Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

Black light dye to see cracks?

Discussion in 'The Garage' started by 88K5Jimmy, Jul 20, 2006.

  1. 88K5Jimmy

    88K5Jimmy 1/2 ton status

    Joined:
    Jan 10, 2001
    Posts:
    1,323
    Likes Received:
    0
    Location:
    Tulsa OK
    Is there some sort of dye or spray that you can use on the surface of a tranny where the pan meets the tranny and view it with a black light to see if there are any hairline cracks in it that would cause a leak?

    If so, what are the details....I'm thinking about going CSI on that b!tch:wink1:
     
  2. spearchucker

    spearchucker 1/2 ton status

    Joined:
    Nov 17, 2003
    Posts:
    1,556
    Likes Received:
    0
    Location:
    Bay area, CA
    Here's one. I've seen others too, but that should suit your purpose.
     
  3. sled_dog

    sled_dog 1 ton status

    Joined:
    Sep 3, 2002
    Posts:
    16,870
    Likes Received:
    0
    Location:
    Austin, TX
    any dealership should have oil dye in stock. we use it all the time to locate oil/trans leaks that just can't figure out where they are coming from. or if there is a leak between the engine and trans and for some odd reason we can't determine whether its the rear main or front seal.
     
  4. 6.2Blazer

    6.2Blazer 1/2 ton status

    Joined:
    Feb 24, 2000
    Posts:
    4,675
    Likes Received:
    26
    Location:
    Ohio
    We use stuff like this all the time at work. There is specific dye for the type of oil that you actually put in the fluid (trans oil, engine oil, etc...) and then use a blacklight to see it. The reason it is nice is because it will show up with a black light before you ever would notice the plain oil seeping out.....and by that time it's usually a big spot.

    There is also dye penetrant you can spray on stuff and it will seep through the metal to show small cracks easier, but you typically use that on dry metal surfaces and not if oil is leaking through.
     
  5. DPI

    DPI 1/2 ton status

    Joined:
    Jun 22, 2000
    Posts:
    2,792
    Likes Received:
    1
    Location:
    In the Burbs close to Tulsa, OK
    I saw your post in the wanted section asking about a pan.

    I don't see how the pan could be warped.

    There are a couple things to be aware of when istalling the pan to make sure it doesn't leak.

    Use a neoprene gasket!

    Make sure the pan isn't stretched where the bolt heads attach. If they are, it will cause it to leak. You can fix it by using a hammer and flattening these areas. The pan bolts only need to be tightened enough to just barely start squeezing the gasket...
     
  6. 88K5Jimmy

    88K5Jimmy 1/2 ton status

    Joined:
    Jan 10, 2001
    Posts:
    1,323
    Likes Received:
    0
    Location:
    Tulsa OK
    Well, I actually won a NIB pan, gasket and filter....all AC Delco off ebay for $25 shipped.:D I'm going to try that and then see if it still leaks. I have replaced the gasket, torqueing to factory specs at least two times and it always seems to start leaking again. I even ran with the bellhousing off to make sure it wasn't the oil pump seal or the inlet seal on the tranny and it was coming from either of those two places. The only things left to eliminate are the tranny pan and if the case has a crack in it.
     

Share This Page