Fuel Addicted???

[JGrefenstette]

i have an interesting question to ask yall. especially those of you who are extreamly knowledgable about the VE's. i no that motors can get ether addicted, but is it possible for a diesel to get "fuel addicted"??? i have heard that if you crank up the IP then try to turn it back down after running it with lots of fuel, the motor will run poorly.



i have recently become 'lazy' and started using 1st gear a lot more often. and now it seems that when i try to start in 2nd im really chuggin the motor. it almost stalls, drops down near 500rpms with not throttle if im just letting the clutch out. what is going on? did the motor get used to giving a certain fuel rate with a lower gear, and now going back to a higher gear its not wanting to give enough fuel?



also, could loose transmission mounts or bad motor mounts be stealing power/torque from the wheels?



thanks, let me no all your thoughts and ideas please. im very curious to see what yall have to say about this.

 

[skobylenski]

Um, well here's my idea. I have basically the same truck as your's (see sig. ), and I recently turned up my pump while at the same time turning down the low idle (I'd always thought it was idling too fast anyway, so I slowed it down to about 700rpm). I know that if I try to take off in second gear now, it's much more sluggish than it used to be. I think this simply has to do with the fact that the engine is turning slower, thus when load is applied, it slows down more and at a faster rate. I'm sure in your case this is also amplified due to the taller tires you're running.

More likely its a combination of you getting used to the better acceleration from more fuel and the point I stated above than anything that is lose/broken. Hope this helps you somewhat.

 

[JGrefenstette]

ok. thanks, im pretty certain the larger tires bog it down some what. im idling at 850rpms. after a good hot run it may be about 880rpms, and when its cold in the morning it will run about 700rpms. it does feel like 850 is a high idle. im used to big tractors that idle real low, you can tell cause the slow clack clack clack opposed to these little cummins fast clatter.

 

[JGrefenstette]

anybody got any technical insites about the VE??

 

[skobylenski]

Yep, click here and start reading... ...

 

[PToombs]

Scott, that'll keep him busy for a while! :-laf

 

[skobylenski]

That's how I learned, just read, read, read, mess up the truck, read some more, etc. , etc. , etc... .

 

[PToombs]

:-laf:-laf