hand throttle alone maintains idle speed.
Now and again I have to reset the hand throttle if it backs itself off.

After the car runs for a while it goes back up to 800rpm idle. I’ll have to check that screw out where is it located ?

 

[MyCruiserisaHogBeast]

When mine is warm it blarps along at about 650rpm idle. It runs rough when it's cold so I also just use the cable until it's fully warmed up and is ready to not act like a dick at low idle.

 

[FJBen]

When I had everything rebuilt, IP/injectors they set the idle to 650. That said every first cold start requires bumping the throttle cable a bit until it's a little warm. Once warm it idles at 650 normal. Everyone who has a 13BT seems to say the same thing, they all require messing with that throttle cable a little and that the idle screw on the pump doesn't even reach on most of them.

 

[cruiserdan]

My idle comes up as the engine warms up. I wind the hand throttle out a bit for the cold-start and back it off when the engine warms up.