Noisy T5

propav8r · 05-07-2012, 02:01 AM

Is it normal for a T5 to be noticeably noisy in the cabin of the car? I've never really driven another one for any distance so I don't have a baseline to compare to. Keep in mind this is an early car ('79) with little sound deadening around the trans tunnel.

When I let off the gas, I can hear the trans very noticeably in the cabin. Like there's a LOT of gear lash/gear rattle. Also very noticeable beside highway concrete barriers. When I'm on the throttle, putting a load through the trans, it quiets down, and it doesn't make noticeable noise in neutral. Just kinda wondering about other people's experiences. I'll make a recording tomorrow to demonstrate what I'm talking about.

I've always heard it's a "noisy" transmission, but I didn't expect this.

If it's normal, some dynamat is in order.

Turborg · 05-07-2012, 02:26 AM

Almost all who have installed a t-5 have decell noise. Nothing that i have found can change it. I just turn the radio up louder. Vibration is not normal, but gear noise is. Mustang forums discuss the same problem.

blkaplan · 05-07-2012, 09:56 AM

Do you have a shifter boot on? When I first test drove my car with the tko transmission and no shifter boot I thought for sure my transmission was gonna blow.

I then installed a shifter boot and it got much quieter. Still audible but not straight cut gear box loud....

Most people say they are noisy, if you want to quiet everything down I would get a thick shifter boot and then put some sound deadening around the transmission tunel. That should help alot.

towerymt · 05-07-2012, 10:39 AM

They are loud. What you describe sounds normal. Mine's pretty nice and it's still loud. Rob's old box was like gravel.

blkaplan · 05-07-2012, 10:47 AM

The 02 V6 Mustang t5 box I pulled from the JY had a damper bolted to the rear tail shaft housing. You might try something like that. It also had a large damper built into the slip yoke.

towerymt · 05-07-2012, 10:50 AM

Mine had that chunk bolted to it too. Or maybe it was the one in the wagon, I have that piece though.

The giant damped slip yoke won't come close to fitting in a 240. Tried it.

blkaplan · 05-07-2012, 10:53 AM

Quote:

Originally Posted by towerymt

Mine had that chunk bolted to it too. Or maybe it was the one in the wagon, I have that piece though.

The giant damped slip yoke won't come close to fitting in a 240. Tried it.

hmmm that's too bad. I wonder if we turned it down to fit if it would have enough meat left to be effective.

Do you remember how much interference there was?

towerymt · 05-07-2012, 11:15 AM

not even close. I tried it when I had the driveshaft off, cause I was going to plug up the trans and drop it off the jackstands. if you knock the outer ring off with the rubber between, maybe, but of course what's the point.

there's a note on the yoshifab site that the 4cyl mustang driveshaft can be used with the driveshaft adapter if the "weight" is removed from the driveshaft. bet it's similar.

MXSlotkin · 05-07-2012, 11:51 AM

My t5 makes a lot of noise when the car is sitting still in neutral and I let off the clutch. Is this cause the throwout bearing is just sitting there, under no load so it vibrates some?

Magnum TE · 05-07-2012, 11:57 AM

The T5 in my Gold car has some PTSD, it's rebuild and shifts like butter, but it's a little traumatized from a previous rebuild. Mine's so loud I think I should use ear plugs for long trips. Loud gear lash on decel, loud TO bearing when in N, loud when cruising on the freeway.

blkaplan · 05-07-2012, 12:17 PM

Quote:

Originally Posted by MXSlotkin

My t5 makes a lot of noise when the car is sitting still in neutral and I let off the clutch. Is this cause the throwout bearing is just sitting there, under no load so it vibrates some?

Quote:

Originally Posted by Magnum TE

The T5 in my Gold car has some PTSD, it's rebuild and shifts like butter, but it's a little traumatized from a previous rebuild. Mine's so loud I think I should use ear plugs for long trips. Loud gear lash on decel, loud TO bearing when in N, loud when cruising on the freeway.

Install a return spring on the clutch fork. So theres a 1/4" gap at idle. I had the same problem until I did that.

JohnMc · 05-07-2012, 12:26 PM

My T5 makes various sorts of noises. Decel noises. 5th gear cruise noises. Occasionally under full throttle it makes some different noises. Part of it is the aftermarket shifter (Tri-ax iirc) - I think it transmits more noise into the cabin than the more isolated (and sloppy) stock shifter.

