C6 Corvette ZR1 & Z06 General info about GM’s Corvette Supercar, LS9 Corvette Technical Info, Performance Upgrades, Suspension Setup for Street or Track Advertisement

A lot of metal shavings on oil pan drain plug

Old 06-24-2019, 03:59 PM
CF Senior Member
Dan_the_C5_Man's Avatar
Member Since: Dec 2003
Location: Atlanta metro Ga.
Posts: 5,449
Received 362 Likes on 281 Posts

Originally Posted by Jfryjfry View Post
Not sure why there wouldn’t be the same in the filter, but that doesn’t mean your motor is borked. It could be debris from the previous incident and, with luck, it is being filtered out and settling in the pan.

Although it might be chewing up the pump.

If it isn’t leftover from before, I’ve seen the sides of the connecting rods get chewed up and maybe that’s what’s happening here.
Connecting rods are Ti, and Ti is not ferrous (won't stick to the mag plugs).
Dan_the_C5_Man is offline  
Old 06-25-2019, 01:18 AM
CF Senior Member
Member Since: Oct 2017
Posts: 555
Received 43 Likes on 40 Posts

Ahhh of course!
Jfryjfry is offline  
Old 07-09-2019, 12:33 PM
CF Senior Member
Member Since: Aug 2018
Location: Germany
Posts: 108
Received 4 Likes on 4 Posts

any update ?
hy_bmw_freak is offline  
Old 07-10-2019, 12:04 PM
CF Senior Member
Member Since: Jun 2017
Posts: 123
Received 15 Likes on 10 Posts

.0020-.0030 is too large to run on the mains. .0015-.0020 on the mains is good with 5w-30 and .0018-.0022 on the rods. Remember with the aluminum block, the clearances are going to open up once up to temp more than an iron block will.

There are a lot of places for metal shaving to hide in a LS. Especially in the passageway where the oil restrictor barbel lives.

Last edited by spartan8270; 07-10-2019 at 12:05 PM.
spartan8270 is offline  
Old 07-10-2019, 04:56 PM
CF Senior Member
Support Corvetteforum!
meanjoe's Avatar
Member Since: Apr 2012
Location: Houston TX
Posts: 3,542
Received 137 Likes on 104 Posts

I'd also like to know what happened. It would also be nice to know if that pile of shavings in the first picture is dime size or fist size?

Last edited by meanjoe; 07-10-2019 at 04:59 PM.
meanjoe is offline  
Old 07-10-2019, 05:06 PM
CF Member
Thread Starter
SilverBulletC6Z's Avatar
Member Since: Apr 2017
Posts: 65
Received 3 Likes on 3 Posts

So I decided to just pull the motor and figure out where those shavings are coming from, would be a shame to destroy new cylinder heads trying to ignore an obvious problem. Motor is halfway out should be fully torn down by end of this week.

The shavings were a bit smaller than the size of a dime, probably closer to a 1/4” - 3/8” ball.

I think the shavings may be pushrods rubbing on the cylinder heads, not sure yet could be anything at this point.

Last edited by SilverBulletC6Z; 07-10-2019 at 05:06 PM.
SilverBulletC6Z is offline  
Old 07-11-2019, 02:08 AM
CF Senior Member
Support Corvetteforum!
73DBG's Avatar
Member Since: Apr 2018
Posts: 1,607
Received 191 Likes on 166 Posts

One thing I learned during my rebuild was probably the most important thing to do is measure pushrod length....several times with an actual tool. My engine builder was very very meticulous about this, we sent two sets back and almost ended up sending the third back and we were gonna have cam motion make us a custom length, but the third set end up measuring almost perfect only way to get any more ideal would have been a complete custom set measured individually.

Main bearing clearance is another big deal, LS7 is tight and can be even tighter when you open up the bottom end and use coated bearings another reason why I use 5W30 dudes make big mistakes chasing higher hot idle oil psi so they throw thick oil at it and that doesn’t end well.

Keep us posted man, definitely sub’d hate this happened again man, the stress level of **** like this is not fun.
73DBG is offline  

Thread Tools
Search this Thread
Quick Reply: A lot of metal shavings on oil pan drain plug

Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: