So easy a 12 year old can do it.

[MrOzz]

Gave my son the materials, and idea of what I needed and this is what he came up with. Also with help from the forums but still.









Now tommorrow I will try it out.

[Ivan]

So all four lines are basically linked together through the T fittings, with an open line to the valves for filling the apparatus with oil?

[MrOzz]

Its 2 Tee fittings going to a 3 gang valve. 1. to left set of tubes. 2. to the right side tubes. 3. for fill and drain. The loop at the bottom might help with flutter. I will know better when I test it tommorrow.

[webbcraft2150]

If ya can't sync carbs with it, can it be used as a beer bong?

[GARTHXS]

t fittings

Get rid of the ts and use each line on each vacuum port , and get some old pilot jets to minimize suction , this is what I did and It works well

[Ivan]

I have one that is just a single tube, which works well with two carbs, but is a pain to do all four, have to do them in three pairs.

GarthXS, does yours have four lines connected together? I am looking for a way to get a read on all four without having a 12 ft long synch tool.

[GARTHXS]

yup

just buy two yardsticks about 24' of 1/8 inch clear tubing and some wire ties , cut the tubing in half and make two big Us strap onto the yardsticks and suck the same amount into both sets then shove some old pilot jets into the ends of the tubes to minimize flutter , then hook it up to your vacuum ports, and svnc in this order 4to3-1to2 and then 2to3 adjust idle and mix and sync again, done, I use motor oil for mine

[Ivan]

That's pretty much what I do, but have to move the synch tool from pair to pair.

[planedick]

Time, effort, and poor synch

You guys trying to build these tools spend much more time and money (time is money) to build a seriously flawed tool that does only a so-so job. You would be far better off to just bite the bullet and spend the money to get the good one, (about $125) for the Morgan synch tool. I have the Motion Pro mercury sticks and it has been proven to me that the Morgan tool is so much better. My engine has never ran as good as after I used The Whiz's new synch tool. Gonna get one for me.... At idle I can hear each cylinder fire in order evenly and it will even idle smoothly at 500 rpm when it's cold. After warming up it is a smooth 1100 rpm.

[Ivan]

Time invested: 30 minutes, including the trip to the store.

Money invested: less than $5

Now, My time would have to be worth $240 an hour to make it equal to buying a Morgan.

I suspect it would be a week or more to have a new one shipped to me. At the mediocre sum of $20 an hour, that makes the Morgan Carbtune $3485. If my time truly is worth $240 an hour, it becomes $40445.

For that price, I might as well start a business selling my own carb synch tools.

[planedick]

But

You haven't proved that it works yet. I have seen the results of the proper synch and it's worth the $125 and being able to transport it in a small space without damage is a big plus.

[Ivan]

Re: But

Originally posted by planedick
You haven't proved that it works yet. I have seen the results of the proper synch and it's worth the $125 and being able to transport it in a small space without damage is a big plus.

So you lack faith in my incredibly scientific mind?

The Morgan uses stainless steel rods in tubes. Since the density of steel id greater than that of mercury, the scale can be much more condensed. Meaning that for a given amount of vacuum, the steel will move less than mercury. Also, a sliding rod will have frictional errors that a liquid instrument will not.

Furthermore, a less dense fluid will have a more expanded scale, I use ATF. It is my understanding that ATF is somewhere around 9 times more sensitive than mercury.

My instrument balances one carb against the other. Not as a comparison against atmospheric pressure, thus eliminating one more possible source of error.

All this is to say that the mere pressure of the screwdriver on the sync screw without turning it will register as about 2" of movement. I was able to synch within a hair's breadth of a turn of the screws. TBH, it was a bit of a pain to get the levels within about an inch of each other.

You do have me on the transportability. Next time I do a roadside synch, I will be in a sore place. Does it fit in the stock toolbox? Or do I need to buy some saddlebags to be able to take it along.

Lastly, if that's gum you're chewing, you'd better brought enough for everyone.

[MrOzz]

It works. OK I know what some of you gonna say. Its not as accurate as the Morgans. But that was not the point here. This was a DYI carbstick that I set my son to build. It is cheap only $10 to build and not the $114 for the Morgans,

I had my son do it so if anyone was nervous they can understand its very easy to build and it works.


Next I am going to have him clean and rebuild my carbs.


If I had the money to spend. Then I probably buy the Morgans. But If you dont this will get you by.


Thanks everyone in my previous post for the help.


Ozz