A couple of stupid questions.

[ravengp]

Ok so I was working with my son the other day and he asked a couple questions about driving the Jeep. Unfortunately, I looked like an @ss blinking into space because I suddenly realized I had no good answer for him. It was the way I had been taught and I really don't know the why's of it.

1. If you are in too high of a gear (5 speed) and the engine starts to bog why is this bad? What can happen to the engine if you run it in the wrong gear like that?

2. (I am in a cast so I can't use the clutch very well) Is it really bad to shift without using the clutch? What will happen to the transmission? (I usually don't grind the gears much. I usually am able to hit it without grinding).

[91YEEPER]

shifting without a clutch can be bad. even with it shifting smoothly and not grinding it causes side loads and thrust issues on the synchro's, bearings, and shafts. depending on year of jeep the AX15's are notorious for killing synchro's with using the clutch let alone without.

bogging down an engine really bad can cause plugs to foul, schitty mileage, and leave tons of deposits all over the internals of the motor.

[airforce26yrs]

shifting without a clutch can be bad. even with it shifting smoothly and not grinding it causes side loads and thrust issues on the synchro's, bearings, and shafts. depending on year of jeep the AX15's are notorious for killing synchro's with using the clutch let alone without.

bogging down an engine really bad can cause plugs to foul, schitty mileage, and leave tons of deposits all over the internals of the motor.

Good answeres, but I have heard that 18 wheelers do not use the clutch to shift so I don't know. Second answere is right on.

[gearhead1985]

there is a range of rpms that the trans is synced perfectly and no clutch is needed that is how i drag race my gto i never use the clutch i set the shift light for the sweet spot and just rip it into gear

[LeafspringMARINE]

18 wheelers use a double clutch... unless something has changed.

[airforce26yrs]

Seems like both styles are activly used.

http://www.answerbag.com/q_view/15349

[rsq41]

I have no clue of the mechanics of it, but I've been told if one can shift a vehicle with a single movement of the clutch, do that, cuz if you're not good enough you will wreck the syncros.

If the syncros are already shot, then you will need to shift without clutch or double clutch, cuz the boss is not spending any money on syncros! If you can't double clutch or shift without it, then you'll have to get a newbie on your crew who can and tell him/her it is time for driver's training when you have to drive the reserve rig... (Well, that is what they did to me when I was the newbie...)

[91YEEPER]

Good answeres, but I have heard that 18 wheelers do not use the clutch to shift so I don't know. Second answere is right on.

thats a completely different animal as they utilize clutch brakes, straight cut gears, and design from engineers that allow this.

[91YEEPER]

there is a range of rpms that the trans is synced perfectly and no clutch is needed that is how i drag race my gto i never use the clutch i set the shift light for the sweet spot and just rip it into gear

this is the worst schit i have ever heard of for the T56. ive ran the tremac in a few different vehicles and have only heard of issues and destruction for that specific trans with a life like this.

[ravengp]

Ok, so...shifting without a clutch with an AX15: Bad idea cause it will damage the syncros.

Bogging down the engine in too high a gear makes for schitty mileage, fouled plugs, and all sorts of junk gunking up the engine.

Soooooo....I should stick to driving the (gags) minivan until I get this frakkin cast off, and when I do drive the Heep keep it in the right gear.

Have I got a handle on it now?