Results 1 to 8 of 8

Thread: How many miles can a L24 engine last.

  1. #1
    Registered User patmsb's Avatar
    Member ID
    CZCC-2420
    Join Date
    Jul 2002
    Location
    Santa Barbara, CA.
    Posts
    16

    Default How many miles can a L24 engine last.

    I was wondering how many miles can a 1970 240z engine can last. Who know this answer? I'm thinking it can last about 150,000 - 200,000 miles not being abused. Is this about right? Thank you!

  2. #2
    Registered User byunique's Avatar
    Member ID
    CZCC-1108
    Join Date
    Mar 2001
    Location
    San Francisco, California, United States
    Posts
    158

    Default

    My buddies 70 was on about 225K w/o the bottom end being touched. The only reason he rebuilt it was to get more power. It wasn't burning oil, and it ran pretty good.
    Brandon Yu
    '73 240, stroked Rebello 3.0, ported N42, 44 Mikunis, Adj. Tokicos, 5 speed, Trust 10.8lb Fly., Centerforce Dual Friction, 4.44 Nissan Comp LSD, MSA Header, Autopower rollbar, 16 " Riken Mesh Wheels.

    sound of my Z

  3. #3
    Registered User
    Member ID
    CZCC-1361
    Join Date
    Nov 2001
    Location
    oklahoma city, ok
    Age
    45
    Posts
    12

    Default

    My '72 had a little over 500,000 miles on it before a cracked ring finally blew a chunk out of no. 3 piston. I drove it the rest of the way home, too. It still had good power, didn't use oil. Leaked a little, but didn't burn any. The only thing we did to this engine, other than tune-ups, was replaced the valve guide seals. That's it. Take good care of it, it will take care of you.

  4. #4
    CentralValleyZ.org SoCalZ's Avatar
    Member ID
    CZCC-908
    Join Date
    Aug 2000
    Location
    Lemoore, Ca
    Posts
    50

    Thumbs up

    Its like a Timex, takes a licking at 189,000 and still tickin. No rebuild on my 73' yet!!

  5. #5
    Registered User patmsb's Avatar
    Member ID
    CZCC-2420
    Join Date
    Jul 2002
    Location
    Santa Barbara, CA.
    Posts
    16

    Default

    Well, it looks like the L24 engine will pretty much last quite awhile if tuned on a regular bassis. Sounds good to me!

  6. #6
    Registered User guy_geo's Avatar
    Member ID
    CZCC-1614
    Join Date
    Jan 2002
    Location
    Montreal Canada
    Age
    55
    Posts
    423

    Unhappy

    So how come mine needs to be fixed out???

    96 000miles, but I do know the ZED I bought was used for some lapping and autocross...


    Oil rings (espeacially #3), and vavle seals..

    Normal wear, well, I guess so on a 30 years old car.

    C:\Ancien Disque Dur\Albums photos\Autos Divers\240Z Guy 2008\10.jpg240Z..

    FAST & CHEAP = NOT GOOD
    CHEAP & GOOD = NOT FAST
    FAST & GOOD = NOT CHEAP

  7. #7
    Registered User Zed's Avatar
    Member ID
    CZCC-1272
    Join Date
    Oct 2001
    Location
    Under My Z
    Posts
    114

    Default

    My last 240 had at least 280,000 miles on it.

    I rebuilt the engine just for the hell of it, not because I thought it needed it.
    The only excessively worn part I found in the engine was the timing chain tensioner shoe. (down to the metal)

    The main bearings / journals mic'd to with-in blue-print specs!

  8. #8
    beandip beandip's Avatar
    Member ID
    CZCC-1887
    Join Date
    Mar 2002
    Location
    Beaverton, Oregon
    Age
    81
    Posts
    4,038

    Default all depends on how it is cared for

    Alot depends on how it is cared for and treated . I change the oil at 3k and filter . I dont try to see if it will run to redline, I run hard on the twistys but keep the RPMs at a realistic rate rarely over four grand . I have over 200,000 miles and the engine burns no oil and has a compression of 145 all across th e board. It is mostly stock execpt for Round tops and a '79zx ignition. I vary much like to drive this car and can see no point is GERNADEING the engine just to satisfy my eago.
    I'd rather die while I am living than live while I am dieing. CZC 1887 IZCC 12602 Member of NorthWest Z Car Club

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •