W/F 5M33 trans, lubricates on idle?

There was somewhere here that I read that the W5M33 trans doesn't lubricate the internals when on idle. Is that correct? If so, is this the same on the F5M33 trans that it doesn't lubricate on idle?

What I mean with idle is when the car stands still/doesn't move! /ubbthreads/images/graemlins/smile.gif

How long can the car stand on idle before it becomes a risk for the trans? I know that this is a question that isn't easy to answer, but has anyone actually seen a trans (bearings etc) that has gone bad because the car was on idle to long?

 

[stevep]

I thought they splashed lubricated. That would happen anytime the engine was running and the clutch was out.

 

[Barnes]

I would think that idling the transmission would be fine without moving. Yes there is splash lubrication. The lubrication supplied to the plastic oil guides comes from the front differential. As you move forward it acts as a pump and moves fluid to the top of the case and into those guides.

 

[curtis]

All of the gear boxes have splash lubricating guides and sitting long periods of time idling isn't good for any of them. This is the main reason I don't or will never have a turbo timer on my car. I was on the phone with shep's shop or TRE and conversation went into turbo timers and the guy I was talking to said he see's alot of bad bearings and contribute them to timers

 

[Terry Posten]

I don't use timers either. I have several blocks that I basicly coast into my garage. And if I take it to work, I have about a mile of company drive that is 20mph.

 

[Barnes]

Quoting curtis:
All of the gear boxes have splash lubricating guides and sitting long periods of time idling isn't good for any of them. This is the main reason I don't or will never have a turbo timer on my car. I was on the phone with shep's shop or TRE and conversation went into turbo timers and the guy I was talking to said he see's alot of bad bearings and contribute them to timers



I'm surprised by this. It seems to me the engineers at Mitsubishi would account for the fact that people might let their cars idle for inordinate amounts of time.

How did this guy link the bearing wear to idling?

 

I can't even think of a manual transmission that has full pressure lube. The only thing spinning while your sitting still is the input shaft....

 

[jepherz]

Quoting BarnesMobile:
Quoting curtis:
All of the gear boxes have splash lubricating guides and sitting long periods of time idling isn't good for any of them. This is the main reason I don't or will never have a turbo timer on my car. I was on the phone with shep's shop or TRE and conversation went into turbo timers and the guy I was talking to said he see's alot of bad bearings and contribute them to timers



I'm surprised by this. It seems to me the engineers at Mitsubishi would account for the fact that people might let their cars idle for inordinate amounts of time.

How did this guy link the bearing wear to idling?



I'm not sure you can say the engineers didn't think of it. When the car is in neutral with the engine on, the input shaft is spinning. Unfortunately this is the highest shaft in the transmission (as far as I can remember) and there's just no way to splash oil up there if that is the only spinning shaft.

Doesn't this discussion disclose that it is not bad for the transmission if you tow a vr4 with all 4 wheels on the ground, though? I know this topic has been brought up in the past.

 

[Barnes]

Even though the input shaft is the only *shaft* spinning, there are other components spinning. Namely 1st and second gear on the intermediate shaft. Perhaps this doesn't provide enough lubrication for the rear bearing on the input shaft, but it is enough for the front bearing?