500dollar744ti · 05-07-2012, 12:55 PM

t5 noise, very normal, especially on decel.

nathaninwa · 05-07-2012, 01:16 PM

With my cams in my 16v, the gear lash noise was horrible. Push clutch in, its silent, let out and clickity clack at idle. My T56 does the same thing. I called the tranny guy and he suggested drainng a quart of atf out and pouring in the molases lucas oil stabalizer. My neutral clatter is almost gone now.

Other than that, just like the others, my T5 was noisy on decel and 5th.

rallybrick · 05-07-2012, 01:47 PM

My brand new Ford Racing T5Z made similar noises out of the box.

paulcurran · 05-07-2012, 03:43 PM

My freshly rebuilt T5 is terrible, rattles routinely. Made a thick boot insulator from an old 240 seat foam, slightly better to live with now. Tried Royal Purple Synchromax, maybe 1% quieter. These things are nasty.

propav8r · 05-07-2012, 03:59 PM

Thanks all. Yeah, I'm using a shifter boot, and it's still noticeable, but apparently nothing to worry about. I appreciate the advice.

05-07-2012, 02:26 AM	#2
Turborg Board Member Join Date: Jun 2003 Location: Northern Ca	Everybody has same problem Almost all who have installed a t-5 have decell noise. Nothing that i have found can change it. I just turn the radio up louder. Vibration is not normal, but gear noise is. Mustang forums discuss the same problem. __________________ My 82 242MODS http://www.pbase.com/turborg/image/34982247 My 72 142E http://www.pbase.com/turborg/my_therapy_1972_volvo_142e

05-07-2012, 09:56 AM	#3
blkaplan 50 shades of beige Join Date: Jul 2002 Location: Rockville, MD	Do you have a shifter boot on? When I first test drove my car with the tko transmission and no shifter boot I thought for sure my transmission was gonna blow. I then installed a shifter boot and it got much quieter. Still audible but not straight cut gear box loud.... Most people say they are noisy, if you want to quiet everything down I would get a thick shifter boot and then put some sound deadening around the transmission tunel. That should help alot. __________________ www.BEIGEPOWER.com Kaplhenke Racing Facebook

05-07-2012, 11:51 AM	#9
MXSlotkin You did what to a Volvo? Join Date: Jun 2011 Location: Charleston, SC	My t5 makes a lot of noise when the car is sitting still in neutral and I let off the clutch. Is this cause the throwout bearing is just sitting there, under no load so it vibrates some? __________________ 1983 242 DL Rebuilt B23, K cam, Now with Megasquirt! T5 swap Innovate LC-1, Single Walbro intank pump, Ford 3G Alternator. IPD sway bars B23FT down the road. http://forums.turbobricks.com/showthread.php?t=239154 1994 944* Slow, quiet and airconditioned VX cam DD status Newest aquisition 1991 945 Turbo* Eventual DD after some things get fixed.

05-07-2012, 11:57 AM	#10
Magnum TE Broke another B230F+T Join Date: Nov 2002 Location: Santa Rosa Ca	The T5 in my Gold car has some PTSD, it's rebuild and shifts like butter, but it's a little traumatized from a previous rebuild. Mine's so loud I think I should use ear plugs for long trips. Loud gear lash on decel, loud TO bearing when in N, loud when cruising on the freeway. __________________ Goldie Bricks - '92 940T : B230F+T MSnS-e... The Gray Car - '92 940T : stock drive-train DD I have some cool stuff done to my cars The Gold Car: Owner since 2001 B230F+T MS1nS-E / Ford T5, 1pc DL ebay FMIC / Mechman Alternator T3 60/.63 ATP WG / 63#/hr CFI injectors Full 3" Turbo to tail / IPD TP Cam IPD bars / Coilovers Koni Dampners / Lower Chassis brace NIW-T3 camber plates / Full poly front end Full Kaplhenke Rear end -Torque rods -PH Bar -Subframe Daily Driver Last edited by Magnum TE; 05-07-2012 at 12:13 PM..

