Page 1 of 2 12 LastLast
Results 1 to 10 of 15

Thread: 3A92 Images (pics of disassembled Mirage 1.2L engine)

  1. #1
    Moderator Eggman's Avatar
    Join Date
    Sep 2015
    Location
    Cleveland, Ohio
    Country
    United States
    Posts
    10,155
    Thanks
    4,039
    Thanked 2,788 Times in 2,107 Posts

    3A92 Images (pics of disassembled Mirage 1.2L engine)

    Special thanks to forum member wilbur for providing these images. Please post yours to this thread.

    Wilbur, could you comment on these photos?




















































        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage ES 1.2 manual: 49.6 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.5 mpg (Imp)


  2. The Following 13 Users Say Thank You to Eggman For This Useful Post:

    + Show/Hide list of the thanked

    Cobrajet (12-22-2016),Daox (12-21-2016),foama (11-14-2021),Fummins (05-12-2020),Marklovski (12-23-2016),MetroMPG (12-23-2016),Mitsuko (12-21-2016),mitsumi (12-23-2016),Mitz (12-23-2016),ThunderG (12-21-2016),Top_Fuel (12-22-2016),wellswebdesign (12-21-2016),wilbur (12-24-2016)

  3. #2
    Senior Member MightyMirageMpg's Avatar
    Join Date
    Apr 2016
    Location
    wi
    Country
    United States
    Posts
    760
    Thanks
    457
    Thanked 318 Times in 203 Posts
    Anyone mind elaborating on what the wheel is attached to to crank inside, on the accessory side with the teeth on it? Looks like a star wheel or crank position sensor pickup wheel or?

  4. #3
    Senior Member Top_Fuel's Avatar
    Join Date
    Feb 2016
    Location
    Ohio
    Country
    United States
    Posts
    3,699
    Thanks
    2,582
    Thanked 2,537 Times in 1,471 Posts
    Quote Originally Posted by MightyMirageMpg View Post
    ...crank position sensor pickup wheel...
    That's what I assumed it was.


    Is this the guy who blew a head gasket?
    Remind us how many miles this engine had on it and the type of maintenance and driving this car has done.

    Great pics!

    Interested to know the general conditions observed while tearing the engine down...

    - timing chain stretched/worn?
    - rod and main bearing condition
    - cylinder walls

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage ES 1.2 manual: 52.2 mpg (US) ... 22.2 km/L ... 4.5 L/100 km ... 62.6 mpg (Imp)


  5. The Following User Says Thank You to Top_Fuel For This Useful Post:

    MightyMirageMpg (12-24-2016)

  6. #4
    Moderator Eggman's Avatar
    Join Date
    Sep 2015
    Location
    Cleveland, Ohio
    Country
    United States
    Posts
    10,155
    Thanks
    4,039
    Thanked 2,788 Times in 2,107 Posts
    This teardown was discussed here resulting from a bad head gasket. Rkt Ship had one too.

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage ES 1.2 manual: 49.6 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.5 mpg (Imp)


  7. The Following 3 Users Say Thank You to Eggman For This Useful Post:

    Daox (12-22-2016),MetroMPG (12-23-2016),Top_Fuel (12-22-2016)

  8. #5
    Member ThunderG's Avatar
    Join Date
    Dec 2014
    Location
    Indianapolis
    Country
    United States
    Posts
    43
    Thanks
    249
    Thanked 10 Times in 8 Posts
    I've heard about problems with carbon build-up on the valve stems. How did they look on this engine?

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage DE 1.2 manual: 48.2 mpg (US) ... 20.5 km/L ... 4.9 L/100 km ... 57.9 mpg (Imp)


  9. #6
    Member
    Join Date
    Mar 2016
    Location
    pennsylvania
    Country
    United States
    Posts
    73
    Thanks
    37
    Thanked 45 Times in 26 Posts
    This vehicle was towed in with a bad head gasket. I cant remember the mileage, I'm assuming it failed from customer abuse, front end damage and incorrect coolant made me think they might have damaged the radiator leaked out fluid and over heated/ damaged the head gasket. The head and block were both warped beyond correction. Surprisingly there was no damage to the bearings, but the cylinder walls were scuffed badly and there was obvious damage to the pistons.

    Yes the toothed wheel is the crank sensor, well not the sensor but the sensor reads off of that wheel.

    The valve stems didnt have any build up.

  10. The Following 3 Users Say Thank You to wilbur For This Useful Post:

    davidricardo86 (11-15-2021),Eggman (12-23-2016),MetroMPG (12-29-2016)

  11. #7
    Moderator Eggman's Avatar
    Join Date
    Sep 2015
    Location
    Cleveland, Ohio
    Country
    United States
    Posts
    10,155
    Thanks
    4,039
    Thanked 2,788 Times in 2,107 Posts
    Was the car repaired and put back out on the road?

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage ES 1.2 manual: 49.6 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.5 mpg (Imp)


  12. #8
    Member
    Join Date
    Mar 2016
    Location
    pennsylvania
    Country
    United States
    Posts
    73
    Thanks
    37
    Thanked 45 Times in 26 Posts
    Yes it did end up getting a new engine and was put back out on the road.

  13. The Following User Says Thank You to wilbur For This Useful Post:

    Eggman (12-24-2016)

  14. #9
    Senior Member NotoriousJT's Avatar
    Join Date
    Dec 2015
    Location
    Concord, OH
    Country
    United States
    Posts
    118
    Thanks
    8
    Thanked 17 Times in 11 Posts
    Quote Originally Posted by wilbur View Post
    Yes it did end up getting a new engine and was put back out on the road.
    Just curious, was the warranty used to replace the engine?
    Cars:
    15' Mitsubishi Mirage DE CVT
    17' Toyota Corolla LE


    Instagram: Slow_As_F*ck <- Change the "*" to a "U" and you'll find me!

  15. #10
    Member
    Join Date
    Feb 2014
    Location
    Malaysia
    Country
    Taiwan
    Posts
    48
    Thanks
    1
    Thanked 5 Times in 5 Posts
    Just curious also, what is the Rod length of the 3A92? and are we able to use any oversize piston?



Posting Permissions

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