Alberta Land Rover Enthusiasts Club Forum

General => Technical Discussions => Topic started by: grizzlychicken on March 28, 2020, 12:45 PM

Title: Gearbox painting advice
Post by: grizzlychicken on March 28, 2020, 12:45 PM

Hi All,
So I am in the process of stripping my gearbox and replacing some shafts and bearings. The td5 r380 transmission has both aluminum and steel casing parts. I stripped the steel casing but wondering what the wisdom is on painting the casing? Do it while apart? Put it together and tape the aluminum casing edge?  There are 3 pieces. 2 steel and one aluminum. One of the steel pieces is a support plate so it's exterior edge is thin.
Any advice or pics on what you have done or links?
(https://uploads.tapatalk-cdn.com/20200328/44a3ed09a3bc1af4feb03b42d252eea3.jpg)
(https://uploads.tapatalk-cdn.com/20200328/8beede096d49de3c9f903d9b98bb123f.jpg)


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Title: Re: Gearbox painting advice
Post by: Matt H on March 29, 2020, 08:58 AM

I'd paint the steel portion of the case gloss black whilst it's all apart. Leave the aluminum sections raw.

My 2c.

Title: Re: Gearbox painting advice
Post by: TJay on March 30, 2020, 12:06 PM

Like Matt says, gloss black for the steel and if you're feeling real flush you could anodize the aluminum. When I worked in the aircraft industry we painted the Continental engines - crankcase - continental gold, cylinder barrels gloss black, then anodized the heads, rocker covers and all the ali' on the accessories and replated fixings. Looked real sharp.

Title: Re: Gearbox painting advice
Post by: grizzlychicken on March 31, 2020, 10:32 PM

Awesome thanks guys. Not sure if I have the time to do the anodization but sounds like a great idea!
I got mine done and pretty happy with how it turned out :)
(https://uploads.tapatalk-cdn.com/20200401/7c01cb544a930f4198acb00183916055.jpg)
(https://uploads.tapatalk-cdn.com/20200401/d9dc8f4fbbac66ca2830ba6b0c79067e.jpg)


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Title: Re: Gearbox painting advice
Post by: Matt H on March 31, 2020, 10:52 PM

That's looking really good. The black paint helps with heat transfer, that's why most OEM engines switched to it for cast iron engine blocks. The gloss also helps a ton when cleaning the old undercarriage off after a "Dirty Weekend"  :o

Title: Re: Gearbox painting advice
Post by: binch on April 01, 2020, 05:22 AM

That looks nice n tidy now ;)

Title: Re: Gearbox painting advice
Post by: grizzlychicken on April 01, 2020, 09:37 PM

Mmmm looks what's cooking :) heat curing
(https://uploads.tapatalk-cdn.com/20200402/fefac043f68917a5fc354d9520c4ef29.jpg)


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Title: Re: Gearbox painting advice
Post by: binch on April 01, 2020, 09:39 PM

Let me guess...you ran that past the wife and she was okay with it???      Kinda like sneaking parts into the dishwasher LOL

Title: Re: Gearbox painting advice
Post by: grizzlychicken on April 01, 2020, 09:40 PM

Kinda just snuck it in there and hope she doesn't notice


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Title: Re: Gearbox painting advice
Post by: binch on April 01, 2020, 09:46 PM

ROFL