Turbo 3.8 Spun bearing failure - FirebirdV6.com/CamaroV6.com Message Board

Announcement

Collapse
No announcement yet.

Turbo 3.8 Spun bearing failure

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • ssms5411
    replied
    Nice , good deal.

    Leave a comment:


  • Turbovert01
    replied
    Originally posted by ssms5411 View Post

    Yeah, I would think so when I went from a M5 to A4 we just put a flexplate on. No problems. Hows the L32 coming along? You doing the cam,heads and double roller on to the L32?
    All of the above . Working on it as I type this, almost fully built and ready to be dropped back in.

    Leave a comment:


  • Turbovert01
    replied
    Originally posted by SHADOWII View Post

    I am trying to understand the issue so others following in your path can avoid the pit falls along the way, so bare w/me. Your thoughts are, the fuel leaning caused KR to beat the bearing, resulting in the "spun bearing" correct? Can you tell if the fuel lean was on all cylinders or just #6?
    I am very familiar w/turbo charging and know the importance of the fuel system which leads me to my next question. Were you able to monitor the fuel psi rise w/the applied boost? Or doesn't hptuners monitor that? I don't have much knowledge of Hptuners, sorry. Any info on #6 cylinder in the event that the problem was caused by the injector and not the fuel pump being able to keep up w/the demand, because in order to reach your goal of 16#'s of boost, the minimum pressure supplied by the pump would have to be ~70#s.
    No info on fuel pressure whatsoever sadly, should have had a temporary gauge in at least but got too excited and skipped it. This time I will hook one up and see if thats what happened for sure. pump and Injectors should have handled it (320 LPH pump) and 60# injectors but maybe something else is wrong. I’ll know when I get this new engine what is wrong for sure.

    Leave a comment:


  • SHADOWII
    replied
    Originally posted by Turbovert01 View Post

    It was the L36 block I spun the bearing in, I’m replacing it with the L32 block, but yea it was a spun bearing. It was cylinder 6 rod bearing. I’m sure it was oil that actually did it, as we dropped pressure, but I think what triggered the oil problem was running lean from lack of fuel for some reason. I will now hook up a fuel pressure gauge so this doesn’t happen again.
    I am trying to understand the issue so others following in your path can avoid the pit falls along the way, so bare w/me. Your thoughts are, the fuel leaning caused KR to beat the bearing, resulting in the "spun bearing" correct? Can you tell if the fuel lean was on all cylinders or just #6?
    I am very familiar w/turbo charging and know the importance of the fuel system which leads me to my next question. Were you able to monitor the fuel psi rise w/the applied boost? Or doesn't hptuners monitor that? I don't have much knowledge of Hptuners, sorry. Any info on #6 cylinder in the event that the problem was caused by the injector and not the fuel pump being able to keep up w/the demand, because in order to reach your goal of 16#'s of boost, the minimum pressure supplied by the pump would have to be ~70#s.

    Leave a comment:


  • ssms5411
    replied
    Originally posted by Turbovert01 View Post
    Hey quick question guys I can’t find a solid answer online, can I use the L36 flexplate on my L32 block? Some people say it’s fine some say it will spin a bearing.

    UPDATE: This is a flexplate not flywheel so I’m pretty sure we can, ZZP says so because it’s internally balanced
    Yeah, I would think so when I went from a M5 to A4 we just put a flexplate on. No problems. Hows the L32 coming along? You doing the cam,heads and double roller on to the L32?

    Leave a comment:


  • Turbovert01
    replied
    Originally posted by SHADOWII View Post

    Have you torn down the L32 block to determine the cause of the failure? Was it actually a spun bearing and what bearing failed? In my experience it is usually a blocked oil passage or pump failing or failed. Which could be from something as simple as a poor choice in oil filters. Many oil filters have allowed trash to pass thru. Napa or WIX(I think WIX supplies NAPA?) have proven to be the most reliable. It was discussed in the buick community and that was the conclusion.
    It was the L36 block I spun the bearing in, I’m replacing it with the L32 block, but yea it was a spun bearing. It was cylinder 6 rod bearing. I’m sure it was oil that actually did it, as we dropped pressure, but I think what triggered the oil problem was running lean from lack of fuel for some reason. I will now hook up a fuel pressure gauge so this doesn’t happen again.

