83 FJ60 Normal Idle Speed

[John Staton]

can someone tell me a good RPM at idle? When I got my FJ it ran pretty rough. I have had a few things done to it, including getting the AC going again and my mechanic had adjusted the idle speed and it seems high to me. Idles at 1500 RPM.

 

[micruz60]

It should idle at 650-700rpm.

Check the Idle Control Solenoid?

Verify correct timing.

 

[CaptClose]

Spec is 650... but I think a 2F is best around 800-850

 

[John Staton]

thanks that is helpful. Getting tie rods and replaced and radiator refurbished (small leak) now and they will get the idle speed down for me at the same time. Gees...I am never going to get to my H55 at this rate. Hopefully Q1 of next year.

 

[JHE4601]

I had mine up to 1200 for my DEQ test. Stock is 650 on the FJ60. If you look inside your engine bay on the fender the listings are there for that model.

 

[Spike Strip]

With A/C on it will idle above 1000 when the compressor cycles on. Idle without AC around 650-700.

 

[Seth S]

Mine idles at 1000 rpm once it is warmed up. I have not spent any time with the idle settings a I still need to replace all the vacuum lines, check the timing, and check the valve clearances.

 

[TexasBlue]

Set my idle after Jim C rebuild to @700. With the AC idle up it goes to 875-900 to move more air across that engine.

 

[scottcb]

Came across this thread while researching and hoping someone can shed some light on my issue. At start, my idle is smooth around 700RPM. As soon as the engine warms up, the idle rises to about 1100-1200 RPMs and remains constant. My question is what to adjust? Seems to me something is triggering the idle to increase after the engine reaches normal operating temp, but I'm not sure where to start.

 

[John Staton]

Since original post, I got my desogged, weber carb, headers and my idle is generally around 650-700. Occasionally it will be around 1200 and I gas it and it settles back down. My generally drops a bit when I have the AC on, but I am happy with the end result since the work. I used to have rough idle, even die around corners but now it runs like a top. Has me reconsidering the H55 and just having my 4 speed rebuilt and putting the $$ into other areas (new carpet for example).

 

[emanting]

Came across this thread while researching and hoping someone can shed some light on my issue. At start, my idle is smooth around 700RPM. As soon as the engine warms up, the idle rises to about 1100-1200 RPMs and remains constant. My question is what to adjust? Seems to me something is triggering the idle to increase after the engine reaches normal operating temp, but I'm not sure where to start.

did you ever get your idle issue solved? My 60 does the same thing.

 

[OSS]

It's not an "issue". That's how a carbureted engine works — really inefficient when cold (with slow idle) then better when warmed up with hot oil circulating. It's normal for the 2F and the choke knob is there to manually tweak the idle if necessary

 

[emanting]

It's not an "issue". That's how a carbureted engine works — really inefficient when cold (with slow idle) then better when warmed up with hot oil circulating. It's normal for the 2F and the choke knob is there to manually tweak the idle if necessary

What's funny is that it just started acting this way...prior it was idling fine around 700 without having to fiddle with choke

 

[2mbb]

It could be that you have a vacuum leak that "opens" once the engine heats up. you can use spray carburetor cleaner, and spray around intake manifold gaskets, etc. to check for leaks.