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MG TD TF 1500 - Intake Manifold Injection System?

Just recently a TD has come up for sale on EBAY. Scrolling down through the photos I see what appears to be a plastic bottle filled with a red colored liquid plumbed directly into the intake manifold.

Can someone tell me what this might be all about please?

I also see a black hose attached on the top of the container in two of the photos and then it seems to disappear in the others.

Thanks, Dan



link... http://www.ebay.com/itm/141839514497?forcerRptr=true&item=141839514497&viewitem=
Dan Nordstrom

Marvel Mystery Oil. You can probably find references to it in the Archives. Bud
Bud Krueger

That's an AMPCO inverse oiler. It's used to inject Marvel Mystery Oil into the intake manifold to provide additional lubrication to the cylinder top end.
These units were also known as top cylinder oilers and made by a number of companies.
A bit more info here:

https://www.flickr.com/photos/91591049@N00/12435030174

Scroll down a bit on this page:

http://forum.ih8mud.com/threads/marvel-mystery-oil.468654/

On the AMPCO home page:

http://ampcolubes.com/home/benefits

Available from a major supplier, too:

http://www.mossmotors.com/Shop/ViewProducts.aspx?PlateIndexID=59481&SortOrder=1

BobbyG
Bobby Galvez

Another educational day for me. And here I thought I knew everything. Damn.

So the next question is....are they necessary?

Was this created to compensate our ethanol laced gasoline? Or is there some other reason?

Doesn't seem like a very good place to locate it. Right on top of the exhaust manifold. Wow!

And the little black hose? Its there and then its gone.

Thanks guys. I really did learn something. Never heard of such a thing before.

This is a great place for learning.



Dan

Dan Nordstrom

Should have read your attachments before I asked the questions. I got it now.

Do any of you folks run theses? DO we really need one? Wouldn't a small amount right into the fuel tank do the job?

Dan

Still wondering about that little black hose though.
Dan Nordstrom

Dan, Marvel Mystery Oil predates ethanol in gasoline by a long shot. Bud
Bud Krueger

While it might (emphases on 'might') provide some benefit, it is from the era when snake oil salesmen ran free in the country. Cheers - Dave
DW DuBois

I suspect there is a lot to Dave's comment.

I do remember seeing the product on store shelves when I was young, but don't remember ever using it.
Products like STP oil supplement was a big seller back in the sixties and seventies. We believed it really would stop a worn out engine from burning oil. Well it said so on the can....

I suspect that these products did offer some good as I'm sure many of their additives ended up in the oils we are using today. Or at least began the development process.

I remember Rislone as another fix-all product. I still see it on store shelves, but never see it used.

Dan



Dan Nordstrom

One person I know had one on a TD for a year or two. The only advantage ever seen was a wonderful way to ensure you changed spark plugs frequently and decoked the engine often. <grin>
Lew3

It's supposed to help break down carbon deposits when used in fuel. The top end oiler delivers the correct mix of MMO into the fuel as it passes through the intake manifold.

Here's a description of what it is claimed to do:
"Use the directions on the back for amount to put in the fuel per gallon of fuel (4 to 6 oz. per 10 gallons of fuel). MMO goes through the carburetor as a droplet, broken up like the fuel. When it enters the combustion chamber and the gasoline ignites, it is vaporized and soaks into the carbon buildup on combustion chamber walls, valve guides, around the valve stem, and on the spark plug. It soaks into the carbon and eventually loosens it up and it goes out the exhaust system."

I mix 4 ounces per 10 gallons into my fuel. I have noticed a benefit. My MGB was prone to a lot of burping and backfiring under deceleration. When I had the Zenith Stromberg pulled out and replaced with twin SU's it was more noticeable. The mechanic told me that it was probably carbon build up around the valve seats.

Reading some stuff on the interweb, where everything is true, I found similar information on MMO and decided to try it. Within a couple thousand miles the issues under deceleration were much reduced.

It was never intended as a fuel additive to improve performance, but as a lubricant for the top end where engine oil has a harder time going. As long as it does no harm my experience has been a positive which I attribute to the MMO. Maybe it's an illusion, but at pennies per tankful it's a cheap one.

I have seen these oilers installed on T-series cars at local and regional shows. Definitely a plus in the period accessory column.

BobbyG
Bobby Galvez

This thread was discussed on 29/11/2015

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