    Leave a comment:


  • Turbovert01
    replied
    Hey quick question guys I can’t find a solid answer online, can I use the L36 flexplate on my L32 block? Some people say it’s fine some say it will spin a bearing.

    UPDATE: This is a flexplate not flywheel so I’m pretty sure we can, ZZP says so because it’s internally balanced
    Last edited by Turbovert01; 06-06-2019, 06:41 PM.

    Leave a comment:


  • SHADOWII
    replied
    Originally posted by Turbovert01 View Post
    Update: tore down L32 to the block, dropped my K member and am beginning to transfer parts. Here’s a pic from last weekend when I had just dropped the K member.
    Click image for larger version Name:	73533D16-41FB-46DC-8F8F-8FC3B0117195.jpeg Views:	0 Size:	3.49 MB ID:	1573477
    Have you torn down the L32 block to determine the cause of the failure? Was it actually a spun bearing and what bearing failed? In my experience it is usually a blocked oil passage or pump failing or failed. Which could be from something as simple as a poor choice in oil filters. Many oil filters have allowed trash to pass thru. Napa or WIX(I think WIX supplies NAPA?) have proven to be the most reliable. It was discussed in the buick community and that was the conclusion.

    Leave a comment:


  • ssms5411
    replied
    Always run a intercooler with a turbo , meth is just a added feature to run more boost with no KR. You'll burn a piston with no intercooler.

    Leave a comment:


  • LETZRIDE
    replied
    That’s a good price for the 5th gen blowers.

    Meth is a good thing to look into- even if you don’t tune the car on edge and use it for safety. You can have it only spray at WOT, so it lasts a long time before having to refill. A lot of guys actually hook it up to the windshield washer fluid and use the washer fluid which is 40% meth in their cars.

    You could actually not use a intercooler too if you wanted as meth cools the intake charge quite a bit

    Leave a comment:


  • Turbovert01
    replied
    Originally posted by alex553 View Post
    How much for the blower? My fiero is gonna need that! Lol
    ZZP sells them used for 400$, I was going to ask 200$ + shipping for it. 04-07 generation 5 Eaton M90, Spins freely and has 85k on it.

    Leave a comment:


  • alex553
    replied
    How much for the blower? My fiero is gonna need that! Lol

    Leave a comment:


  • ssms5411
    replied
    Looks good, and you can sell the left over parts.

    Leave a comment:


  • Turbovert01
    replied
    Update: tore down L32 to the block, dropped my K member and am beginning to transfer parts. Here’s a pic from last weekend when I had just dropped the K member.
    Click image for larger version  Name:	73533D16-41FB-46DC-8F8F-8FC3B0117195.jpeg Views:	0 Size:	3.49 MB ID:	1573477

    Leave a comment:


  • Turbovert01
    replied
    Originally posted by LETZRIDE View Post

    Have you looked into Meth? I want to run meth even on my NA car. Aside from the cooling benefits pure meth will give you an octane rating of 116 when sprayed with the use of 91 octane in the tank.

    Especially being a turbo car the benefits are way bigger than NA cars
    Hmm I had not considered that, I don’t have any knowledge on meth, but this is a DD for me so I didn’t want go too crazy with the fueling it’s set up for 93 right now. Maybe in the future

    Leave a comment:

Latest Topics

Collapse

  • ssms5411
    Got a new phone
    by ssms5411
    Got a the iPhone 11 pro max. First iPhone for me, have acouple of iPods so thought I would try it. Pretty good so far.
    1 day ago
  • warejohn
    Front wheel ABS sensor jumper harness replacement?
    by warejohn
    Where might I find a new/reproduction or NOS jumper harness that plugs into the front wheel ABS sensors? Car is a 03 Camaro V6 auto. Location: Garden...
    1 week ago
  • warejohn
    Hello from Garden City..
    by warejohn
    Hello all this is John. I'm glad to be the part of this community, hope to discover some interesting discussions from fellows
    1 week ago
  • ssms5411
    ZZP mini afc
    by ssms5411
    Anyone try these for their 3.8 turbo yet? I had one a way long ago, they make one thats non adjustable and one that is adjustable. The non adjustable...
    1 week ago
  • ssms5411
    Seafoam story
    by ssms5411
    So last tank of gas I put like 8 cans of seafoam in the gas tank. I start my Camaro every other day to mainly charge the battery. Have a draw I can't...
    1 week ago

FORUM SPONSORS

Collapse
Working...
X