Violent shake/clunking. Bogs down RPM's. broken/loose bolt?

[IwantMKIII]

Well i noticed yesterday during a hard gear change a grinding noise. It worried me at first then i just figured i left my foot on the clutch pedal too much and caused a violent chatter effect. (this happens with the RPS 3200lb 6 puck sprung).

Today i did another hard gear change which led my clutch pedal to stick to the floor. Shifting to get off the road was nearly impossible. The clutch pedal was preceded by voilent shaking and metal hitting metal bogging down RPMs.

At first i thought my clutch cylinder went out since its been leaking awhile. Then when i finally got off the road i pulled it back up and pressure was ok again.

Then i thought ANOTHER? broken clutch fork? Nope, shifts fine again since i pulled the pedal back up. Then it leads me to the DIFF. The Diff has had a lot of play in it since i got it, maybe its just gone. Nope. I noticed the clunking happened again, only this time i was sitting still in neutral. This leads me to something with the clutch or flywheel. When i was in neutral whatever it was, hit maybe twice unlike the last time where it was hitting a lot causing the whole car to shake. Im thinking maybe broken or loose bolts related to flywheel/clutch setup? Maybe not?

I'm not at home, i'm 2.5hrs away in fact from all my tools and parts. Any input would be appreciated.

 

[Mk3runner]

So only happens when you go to shift?

 

[IwantMKIII]

^it seems to mainly happening after shifting hard, like it pops somethign out of place. HOWEVER i noticed it happens even in neutral just idleing, very little but it happened i noticed.

 

[Mk3runner]

You positive your pp or trans isn't pissed off. I've seen bent pressure plates do that... But thinking on it more... I wanna blame your trans. Shift easy and get home.

 

[IwantMKIII]

You positive your pp or trans isn't pissed off. I've seen bent pressure plates do that... But thinking on it more... I wanna blame your trans. Shift easy and get home.

not sure how that could be, fill me in. Keep in mind this trans has most likely been rebuilt in its lifetime. Don't know when exactly.

Another thing, how would the trans cause the pedal to stick to the floor? It couldn't.

 

[Mk3runner]

Pedal to floor is clutch slave related. Has to be.. Air in lines or something. I'm not gung ho on trans internals yet. Put it's clearly related to shifting. The idle part kinda sways from that but it started with hard shifts yeah?

Top fluid off and bleed it. Maybe clutch won't disengage right. I'm not sure. Just tossing related ideas till something sticks.

 

[Mk3runner]

Maybe your slave is gone.. Just hard to tell maybe. Or maybe the fluid is old and clogged a little. Just shooting out ideas still

 

[IwantMKIII]

^fluid slightly leaks so i have to refill it every once in awhile so its not old. possible air but i've been using it like this almost a year with no problems like this.

I'm steering clear of the trans right now. I'm going to inspect the clutch tomorrow via bellhousing plates

 

[Mk3runner]

I'd start simple. Bleed slave and get fresh fluid in there. LOL maybe replace slave. Pop the inspection cover as said and see how it looks. Drive safe


Throw out bearing and pressure plate come to mind for some reason.. If slave is doing it's job go there next.next

Another idea, iirc there's two bolts and a plate related to the clutch fork.. Maybe look at that too

 

[IwantMKIII]

^save was replace at engine rebuild. However master does infact need a replacement. I have one but i left it at home which is 500miles away lol. DOH.

 

[Mk3runner]

Ouch why so far out?

 

[IwantMKIII]

im in charleston wv, my home is in Phila. PA

 

[Mk3runner]

Damn... Sounds eventful

 

[IwantMKIII]

Damn... Sounds eventful

gf is there

 

[rayall01]

If I was there, I'd teach you how to drive without a clutch. It can be done, you know.

 

[Quin]

Take the inspection plates off. Have a buddy spin the motor by hand while you check the clutch bolts. If they're all good, stick a big flat head under the flywheel through an inspection plate and try and wiggle the flywheel. If it doesn't move, then you're probably okay. I just had 4/6 of my flywheel bolts break... I could pry my flywheel up a good inch or two without using any real force... You'll know if it's broken. If not, have previously mentioned buddy hop in the car and push the clutch in. Watch the slave, make sure it's getting it's job done.

Btw, it doesn't matter if it's leaking or not... There could still be old fluid or a decent sized build up somewhere.

 

[Mk3runner]

Flywheel bolts would suck.. But like said that happens too.

 

[IwantMKIII]

If I was there, I'd teach you how to drive without a clutch. It can be done, you know.

i am well aware, i've done it before, GL ever getting it into first though.

Take the inspection plates off. Have a buddy spin the motor by hand while you check the clutch bolts. If they're all good, stick a big flat head under the flywheel through an inspection plate and try and wiggle the flywheel. If it doesn't move, then you're probably okay. I just had 4/6 of my flywheel bolts break... I could pry my flywheel up a good inch or two without using any real force... You'll know if it's broken. If not, have previously mentioned buddy hop in the car and push the clutch in. Watch the slave, make sure it's getting it's job done.

Btw, it doesn't matter if it's leaking or not... There could still be old fluid or a decent sized build up somewhere.

thanks for the tip, this is some good ideas. I just checked the PP bolts not that long ago however i didn't check for tightness/torque. Ill get back on here tomorrow night to type the results.

 

[enjoi.this]

With the clutch sticking on the floor deffanitly would be the slave, air in lines more then likely. Maybe there are broken fingers on the pressure plate? Could explain why you are having trouble getting into gear since clutch wouldnt dissengage. Just a thought.

 

[Mk3runner]

yea that's another thought.. But basics first