05-07-2012, 12:26 PM	#12
JohnMc PV Abuser Join Date: May 2004 Location: St. Louis	My T5 makes various sorts of noises. Decel noises. 5th gear cruise noises. Occasionally under full throttle it makes some different noises. Part of it is the aftermarket shifter (Tri-ax iirc) - I think it transmits more noise into the cabin than the more isolated (and sloppy) stock shifter. __________________ '63 PV Rat Rod '93 245 16VT Classic #1141

05-07-2012, 10:39 AM	#4
towerymt the real Towery Join Date: Sep 2002 Location: VA, USA	They are loud. What you describe sounds normal. Mine's pretty nice and it's still loud. Rob's old box was like gravel.

05-07-2012, 10:47 AM	#5
blkaplan 50 shades of beige Join Date: Jul 2002 Location: Rockville, MD	The 02 V6 Mustang t5 box I pulled from the JY had a damper bolted to the rear tail shaft housing. You might try something like that. It also had a large damper built into the slip yoke.

05-07-2012, 10:50 AM	#6
towerymt the real Towery Join Date: Sep 2002 Location: VA, USA	Mine had that chunk bolted to it too. Or maybe it was the one in the wagon, I have that piece though. The giant damped slip yoke won't come close to fitting in a 240. Tried it.

05-07-2012, 11:15 AM	#8
towerymt the real Towery Join Date: Sep 2002 Location: VA, USA	not even close. I tried it when I had the driveshaft off, cause I was going to plug up the trans and drop it off the jackstands. if you knock the outer ring off with the rubber between, maybe, but of course what's the point. there's a note on the yoshifab site that the 4cyl mustang driveshaft can be used with the driveshaft adapter if the "weight" is removed from the driveshaft. bet it's similar.

05-07-2012, 12:55 PM	#13
500dollar744ti still rides with MrDoug Join Date: Feb 2007 Location: Fairfax, VA	t5 noise, very normal, especially on decel. __________________ -Matt 1989 744T- 16v turbo, '94 FD-block, RSI pistons/rods, GT35R, Tial 38mm, RFL, MSnS-E, DSM spark, 100lb Delphis, 4.6 springs, Bondo header, Heebspeed intake, Q45 90mm TB, Bosch 044 FP, 12x24x3 ebayIC, w/c t5, Clutchnet 4puck/PP, 4.10 G80, IPD sways, 960 brakes. 1983 Ford F150- 302ci, C6/4x4, 7" lift, 35s. 1990 Cobia San Marino 225 ECS- MCM 350 Mag, GM Bowtie Intake, Bulletspeed lower, HR-Titan 20p. the rest: 1996 850t 179k, 1998 S90 175k, 2004 V70 2.4 175k, 2005 XC90 2.5t AWD 122k.

05-07-2012, 01:16 PM	#14
nathaninwa AEM infiniwhat? Join Date: Aug 2009 Location: WA	With my cams in my 16v, the gear lash noise was horrible. Push clutch in, its silent, let out and clickity clack at idle. My T56 does the same thing. I called the tranny guy and he suggested drainng a quart of atf out and pouring in the molases lucas oil stabalizer. My neutral clatter is almost gone now. Other than that, just like the others, my T5 was noisy on decel and 5th. __________________ 942j 623whp 944 568whp RIP 941g 16vhttp://forums.turbobricks.com/showthread.php?t=199503 SHEETMETAL INTAKEhttp://forums.turbobricks.com/showth...etmetal+intake feedbackhttp://forums.turbobricks.com/showth...ght=nathaninwa http://brickspeed.net/forum/forumdis...?fid=42&page=1

05-07-2012, 01:47 PM	#15
rallybrick Board Member Join Date: Jan 2007 Location: People's Republik of Socal	My brand new Ford Racing T5Z made similar noises out of the box.

05-07-2012, 03:43 PM	#16
paulcurran Board Member Join Date: Feb 2005	t5 My freshly rebuilt T5 is terrible, rattles routinely. Made a thick boot insulator from an old 240 seat foam, slightly better to live with now. Tried Royal Purple Synchromax, maybe 1% quieter. These things are nasty.

05-07-2012, 03:59 PM	#17
propav8r Junkyard Smuggler Join Date: Jan 2010 Location: Cullowhee, NC (WCU)	Thanks all. Yeah, I'm using a shifter boot, and it's still noticeable, but apparently nothing to worry about. I appreciate the advice.

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