View Full Version : Rod Knock?
Kevin 1G Drummer
01-11-2009, 12:29 PM
I'm using ACL race bearings in my car. They weren't too expensive, and they now have about 25k of not so easy driving on them. You will wanna use assembly lube on them when you put them in, and make sure there is no scoring on your crank. As for a break in period, you'll wanna go pretty easy on the throttle and rpms for about 500 miles, then change the oil. Then change the oil again after 1000 miles, then after that you should be good to give it hell.
Goat Blower
01-11-2009, 12:38 PM
Bah, 100 miles is about all I do for break-in anymore. That 1000 mile stuff pertains to old Chevy motors.
I am with Steve, I did about 100 miles too, but I did do 3/4 throttle at low boost after 50 miles to make sure the rings were seated. I was only fairly nice to it for the first 20 miles. I was also very picky on my clearances during assembly.
tpunx99GSX
01-12-2009, 12:13 AM
Yup its verified. Rod bearings were the problem.
Crank and Rods look fine. The bearings still had a little copper (looking) on the crank side.
Im ordering new ones tomorrow.
On a funnier note, I found a 10mm socket in my oil pan. Not sure how it got in there.
mike55112
01-12-2009, 01:40 AM
Yup its verified. Rod bearings were the problem.
Crank and Rods look fine. The bearings still had a little copper (looking) on the crank side.
Im ordering new ones tomorrow.
On a funnier note, I found a 10mm socket in my oil pan. Not sure how it got in there.
Was there alot of shavings? If so you might want to clean everything out to prevent any further damage.
asshanson
01-12-2009, 10:15 AM
On a funnier note, I found a 10mm socket in my oil pan. Not sure how it got in there.
WTF? Have you ever take this motor apart before? Or was it the previous owner who did that?
tpunx99GSX
01-12-2009, 10:35 AM
WTF? Have you ever take this motor apart before? Or was it the previous owner who did that?
Im thinking it was the previous owner. I havent taken the oil pan off before in this car. :) it was just chilling on the bottom of the pan. Its funny though because it scared the hell out of me when i was hearing it drag on the bottom of the pan i was thinking it was something much worse. LOL
There was some shavings on the bottom of the pan, ill make sure everything is cleaned up. and do an oil change.
On the crank, cyl 4 there was a very slight scoring on the crank. I dont think it justifies replacing or returning the crank. The other 3 looked just fine. On cylinder one the top part of the bearing was broke in half. YIKES. Good thing i didnt wait any longer. Surprizingly cyl 1 does not have any scoring whatsoever.
Anyone know the torque specs for the rod bolts? I couldnt find it in my manual.
Also i definatly suggest to everyone, if you ever have your oil pan off, replace the rod bearings. its very easy to do and could fix a disaster.
asshanson
01-12-2009, 10:41 AM
Free socket for you!
Sounds like you got pretty lucky. Are you going to pull the head and check everything out or just replace the bearings?
tpunx99GSX
01-12-2009, 11:25 AM
Free socket for you!
Sounds like you got pretty lucky. Are you going to pull the head and check everything out or just replace the bearings?
Im just going to replace the bearings, i dont think i need to check the head.
mike55112
01-12-2009, 12:18 PM
You really should take everthing apart and get it all cleaned, some shavings could have went through the pick up and now are in the rest of your engine/turbo/oil cooler.
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