Mercury Autoblend injection system???

[schmalts]

I bought this 96' 50HP merc today. The guy was running his oil in the gas but handed me the brand new "autoblend" tank and pump unit. Any reason Why I should or should not hook it up? Anyone have a installation manual for the thing? there is only 3 wires, my guess is Purple to the switched 12V under the hood, Black to ground and Tan to tach. But the plumbing and stuff I have bo clue and the oil is something a guy dont want to guess on. Or should I just Mix the gas as the last owner did?

 

[Bifflefan]

Re: Mercury Autoblend injection system???

I bought this 96' 50HP merc today. The guy was running his oil in the gas but handed me the brand new "autoblend" tank and pump unit. Any reason Why I should or should not hook it up? Anyone have a installation manual for the thing? there is only 3 wires, my guess is Purple to the switched 12V under the hood, Black to ground and Tan to tach. But the plumbing and stuff I have bo clue and the oil is something a guy dont want to guess on. Or should I just Mix the gas as the last owner did?

All good questions...
Id order a manual or get one locally, read it, and then tackle the install.
I think they work better with the injection system, if they work right.
But mixing gas is not hard and it never runs out of oil.

 

[madgadget]

Re: Mercury Autoblend injection system???

I have one of these units I just want to have a play around with. Did you ever find the wiring for it?

 

[Really Old Guy]

Re: Mercury Autoblend injection system???

Took mine out! To unreliable!

 

[Faztbullet]

Re: Mercury Autoblend injection system???

Do not even think about installing it unless you want to rebuild engine, Mercury quit making these and no parts are offered to repair them. I know of at least 15 engines that where blown due to these units when I worked at a dealership.

 

[madgadget]

Re: Mercury Autoblend injection system???

Ah you see, you underestimate my ability doesn't my name give a clue lol.

2 stroke oil is coloured as we all know, the more 2 stroke vs petrol the darker the fuel. I plan to make an optical sensor that with a little bit of electronics will be able to inform me of the ratio of 2stroke to petrol. That's the theory anyway!

It would be a case of mixing say 10 blends from 1:10 to 1:100 and plotting the results and then you could quite accurately I reckon see what's going on and know well in advance if there is a problem If it turns out and works well then I shall add it to my V6 merc so I know what is being supplied to the fuel rail

I shall try with various optical sensors etc to see which works best. I would imagine that it may be necessary to calibrate to different brands of oil but that wouldn't be a problem.

Hence why I said I want to have a play with one

I just wanted to know what the wiring did, but it appears only to inform of a low oil situation, and nothing else.

Ed