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914_7T3 |
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#1
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Please forgive me, I'm new to all of this! ![]() ![]() ![]() Group: Members Posts: 1,854 Joined: 3-April 17 From: Los Angeles, CA Member No.: 20,991 Region Association: Southern California ![]() ![]() |
In reading up on some older threads, it has been stated that the Fan Shroud & Transmission Cases are Magnesium.
I have the shroud out for media blasting along with the engine tin etc.... Once completed should the shroud be finished with a high heat clear paint such as a Krylon that is rated up to 600 degrees. Also should there be any type of prep done between these steps. I want it to look right, but do not know if they were coated from the factory or should be left in the original finish. On that note the transmission case will not be blasted, but it was suggested that it be cleaned up with a wire brush and steel wool. Is that the correct way to go and similar to the shroud does it require a clear painted finish or just leave it alone. Here is a pic of a small section that I went over with steel wool after degreasing. ![]() ![]() Lastly, once the Muffler is blasted, does that require a high heat ceramic coating? If I do not coat it, will that just accelerate any future surface corrosion? Don't really want to spend 1/2 the value of a new muffler heat coating the old one. Any advice? |
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914_7T3 |
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#2
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Please forgive me, I'm new to all of this! ![]() ![]() ![]() Group: Members Posts: 1,854 Joined: 3-April 17 From: Los Angeles, CA Member No.: 20,991 Region Association: Southern California ![]() ![]() |
Thanks for chiming in everyone and the photos look great. Will be going ceramic titanium on the Muffler.
Spoke to a high end 911 restorer earlier today and confirmed that brass wool is the way to go on the transmission case. Also learned that media blasting may be too harsh for the fan shroud so I now have a line on someone that can do tumble blasting that is more gentle. Here's the kicker, the recommendation is not to coat the magnesium with any paint or clear finish, but to liberally spray it with WD-40 for a natural finish and leave it alone. As good as all of the painted photos look, I will go with the unfinished look. |
914_teener |
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#3
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914 Guru ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 5,208 Joined: 31-August 08 From: So. Cal Member No.: 9,489 Region Association: Southern California ![]() |
Thanks for chiming in everyone and the photos look great. Will be going ceramic titanium on the Muffler. Spoke to a high end 911 restorer earlier today and confirmed that brass wool is the way to go on the transmission case. Also learned that media blasting may be too harsh for the fan shroud so I now have a line on someone that can do tumble blasting that is more gentle. Here's the kicker, the recommendation is not to coat the magnesium with any paint or clear finish, but to liberally spray it with WD-40 for a natural finish and leave it alone. As good as all of the painted photos look, I will go with the unfinished look. I saw no harm and couldn't think of any on powder coating the fan shroud. I brass wheeled the trans case and used Gibbs as described keep the mag from corroding. The trans gets hot so I didn't want any insulation to inhibit radiation of heat away from it. It's probably not much but with air cooled motors every little bit helps. |
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