Welcome! Becoming a registered user of ShortWingPipers.Org is free and easy! Click the "Register" link found in the upper right hand corner of this screen. It's easy and you can then join the fun posting and learning about Short Wing Pipers!

Thanks Thanks:  0
Likes Likes:  0
Page 1 of 2 12 LastLast
Results 1 to 10 of 17

Thread: Sealant on Magneto gaskets?

  1. #1
    McDaver63's Avatar
    Join Date
    Feb 2012
    Location
    Lincoln, CA
    Posts
    196
    Post Thanks / Like

    Default Sealant on Magneto gaskets?

    I was wondering if it is a good idea to put gasket sealant on both sides of the magneto gaskets? I've noticed some minor oil leakage at the bottom of one of my mags on my O-290-D2. I think I read somewhere that some put sealant on them. Any thought on that?

  2. #2
    Kurts's Avatar
    Join Date
    Jun 2008
    Location
    Roseville, CA
    Posts
    390
    Post Thanks / Like

    Default Re: Sealant on Magneto gaskets?

    Mark and I put an ever so thin film of high-temp orange on both sides of the gaskets when we put my mags back in last month. No leaks that I can see.

    Your hangar mate,

    Kurt.
    63' Colt

  3. #3
    Vagabondblues's Avatar
    Join Date
    Apr 2008
    Location
    N/A
    Posts
    742
    Post Thanks / Like

    Default Re: Sealant on Magneto gaskets?

    So....when you go to "bump" the magneto back into time will it move with sealant on it?

  4. #4
    rocket's Avatar
    Join Date
    Dec 2010
    Location
    Talkeetna AK
    Posts
    981
    Post Thanks / Like

    Default Re: Sealant on Magneto gaskets?

    Oh boy! Here is one of my pet peeves!


    I deal with a few new/overhauls a year and they always put the mag gasket on dry. The first time you need to bump the mag into time it tears at the vary bottom of the gasket and then it leaks until the next 100 hour when I pull the mag scrape the dry stuck to the case remnants of the gasket off. Grrrr.


    I use a vary vary thin film of fuel lube on both sides of the new gasket before reinstalling. This allows the mag to be adjusted later with ease and also easy to remove the gasket if needed later.


    This is one of the places where I do NOT use RTV :/


    Rocket

  5. #5

    Join Date
    Dec 2007
    Location
    Midlothian, Texas
    Posts
    110
    Post Thanks / Like

    Default Re: Sealant on Magneto gaskets?

    I have been using fuel lube on the gaskets.
    No leaks and easy to turn to adjust timing.

  6. #6
    Vagabondblues's Avatar
    Join Date
    Apr 2008
    Location
    N/A
    Posts
    742
    Post Thanks / Like

    Default Re: Sealant on Magneto gaskets?

    I use DC4 on the mag side only

  7. #7
    McDaver63's Avatar
    Join Date
    Feb 2012
    Location
    Lincoln, CA
    Posts
    196
    Post Thanks / Like

    Default Re: Sealant on Magneto gaskets?

    That makes sense. I had heard that some guys use Lubriplate but I think the fuel lube would work well and allow future adjusting. Is DC4 a sealant or type of grease?

  8. #8
    andya's Avatar
    Join Date
    Dec 2007
    Location
    UT47
    Posts
    1,942
    Post Thanks / Like

    Default Re: Sealant on Magneto gaskets?

    Dow lables DC 4 as pure silicon. It does not seem harden like rtv or other sealants
    "Progress is our most important problem"

  9. #9
    Vagabondblues's Avatar
    Join Date
    Apr 2008
    Location
    N/A
    Posts
    742
    Post Thanks / Like

    Default Re: Sealant on Magneto gaskets?

    Silicone grease.

  10. #10
    gliderman's Avatar
    Join Date
    Jan 2009
    Location
    Red Deer,AB Canada
    Posts
    1,066
    Post Thanks / Like

    Default Re: Sealant on Magneto gaskets?

    add my nod for DC4-. as Rocket says it's a "mumble mumble"job cleaning off dried and torn gaskets....

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •