Since I have to pull the engine apart to do the piston rings, I want to take the time to change the crank shaft bearings. Can I just buy standard size or do I have to get bigger ones?
#84566, "RE: Replacing Crank Shaft Bearings...." In response to Reply # 1
I would also *highly* suggest you have your crank bearing journals polished by a machine shop. This ensures prober bearing break in, and they will also mic the journals to see if they are in spec.
13.5 @108 MPH-2.2 60ft(stupid FWD!) S16G @ 18 PSI/FMIC/Running on MegaSquirt II (Now with sequential fuel injection) My webpage: http://eclipsed4evr.home.comcast.net -1998 Mitsubishi Eclipse RS-T- "Toy" -1992 Plymouth Laser Turbo AWD(SOLD) -2000 Honda CR-V(daily)
#84568, "RE: Replacing Crank Shaft Bearings...." In response to Reply # 2
Originally posted by XtremeRS I would also *highly* suggest you have your crank bearing journals polished by a machine shop. This ensures prober bearing break in, and they will also mic the journals to see if they are in spec.
How much would this cost? The engine doesnt have more then 500 miles, but it ran with oil mixed in coolant so I wanna do this all once.
#84570, "RE: Replacing Crank Shaft Bearings...." In response to Reply # 3
Originally posted by xdannyx25
Originally posted by XtremeRS I would also *highly* suggest you have your crank bearing journals polished by a machine shop. This ensures prober bearing break in, and they will also mic the journals to see if they are in spec.
How much would this cost? The engine doesnt have more then 500 miles, but it ran with oil mixed in coolant so I wanna do this all once.
That's really a tough call then with only 500 miles. Best thing to do is to take a good look at the journals, and maybe even have a machine shop just look at it, for a second opinion. I suppose if everything looks fine, then just a new set of bearings would be ok. Just going to have to see what they look like. Not too sure on the cost of crank polishing, but I'd figure in 40-50 bucks.
13.5 @108 MPH-2.2 60ft(stupid FWD!) S16G @ 18 PSI/FMIC/Running on MegaSquirt II (Now with sequential fuel injection) My webpage: http://eclipsed4evr.home.comcast.net -1998 Mitsubishi Eclipse RS-T- "Toy" -1992 Plymouth Laser Turbo AWD(SOLD) -2000 Honda CR-V(daily)
#84571, "RE: Replacing Crank Shaft Bearings...." In response to Reply # 4
If I were you, I'd just pop new bearings in and plastiguage each one. If you are out of spec, then take it in to a machine shop, otherwise, don't worry about it.
Matt 1995 Eclipse GS 2.0L, S16g Turbo, 8 Injectors, 26psi
1998 Eclipse GSX 2.3L Stroker, AEM EMS Converted to Speed Density, FP3065 Turbo, 35psi , and so on...
#84602, "RE: Replacing Crank Shaft Bearings...." In response to Reply # 7
Originally posted by xdannyx25 Did you have to put in oversized bearings? Cause I just bought the standard just now. Also should I change the main cap bearings while im at it.
There really needs to be damage to the crank before you ahve to worry abotu oversized bearings. Then the crank would need to be "turned" (material removed)
#84609, "RE: Replacing Crank Shaft Bearings...." In response to Reply # 8
Originally posted by Michael_97RS
Originally posted by xdannyx25 Did you have to put in oversized bearings? Cause I just bought the standard just now. Also should I change the main cap bearings while im at it.
There really needs to be damage to the crank before you ahve to worry abotu oversized bearings. Then the crank would need to be "turned" (material removed) Yes, you want to do the mains as well. Exile Racing Technologies: http://www.exileracing.com Assasin of Joy
So what do you supose, I just plasti gauge it and put in the bearings. If its out can i have it polished and use standard bearings?
Thanks for all the help to everyone, appreciate it.
#84743, "RE: Replacing Crank Shaft Bearings...." In response to Reply # 9
Originally posted by xdannyx25
Originally posted by Michael_97RS
Originally posted by xdannyx25 Did you have to put in oversized bearings? Cause I just bought the standard just now. Also should I change the main cap bearings while im at it.
There really needs to be damage to the crank before you ahve to worry abotu oversized bearings. Then the crank would need to be "turned" (material removed) Yes, you want to do the mains as well. Exile Racing Technologies: http://www.exileracing.com Assasin of Joy
So what do you supose, I just plasti gauge it and put in the bearings. If its out can i have it polished and use standard bearings? Thanks for all the help to everyone, appreciate it.
If it's out of spec, you will have to have the crank turned and use oversize bearings.
Matt 1995 Eclipse GS 2.0L, S16g Turbo, 8 Injectors, 26psi
1998 Eclipse GSX 2.3L Stroker, AEM EMS Converted to Speed Density, FP3065 Turbo, 35psi , and so on...
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