My 1966 Massey 135 Tractor (Pics)

[MasseyWV]

some parts were even cad plated and tinned at the factory..

Yep, cadmium was also used to plate many parts, but it's highly toxic so it's use has greatly diminished over the years. Telling the difference between zinc and silver cadmium plating can sometimes be difficult, but it helps to remember that zinc plating tends to be more shiney in appearance.

The following link has additional information about various plating materials and how to tell them apart.

Identifying Platings

 

[Soundguy]

yep.. i think the average person pretty much understands hot dip galvanized.. and might have a hair o' thoughts about bright zinc electroplating even..

 

[Mike476]

Spent more time learning about paint and prep work that would allow products from 30 years ago to stick to surfaces, like when Ford first came out with their galvanized lower windshield panels. These days I spend more time around alodined or anodized aluminum, expensive processes.

 

[MasseyWV]

Yesterday, I finished assembling the Delco-Remy generator after rebuilding it and performed a number of other smaller tasks such as sandblasting and priming assorted brackets from the transmission housing, and partially assembling the oil pump which can't be completed until I buy the correct tap then drill and tap the hole for the drive gear set screw.

Today, I've begun preparing the transmission housing for primer, but I'm doing it the hard way because sandblasting inside my garage would make a huge mess. There is some rust pitting that I'll have to deal with where a little Bondo here and there should do the trick.

Pedal soup anyone?

 

[Soundguy]

looking good!

 

[Mike476]

I've been contemplating how I want to repair some of the cast on my 135, the previous owner was a poultry farmer so I have some corrosion issues as well, your post about repairing corroded areas got me thinking about some of the products we use on aircraft.

Floorboards are an integral part of an aircrafts structure, sometimes made of two aluminum sheets laminated over a foil honeycomb core. When damaged / punctured we will drill out the damaged area and patch it, using a product similar to the two part liquid metal Devcon listed below as a filler to replace the damaged foil honeycomb. It has exceptional bonding and corrosion resistance characterisitcs. I've used it for smaller projects and have achieved excellent finishes using plastic to form the product immediately following application. When cured the plastic can be easily peeled away, leaving a finish that is so well formed and smooth only minor surface preparation is required prior to finishing.

For myself, I would only plan to use it for areas where the pitting is significant enough to warrant it, and because I'm someone who usually goes further than is required (what my wife refers to as ****) when doing this type of work, I'll be looking to buy more than the small tubes of the two part Devcon found in most box stores.

I've found a few addresses of different companies that manufacture similar products, I haven't had the time yet to really research what each has to offer but from what I've read so far I am strongly considering it over a normal bondo, thought you might find them interesting.

A. Devcon Corporation
30 Endicott Street
Danvers, MA 01923
800/933-8266

B. Belzona, Inc.
2000-T NW 88th Court
Miami, FL 33172
305/594-4994

C. Dumond Chemicals, Inc.
1501 Broadway
New York, NY 10036
212/869-6350

D. Diedrich Chemicals Restoration Technologies, Inc.
300A East Oak Street
Oak Creek, WI 53154
414/764-0058 or 800/323-3565

 

[Soundguy]

i wouldn't bother trying to cosmetically patch pitted cast. cast is porus by nature.... jmho

 

[Mike476]

Mine is corroded past mere pitting, and covers an area large enough that it would warrant a repair. Cast is porous, which is the primary reason it's so succeptible to corroding, but I do agree if it were minor in nature I wouldn't go through the expense of this type of product to make minor cosmetic repairs.

 

[Soundguy]

i'm still not seeing the issue.

a casting is either so far gone it's compromised in strength and structural integrety.. OR it's cosmetic damage.

compromised structure can't be repaired with smear on stuff or welding or brazing generally. it must be repalced with salvage.

if it's not structural damage.. it's cosmetic...

 

[Mike476]

Until I remove the corroded material I won't know whether it is actually to the point where the cast is structurally comprimised or not, my point is that if I find it isn't a structural issue the amount of material removed will most likely mean it will benefit from a filler engineered to better withstand the types of loads / stress this type of repair warrants more than bondo, used to cosmetically hide an actual structural repair.