Changing Differential Oil

kcav8or

kcav8or

Member
Today I went through the frustrating and infuriating experience of changing the differential oil in my '31 Model A. The old oil was, of course, easy to get out, but getting the new stuff back in was another matter entirely. After experimenting with three different arrangements of tubes and funnels, one of which dumped a cup of the thick oil on my head, I finally arrived at a solution with a small funnel and a short length of tube that barely worked, taking a very long time to finish the job. The tube was just small enough to fit into the filler hole, but too small for that thick oil to flow at more than a trickle. But at least it's finished.

I know there's got to be a better way to do this. What works for you?
 

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If you are using the heavy stuff, take the squirt bottle you'r using , heat the bottle in a big pan of water, to get it thin enough to squirt it into the place were you want it to go.
 
I use the 600W that Bratton's offer. It comes in a quart plastic squeeze bottle with a tapered cap. I usually buy several quarts at a time. I cut off the end of the tapered cap so there is about a 1\4" opening. With a full bottle it is easy enough to put your finger over the end of the cap point it into the banjo with the bottle held up at an angle. By squeezing the bottle it ports oil into the banjo. I fill to spill. When it begins to run out of the fill port, stop squeezing and allow it to run off to a drip.

With several bottles on hand it is easy enough to have a full bottle ready to go when there is need.

Tom Endy
 
I think your car marked it's owner :-) I used a length of tubing and funnel heated container
600w flows like molasses at 40*F and I still made a mess :-(
 
all you need is a bottle top like this and its easy even cold
it works for the trans and steering box also
 

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I use a pump that is used for my outboard motors lower unit lube, it works every time and is very clean. Check your local boat supply. JMHO. Jim.T.
 
A pump oil can with the small nozzle unscrewed also works. Most of the time I use the plastic bottle like Mitch showed, or an empty ketshup bottle.
 
I know I am dating myself, but after 79 years that doesn't matter.Years ago on the old cars around the stations, for years we used the hand held suctions with a rubber hose to suck the oil out of the oil filters. I use that on my A,s. It works great, suck the 140 or 90 out of the bottle, stick the hose in the differential or transmission and push.
 
my experience is those cheap suction guns dont last and before you know it the fluid gets behind the diaphram and then comes out the backside of the gun and loses its suction power. i purchased a couple lincoln brand high quality ones and they lasted a little longer but yes its another option
 
Ditto what Mitch just said.
I bought a quality looking older suction gun last summer for a buck at a swap meet, but haven't tried it yet. Every one I've had in the past was a leaker.
 
the oil do any good controlling dry fly away hair? i also just warm up bottle it comes in...i buy extra...dont seem to get it all out under car..then pour all extra into one bottle...good luck,and keep head outa the way...kev
 
At an estate sale a while back there was an old, portable, 2 1/2 gallon steel service station oil container that had a pump attached to it. This type of portable tank, according to the old boy selling his stuff, was at one time on the floor of almost every service station's maintenance bay, and was used specifically for pumping heavier weight oil into car and truck differentials. Guess not many of those have survived for us hobby guys, huh?
 
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