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 © 2009  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!
> Still Knocking..., This *** is never ending..it's June!!!!
3kGT_FuSiOn
post Jun 13 2008, 03:29 PM
Post #1


Full Member
**

Group: Members
Posts: 101
Joined: 12-March 07
Member No.: 36,764
Status: Offline
Location: New York, USA
Drives: 1996 Mitsubishi 3000GT SL
So as most of you know i put some plugs and wires and stuff on my 3000GT this past winter and when i fired her back up she knocked. I don't know what the problem is but it's still doing the same thing. I just replaced the coil and STILL knocks. I replaced the plugs 3 times and the wires twice. STILL knocks. I narrowed it down to the #1 cylinder. And i don't see it being any moving parts at all because it doesn't make a noise when it's turning over. And all the spun bearing videos and stuff like that i've watched the cars make noise during startup.

http://youtube.com/watch?v=b4T7UjY7X64

^^ thats a video of the car knocking..lemme know what you think it could be.
Go to the top of the page
 
QuoteReply
EMC 3000gt
post Jun 13 2008, 03:48 PM
Post #2


Resident Honda Owner
Group Icon

Group: Super Mod
Posts: 7,276
Joined: 18-October 06
Member No.: 30,873
Status: Offline
Location: Tri-State Area
Drives: 1992 3000 GT TT, 2004 Acura RSX Type - S
did you connect the ground wire to the back of the plenum?
Go to the top of the page
 
QuoteReply
3kGT_FuSiOn
post Jun 13 2008, 04:09 PM
Post #3


Full Member
**

Group: Members
Posts: 101
Joined: 12-March 07
Member No.: 36,764
Status: Offline
Location: New York, USA
Drives: 1996 Mitsubishi 3000GT SL
Yeah i did..thats one of the first things i took a look at. I checked a bunch of little things. My next step is to do a compression test on the number 1 cylinder to see what the values are...if it's low my guess is the Valve has something under it thats keeping it from going down..which would explain the dead cylinder...moist spark plug and hot upper intake do to exhaust firing back through it..
Go to the top of the page
 
QuoteReply
EMC 3000gt
post Jun 13 2008, 05:29 PM
Post #4


Resident Honda Owner
Group Icon

Group: Super Mod
Posts: 7,276
Joined: 18-October 06
Member No.: 30,873
Status: Offline
Location: Tri-State Area
Drives: 1992 3000 GT TT, 2004 Acura RSX Type - S
Dude I have no idea.
Go to the top of the page
 
QuoteReply
3kGT_FuSiOn
post Jun 14 2008, 12:31 AM
Post #5


Full Member
**

Group: Members
Posts: 101
Joined: 12-March 07
Member No.: 36,764
Status: Offline
Location: New York, USA
Drives: 1996 Mitsubishi 3000GT SL
You and i both have no idea. If this compression test doesn't help me out then i'm COMPLETELY lost. I'll just end up taking it to a dealership and spend $30,000 to have them fix it.... Thats where i'm at right now.
Go to the top of the page
 
QuoteReply
enigma48
post Jun 14 2008, 02:29 AM
Post #6


Full Member
**

Group: Members
Posts: 97
Joined: 23-February 08
Member No.: 53,092
Status: Offline
Location: united kingdom
Drives: Mitsubishi GTO 1991
have you checked the roller rockers on that cylinder one of them could have popped off so the valve would not be opening creating a miss fire type symptom
Go to the top of the page
 
QuoteReply
3kGT_FuSiOn
post Jun 14 2008, 01:44 PM
Post #7


Full Member
**

Group: Members
Posts: 101
Joined: 12-March 07
Member No.: 36,764
Status: Offline
Location: New York, USA
Drives: 1996 Mitsubishi 3000GT SL
Yeah. I took spark away from all cylinders and cranked it over with the valve cover off hoping to see something out of whack. Everything was perfect. So the only other thing i can think of is it being a jammed open valve
Go to the top of the page
 
QuoteReply
3kGT_FuSiOn
post Jun 19 2008, 08:11 PM
Post #8


Full Member
**

Group: Members
Posts: 101
Joined: 12-March 07
Member No.: 36,764
Status: Offline
Location: New York, USA
Drives: 1996 Mitsubishi 3000GT SL
Well.....it turns out that the the reason #1 cylinder is dead is because #1 cylinder is blown... Sleeve is cracked..piston is cracked...chamber for #1 is punched in and valves are all stuck open. I need a new motor...the end :crying:
Go to the top of the page
 
QuoteReply
EMC 3000gt
post Jun 20 2008, 12:51 PM
Post #9


Resident Honda Owner
Group Icon

Group: Super Mod
Posts: 7,276
Joined: 18-October 06
Member No.: 30,873
Status: Offline
Location: Tri-State Area
Drives: 1992 3000 GT TT, 2004 Acura RSX Type - S
ouch...
Go to the top of the page
 
QuoteReply
3kGT_FuSiOn
post Jun 20 2008, 08:55 PM
Post #10


Full Member
**

Group: Members
Posts: 101
Joined: 12-March 07
Member No.: 36,764
Status: Offline
Location: New York, USA
Drives: 1996 Mitsubishi 3000GT SL
Bought a motor today... having it put in on Wednesday NOT a good time to spend $3000 to have my car fixed considering i'm leaving for school on Friday
Go to the top of the page
 
QuoteReply
Chronos_c4
post Jun 22 2008, 01:29 AM
Post #11


Member
*

Group: Members
Posts: 65
Joined: 27-May 08
Member No.: 58,434
Status: Offline
Location: New Zealand
Drives: 1991 Mitsubishi GTO TT, 1997 Mitsubishi Legnum
lol school

cant say i could have ever supported my GTO when i was at school!
Go to the top of the page
 
QuoteReply
3kGT_FuSiOn
post Jun 22 2008, 11:58 AM
Post #12


Full Member
**

Group: Members
Posts: 101
Joined: 12-March 07
Member No.: 36,764
Status: Offline
Location: New York, USA
Drives: 1996 Mitsubishi 3000GT SL
Ironically i'm going to school for Automotive Technology and High Performance Power Trains. So once i'm at school i get parts at cost and all free labor(obviously) with snap-on tools. an AWD dyno and all the best help i can ask for.
Go to the top of the page
 
QuoteReply
EMC 3000gt
post Jun 23 2008, 09:30 AM
Post #13


Resident Honda Owner
Group Icon

Group: Super Mod
Posts: 7,276
Joined: 18-October 06
Member No.: 30,873
Status: Offline
Location: Tri-State Area
Drives: 1992 3000 GT TT, 2004 Acura RSX Type - S
To bad you only need one set of rollers for your car :P
Go to the top of the page
 
QuoteReply
3kGT_FuSiOn
post Jun 23 2008, 11:20 AM
Post #14


Full Member
**

Group: Members
Posts: 101
Joined: 12-March 07
Member No.: 36,764
Status: Offline
Location: New York, USA
Drives: 1996 Mitsubishi 3000GT SL
ooooooooooo burnnn haha yeah but for 7 months my buddy in the Navy is being deployed to Italy and he's leaving me his STi to work on. :P back at ya haha <3
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 Knocking
 5 lilgoob5043 41 18th December 2008 - 10:33 AM
Last post by: Zizman
No new Still bogging at WOT
 30 Chrispy 223 12th December 2008 - 05:31 PM
Last post by: EMC 3000gt
No New Posts Knocking Drivers Side
Carisma 1.8glxi
 0 karatekidportree 61 22nd October 2008 - 01:53 PM
Last post by: karatekidportree
No New Posts Topic has attachmentsStill Cruise Control
Vacuum or...
 2 Spoof145 108 14th September 2008 - 02:24 AM
Last post by: Spoof145
No New Posts Knocking On Left Hand Turn And Back Fishtail !
any ideas?
 2 debznz 185 11th August 2008 - 05:22 AM
Last post by: debznz

 
 
 
Time is now: 7th January 2009 - 03:33 PM
(c) 2004 Mitsubishi-Forums. All rights reserved.
Mitsubishi-Forums.com is not affiliated with or endorsed by Mitsubishi Motors.