Welcome to DSMtuners - the largest Mitsubishi Eclipse, Eagle Talon, 4G63t and 420A DSM performance resource on the web



















Login



Go Back   DSMtuners > DSM Forums > DSM Tech > Cylinder Head & Short Block
Welcome to DSMtuners - the largest Mitsubishi Eclipse, Eagle Talon, 4G63t and 420A DSM performance resource
You are browsing the site as a GUEST. Please login (or register) and gain the ability to post on our site and interact with other DSMers. You also get to browse the site with fewer advertisements. It is FREE to join!

Cylinder Head & Short Block: 4G63 cams, valvetrain, pistons, rods, stroker kits, 6-bolt swaps, hybrids, etc. Read this Forum's Strict Guidelines.

Reply  
 
LinkBack   Thread Tools
Old 01-30-2013, 09:41 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #1 (permalink)
Proven Member
 

InfiniteGSX's Avatar
Registered: Dec 2002
Tech Posts: 2,473
Photos: 16
Classifieds Rating: 5
Reputation: InfiniteGSX is pretty helpful and trustworthy
Send a message via AIM to InfiniteGSX Send a message via MSN to InfiniteGSX Send a message via Yahoo to InfiniteGSX

'Quick' Main Bearing Replacement


I have a quick question for a friend. He just rebuilt most of his bottom end after frying some rings and he did a good job with the motor in the car. Replaced the rod bearings with ACL's. New Pistons, New Rings, Honed the cylinder walls, MLS Head Gasket, New Valve Stem Seals. But he did it without pulling the motor or trans. So the Crank bearings weren't replaced.

Car started up today and is running good. He has an idle issue we think is the FIAV but I setup his Butterfly set screw and BISS. and he went for a long drive for his first part of breaking it in. So far in my mind the motor is running great, Until he text me asking me why when everytime he presses the clutch, the motor dies........ My only explanation is when he fried the rings, he also damaged the thrust bearing.... Or the thrust bearing is just normal wear and tear but his motor is not strong enough yet. IDK.

He still has the ACL Mains that came with his engine kit. So were wondering how easy will it be to do with the engine in the car. I was thinking it possible to pull the transmission, flywheel, and dropping the crank down not unbolting the rods and just pulling the mains and thrust bearing and cleaning the surfaces and replacing them that way. What are your thoughts? This motor right now is halfway in on a break in and the only thing that wasn't replaced was the mains. So he's about ready to tear it down so he can save his break in oil he just poured in.



____________________________
-Josh
1997 Eclipse GSX - Minden Pearl Silver
View photos of this member's car 

mark post as helpful recommend reputation points    Reply With Quote
Old 01-30-2013, 09:59 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #2 (permalink)
Proven Member
 

abaum565's Avatar
Registered: Aug 2006
Tech Posts: 246
Photos: 2
Classifieds Rating: 0
Reputation: abaum565 is pretty helpful and trustworthy
At that point with all the work arounds to keep the motor in, why not just pull it and do it right. Probably not going to loose much time and effort.

To answer your question, I don't see why you couldn't do that.
View photos of this member's car 

mark post as helpful recommend reputation points    Reply With Quote
Old 01-31-2013, 02:53 AM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #3 (permalink)
Proven Member
 

InfiniteGSX's Avatar
Registered: Dec 2002
Tech Posts: 2,473
Photos: 16
Classifieds Rating: 5
Reputation: InfiniteGSX is pretty helpful and trustworthy
Send a message via AIM to InfiniteGSX Send a message via MSN to InfiniteGSX Send a message via Yahoo to InfiniteGSX
Pulling a motor is much harder. I just wanted to know if people have done it, or is it too hard to get the block side bearings in with the crank hanging by the rods. Would like to just pull the trans since thats easy enough being FWD, and just drop oil pan, crank, pull bearings, clean surfaces and replace bearings and reassemble. I just feel bad for this guy, going through all this work to get his only car back running, to have the only thing he didn't replace end up failing also.


____________________________
-Josh
1997 Eclipse GSX - Minden Pearl Silver
View photos of this member's car 

mark post as helpful recommend reputation points    Reply With Quote
Old 01-31-2013, 04:14 AM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #4 (permalink)
Proven Member
 

donniekak's Avatar
Registered: Mar 2008
Tech Posts: 2,961
Classifieds Rating: 19
Reputation: donniekak is an experienced, knowledgeable member worth listening todonniekak is an experienced, knowledgeable member worth listening todonniekak is an experienced, knowledgeable member worth listening todonniekak is an experienced, knowledgeable member worth listening to
It's impossible to get all of the honing grit out of the engine without washing the block. I bet all of the bearings have honing grit in them.

mark post as helpful recommend reputation points    Reply With Quote
Old 01-31-2013, 07:17 AM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #5 (permalink)
Proven Member
 

T is for TURBO's Avatar
Registered: Jan 2005
Tech Posts: 1,540
Photos: 8
Classifieds Rating: 0
Reputation: T is for TURBO is pretty helpful and trustworthy
Send a message via MSN to T is for TURBO
Quote:
Originally Posted by donniekak View Post
It's impossible to get all of the honing grit out of the engine without washing the block. I bet all of the bearings have honing grit in them.
Yup

Also, how is all of that stuff easier that pulling the engine. With two people, you should be able to pull the engine out in under an hour. I guarantee more time than that was spend dicking around trying to do all of that stuff with the engine in the car.


