ok well i know many people tell me to put in new bearings according to theright ones i need. I know the whole procedure. I rebuilt my ls motor a long time ago and didnt change the bearing and it ran great afterwards.. I inspected all my bearings.. and checked the clearances with plastigauge and all teh bearings are in good shape .. the wear is within spec.. motor has about 60,000 miles on it no damage or anything so i was wondering why would i need to put brand new bearings in of proper spec? can i reuse my bearings? cause i have friends that are like you need new bearings or else you are going to have to take your motor out and redo it again. ANd i would just like some reasoning behind it ... and some personal experiences.. i havent built too many motors.. and i know many people onhondatech have.. so your experiences mean a lot to me.. i am not a nooob.. but i just would like some more conrete facts instead of just internet **** talkn.. thanks
~Rob

 

anyone? do i need new bearings? or can i reuse mine if they are in good shape.

 

don't be cheap
bearings aren't expensive, it's the samething as headgasket, you wouldn't want to reuse a headgasket now would you?

 

Same reason as "why do you wipe your *** when you take a ****"

seriously though, bearings are components that see a lot of wear and tear. Given that they are internel and part of the bottom end assembly, they cannot be changed easily. Therefore changing them when rebuilding is smart and ensures you have the proper clearances.

 

well does anyone have any stories... when they built a motor and had to take it back apart cause the didnt put new bearings in? i mean .. it only says to replace the bearings if the clearance isnt within spec.. so ... where do you guys buy your bearings from anyway? acl?

 

I would absolutely replace the bearings. The bearings "bear" the load of the motor if u will. Why have a fresh build with 60,000 mile bearings?? Doesnt make ANY sense to me.

You wont find too many people saying that they had to tear their motor back apart cuz they reused their bearings. This is because anyone taking the time, money, and effort to rebuild an engine will use new bearings. (unless the "used" bearings are low low mileage.

I would def use OEM honda bearings, but many people are having luck with the ACL so i cant knock em.

 

alright well i guess i am gonna try and get some new bearings.. so i can sleep at night..

 

you can reuse the bearings but like everybody else said why? it makes no sense. Also when you torque the bearings in place they crush a bit causing them to stay put in the bore. When you remove them they become losser and whose to say they will crush properly again and next thing you know you have a spun bearing

 

well, if you are doing a mild rebuild to freshen up the compression, on an otherwise young healthy motor, then leave the bearings (if they're in spec) til the next rebuild.

but if you are going to go through the trouble of taking them all apart and inspecting them, may as well replace them if they're cheap enough. And have the bearings in the upper range of tolerance specs.

I don't know why you're rebuilding a 60kmile engine, unless you race it alot.

d

 

I'm rebuildin just to put some jdm itr pistons in it.. nothing crazy... all bearings are within specs.. i might just reuse em... i mean they were working fine before..

 

well, you factor in the costs and your longevity goals. But its not every day you have the engine apart like that.

You may want consider that you might possibly screw up the "new" bearing measurements and installation, not being a professional and all. There may be some merit to leaving well enough alone.

haha, i really don't think reusing perfectly good bearings is the same as reusing a head gasket haha.

 

ya i was thinking the same exact thing..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Red D Dragon &raquo;</TD></TR><TR><TD CLASS="quote">well does anyone have any stories... when they built a motor and had to take it back apart cause the didnt put new bearings in? i mean .. it only says to replace the bearings if the clearance isnt within spec.. so ... where do you guys buy your bearings from anyway? acl?</TD></TR></TABLE>

a friend of mine had a stroked boosted b16, anyways, he blew a headgasket replaced, and a couple of his friends suggested he changed the bearings, well he didnt, and 3 days later he spun a bearing. dont know why he didnt change them.

 

yeah dood..i would get new bearings for sure...make sure you get the correct ones and install them correctly or find an expert on the subject to help you..bearings are very important..good luck bro

 

First of all, which bearings are we talking about?........Rods or Mains.......Look at it like this........Your main bearings just hold the crank as it spins in one direction distributing stress fairly evenly across the face of all the bearings. Your rod bearings on the other hand don't share stress as equally since different parts of the bearings are pushed on as the rod pivots inside the cylinder from the piston moving up and down, so at different points during strokes, parts of the rod bearing sees large amounts of force while other parts see much less.......SO if your mains are within specs, yeah, you'll probably be fine reusing them as long as you reinstall them properly, but I would definitely consider changing the rod bearings since the see far more stress than the mains, especially since you are installing a more aggressive piston.......Just my $.02 ...........................

 

If you are talking rod bearings....if you decide to keep them when you put it all together swap the top bearings for the bottoms. The top bearings in the rods take a higher beating then the bottoms.

 

Why don't you just reuse the rings while you're at it?

And whats wrong with reusing a headgasket?

 

first of all .. reusing rings isnt the same.. and neither is a gasket.. does everyone replace their oil drain bolts after every time you change the oil.. nooo funny thing is it says your supposed to.. and with the bearings it doesnt say to replace unless they have too much wear on em or unless there are clearance issues..

 

No one says to replace the oil drain bolt, you replace the crush washer on it...

New rings + new bearings = new engine, basically. You seem to have your mind made up, though.

 

well i am probablly going to put new bearings in.. but .. actually i have a manual that says to replace the bolt and washer after you do an oil change but ya i know.. i am going to put new bearings in too.. dont worry.. its just i wanna see what people have to say about it..