replacing rod bearings in a 04 gsxr 1000 - TwoWheelForum: Motorcycle and Sportbike forums
 
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post #1 of 5 (permalink) Old 08-04-2007, 09:24 PM Thread Starter
 
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replacing rod bearings in a 04 gsxr 1000

i want to know if anyone knows what the best way to put rod bearing in a 04 gsxr 1000. i pulled the oil pan and thought i might get lucky and find a short cut but it did not work out for me, so i am guessing that i am going to have to split the caseing to put one rod bearing in and replace a rod if it is stretched. i have heard that when putting the caseing back together that you have to make sure the transmission lines up when you put it back together.there is another cover that the oil pan bolts to. if i pull that off woul i be able to change the rod bearing are do i need to pull the caseing. i am pretty sure it did not scare the crank it only makes the noise at higher rpm. i need some help here
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post #2 of 5 (permalink) Old 08-04-2007, 09:33 PM
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Quote:
Originally Posted by sandman the gsxr man View Post
i want to know if anyone knows what the best way to put rod bearing in a 04 gsxr 1000. i pulled the oil pan and thought i might get lucky and find a short cut but it did not work out for me, so i am guessing that i am going to have to split the caseing to put one rod bearing in and replace a rod if it is stretched. i have heard that when putting the caseing back together that you have to make sure the transmission lines up when you put it back together.there is another cover that the oil pan bolts to. if i pull that off woul i be able to change the rod bearing are do i need to pull the caseing. i am pretty sure it did not scare the crank it only makes the noise at higher rpm. i need some help here
if your are having con rod issues it is best to tear the engine down completely. Unlike a car when it locks a engine it just stops. A bike on the other had can become a projectile (along with the rider or high side) if goin fast enough when a engine ceases.
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post #3 of 5 (permalink) Old 08-08-2007, 06:15 AM
 
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Quote:
Originally Posted by sandman the gsxr man View Post
i am pretty sure it did not scare the crank it only makes the noise at higher rpm. i need some help here
Pull the crank and have the crank checked (true and runout). Gixxers are not known for bearing issues...what is the cause: ran out of oil, lotsa wheelies, lotsa overrev, oil pump failure, or just high milage?

If you have bearing noise (aka rod knock) bearing material has likely been deposited on the crank journal(s). Even if the crank has not been damaged, this material will need to be removed by a machinist, as the reduced clearances will cause the new bearing to gall and sieze.

Do it right once, or end up doing it a second time, with the possibility for even greater engine damage..............

JMHO
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post #4 of 5 (permalink) Old 08-08-2007, 10:48 AM
 
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you will have to split the case and i would change ALL the bearings since it i was down that far. Yes you will have to make sure the transmission lines up or you will have to tear it all back apart.
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post #5 of 5 (permalink) Old 08-08-2007, 02:23 PM
 
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might as well do an engine rebuild, blue print and balance. since it's already apart, do an overbore and higher compression. go beyond superbike spec.

or go buy a used motor and save that time and money.

are you really sure the bearing is shot?

-a|ex
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