Main Crankshaft Bearings...?
05-10-2006, 03:08 AM
#11
5th Gear Member
Join Date: Feb 2006
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RE: Main Crankshaft Bearings...?
well if you have experience taking apart engines its pretty easy. you'll have to obviously put the engine on a stand and flip it upside down. take the pan off take the pickup out. take the main caps off and throw out the bearings. remember to mark which cap goes to where, its essential that you dont get them out of order. you'll have to takw the harmonic ballencer off too, before you take off the main caps. pull the crank out. pull the rest of the bearings out. clean everything up real good. I just use brake cleaner and a rag. you'll need some ..the blue stuff. i cant remember what its called. but you put your new bearings in the block put a little line of the blue stuff on each bearing, set the crank down on the bearings. put the other bearings in the caps and torque them down. i like to put the blue stuff on the bearings in the cap too. let it sit for about 2 minutes and take it back apart. take the smashed blue stuff and compare it to the measurement on the packaging. i cant remember what that stuff is called but its right on the tip of my tongue. its the stuff you use to measure the clearence to the bearings. if everything checks out good put some motor oil on each bearing, set the crank down, put some oil on the caps and put them on and torque em down. then put the rest back together. its not too bad, but i've done it a few times before. oh yeah, you'll have to either take the pistons out or figure a out a way to keep them set in there. since you're replacing main bearings and gonna have the rod caps off you might want to replace the rod bearings too. that'll just save you some time and give you a piece of mind about your bottom end
05-10-2006, 03:11 AM
#12
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Join Date: Jun 2004
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Posts: 613
RE: Main Crankshaft Bearings...?
ORIGINAL: FiveLiterRiceEater
well if you have experience taking apart engines its pretty easy. you'll have to obviously put the engine on a stand and flip it upside down. take the pan off take the pickup out. take the main caps off and throw out the bearings. remember to mark which cap goes to where, its essential that you dont get them out of order. you'll have to takw the harmonic ballencer off too, before you take off the main caps. pull the crank out. pull the rest of the bearings out. clean everything up real good. I just use brake cleaner and a rag. you'll need some ..the blue stuff. i cant remember what its called. but you put your new bearings in the block put a little line of the blue stuff on each bearing, set the crank down on the bearings. put the other bearings in the caps and torque them down. i like to put the blue stuff on the bearings in the cap too. let it sit for about 2 minutes and take it back apart. take the smashed blue stuff and compare it to the measurement on the packaging. i cant remember what that stuff is called but its right on the tip of my tongue. its the stuff you use to measure the clearence to the bearings. if everything checks out good put some motor oil on each bearing, set the crank down, put some oil on the caps and put them on and torque em down. then put the rest back together. its not too bad, but i've done it a few times before.
well if you have experience taking apart engines its pretty easy. you'll have to obviously put the engine on a stand and flip it upside down. take the pan off take the pickup out. take the main caps off and throw out the bearings. remember to mark which cap goes to where, its essential that you dont get them out of order. you'll have to takw the harmonic ballencer off too, before you take off the main caps. pull the crank out. pull the rest of the bearings out. clean everything up real good. I just use brake cleaner and a rag. you'll need some ..the blue stuff. i cant remember what its called. but you put your new bearings in the block put a little line of the blue stuff on each bearing, set the crank down on the bearings. put the other bearings in the caps and torque them down. i like to put the blue stuff on the bearings in the cap too. let it sit for about 2 minutes and take it back apart. take the smashed blue stuff and compare it to the measurement on the packaging. i cant remember what that stuff is called but its right on the tip of my tongue. its the stuff you use to measure the clearence to the bearings. if everything checks out good put some motor oil on each bearing, set the crank down, put some oil on the caps and put them on and torque em down. then put the rest back together. its not too bad, but i've done it a few times before.
its been along day i guess
05-10-2006, 03:14 AM
#15
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Join Date: Feb 2006
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RE: Main Crankshaft Bearings...?
thats true too. he'll probably have to get some OD bearings and have his crank turned. although once, i put bearings in my 86 regal and didnt have to get the crank turned. i dunno how that happened though
05-10-2006, 03:17 AM
#16
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Join Date: May 2006
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RE: Main Crankshaft Bearings...?
ORIGINAL: FiveLiterRiceEater
thats true too. he'll probably have to get some OD bearings and have his crank turned. although once, i put bearings in my 86 regal and didnt have to get the crank turned. i dunno how that happened though
thats true too. he'll probably have to get some OD bearings and have his crank turned. although once, i put bearings in my 86 regal and didnt have to get the crank turned. i dunno how that happened though
05-10-2006, 03:20 AM
#17
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RE: Main Crankshaft Bearings...?
yeah. i think i'd be doing a whole rebuild. but if it doesnt need it id just get the crank turned, get main bearings, and rod bearings. if the main bearings are going then i think its safe to say the rod bearings are soon to follow.
05-10-2006, 01:54 PM
#19
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RE: Main Crankshaft Bearings...?
The old man that owns it has never drove it hard so hopefully crank isn't junk. I just need the 302 in it to last me for about 2-3 weeks while I get my 408 stroker all built and a new tranny to drop in it.
05-10-2006, 02:06 PM
#20
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RE: Main Crankshaft Bearings...?
ORIGINAL: 347Stroker Cougar
The old man that owns it has never drove it hard so hopefully crank isn't junk. I just need the 302 in it to last me for about 2-3 weeks while I get my 408 stroker all built and a new tranny to drop in it.
The old man that owns it has never drove it hard so hopefully crank isn't junk. I just need the 302 in it to last me for about 2-3 weeks while I get my 408 stroker all built and a new tranny to drop in it.