____________________________
-Shawn
View photos of this member's car 

mark post as helpful recommend reputation points    Reply With Quote
Old 01-31-2013, 07:22 AM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #6 (permalink)
Proven Member
 

iugrad92turbo's Avatar
Registered: May 2007
Tech Posts: 9,199
Photos: 17
Classified Ads: 1
Classifieds Rating: 16
Reputation: iugrad92turbo is pretty helpful and trustworthy
Send a message via Yahoo to iugrad92turbo
Been there pull engine get it cleaned out or other wise you'll have other issues down the road. for it once the right way.


____________________________
DSMer Since 94

Ecmlink

Sd on e 85 soon
Visit iugrad92turbo's homepage!  View photos of this member's car 

mark post as helpful recommend reputation points    Reply With Quote
Old 01-31-2013, 08:01 AM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #7 (permalink)
Proven Member
 

gieri002's Avatar
Registered: Feb 2008
Tech Posts: 675
Classified Ads: 3
Classifieds Rating: 8
Reputation: gieri002 is an unknown
You do not need to pull the engine:

Time to change rod/main bearings

mark post as helpful recommend reputation points    Reply With Quote
Old 01-31-2013, 08:05 AM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #8 (permalink)
Proven Member
 

YZFR1's Avatar
Registered: Apr 2010
Tech Posts: 405
Photos: 1
Classifieds Rating: 3
Reputation: YZFR1 is an unknown
Pull the main caps one at a time and replace the bearings also one at a time. If not, than you will also be replacing your front and rear seals. Use a nail to carefully guide new bearings in.


____________________________
R1 Power
View photos of this member's car 

mark post as helpful recommend reputation points    Reply With Quote
Old 01-31-2013, 10:10 AM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #9 (permalink)
DSMtuners Supporting Vendor
 
Jackson Auto Machine 

JacksonAuto's Avatar
Registered: Nov 2005
Tech Posts: 598
Classifieds Rating: 1
Reputation: JacksonAuto is extremely helpful and trustworthyJacksonAuto is extremely helpful and trustworthyJacksonAuto is extremely helpful and trustworthy
The entire engine is contaminated with debris from honing the block. The oiling system is contaminated with this debris plus material from the damaged bearing. There is no way to clean it out short of removing the engine from the car, stripping it to a bare block, cleaning all of the parts and reassembling it once all the clearances are checked. Not to mention that after "frying rings" combined with mileage and wear, the cylinders aren't round. Installing new pistons and rings into worn, out-of-round cylinders kinda defeats the purpose of a rebuild.


____________________________
Like us on Facebook!
Visit JacksonAuto's homepage! 

mark post as helpful recommend reputation points    Reply With Quote
Old 02-04-2013, 03:25 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #10 (permalink)
Proven Member
 

InfiniteGSX's Avatar
Registered: Dec 2002
Tech Posts: 2,473
Photos: 16
Classifieds Rating: 5
Reputation: InfiniteGSX is pretty helpful and trustworthy
Send a message via AIM to InfiniteGSX Send a message via MSN to InfiniteGSX Send a message via Yahoo to InfiniteGSX
I'm at a loss for words. So I'll just throw it out there, Engine is re assembled and running amazing and now have a few hundred miles on it going on first oil change now. Thx for the help. Guy did it all faster than I could type this up there.


____________________________
-Josh
1997 Eclipse GSX - Minden Pearl Silver
View photos of this member's car 

mark post as helpful recommend reputation points    Reply With Quote
Old 02-06-2013, 12:23 AM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #11 (permalink)
Proven Member
 

lowell's Avatar
Registered: Apr 2006
Tech Posts: 278
Photos: 57
Classifieds Rating: 0
Reputation: lowell is more helpful than not
Quote:
Originally Posted by InfiniteGSX View Post
I'm at a loss for words. So I'll just throw it out there, Engine is re assembled and running amazing and now have a few hundred miles on it going on first oil change now. Thx for the help. Guy did it all faster than I could type this up there.
Keep an eye on the thrust measurement, and cut your oil filters open to check for debris. Glad to hear it worked out for you.


____________________________
92 Laser 50trim 10.97ET, best MPH 133.94 w/ DS-MAP
View photos of this member's car 

mark post as helpful recommend reputation points    Reply With Quote
Reply

Bookmarks

Thread Tools

 

» Recent DSM Photo
» Current Poll
How many times have you been to the Shootout?
1 - 40.00%
168 Votes
2-5 - 41.67%
175 Votes
6-10 - 10.48%
44 Votes
11-15 - 3.10%
13 Votes
16-20 - 4.76%
20 Votes
Total Votes: 420
You may not vote on this poll.
» Online Users: 459
128 members and 331 guests
Most users ever online was 1,704, 03-17-2008 at 09:11 PM.
DSMtuners Main Sections
DSM Forums
DSM Regional Forums
DSM Builds/Journals
DSM Articles
DSM Tech Guides
DSM Upgrade Paths
DSM Parts Reviews
DSM Vendor Reviews

DSM Classifieds
DSM Parts Guides
DSM Photos
DSM Videos
DSM Timeslips
DSM Dyno Sheets
Shirts & Apparel
DSMtuners Decals

Advertising Info
Our Sponsors
Site Rules
Terms of Service
Privacy Policy
Site FAQ
About Us
Contact Us

© 2014 DSMtuners.com - All Rights Reserved

DSMtuners is not affiliated with Diamond Star Motors. The Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, Mitsubishi Galant VR-4, and associated logos are trademarks of Diamond Star Motors, Mitsubishi Motors, and Chrysler Corporation. No, we do not hand out car sponsorships.

All times are GMT -7. The time now is 03:58 AM.


Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

Search Engine Optimization by vBSEO 3.6.0