Clutch not disengaging

[jafero]

Chassis: 89 S13
Engine: KA24DE

I'm wrapping up putting in a new engine. Car is sitting on top of jack stands. While bleeding the coolant system I noticed that speedometer was at 10 mph. So I looked at the rear wheel and it was spinning. All these are happening when the gear is in neutral and if I gently push the shifter, speedo needle goes up. Also I can engage any gears without pressing clutch.

New clutch, new throwout bearing.

What could be wrong here?
Is there a chance that clutch remains engaged in neutral gear?

[TheTimanator]

I'm trying to decipher what exactly your saying. I assume when you say you can "engage any gears without pressing clutch" you mean with the engine running.

Assuming you installed the clutch correctly try adjusting your clutch pedal. When I first got my car running I had the opposite problem. The clutch would not fully engage b/c the pedal needed adjustment.

[g6civcx]

Originally Posted by jafero

Is there a chance that clutch remains engaged in neutral gear?

No, unless the gearbox is not in neutral at all, which means either your shifter is not installed correctly or the gearbox itself needs serious work.

Apply the parking brake.

[jafero]

[QUOTE=TheTimanator]I'm trying to decipher what exactly your saying. I assume when you say you can "engage any gears without pressing clutch" you mean with the engine running. [QUOTE]

Correct. Even when engine is running, I can engage any gears without pressing clutch pedal.

[g6civcx]

Originally Posted by jafero

Even when engine is running, I can engage any gears without pressing clutch pedal.

This is normal. You can shift clutchlessly on helical gearsets, but you shouldn't do it too often or you'll risk damaging the synchronisers when not done right.

In a pinch, such as damage in the clutch mechanisms, you can still shift clutchlessly if you time your shifts correctly, but that's a different topic.


Are the rear wheels off the ground?

[!Zar!]

Check and adjust your slave cylinder. It sounds like your car isn't fully engaging.

[jafero]

Originally Posted by g6civcx

This is normal. You can shift clutchlessly on helical gearsets, but you shouldn't do it too often or you'll risk damaging the synchronisers when not done right.
In a pinch, such as damage in the clutch mechanisms, you can still shift clutchlessly if you time your shifts correctly, but that's a different topic.
Are the rear wheels off the ground?

You meant using "RPM matching" instead of pressing clutch pedal to change gear. Thanks a lot. Now I have better understanding.

All four wheels are off the ground and drive shaft and rear wheels are spinning in neutral? Now I am confused about the mechanism of tranny in neutral gear. I thought drive shaft or rear wheel should not spin in neutral gear.


Zar// I am going to bleed the slave again. When I was bleeding it yesterday, I kept getting so much air bubble (more air coming out of the bleeder hole than brake fluid) that I used entire bottle of brake fluid and still air was coming out. Don't know if this has something to do with rear wheel spinning in neutral.

[jafero]

I bled slave cylinder today and found these.

1.Pressing clutch pedal doesn't stop driveshaft and rear wheel from spinning whether the gear is in neutral, reverse or any other gears. Nor the rear wheel can't be stopped by hand.

2. I and my friend try to disengage the clutch by pushing the fork with our hands. Fork moved all the way to rear, a lot more than what slave cylinder pushed but the driveshaft and rear wheel still spins.

3. Here is a pic of my slave cylinder in action. Do you think the slave cylinder is pushing out enough?

[DJ_Sunrise]

i dunno if its out enough but it shouldnt matter.. nothing should be spinning lol... not while its in neutral.. iiinnnteresting. any technicians in here??? ill ask around toyota..

-Bart