Just joined excited about getting helpful feedback
Close
Login to Your Account
Results 1 to 15 of 15
  1. #1
    Join Date
    Sep 2019
    Country
    UNITED STATES
    State/Province
    California
    Posts
    1
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    0

    Default Just joined excited about getting helpful feedback

    2005 Hyundai Sonata (4 cylinder)

    1. Purchased Sonata for $600.00 with broken timing belt, I had forgotten about interference engine technology.
    2. Replaced timing belt, Sonata runs rough.
    3. Perform compression test: cylinder's 1-2 no compression, cylinder's 3-4 good compression.
    4. Removed cylinder head; purchased 4 exhaust valves and 4 intake valves to replace bent valves, cleaned cylinder head and surfaces.
    5. Perform valve lapping and install new valves.
    6. Install cylinder head
    7. Engine cranks over but doesn't start
    8. Go out another day to redo compression test 2 cylinder's with no compression and 2 with good compression.
    9. Go out another day engine does not crank over, new battery, does not crank over, it just has a loud click!

    I have been working on cars all my life. I was a mechanic in the National Guard and I worked full time for the NG in Atascadero. I attended Allen Hancock College in Santa Maria for Auto Mechanics (4.0 GPA 1 semester) I feel like I am a good mechanic but I have worked in Construction for the past 30 years.

    Why would the engine crank over but now it is locked up?
    Why would there not be compression in 2 cylinder's?
    I appreciate all responses!!
    Thank you
    D.J.

  2. #2
    Join Date
    Dec 2015
    Country
    UNITED STATES
    State/Province
    Connecticut
    Posts
    770
    Post Thanks / Like
    Likes (Given)
    22
    Likes (Received)
    236

    Default

    You make a wrong turn?


    Sent from my iPhone using Tapatalk Pro

  3. #3
    Join Date
    May 2011
    Country
    UNITED STATES
    State/Province
    New Jersey
    Posts
    1,922
    Post Thanks / Like
    Likes (Given)
    173
    Likes (Received)
    1042

    Default

    This is a

    m a c h i n i s t forum

    not m e c h a n i c...

    big difference between the two.

  4. #4
    Join Date
    Apr 2005
    Location
    Beaverdam, Virginia
    Posts
    7,251
    Post Thanks / Like
    Likes (Given)
    608
    Likes (Received)
    3396

    Default

    Did they change the name to Practical Mechanic and not tell me?

  5. #5
    Join Date
    Sep 2017
    Country
    UNITED STATES
    State/Province
    South Carolina
    Posts
    473
    Post Thanks / Like
    Likes (Given)
    362
    Likes (Received)
    391

    Default

    Well he did talk about lapping. But that's a far leap!!

  6. #6
    Join Date
    Apr 2011
    Location
    Nebraska
    Posts
    1,212
    Post Thanks / Like
    Likes (Given)
    1691
    Likes (Received)
    353

    Default

    Quote Originally Posted by plastikdreams View Post
    This is a

    m a c h i n i s t forum

    not m e c h a n i c...

    big difference between the two.
    Well, in his defense, his location is listed as California....

    -Ron

  7. Likes Limy Sami liked this post
  8. #7
    Join Date
    Feb 2005
    Location
    Hatch, NM Chile capital of the WORLD
    Posts
    9,018
    Post Thanks / Like
    Likes (Given)
    13662
    Likes (Received)
    10663

    Default

    *THIS* is why you never put an ad in the Yellow Pages..

    Most people think that MACHINE shops and MACHINISTS only deck cylinder
    heads, Bore cylinders, Do valve jobs and Grind Cranks.. And the really
    really really good ones also port heads.

    There is nothing else in the world made out of metal, or that needs machining.

  9. Likes Limy Sami, Philabuster, L Vanice liked this post
  10. #8
    Join Date
    Oct 2005
    Country
    UNITED STATES
    State/Province
    Pennsylvania
    Posts
    14,547
    Post Thanks / Like

  11. #9
    Join Date
    Sep 2006
    Location
    Stillwater, Oklahoma
    Posts
    1,265
    Post Thanks / Like
    Likes (Given)
    87
    Likes (Received)
    653

    Default

    I'm reminded of reading about acronyms that British doctors would sometimes put on charts. For instance a notation of UBI stood for "Unexplained Beer Injury". The OP on this might be getting the TTFO note which was crude expression for "Told to Go Away". That one actually came up in court where the patient sued and the doctor was put on the stand. He was asked what the TTFO notation stood for and with astonishing presence of mind said, "To Take Fluids Orally".

