Packard Forum Index » Pre-War (1899-1942)

BDeB,

I finally got it removed. I appreciate your help.

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You are welcome. The fitting in the photo BDeB posted is one I have never seen. His advice to try and save this connection was a good one, and I am pleased you followed his advice.

(o{}o)

The fitting in the photo BDeB posted is one I have never seen

I don't recall seeing it either but have not been around the early cars that much..Question might be if it was a standard fitting of the time or something exclusive to Packard. If exclusive, wonder what the advantage was. Did they have the regular compression and flare fittings back then that we have today?

Since there is a difference in the two cars, perhaps the previous owner of JW's car was not as careful in removal so the reason for the difference.

I will be visiting the '37 next week and will take a careful look at the oil pressure gauge connection on the engine. Like I said in the beginning, my comments were from memory. We all know how our memory gets better and better as time passes. I'll post a photo too.

(o{}o)

The fitting in the photo BDeB posted is one I have never seen

Same fitting as used on my 34 and I believe rather commonly used on Packard during the 30s and earlier for this application.

Did they have the regular compression and flare fittings back then that we have today?

Certainly they had conventional inverted flare fittings in that era, they are used on the gasoline, vacuum and oil filter lines and why they didn't use an inverted flare on the oil pressure gauge line is unknown to me. Compression gland fittings were in use at that time, used (up thru 1936) on the Bijur lubricator connections. Relative to engine oil pressure, Bijur pressures are almost nil.

My 40 has this same oil fitting but my line looks much smaller in diameter than the picture posted, maybe 3/32" or even 1/16". My line is ruptured below the curly pigstail and about 2" before the special fitting going into the block adapter.
Can I torch the special fitting off, cut the line back to good metal, and resolder the fitting back on?
Is this plumbing solder or ox-acet brazing?

The adapter that screws in the block and mates with the oil line fitting looks to be a standard NPT fitting, so I would have thought a compression fitting would work here. But I am confused.

The holes that access the gallery for the main bearings, where the oil pressure gauge line fits, are tapped the conventional 1/8" NPT.

Apologize for not following-up on my posting from 2014 to look at the connection and fittings and post a photo.

(o[]o)

The oil line is very thin/small and you would not be able to put a double flare on it. A thicker line would take a double flare like a brake line but it would not be flexible enough for the coiled connection.

Packards and all, other cars were designed by brilliant engineers who used much of the latest technology available at the time

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This is a repair I would attempt. The copper tubing probably broke because it became hard from flexing for all these years. You might think about annealing as much of the exposed tubing as practical. It is plumbing soldering.

(o[]o)

A hint about soldering it back on - make sure that you clean the parts up in the area to be soldered and de-grease them. Then sand lightly (I use a fine emery cloth) to get a bright fresh metal surface then solder.