Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Go Back   Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum > General > Tech Talk

Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars


Reply
 
Thread Tools Display Modes
Old 03-18-2019, 08:06 PM   #1
alohallaround
Leaky Injector
 
Join Date: Aug 2011
Location: NorCal
Posts: 77
Trader Rating: (6)
alohallaround is an unknown quantity at this point
Feedback Score: 6 reviews
KA Swapping out bad crankshaft Ka24de

Hey guys, quick noob question. I picked up an s14 Zenki that hasnít ran in 2 years, got the car to start and it had a bad rod knock. I pull off the oil pan and the rod bearings are done on cylinders 1-3 so much that the crank has some damage. The rods look fine so my question is can I just pick up a good crank and throw it in with alll new bearings? Any help is appreciated
alohallaround is offline   Reply With Quote
Sponsored Links
Old 03-18-2019, 09:11 PM   #2
S14DB
AFC #1
 
S14DB's Avatar
 
Join Date: Oct 2003
Location: 昨晩あなたのお母さんの家
Posts: 20,182
Trader Rating: (3)
S14DB is close to perfectionS14DB is close to perfectionS14DB is close to perfectionS14DB is close to perfectionS14DB is close to perfectionS14DB is close to perfectionS14DB is close to perfectionS14DB is close to perfectionS14DB is close to perfectionS14DB is close to perfectionS14DB is close to perfection
Feedback Score: 3 reviews
You are going to need to micrometer the bore of the mains and rods to make sure they arenít out of round. The the replacement crank to determine bearings size.
__________________
Comments should be taken as Opinions not as Statements of Fact
S14DB is offline   Reply With Quote
Old 03-18-2019, 10:36 PM   #3
alohallaround
Leaky Injector
 
Join Date: Aug 2011
Location: NorCal
Posts: 77
Trader Rating: (6)
alohallaround is an unknown quantity at this point
Feedback Score: 6 reviews
Quote:
Originally Posted by S14DB View Post
You are going to need to micrometer the bore of the mains and rods to make sure they arenít out of round. The the replacement crank to determine bearings size.
Okay, as far as the block goes, machining isnít necessary unless the bores are lopsided right? Just make sure I have the correct bearings and I should be good?
alohallaround is offline   Reply With Quote
Old 03-19-2019, 07:33 AM   #4
jedi03
Zilvia FREAK!
 
Join Date: Jul 2008
Location: albuquerque
Posts: 1,502
Trader Rating: (8)
jedi03 is on a distinguished road
Feedback Score: 8 reviews
yup! to re-iterate MEASURE so you don't have it happen again...should be pretty easy as you will have the crank markings and the block markings to match what you need pretty easily!
jedi03 is offline   Reply With Quote
Old 03-19-2019, 08:20 AM   #5
alohallaround
Leaky Injector
 
Join Date: Aug 2011
Location: NorCal
Posts: 77
Trader Rating: (6)
alohallaround is an unknown quantity at this point
Feedback Score: 6 reviews
Quote:
Originally Posted by jedi03 View Post
yup! to re-iterate MEASURE so you don't have it happen again...should be pretty easy as you will have the crank markings and the block markings to match what you need pretty easily!
Gotcha! just wanted to make sure I had the right idea. Thanks guys!
alohallaround is offline   Reply With Quote
Old 03-19-2019, 08:30 AM   #6
brndck
Premium Member
 
brndck's Avatar
 
Join Date: Jun 2003
Location: torrance, ca
Age: 37
Posts: 11,710
Trader Rating: (126)
brndck is close to perfectionbrndck is close to perfectionbrndck is close to perfectionbrndck is close to perfectionbrndck is close to perfectionbrndck is close to perfectionbrndck is close to perfectionbrndck is close to perfectionbrndck is close to perfectionbrndck is close to perfectionbrndck is close to perfection
Feedback Score: 126 reviews
Send a message via AIM to brndck
yeahhhhhhhhhh if you had that much metal shaving in the pan theres a good chance it got sucked up into the oil pickup and there are shavings elsewhere in the engine. I wouldn't trust it unless I had replaced the oil pump and cleaned all the oil passages thoroughly.

i'm a big fan of ultrasonic cleaning, but its super convenient that they're only like 3 miles from my house.
__________________

http://outslidersandsmokeproduce.blogspot.com/
Quote:
Originally Posted by Mannykiller View Post
it'll fit JANK.. and no one likes Jank except Broke ass zilvians.
brndck is offline   Reply With Quote
Old 03-19-2019, 09:16 PM   #7
alohallaround
Leaky Injector
 
Join Date: Aug 2011
Location: NorCal
Posts: 77
Trader Rating: (6)
alohallaround is an unknown quantity at this point
Feedback Score: 6 reviews
Quote:
Originally Posted by brndck View Post
yeahhhhhhhhhh if you had that much metal shaving in the pan theres a good chance it got sucked up into the oil pickup and there are shavings elsewhere in the engine. I wouldn't trust it unless I had replaced the oil pump and cleaned all the oil passages thoroughly.

i'm a big fan of ultrasonic cleaning, but its super convenient that they're only like 3 miles from my house.
Good point, well I pulled the engine out, might just change the oil pump since itís out
alohallaround is offline   Reply With Quote
Reply

Bookmarks

Tags
crankshaft, ka24de


Thread Tools
Display Modes

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 -6. The time now is 01:10 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
vB.Sponsors
Copyright © 1998 - 2019, Zilvia.netô