Vibration

Desperado · 01-08-2001, 09:45 AM

I need help with a vibration in my shifter. From about 3000 rpm to 5500 i have a real bad vibration in my shifter. I have replaced the harmonic balancer, drive shaft and just sent my transmission to tremec and they say everything is fine. Checked the transmission brace to make sure it is not touching the transmission and replaced the motor mounts and trans mount. Help please i have run out of options. It is strictly rpm related not speed. As long as it is under 3000 it runs smooth even at 80mph. please help

[This message has been edited by Desperado (edited 01-08-2001).]

LX XLR8R · 01-08-2001, 01:10 PM

well did you get a aluminum driveshaft???it also could be(just a possibility) is your flywheel or clutch out of balance.

------------------
1987 black notch(ex 4 banger)
DSS 306 w/ main support...Elderbrock 6028 heads..gt-40 intake..24# injectors...70 mm tb..77 pro-m...accel 300+..mac full legnth..tremec w/ pro5oh...full MAC exhaust,off road h-pipe,long tubes, catback...ron davis radiator..subframes, control arms...CFDF II..o yea holley FPR sucks..dont buy one..

Desperado · 01-08-2001, 04:58 PM

yes i have an fms drive shaft. It is a new flywheel and clutch. Could they still be out of balance? if so how do i correct this problem. buy new ones or can you balance the whole thing. I have never had this happen before and i have put together several mustangs. Is there a way to tell without taking the tranny out.(tranny removal stinks)

[This message has been edited by Desperado (edited 01-08-2001).]

capri302 · 01-08-2001, 07:44 PM

I have the same vibration on my 5.0.
Can you make the vibration on neutral?????
My engine mounts bolts on block are not tightened correctly and i don't know how this happen...
hope this could help.

------------------
84 Capri RS,Stock long block, Melling Cam 512,512 lift-230,230dur @.50, Performer RPM intake, Flowtech long tubes headers, Stock carburetor, 84 T-5, SVO Aluminum Driveshaft, 8.8 with FRP 3.73, Drag radial’s T/A 255 50R16. BEST ET : 13.45 @ 102 MPH Best 60FT 1.89 www.capri302.8m.com

Desperado · 01-14-2001, 10:30 AM

yes i can make it in neautral. it is not as bad but is still there. I am puzzled.Any more ideas welcomed

[This message has been edited by Desperado (edited 01-14-2001).]

Darkside · 01-14-2001, 10:57 PM

You probably wont like what I have to say but here it is. Put the trans in first clutck in bring up to 3000 if vib is still their you have eliminated trans and drive shaft as they are not turning. Remove Drive belts to eliminate fan water pum and accessories, if still there you need to remove trans. Remove clutch bolt bellhousing back on install starter start if vib gone it Clutch (which I would expect it to be. If not it flywheel or internal engine balance problem. Good Luck

Army

------------------
89 Notchback 347 Trick flow heads and intake bbk full length headers 3.73 Pro Charger with 3 row intercooler and much much more never enough got to go faster!!!

01-08-2001, 09:45 AM	#1
Desperado Registered Member Join Date: Mar 1999 Location: dallas, tx United states Posts: 20	Vibration I need help with a vibration in my shifter. From about 3000 rpm to 5500 i have a real bad vibration in my shifter. I have replaced the harmonic balancer, drive shaft and just sent my transmission to tremec and they say everything is fine. Checked the transmission brace to make sure it is not touching the transmission and replaced the motor mounts and trans mount. Help please i have run out of options. It is strictly rpm related not speed. As long as it is under 3000 it runs smooth even at 80mph. please help [This message has been edited by Desperado (edited 01-08-2001).]

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01-08-2001, 01:10 PM	#2
LX XLR8R Dirk Diggler Join Date: Feb 1999 Location: SLOATSBURG, NY Posts: 1,931	well did you get a aluminum driveshaft???it also could be(just a possibility) is your flywheel or clutch out of balance. ------------------ 1987 black notch(ex 4 banger) DSS 306 w/ main support...Elderbrock 6028 heads..gt-40 intake..24# injectors...70 mm tb..77 pro-m...accel 300+..mac full legnth..tremec w/ pro5oh...full MAC exhaust,off road h-pipe,long tubes, catback...ron davis radiator..subframes, control arms...CFDF II..o yea holley FPR sucks..dont buy one..

01-08-2001, 04:58 PM	#3
Desperado Registered Member Join Date: Mar 1999 Location: dallas, tx United states Posts: 20	yes i have an fms drive shaft. It is a new flywheel and clutch. Could they still be out of balance? if so how do i correct this problem. buy new ones or can you balance the whole thing. I have never had this happen before and i have put together several mustangs. Is there a way to tell without taking the tranny out.(tranny removal stinks) [This message has been edited by Desperado (edited 01-08-2001).]

01-08-2001, 07:44 PM	#4
capri302 Registered Member Join Date: Jan 2000 Location: ste-foy Posts: 21	I have the same vibration on my 5.0. Can you make the vibration on neutral????? My engine mounts bolts on block are not tightened correctly and i don't know how this happen... hope this could help. ------------------ 84 Capri RS,Stock long block, Melling Cam 512,512 lift-230,230dur @.50, Performer RPM intake, Flowtech long tubes headers, Stock carburetor, 84 T-5, SVO Aluminum Driveshaft, 8.8 with FRP 3.73, Drag radial’s T/A 255 50R16. BEST ET : 13.45 @ 102 MPH Best 60FT 1.89 www.capri302.8m.com

01-14-2001, 10:30 AM	#5
Desperado Registered Member Join Date: Mar 1999 Location: dallas, tx United states Posts: 20	yes i can make it in neautral. it is not as bad but is still there. I am puzzled.Any more ideas welcomed [This message has been edited by Desperado (edited 01-14-2001).]

01-14-2001, 10:57 PM	#6
Darkside Registered Member Join Date: Sep 2000 Location: East Alton Ill. USA!!! Posts: 26	You probably wont like what I have to say but here it is. Put the trans in first clutck in bring up to 3000 if vib is still their you have eliminated trans and drive shaft as they are not turning. Remove Drive belts to eliminate fan water pum and accessories, if still there you need to remove trans. Remove clutch bolt bellhousing back on install starter start if vib gone it Clutch (which I would expect it to be. If not it flywheel or internal engine balance problem. Good Luck Army ------------------ 89 Notchback 347 Trick flow heads and intake bbk full length headers 3.73 Pro Charger with 3 row intercooler and much much more never enough got to go faster!!!