Ampco Top Cylinder Oiler Kit Mounting

[Junior]

Thinking about getting one of these but not sure where the Jar would mount in the engine compartment. Was wondering if any of you guys had one and if so, where did you mount the Jar? Thanks in advance for your thoughts.

[Russ/40]

The firewall is your only option. You want a good solid mount.

[J Franklin]

Instead of drilling your firewall why not just add 4 oz marvel mystery oil at each fill-up.

[Tom Wesenberg]

Originally Posted by J Franklin

Instead of drilling your firewall why not just add 4 oz marvel mystery oil at each fill-up.

You beat me to it, but that's what I'd do. The extra oil in the gas will help keep rust out of the tank!
And the engine compartment will remain "cleaner".

[29ModelA]

I'm newer to these cars, but why would you want this? What does it do?

[Willie Krash]

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I too just add MM oil to my gas. Goes way back to my early VW days. It seems more trouble than it's worth..

[Tom Wesenberg]

Originally Posted by 29ModelA

I'm newer to these cars, but why would you want this? What does it do?

Several do-dads, gizzmo's, and gadgets were sold during the 50's and 60's promising to add life to the engine, or extra horsepower, etc. J.C.Whitney had quite an assortment of stuff. This oil jar lets oil drip into the intake to help lube the upper part of the cylinders.

[Junior]

I already add MMO to the gas. Just thought this would be a neat add on. Guess now that the restoration is done I am looking for more things to do to it. Maybe I need to quit while i'm ahead. Not really interested in drilling the firewall anyway. Just thought the oiler was kinda neat.

[J Franklin]

I have an oiler mounted on my 1928 Model A (Hupmobile), I bought it that way so it will stay but I think the MMO in the tank does the same thing and as Tom W. says it will keep the tank from rusting.

[MikeK]

That Ampco was designed to compete with the Marvel INVERSE oilers. I collect Marvels. The Ampco does a really bad thing, IMHO. When manifold vacuum is high (idling, cruising) it sucks/delivers at a maximum rate you set. When vacuum is low (Wide open throttle, lugging, uphill) the delivery rate drops to zero. This is exactly the OPPOSITE of what you need!

The Marvel INVERSE oilers monitor the vacuum and deliver more at wide open or low vacuum, when you need it, and much less at idle and high vacuum cruise.

There is one distinct advantage to the external oiler over mixing the MMO or upper cyl lube with the gas. That has to do with combustion characteristics and vaporization of fuel and oil micro droplets. Mixed with gas the droplets from the carb spray are very fine. The petrol vaporizes first, leaving a dissociated tiny nebulized micro cloud of oil smoke particles during the compression stroke. Almost 90% of the MMO is burned, serving no lube function. When introduced as a separate spray feed the oil droplets are much larger and not subject to dissociation into such tiny oil particles. About 50% is burned, the rest serves as cylinder wall and valve stem lube.

Setting a Marvel Inverse Oiler to deliver 2 oz every tankful is about equal to adding 4 oz to the gas. Because of the wrong way metering of the Ampco jobs, you need to set delivery to about 12 oz per tankful to get the same low vacuum protection. This results in a plug fouling excess at idle and cruise.

All Judson superchargers used Marvel Inverse Oilers. They were necessary, just mixing the lube in the gas would result in early supercharger failure.

All Marvels had a little round visual glass window to look in and set the drip rate.



In the early 30's Marvel also made a really neat dash mounted remote window and adjustment knob, so you could crank it up on the fly, for hot or heavy running. If you find this unit NOS/N.I.B. with its complete kit let me know!