Okay, so i just put a rebuilt engine, has about 50 miles. When the transmission was out the clutch looked like it was just put in, i know before the engine i wasn't having any issues. First started driving the car after the engine and it seemed that i couldn't get all the air out so i replaced the master cylinder and slave cylinder.

Now to the issue... I have bleed the clutch for hours on end and it still is acting up... Okay so i am having to pump in between shifts like i am trying to double clutch or something with a pump to move to neutral and another pump to move it into gear, during this process i still grind going into gear. Earlier i was in a parking lot and had the clutch depressed and it in gear as i was waiting for a car to move so i could and then all of sudden it started grinding like i never had it in gear and was trying to force it into gear...

I need some suggestions cause i really can't think right now!

Thanks ahead of time

 

Anyone? Really trying to actually be able to drive this car without worrying its gonna leave me

 

Okay, so i have been reading people complain about their synchros and what not. Any one think that is it?

I wonder, only thing that gets me is this never happened before with the old engine

 

It's not the synchros, although continuing to drive it like this will excessively wear your synchros. The clutch is not fully disengaging. That is why you are getting grinding. You have to find out if the clutch master cylinder/slave cylinder are properly bled yet, or if the fork is misaligned, or something else. Bleeding the clutch typically requires a special procedure and an extra person, or a vacuum bleeder setup. It's a PITA for sure...

 

If the clutch is not fully disengaging, the trick is to snick the shifter into neutral when there is no load on the engine. That is, the point where you're not accelerating or decelerating. Then when the rpms are right, it will snick into the next gear. It takes some practice to develop this technique, and really the G isn't the best car to do this on as it will surely cause some level of damage to the trans in the process.

 

Well definitely good to know it isn't the snychros thats for certain. My dad was actually telling me he thought clutch wasn't fully disengaging so thats def it.

Im going to try and bleed it some more and see if that helps and check everything else while im down there

Thanka for the replies

 

Alright so a heads up, all lines were good and it was re bleed also. Right now the tranny is out and clutch throwout bearing and all the other goodies seem fine no damage at all

Reason for taking it out is i was still having the issues

 

Is there play in the transmission input shaft? Damper springs on the clutch still look ok? Fingers on the pressure plate look ok?

 

There doesn't appear to be any play in the shaft and the fingers and springs seem near new

 

But who knows i could be off

 

Failing slave cylinder?

 

I just replaced it when all this started and it is working properly too

 

If you can't get all the air out, then either there's a leak, or there's still air present.

If it's not the slave then it could be the master.

Did you try one of those vacuum devices to suck the fluid rather than pumping it?

On a previous motorcycle, after about 20K miles, I started having weird clutch issues (hydraulic clutch). The engagement point would vary. Most times after riding for a while it would grab with the lever most of the way out (vs ~half way out when normal). I thought it was related to temperature. However, as mileage increased, it would on occasion do this when the bike was completely cold. Eventually, I ended up getting rid of the bike. However, several forum members experienced a similar issue, which turned out to be an internal leak in the slave. Fluid was being pumped, but wasn't actually pushing on the part in the slave to release the clutch. End result was that of having a partially disengaged clutch, ie gear grinding.

 

Actually that is how i did bleed it. By sucking the fluid out. I have changed both the master and the slave cylinders out with no change what so ever bleeding it for hours.

When under the car and watching the slave cylinder it is fully operation. It does the same if i pump once are 5 times so i don't really think that it is a fluid issue.

When I first bought the car the 2nd day i changed the fluid thinking it prob hadn't ever been done. Then i used the normal old school way and didn't have a issue at all. Pressure built back up, and shifted smoothly up until i blew the engine

 

Is it possible something is nothing being aligned when the slave is bolted to the flywheel/engine?