ZR-1 Net Registry Forums  

Go Back   ZR-1 Net Registry Forums > C4 ZR-1 > C4 ZR-1 Technical Postings

Reply
 
Thread Tools Display Modes
Old 06-21-2024   #1
Tim555
 
Join Date: Mar 2024
Location: Northeast
Posts: 44
Default Replacing main bearings

I recently discovered a lot of gold glitter after an oil change. The car did briefly make some lifter and/or knocking noise, but that cleared up. There seemed to be sludge in the oil so I changed it. Oil was changed in February by the shop who sold me the car. They used the fram filter, not me. It had maybe 1500 miles on it. Cat has 94k. This what I found. Can the mains be changed from the bottom of the car if the crank journals aren?t damaged?
Attached Images
File Type: jpg IMG_0311.jpg (108.6 KB, 33 views)
File Type: jpg IMG_0316.jpg (108.9 KB, 44 views)

Last edited by Tim555; 06-21-2024 at 02:33 PM.
Tim555 is offline   Reply With Quote
Old 06-22-2024   #2
AndrewL
 
Join Date: Dec 2020
Location: Sydney, Australia
Posts: 86
Default Re: Replacing main bearings

If my car had metal particulate that had circulated through the motor, I'd be doing a full tear down otherwise any fix may be very temporary before any metal particulate left in the motor causes damage again after you change the bearings.
AndrewL is offline   Reply With Quote
Old 06-23-2024   #3
Jagdpanzer
 
Jagdpanzer's Avatar
 
Join Date: Apr 2007
Location: Northern VA
Posts: 2,661
Default Re: Replacing main bearings

Suggest cutting the oil filter and see what's in it.


Sent from my iPhone using ZR-1 Net Registry
__________________
Phil Wasinger
1994 Torch Red ZR-1
WAZOO Member
George Braml Intake
Jagdpanzer is offline   Reply With Quote
Old 06-27-2024   #4
Thomas ZR-1
 
Thomas ZR-1's Avatar
 
Join Date: Oct 2012
Location: Germany
Posts: 230
Default Re: Replacing main bearings

You can`t change the main bearings if the engine is installed into the car. Unfortunately the engine has to be disassembled on a stand until the last screw. The crankshaft must taken out to replace the main bearings...no other way.
__________________
Best thing in life is a ZR-1 ride
Thomas ZR-1 is offline   Reply With Quote
Old 07-01-2024   #5
viper107
 
viper107's Avatar
 
Join Date: Dec 2019
Location: st louis mo
Posts: 749
Default Re: Replacing main bearings

if you dont polish the crank,it will take out the bearings in 10 miles
__________________
95 admiral blue z(sold)/ / 93 ruby z(sold) 91 steel blue z/95 aqua z haibeck 510, 91 callaway 415 areobody #5
viper107 is offline   Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 01:19 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright ZR-1 Net Registry 2020