The Central Hub for DSM Community and Information

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. This is where the DSM platform history is documented and archived. Log in to help us in our mission, and to remove most ads from the browsing experience.

I need help. Heres my recent build. New problems.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

wrknmike924

10+ Year Contributor
92
0
Sep 4, 2008
Cary, North Carolina
Hey to all. I am still fairly new to this forum stuff and am going to try my best with this.

Long story short, waterlocked my 420a bout five months ago. Decided to build it. Currently it is running

Wiseco 8:1 Pistons. Bored .20 over
Eagle H Beam Rods
Clevite 77 Bearings. (rod and main)
ARP Everything. (rod, main, etc.)
Cometic Head gasket.
OEM gaskets everywhere else
Spec stage 3 clutch
Fidanza Lightweight flywheel
Portfueler installed but not connected.
OEM Timing belt

Stock crank (checked and resurfaced)
Stock head (Tested and shaved.)
Stock Tranny.

Installed. Fired. Ran great minus an oil leak. Drove for 110 miles and pulled the motor again to find that the o ring for the oil filter oil passage was missing. Replaced and reinstalled and oil leak stopped. While the motor was out i checked for any visible wear or anything that could possibly be causing the problems listed below. No go.

The problems
1. Rattle from the gear side of the tranny,(back side). Sounds like marbles bouncing around until you press the clutch. Almost positive that is the TOB. Altho i have never owned or driven a stage 3 clutch. Is this normal?

2. Loud noise from head area. When reving up, 2k-4k without stoping i can hear a very loud rattle. Like a bolt is loose. Not random. Very consistant.

Also in any gear at 2k-4k, holding at a 1/4 throttle it will constantly do it. Very loudly.

3. Launched the car rolling at 3k in first gear. Broke both the front and rear motor mount. :ohdamn: Do i need to have polyurethane mounts even tho i am not turbo yet with a stage 3?

The car has now been driven 1100 miles with no catastrophic failure. Pulls strong and hard to 5k. (haven't wanted to push more than that) These problems have been here since initial start up 1100 miles ago.

Am really at a stand still at the moment. :confused:

Plans for this car are a 350hp daily driver. Roughly.

Any ideas are greatly apreciated!! Thanks!
 

Attachments

You must be registered for see attachments list
I would probably take the valve cover off and make sure everything is good inside for the valvetrain noise.
It sounded like your tob theory may be correct as well.
Wow! that rod in the pic is bent!
 
i have a 95 N/T it also has the rattling noise coming from the trani i replaced the clutch with a clutch kit from advanced auto parts hoping it would fix the problem and the car had about 150,000 miles and thought it need to be replaced, but now it only does it every once in a while. i was wondering if it was possibly the scynchros not sure? it also grinds on 2nd gear because it needs scynchros. does your trani grind on any of the gears? sorry if that didnt help out any ill be taking transmisions and engine performance next semster and could probably help you better but till then good luck.
 
i have a 95 N/T it also has the rattling noise coming from the trani i replaced the clutch with a clutch kit from advanced auto parts hoping it would fix the problem and the car had about 150,000 miles and thought it need to be replaced, but now it only does it every once in a while. i was wondering if it was possibly the scynchros not sure? it also grinds on 2nd gear because it needs scynchros. does your trani grind on any of the gears? sorry if that didnt help out any ill be taking transmisions and engine performance next semster and could probably help you better but till then good luck.
 
I would probably take the valve cover off and make sure everything is good inside for the valvetrain noise.

No dice. Removed it yesterday and not a single thing was out of place. All the journels looked good, no loose parts, no lose bolts. Was really hopeing to find a washer or something stuck down in there but no good.

Wondering if i should just get another head and start trying to eliminate the problem. Did not make this noise prior to the waterlock.

And suprisingly enough. The car still ran fine with those rods bent that way. haha just made a loudddd ticking noise.
 
Ill see if i can find a camera or something somewhere. Do not think it is the lifters. The more and more i think about it and the more opinions i get the more it sounds like the noise is inside the transmission and working its way back threw the motor. The noise will come and go with different RPM'S in different gears, and when shifting.

Car does have 170k on stock head and tranny. :confused:
 
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community

Build Thread Updates

Latest Classifieds

  • For sale 4G63 3 inch Magnaflow SS high flow cat
    3 inch Magnaflow stainless cat. High flow. 18.25 inches. Flange holes are 4 1/8 center. Has...
    • Galant665
    • Updated:
  • For sale 4G63 Forge Motorsports BOV
    Original Forge Motorsports bov. Adjustable with over 80 clicks on the dial. Nice to use for...
    • Galant665
    • Updated:
  • Wanted 1g 1991 Black Cherry Eagle Talon
    5-speed
    • bamatalon
    • Updated:
    • Expires
  • For sale Misc Left Over Parts
    Hello, I have a few left over parts for sale, these do not include shipping, please pm me for a...
    • r3dmak
    • Updated:
    • Expires
  • For sale Alpha Injection Clinic 2200cc for 4G63 DSM/EVO
    I have a set of Alpha Injection Clinic 2200cc high z injectors for DSM/EVO. I am stepping up to...
    • spoolinpos
    • Updated:
    • Expires
Back
Top