vibration after clutch install

[revelationz]

ok im sure everyone has seen some sort of topic like this but im in a hurry and dont have much time to look through all the posts to see if anyone has posted a similar problem but i put a new clutch in my 84 and since then it vibrates like hell around 2000 rpm and on. it would vibrate so bad that the serpintine belt would fly off (it only runs the altenator) and ive bought 3 belts already. i was hoping it might be the cable i got cause at the same time my adjustable cable broke and due to shortage of funds i replaced it with a stock cable. thhe pedal feels a little funny almost as if it doesnt disengage the clutch all the way and since ive got everything out of it right now i thought id go ahead and get some opinions of what the problem could be before i put it all back together.

 

[revelationz]

i agree with your opinion all the way i just need to find a way to adjust the clutch. i did resurface the flywheel. i put in an oem clutch from oriely auto parts for now cause im basically broke. i am running the aftermarket quadrant but i havent found a place around here where i can get the firewall adjuster know of anybody on here that ships over night? is there anyway i can like adjust the clutch without a firewall adjuster? thanks for the help.

 

[ECU5.0]

well the stock cable is better in my opinion than any adjustable cable. but if you are running an aftermarket quadrant than you need a firewall adjuster to make your adjustments so the clutch engages/disengages all the way. did you resurface or replace the flywheel when you did the swap? also, what kind of clutch did you put in it. my opinion is that the clutch isnt engaging all the way and is rubbing on the flywheel in certain spots causing it to grab and jerk the car a little bit. just my opinion

 

[ECU5.0]

there isnt a way to adjust the clutch without a firewall adjuster. do a search for v8only and look at some of his threads. i think upr will overnight ship stuff. ive got their firewall adjuster and its awesome.

 

[HISSIN50]

Rev, in addition, i might check your damper - you might have two different issues goin on.

good luck.

 

[ECU5.0]

Rev, in addition, i might check your damper - you might have two different issues goin on.

good luck.

aahhh...good point man. didnt really think of anything besides the clutch situation.

 

[revelationz]

i had the damper replaced after i noticed the vibration, that was my first guess but it didnt help at all. i just ordered a firewall adjuster from upr it said it'd take 3 working days for it to ship so hopefully it will be here by thursday at the latest i really need it for a car show on saturday. im almost positive it is the adjustment with the clutch it vibrates in any gear weather its moving or not if that helps any i took the tranny out and i didnt feel any vibration put the tranny in without the driveshaft and then it vibrated. it was really really tight at the clutch fork and looked almost as if the clutch fork and throwout bearing was pressing entirely too tight on the pressure plate but then again that could just be me tripping i thought there was supposed to be a little play in the clutch fork i noticed there was when i looked at the adjustable cable before it started going bad. im also looking for a really cheap electric fan since my hlaf old ones fins broke off anybody know where i could get a fairly cheap fan? possibly from a junk yard thats interchangeable with some modifications for some bractes? it has an aluminum afco radiator guessing 24"x 36", tried to fix the old one with jb weld but the balance on it was knocked off so bad that it vibrated really bad. again thanks for the help!

 

[jpctln]

Could it be a busted tranny mount?

 

[HISSIN50]

you are not driving with a broken (read unbalanced) mechanical fan, are you?

 

[revelationz]

no im not driving this car at all ever since the vibration started, and i havent drove it with the fan broken like it is. those fan blades shoot off like rockets when you take it apart and forget to put the clip back in to hold it in place . tranny mount seems to be fine to me its only about a year old and the car hasnt been drivin much id say over the past 6 months probably has 100 miles if that. i started to put it all back together should anything be lined up? i used the clutch alignment tool and all but i dont know if the pressure plate has to be lined up with the flywheel in a certain spot or anything. although i dont think that would matter since i had the flywheel resurfaced. but like i said im pretty sure its the adjustment on the clutch i'll let everyone know how it goes when the firewall adjuster comes in whenever that will be (first time ordering anything off the internet)

 

[HISSIN50]

what i was getting at is: you start it at some point to notice the vibrations. was the broken (and unbalanced) fan connected when you noticed the vibes?
sorry to beat this to death - just trying to see if it could be something other than driveline related - to save you some work.

you are sure the flywheel has the correct imbalance? machine shop, etc did not get it mixed up or trade it in on an already machined flywheel (that could be the wrong imbalance), etc.......

just tryin to toss out ideas. i just re-read this. i would make sure the flywheel is correct. you could get a quote to have the flywheel checked for balance, etc. might be worth the money (sounds like you have it all ripped out again).
as for the PP, if you got it to bolt up and the trans went back in, you should be alright.

good luck.

 

[revelationz]

oh ok i see what your saying but no the fan just broke a couple weeks ago way after the vibration i havent even connected it back into the car since i broke i just hooked it up to a battery while it was out of the car and held it down to a flat surface as best as i could but it would just vibrate like crazy i just thought id throw it out since i was on the topic of vibration and hopefully found a cheap one i could get but as for the machining on the flywheel my brother did all that where he works and he swears up and down that it came out good so im just going by his word on that one. if it helps out any i took the tranny out and started it and it quit vibrating at least it felt and sounded like it quit but as soon as i put the tranny back in it starts vibrating again im almost positive its the adjustment though after thinking about it cause the throwout bearing is resting on the pressure plate pretty tight and so im hoping if i get a little more play on the cable then that will solve everything hopefully but thatnks for the help again!

 

[HISSIN50]

oh ok i see what your saying but no the fan just broke a couple weeks ago way after the vibration

ok cool. i see what you mean now. rule that out. ditto for the flywheel - if you ran the motor with the trans removed (but flywheel attached).

im running out of ideas. unless it is an internal trans issue, im not sure. i dont know that a bad pilot bearing can cause vibes. hmmmm. bump for you. good luck!

 

[85GT302]

I once had a brand new pressure plate that was totally out of balance and would vibrate the car violently. I'm not talking clutch chatter here. It felt like the snout on the crank broke off. I had to tear it all apart and put another one in and the vibration was gone.

 

[revelationz]

ok i got the firewall adjuster finally but the instructions are all messed up and explained with a quadrant but i already had an aftermarket quadrant and im having a hard time install the firewall adjuster anybodt have some instructions or something?

 

[revelationz]

ok installed the firewall adjuster a couple days ago and it still vibrates but not as bad. if i didnt take it past 2500 rpm (when the vibration starts now) would it hurt if i ran the car with the vibrations for about 2 weeks just back and forth to work so i can get a new flywheel and stronger clutch kit? also while im at it the oil pressure gauge is kinda messed up and it didnt start messing up until i did the clutch install it will go to 35 lbs and then i'll rev it up and then it will go to about 45 lbs and then down to 5 and few times it hit 0. maybe its just the gauge its self hopefully but i doubt it anybody have some opinions on that? thanks much help appreciated... this is my old mans car but he passed away in december and i slammed into a semi the same day he passed away bringing it home from his work (it literally crumpled the rr rim up and tore the rr quarter up) it coulda been ALOT worse but thankfully he put in a roll cage but anyways he had me down to inherit it and im just now getting motivated enough to want to fix it all up.