DSM IN MN
Supporting VIP
- 705
- 23
- May 17, 2009
-
Wadena,
Minnesota
I have read one thread somewhat pertaining to this. It threw me for a loop however because it was for a 4g64 out of a Galant rather than just a 4g63.
Any who, I plan on starting a semi-build for the engine to swap into my Talon in the near future (a year or less hopefully). What I am a tad confused about is what main bearings I want, should and can use.
As of right now I have a block out of an Evo. III. The engine that is in my Talon is the original, to my knowledge at least. The car is a 1995 with a 1994 build date. Originally I had planned to use the Evo. block as the block everything will go into. Then from there I could just (in theory), swap it over. Lately I have been wondering if I could use different main bearings in the Evo. block to avoid the possible crank walk issue found in the earlier 7-bolts (1995-1996).
I know the issue came up because (as far as I know), people would install clutches that had too heavy of clamping force which in turn would push the crank so much so that it would wear down the thrust washers. Which then would allow the crank to move, eventually destroying everything.
In 1997 they moved to the one piece thrust washer/main bearing design. This improved or got rid of the threat of crank walk or at least this is what I understand. I recently have read that Mitsubishi revised this setup/design again in 1998-1999 though.
So after all of this, what I am wondering is, is which bearings can I run in my (Evo. III) block? Do I have to stick with the earlier multi-piece thrust washer/main bearing design, or can I switch to the 1997 or 1998-1999 single piece setup?
Any who, I plan on starting a semi-build for the engine to swap into my Talon in the near future (a year or less hopefully). What I am a tad confused about is what main bearings I want, should and can use.
As of right now I have a block out of an Evo. III. The engine that is in my Talon is the original, to my knowledge at least. The car is a 1995 with a 1994 build date. Originally I had planned to use the Evo. block as the block everything will go into. Then from there I could just (in theory), swap it over. Lately I have been wondering if I could use different main bearings in the Evo. block to avoid the possible crank walk issue found in the earlier 7-bolts (1995-1996).
I know the issue came up because (as far as I know), people would install clutches that had too heavy of clamping force which in turn would push the crank so much so that it would wear down the thrust washers. Which then would allow the crank to move, eventually destroying everything.
In 1997 they moved to the one piece thrust washer/main bearing design. This improved or got rid of the threat of crank walk or at least this is what I understand. I recently have read that Mitsubishi revised this setup/design again in 1998-1999 though.
So after all of this, what I am wondering is, is which bearings can I run in my (Evo. III) block? Do I have to stick with the earlier multi-piece thrust washer/main bearing design, or can I switch to the 1997 or 1998-1999 single piece setup?
