Crankcase Oil Question

[crybdr]

I have acquired an old Rockwell-Delta 40-440 24" scroll saw.

It has a crankcase that needs to be filled with oil. The manual says "fill the crankcase with light #10 oil...."

I'm having trouble finding this particular oil - I'm guessing it's called something else nowadays.

Anyone have this saw or know an equivalent to 'light #10 oil'?

Thanks for the help.........

[LCHIEN]

motor oils are rated on viscosity, with "weights" of 10, 20, 30 etc.
modern oils have milti-viscosity ratings that span many of the old single viscosity ratings.

A 10-weight oil would be pretty thin, lower weight = lower viscosity.

I would imagine a single weight oil of 10 would work for a small machine or, if not available at the auto store, a multi-vis oil like 10W-30 would work, too.

[Seedy]

I get 10# oil for my d7-3T at the local farm store.-Craig

[LinuxRandal]

In the old days, I know my grandfather used a lot of 3 in 1 oil for things like that, fans, etc. I am sure it is officially 20 weight though.

[cabinetman]

Sewing machine oil is in the 10 weight class, as is the older 3 in one oil in the red can. Many hydraulic oils are also 10 weight.
.

[docrowan]

Sewing machine oil is in the 10 weight class, as is the older 3 in one oil in the red can. Many hydraulic oils are also 10 weight.
.

Cabman, I don't agree, I think sewing machine oil is too light. As Loring suggests, I would use a 10W30 if I couldn't get a quart of straight 10 weight from the local auto supply store.

[pelligrini]

The 3in1 motor oil is SAE20, blue can. http://www.3inone.com/products/motor-oil/
Not sure what viscosity the 3in1 red&black is.

[capncarl]

my old Rockwell-Delta 40-440 24 scroll saw has what looks to be a heavy gear oil in it, possibly 90 weight. The previous owner had it for 30 years and said that oil was in it when he got it. It runs nicely, and has made it that long so I would say it is ok.

capncarl

[LinuxRandal]

Cabman, I don't agree, I think sewing machine oil is too light. As Loring suggests, I would use a 10W30 if I couldn't get a quart of straight 10 weight from the local auto supply store.

Traditionally, sewing machine oil is 10 weight. The older cans of 3 in 1, used to have pictures on them of various things, including a sewing machine.
Now I would not go with a 10w30 weight personally, as a lot of older things would have listed a non detergent based oil.

[Hoover]

Gear oil is non detergent oil. Multi weight oils are detergent type, and are meant to be used in modern automotive engines. You want non detergent gear oil. Farm supply stores, and machine supply stores should have want you need.

[phi1l]

my old Rockwell-Delta 40-440 24 scroll saw has what looks to be a heavy gear oil in it, possibly 90 weight. The previous owner had it for 30 years and said that oil was in it when he got it. It runs nicely, and has made it that long so I would say it is ok.

capncarl

I alway considered 90 wt. a nearly grease. When gears & other parts get worn, some people have been known to put in 90Wt. to reduce the noise for a quick sale

[cabinetman]

You might check the weight of air tool oil. It looks to be light weight like hydraulic oil.
.

[crybdr]

Thanks for the input everyone! I've got a lead on a quart of 10 weight machine oil at the local farm supply store. $2.70.

[nz5d]

Automatic transmission fluid if very close to 10 weight but of course, it does contain additives.

[LarryG]

Just as a matter of curiosity ... since there's no combustion involved, does the oil being a detergent or non-detergent formulation still matter?