Thread: Is my motor toast??

Results 1 to 3 of 3
  1. #1 Is my motor toast?? 
    SE Level Member 4boostin's Avatar
    Join Date
    Feb 2010
    Location
    Utah
    Posts
    41
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Chats
    0
    Sooo I bought an L67 powered fiero that wasn't running supposedly because of a non working fuel pump. That was a real problem that I diagnosed and fixed. But it still wouldn't start and sounded funny turning over with air pushing back thru the intake. Did a compression test, one of the cylinders was 0, others were all less than 100psi. Used the same compression tester on my other supercharged 3800 and got 155psi. Pulled the valve cover and found that NONE of the rocker arms are moving at all..... Timing chain must've broken, haven't torn into it. Sooooo, the question is, it there ANY chance the motor is reusable? My understanding is that its more thank likely that a valve hit a piston which means new valves and pistons (interference motor) aka might as well get another used motor since i'm not an engine rebuilder, and thats $$$. Right? Or can I look at the pistons for impact marks and make sure the valves aren't bent and if that checks out, throw a double roller set on and carry on? Engine should have about 115,000 miles with fresh LIM and head gaskets done 6,000 miles ago. Previous owner says he didn't hear any thing weird when it died on him. The fuel pump just stopped running. Thanks in advance

    98GS - 3" DP & Cat back, 9" K&N CIA in FW, Plog, 3.5", 180* Canned tune. 14.65 at 96.9mph, w/2.37 60ft. on G-Timer @ 4500 elev. @ 51*.
    87 Limited Turbo Regal- 12.04 @ 115 -Purchased New. Sold after 23 years and 115,000 miles
    Reply With Quote  
     

  2. Advertisement




  3. #2 Re: Is my motor toast?? 
    GTX Level Member QUICKSILVER462's Avatar
    Join Date
    Jun 2009
    Location
    HUDSON
    Posts
    1,088
    Thanks (Received)
    2
    Likes (Received)
    1
    Dislikes (Received)
    0
    Chats
    0
    Doesn't hurt taking the timing cover apart and checking out the damage to the timing chain, just takes time. Dont buy any parts until you have it disassembled and know exactly what you are dealing with.
    Reply With Quote  
     

  4. #3 Re: Is my motor toast?? 
    GT Level Member
    Join Date
    Jul 2017
    Location
    macomb mi
    Posts
    248
    Thanks (Received)
    1
    Likes (Received)
    3
    Dislikes (Received)
    0
    Chats
    61
    if I remember right these engines are non-interference so valves and pistons should be alright if just the timing chain broke as far as the actually gears that connect to the chain idk what happens to those when they break but id assume they make them stronger. probably listen to quick silvers advice on that
    2004 gtp SD headers, e85, #60 injectors, Walbroh 255lph, junkyard custom fender well intake, lq4 MAF, 3.1 Pulley, 1.95 rockers, l76 springs, shift kit and tranny cooler
    BMR trailing and rear control arms, zzp STB's, tubular control arms, Dorman and Addoco sway bars, intense coilovers, poly bushings and mounts.
    Reply With Quote  
     

  5. Advertisement




Similar Threads

  1. Well that differential is toast.
    By ADrugDealer in forum General Tech Discussion
    Replies: 11
    Last Post: 05-25-2015, 05:47 AM
  2. Severe Knocking .....Is My Motor Toast???
    By fastmvr in forum 3.8L V6 Supercharged (L67)(L32)
    Replies: 32
    Last Post: 09-10-2012, 02:27 PM
  3. I'd say it's toast
    By jwjones in forum Off Topic Discussion
    Replies: 2
    Last Post: 01-12-2012, 06:30 AM
  4. Yeah toast!
    By afallucco in forum Off Topic Discussion
    Replies: 1
    Last Post: 01-15-2011, 07:20 PM
  5. 3rd gear toast
    By izup69 in forum 1997-2007 4 speed Automatic (4T65E) (4T65E-HD)
    Replies: 3
    Last Post: 10-15-2009, 07:03 AM
Tags for this Thread

View Tag Cloud

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
  •