Last question regarding 308 Trans Pan Gasket R&R | FerrariChat
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Last question regarding 308 Trans Pan Gasket R&R

Discussion in 'Technical Q&A' started by christopher, Dec 15, 2005.

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  1. christopher

    christopher Formula 3

    Nov 29, 2003
    1,136
    Ontario California
    Full Name:
    Christopher
    #1 christopher, Dec 15, 2005
    Hey Guys,

    Call me over concerned, but I just wanted to know:

    After reading all the tips on how to remove the gasket off the trans pan, I decided to remove it the best way that made sense. Well it was literally fused on like a weld. I ended up taking it off with a razor blade. This after using a plastic scraper that was useless. Even more useless Permatex Gasket Remover.....Anyway, I was concerned as to a few very slight razor blade nicks. Wanting to get the surface remachined, the machinest took an elongated sander and sanded (emory cloth I persume), and sanded to a smooth finist, without rounding the edges. I then took the pan home where I began to polish the sanding mars out of it. I'd like to get it close to factory as possible, I realize that no one will see it, but I want it the way if came.
    Has anyone else had a similar situation?

    Thanks, Chris.
     
  2. Mark 328

    Mark 328 Formula Junior

    Nov 6, 2003
    510
    Orange, Ca
    Full Name:
    Mark Foley
    #2 Mark 328, Dec 16, 2005
    A rough surface is probably better than a mirror surface to help hold the gasket in place. In my opinion, the sandpaper scratches would be benificial to help hold the gasket in place. Sometimes a gasket can slide out--especially if silicone is used. This sliding happens with the valve cover gaskets all the time.

    Mark
     
  3. wildegroot

    wildegroot Formula 3
    Professional Ferrari Technician

    Nov 19, 2003
    1,522
    Frenchtown NJ
    Full Name:
    Wil de Groot
    #3 wildegroot, Dec 16, 2005
    Chris,

    Unless you really hacked up the pan I wouldn't have worried. The gasket sealer would have filled the minor chissel marks. Polishing the pan's mating surface is possibly going to get you in trouble. The mating surface DOES have to be straight and level to make a good seal. I would use a litle extra anaerobic sealer and follow the directions I gave you when you first started asking about sealer and you'll be fine.

    Wil
     
  4. dbcooper

    dbcooper Formula Junior

    Feb 7, 2005
    281
    Costa Mesa,Ca.
    Full Name:
    Tim Romero
    #4 dbcooper, Dec 16, 2005
    The method that I use and doesnt cause me any leak drama, is this.Its a method taught to me approx 30 yrs ago by an old ,old mechanic and it works.After cleaning thoroughly both surfaces.(pan and Trans case.I apply a thin coating of Gaskacinch/Gaskasinch?brand gasket sealer to one side of the gasket(the side that will face the pan)and a coating on the pan.This is a contact type cement,so you must let both surfaces dry.The reason I use this is because it holds the gasket to the pan and keeps them from shifting during assembly.I then either install the pan as is, if all surfaces on the case are clean and straight ,or I apply a very thin skin of silicone sealer.clear is what I use cause it doesnt show.However I rarely use silicone.This method almost never fails me and doesnt leave a sloppy looking pile of silicone nor permatex on the sealing surfaces.Remember that the key to success is cleanliness.Do it right the first time and the time you take to do it right will pale in comparison to doing it twice.Also if silicone is used, all oil residue must be cleand cause it doesnt stick to oil.and if silicone is used allow it to dry for approx 30 minutes and then run a dental pick or similar in the gap/crack between the pan and case and any remaining silicone will curl off and out like a silicone worm and look reel purdy! . Tim
     
  5. tbakowsky

    tbakowsky Two Time F1 World Champ
    Consultant Professional Ferrari Technician

    Sep 18, 2002
    20,038
    The Cold North
    Full Name:
    Tom
    #5 tbakowsky, Dec 17, 2005
    Clean surfaces and proper tighten proceedure is key when sealing gaskets. You don't need to go all that tight with the pan nuts. Be sure you start all nuts by hand then then slowly start tightening from the center out working in a crisscross patteren. Continue like this untill all nuts achive the same torque. Let the gasket set for about 10 minutes and go around once more. Torque rention is a very key part of propper sealing.
     

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