1938 1608

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Bluedevil
Posts: 245
Joined: Fri Oct 05, 2018 7:07 am

Re: 1938 1608

Post by Bluedevil » Sun Jan 03, 2021 9:22 am

Joe,

6 Gallons. I have the cabinet and washer, but this is a whole different thing.

No smell of kerosene-like products and no abrasive damage.

I got it for the rocker boxes on my Twelve.

Bluedevil
Posts: 245
Joined: Fri Oct 05, 2018 7:07 am

Re: 1938 1608

Post by Bluedevil » Wed Jan 06, 2021 9:43 am

On the Ultrasonic cleaner, I have found out that it is important to rinse and dry the steel parts ASAP and I use a fogging oil on them.

They are so clean, they tend to get surface rust very quickly.

Bluedevil
Posts: 245
Joined: Fri Oct 05, 2018 7:07 am

Re: 1938 1608

Post by Bluedevil » Mon Jan 11, 2021 12:51 pm

Water jackets are welded up blasted and primed.
Packard water jacket primed.jpg
I am assuming since the retaining bolts go thru to the water jacket that they have copper sealing washers on them?

Dave Czirr
Moderator
Posts: 5369
Joined: Tue Jun 16, 2009 5:30 am
Location: New Jersey

Re: 1938 1608

Post by Dave Czirr » Tue Jan 12, 2021 1:27 pm

I don't know for a fact, but if copper washers were used they'd almost certainly be indicated in the Parts List - have you checked there?

Bluedevil
Posts: 245
Joined: Fri Oct 05, 2018 7:07 am

Re: 1938 1608

Post by Bluedevil » Wed Jan 13, 2021 6:02 am

Dave,

I find a listing for part #209713 which is called "Motor cylinder water jacket plate screw washer". Says 56 are needed but the covers only have 50 bolts.

No mention of the type of washer.

Plates are listed as part # 197790.

I see no mention or code for material type on the washer.

Thanks for the help.

Bill

Dave Czirr
Moderator
Posts: 5369
Joined: Tue Jun 16, 2009 5:30 am
Location: New Jersey

Re: 1938 1608

Post by Dave Czirr » Thu Jan 14, 2021 2:33 pm

Thanks. Ive been doing without a Twelve parts list for too long, time to break down and get one. Sorry it didn't have the needed info.

Bluedevil
Posts: 245
Joined: Fri Oct 05, 2018 7:07 am

Re: 1938 1608

Post by Bluedevil » Fri Jan 15, 2021 4:55 am

Dave,

As always, you are a great help. Even if it is just pointing me in the right direction.

Thanks again. I can almost hear it running, at least in my dreams.

Bill

Bluedevil
Posts: 245
Joined: Fri Oct 05, 2018 7:07 am

Re: 1938 1608

Post by Bluedevil » Thu Jan 21, 2021 7:53 am

I am trying to wear out my ultrasonic cleaner. Where has this been all my life.

The question came up if you could use something like Evapo-Rust in it.

Since my tank would take like $75 to fill and it loses its efficiency over time I came up with a trial solution.

Also I didn’t want to dilute or have to remove my normal cleaning solution

I had a kick shackle apart and decided to use the dogbone as a trial.

I turned the heat up to 140 degrees, put the part in a ziploc bag, covered it with clean Evapo-Rust, sealed it, put it in the tank and turned it on.

I ran it thru 4-5 30 minute cycles for about a day and here is what it looked like verses the rest of the kick shackle.
UC rust removal.jpg
It looks like I should have left it in a little longer, but the part came out very clean, unlike the slime you have to wash off on straight E-R soaked parts. So it would appear the UC waves will penetrate the bag and activate the solution in it.

I took the used solution and dumped it into a bucket so I can derust parts that won’t fit into the cleaner until the E-R efficiency is used up.

I did not have very good results taking a slimy part out of E-R and putting it in the cleaner.

Bluedevil
Posts: 245
Joined: Fri Oct 05, 2018 7:07 am

Re: 1938 1608

Post by Bluedevil » Fri Jan 22, 2021 8:33 am

I just tried a product called Acid Magic

http://www.certol.com/acidmagichome/

I had a part that didn't respond well to Evapo-rust so I put it in a bag with this Acid Magic at 140 degrees and it was derusted in a couple hours with the UC on 30 min cycles every hour or so.

Bluedevil
Posts: 245
Joined: Fri Oct 05, 2018 7:07 am

Re: 1938 1608

Post by Bluedevil » Wed Feb 10, 2021 7:25 am

Knowing that reproductions exist, but wanting to keep the original casting date numbers, I decided to have a go at repairing the fairly extensive corrosion in the timing cover. It didn't look too bad until I blasted it and pieces just disappeared.
Packard corrosion2.jpg
Main problem areas were the inlet pipe, the outlet to the cooler and of course the back of the water pump area. I was going to try welding but the material did not weld well so I decided to try Lab Metal. It is basically an aluminum epoxy paste that air hardens, no mixing catalyst.

I started with the outlet to the cooler. The whole side was gone so I used aluminum screen mesh as a backer and spread the paste on it. Kind of like doing drywall.
Packard timing cover6.jpg
Here is the back side, you can also see the corrosion around the distribution to the block passages and pin holes in the back of the water pump area.
Packard timingcover.jpg
I put a piece of stainless tube in the inlet housing to give a little more strength and filled in around it. Lab Metal seems very strong, files and sands easily and hardens quickly.
Packard water outlet repair2.jpg
Here is the outlet to the cooler repair. Still needs some more filing/sanding/finishing. Then I have to figure out the water pump area.
Attachments
Packard timing cover repair.jpg

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