Welcome Guest ( Log In | Register )

Mitsubishi-Forums.com > Mitsubishi Models > 3000GT & GTO Forum
     
Mitsubishi-Forums.com - The UNOFFICIAL Mitsubishi Community This site is NOT affiliated in any way with Mitsubishi or any of it's subsidiaries. Our goal is to provide Mitsubishi owners an information outlet - a means to communicate with other Mitsubishi owners. It is simply a community where fans and owners can get the right information for tuning, customization and general discussions on anything about Mitsubishi. You'll find the answer to almost any question about your Mitsubishi in this site. If not, simply join and ask! We have many willing expert members just waiting to answer your questions.

                        
Powered By IP.Board 2.3.6 © 2008  IPS, Inc.
Mitsubishi-Forums.com is not affiliated with or endorsed by Mitsubishi Motors.
 
 Reply to this topicStart new topic

Do you like Mitsubishi-Forums.com? Link to us and help spread the word about our forum. Thanks!
> 5 Speed Gearbox Crunching/grinding, what's going on?
autoxtraz
post Aug 1 2008, 09:25 AM
Post #1


Newbie


Group: Members
Posts: 4
Joined: 31-July 08
Member No.: 61,999
Status: Offline
Location: UK
Drives: 3000 GTO
I've got a 1993 UK model T/Turbo with 5 speed box - 25 spline model - took it out yesterday for 1st time ran ok until it stalled badly - after that it sounded as if a CV joint was collapsing. Drove it 20 miles home carefully but grinding/bumping/crunching got progressivle worse....and then it would go quite!!!!!than back again and so on. This was from zero to 40 mph. Jacked up removed all 4 drivshafts - no problems anywhere. Went out today and removed crown wheel/pinion from transfer case - again no problems - full of oil too. End of main shaft from transfer to gearbox was 100% ok - could not pull it out to check other end - is this possible in situ?? but no major free play - ANY suggestions before we have to completely remove box???????
Go to the top of the page
 
QuoteReply
EMC 3000gt
post Aug 1 2008, 10:18 AM
Post #2


Resident Honda Owner
Group Icon

Group: Super Mod
Posts: 7,056
Joined: 18-October 06
Member No.: 30,873
Status: Offline
Location: Tri-State Area
Drives: 1992 3000 GT TT, 2004 Acura RSX Type - S
Were there any other symptoms? Car shaking, bucking?
Go to the top of the page
 
QuoteReply
autoxtraz
post Aug 2 2008, 05:09 AM
Post #3


Newbie


Group: Members
Posts: 4
Joined: 31-July 08
Member No.: 61,999
Status: Offline
Location: UK
Drives: 3000 GTO
Nope - nothing out of the ordinary even at 70 mph - totally sounded like cv breaking up.
Go to the top of the page
 
QuoteReply
enigma48
post Aug 2 2008, 07:24 AM
Post #4


Full Member
**

Group: Members
Posts: 95
Joined: 23-February 08
Member No.: 53,092
Status: Offline
Location: united kingdom
Drives: Mitsubishi GTO 1991
sounds like the output shaft has stripped! as it grinding intermitently and then quiet, you should be able to pull the t/f box in situ, I think there 5x17mm bolts going into the g/box casing and it will pull off!
Go to the top of the page
 
QuoteReply
BlinkRA182
post Aug 2 2008, 02:46 PM
Post #5


Full Member
**

Group: Members
Posts: 86
Joined: 17-April 08
Member No.: 56,182
Status: Offline
Location: New Braunfels, TX
Drives: 1993 3000GT VR-4
broken synchro? shift fork?
Go to the top of the page
 
QuoteReply
autoxtraz
post Aug 2 2008, 04:05 PM
Post #6


Newbie


Group: Members
Posts: 4
Joined: 31-July 08
Member No.: 61,999
Status: Offline
Location: UK
Drives: 3000 GTO
Do you mean the main output shaft (centre shaft) from box to t/fer case? and this will pull out without problem? or the transfer case shaft that runs to the prop??
Go to the top of the page
 
QuoteReply
Hans_GZP
post Aug 3 2008, 12:19 PM
Post #7


Full Member
**

Group: Members
Posts: 121
Joined: 13-July 08
Member No.: 61,044
Status: Offline
Location: Easton, PA
Drives: 94 Dodge Stealth TT, 97 3000GT VR4, 97 3000GT VR4, 91 Stealth ES, 92 Diamante, 92 Galant VR4, 95 Montero SR, 97 3000GT
He's talking about the shaft that comes out of the transmission and into the transfer case. I too would suspect that as your problem. They can be inspected by removing the t-case from the transmission. If it is worn out, you can swap it without having to pull the entire transmission out. I can post more details on the procedure if that is your problem.
Go to the top of the page
 
QuoteReply
autoxtraz
post Aug 3 2008, 05:33 PM
Post #8


Newbie


Group: Members
Posts: 4
Joined: 31-July 08
Member No.: 61,999
Status: Offline
Location: UK
Drives: 3000 GTO
Hi. We removed the cover and crown wheel assy and all were ok - there was no end play on the centre shaft which was still inside main gearbox - we did not want to remove this in case we could not put it back in. We will remove tomorrow along with tranfer housing and strip it at the same time. If we remove it and it is damage the whold gearbox will then need removing to clear out debri etc.
Go to the top of the page
 
QuoteReply
Hans_GZP
post Aug 3 2008, 05:59 PM
Post #9


Full Member
**

Group: Members
Posts: 121
Joined: 13-July 08
Member No.: 61,044
Status: Offline
Location: Easton, PA
Drives: 94 Dodge Stealth TT, 97 3000GT VR4, 97 3000GT VR4, 91 Stealth ES, 92 Diamante, 92 Galant VR4, 95 Montero SR, 97 3000GT
They usually don't strip inside the transmission. The splines wear out on the part that is exposed (this part slides into the transfer case). Also, check the splines inside the transfer case to make sure they are fully intact as well.
Go to the top of the page
 
QuoteReply
  Advanced Search
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

Reply to this topicStart new topic
Get your Mitsubishi listed in the Garage Today, for FREE, to share with the world what you drive and what toys and modifications you have.

Collapse

> Similar Topics

  Topic Replies Topic Starter Views Last Action
No New Posts Pinned: Gearbox Manuals
Free to download
 5 gevo 1,382 21st November 2008 - 04:28 AM
Last post by: Emka
No New Posts Speed Corp's November Featured Car Winner
 0 Crypto 24 11th November 2008 - 01:28 PM
Last post by: Crypto
No New Posts Gearbox
tiptronic box sticking in 3rd
 1 devonmark 60 7th November 2008 - 03:18 PM
Last post by: KiT TeUnG 2549
No New Posts Speedometer Not Working Properly
My speedometer jumps mphs very erraticly
 4 RyBegz 89 29th October 2008 - 03:01 PM
Last post by: RyBegz
No New Posts Gearbox 2.4l '95 L400
Gearbox Replacement
 2 jasantbest 106 15th October 2008 - 04:14 PM
Last post by: jasantbest

 
 
 
Time is now: 3rd December 2008 - 09:06 PM
(c) 2004 Mitsubishi-Forums. All rights reserved.
Mitsubishi-Forums.com is not affiliated with or endorsed by Mitsubishi Motors.