89 xjs v12 high idle?
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RealtorMPG (05-01-2014)
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That is as variable as "what is the best oil to use"..
In my years:
About 1200 rpm cold is what most are/have been. I usually knock that down to around 1000rpm when I do the AAV rebuild.
Around 700rpm hot in P or N is my settings and I find it quite satisfactory.
This hot idle will depend on waaaaaay too many items to nail 100%. Air con compressor (which one), smog junk, etc etc, all affect this number.
The tacho on the dash is NOT accurate, so estimate is alll that one can do. You get to know the engine speed after MANY years of listening to them. Its a feel thing for me.
In my years:
About 1200 rpm cold is what most are/have been. I usually knock that down to around 1000rpm when I do the AAV rebuild.
Around 700rpm hot in P or N is my settings and I find it quite satisfactory.
This hot idle will depend on waaaaaay too many items to nail 100%. Air con compressor (which one), smog junk, etc etc, all affect this number.
The tacho on the dash is NOT accurate, so estimate is alll that one can do. You get to know the engine speed after MANY years of listening to them. Its a feel thing for me.
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