Grover air compressor oil?

[samb]

I plan on using the pressure system for the potable water on the '61 Safari I am rebuilding. I have Grover air compressor model # 1393 and need to refill it with oil. Does anyone know or have the literature indicating what oil to use? I am concerned that a petroleum based oil may impart a taste and odor to the water.
Thanks for any information you can give.
Sam

[ZIGGY]

Do a search of Grover on the internet they still are in business jz

[markdoane]

Fill to the level of the oil plug with SAE 20w motor oil. That's the factory spec.

You're supposed to change the oil every 1000 miles. ?

PM me a fax number, I will send you the sheet.

[markdoane]

Originally Posted by markdoane

You're supposed to change the oil every 1000 miles. ?

Sorry, I read this again in daylight and it says 'check' oil every 1000 miles.

[scottanlily]

I use the grover pump in our 60 trdwnd and the oil amount is very small
a ounce or ? and no taste of oil or anything like that ,you can use mineral oil ,probably what was in those originally .I put in the 20 weight as well
no problems .Grover is still in business today and they offer a similar if not the
same pump for truck airhorns ,big rig stuff ,they are expensive 200 or more
dollars ,more I thought JC Whitney offered them also .You may have to look around for the mineral oil to put in it .

Scott

[overlander63]

Originally Posted by scottanlily

.You may have to look around for the mineral oil to put in it .

Scott

Scott, isn't that what we use in VW/Audi/BMW, etc for power steering fluid? If so, he can just go to the auto parts store and pick up a quart of the stuff.

[RichardT]

The Two Grover pumps I have both have their original tags (one in the Bambi and the other a spare from a parts unit)and they both say fill with 20W SAE (standard motor oil)

[scottanlily]

over63 , i think thats right and the weight would be fine for the Grover.
There won't really be oil contamination for the most part as your talking about a tiny amount anyway .my grover had a tiny spot of rust on the top of the tiny piston and I drained the oil (was still full after who knows how many
years),I replaced the one way inline check valve (water cannot drain into the compressor with it working correctly and mine had failed) reassembled evrything and its working great.SAE 20 can be mineral oil though as alot of
oils used back in the 60s were mineral oil specific ,even the 5 speed trans
in my 68 travelall has 90w straight mineral oil as the lubricant required as
shown in the factory IH shop manual and its GL-4 spec.

Scott

[61Bambi]

The litature I have is for a Grover model 1393.
It says "...after compressor is installed,remove oil fill plug and fill crankcase with S.A.E. 20W motor oil. Fill to level of oil fill plug (until oil runs out)."
"Check oil Level every 1000 miles"

Glad this came up, I've got to check mine asap. I guess they are saying not to turn the compressor upright prior to installation and put too much oil in it.

[scottanlily]

I do have 20 weight motor oil (valvoline to be exact) in my grover ,but
just making some comments on the oil in general , but Id go with the grover
recommended oil . definately do the oil level check on a regular basis.

scott

[samb]

I have been away from home for a while for the birth of my grandson. I want to thank you all for the information you supplied so quickly. Sure makes me, as the "new guy", feel welcome to this group. The air pump is working great now with your help. Thanks again!
Sam