  12. Likes TeachMePlease liked this post
  13. #10
    Join Date
    Oct 2012
    Country
    UNITED STATES
    State/Province
    Iowa
    Posts
    302
    Post Thanks / Like
    Likes (Given)
    145
    Likes (Received)
    77

    Default

    Quote Originally Posted by Sonatagoodcar View Post
    2005 Hyundai Sonata (4 cylinder)

    1. Purchased Sonata for $600.00 with broken timing belt, I had forgotten about interference engine technology.
    2. Replaced timing belt, Sonata runs rough.
    3. Perform compression test: cylinder's 1-2 no compression, cylinder's 3-4 good compression.
    4. Removed cylinder head; purchased 4 exhaust valves and 4 intake valves to replace bent valves, cleaned cylinder head and surfaces.
    5. Perform valve lapping and install new valves.
    6. Install cylinder head
    7. Engine cranks over but doesn't start
    8. Go out another day to redo compression test 2 cylinder's with no compression and 2 with good compression.
    9. Go out another day engine does not crank over, new battery, does not crank over, it just has a loud click!

    I have been working on cars all my life. I was a mechanic in the National Guard and I worked full time for the NG in Atascadero. I attended Allen Hancock College in Santa Maria for Auto Mechanics (4.0 GPA 1 semester) I feel like I am a good mechanic but I have worked in Construction for the past 30 years.

    Why would the engine crank over but now it is locked up?
    Why would there not be compression in 2 cylinder's?
    I appreciate all responses!!
    Thank you
    D.J.
    Starting with 9.) Is it locked up, or did the starter fail? How much have you been cranking it trying to start it. A 4 cylinder does not have a huge starter motor that can survive excess cranking.
    As you messed with the timing belt, are you sure you got that back correctly, which brings up that it may have slipped to now causing the starter to be locked with the piston on a valve.
    Take the timing belt cover off, and VERIFY it is correct.

  14. #11
    Join Date
    Jan 2015
    Country
    UNITED STATES
    State/Province
    Missouri
    Posts
    961
    Post Thanks / Like
    Likes (Given)
    210
    Likes (Received)
    591

    Default

    Trade it for a goat and shoot the goat


    Sent from my iPhone using Tapatalk Pro

  15. Likes TheOldCar, Tbartoletta liked this post
  16. #12
    Join Date
    Jul 2006
    Location
    Hillsboro, New Hampshire
    Posts
    7,204
    Post Thanks / Like
    Likes (Given)
    1686
    Likes (Received)
    4975

    Default

    Quote Originally Posted by D Nelson View Post
    Trade it for a goat and shoot the goat


    Sent from my iPhone using Tapatalk Pro
    Not with the Football season about to start! How dare you, Sir!

  17. Likes Mtndew liked this post
  18. #13
    Join Date
    Sep 2010
    Location
    Oklahoma City, OK
    Posts
    4,173
    Post Thanks / Like
    Likes (Given)
    720
    Likes (Received)
    1760

    Default

    Quote Originally Posted by Milland View Post
    Not with the Football season about to start! How dare you, Sir!
    Borrego is an excellent football snack!

    Sent from my SM-G973U using Tapatalk

  19. #14
    Join Date
    Jul 2006
    Location
    Hillsboro, New Hampshire
    Posts
    7,204
    Post Thanks / Like
    Likes (Given)
    1686
    Likes (Received)
    4975

    Default

    Quote Originally Posted by Cole2534 View Post
    Borrego is an excellent football snack!

    Sent from my SM-G973U using Tapatalk
    I was looking for a dessert, not a desert!

    Borrego Springs Anza Borrego Desert Activities, Hikes, tours, classes, lectures

  20. #15
    Join Date
    Nov 2004
    Location
    WI
    Posts
    4,680
    Post Thanks / Like
    Likes (Given)
    440
    Likes (Received)
    1067

    Default

    Since it is an interference engine, you HAVE to have is all lined up BEFORE you bolt the head on.
    If you bolt on the head, Then turn the crank to the alignment position, ... CRUNCH!! into junk.
    If you have the crankshaft aligned, then bolt on the head, Then turn the cam to align it... CRUNCH!! into scrap metal.

    And maybe the battery is now dead.

  21. Likes Bobw liked this post

Tags for this Thread

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
  •