I wouldn't be too concerned about a short period of 3K no-load rpm. If it was brand new rings or something ..then yes, but on a well used engine that's fairly healthy, with decent oil in it, I wouldn't give it a thought. not quite the same engine.. and, the official way to adjust the max rpm, per Bentley, on a diesel vanagon engine is set the max throttle lever stop screw at 5,050 rpm ( or something close to that ) and take the reading and do the adjustment with no loadat that rpm.
On 10/10/2013 7:09 PM, John Meeks wrote: > Right Stuart... > > I've checked that nothing in that linkage is jammed or stuck. AND it > stopped happening after a cooldown.and restart but not after a momentary > shutdown. > > I have the Digifant Pro Training manual on my phone. That's logic. I like > Scotts' idle control unit idea . Pro Training has s page on that. > > 3000 RPM with no load for more than a few seconds IS pretty disconcerting. > > John > ' > > > On Thu, Oct 10, 2013 at 9:35 PM, Stuart MacMillan <stuartmacm@gmail.com>wrote: > >> Definitely follow logical troubleshooting procedure, which means check the >> simple stuff first. That's always the mechanical things you can see and >> feel. Electrons are only detected by magic. >> >> I've had this happen and it was something that dropped on the throttle >> lever >> and jammed it. Broken cruise control cable I think. The good thing is the >> ECU will cut off the injectors before the engine self-destructs! >> >> At least that's what happened in my case, but at the time I thought I >> destroyed it. >> >> Stuart >> |
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