Topic: home-made carb syncronizer

[carl550k]

 was looking atthe vacuum gauge type synconizer that jc whitney sells for 50$ when i got an idea to make one myself. i can get vacuum gauges at a local tool store  for about 4$ each, the rubber hose can be had at any auto parts store for cheap. the tricky parts are the tube that screw into the intake ports, and the valves that close off the vacuum ports. i was thinking brass tubing and threading it with a tap and die set. anyone know the thread size? also where can i get these valves? or better yet, does anyone sell fittings that will permanently screw into the intakes, just put a rubbercap on them. it could make syncing the carbs easier and faster.hopefully i could make it for less than 30$, i know mercury syncers sell for that amount but dont want to play with hazardous material.

[Buffo]

The mercury manometers are the BESTway to sync your carbs.

As for the permanent adapers: Dennis Kirk - part # 28-958 or part# 28-959 Depending on the size.

Don

[Paul]

The thread size for these fittings is Metric M5 x 0.8.
I got all my bits including a Flow control valve to dampen the gauges, from a pneumatics supply Co.
M5 x 4mm push in fitting, 4mm tubing into 4mm Push in FCV, and then into gauge.
You can use Imperial down to the M5,.
This M5 size is similar to "some" Imperial size because it's so small. the pitch doesn't intefere too much until the bigger sizes. Put a fibre or rubber washer behind it.
I think you all should change from imperial ....that way we all could say 10mm instead of 1 and 3/32nds/54 x 72 16ths........and 1/3"

[oldbiker]

If you're interested, the Morgan carbtune II does not use mercury but stailess steel rods so there is no hazardous material involved and they are the best syncronysers you can get.

[jsaab2748]

If you're still intent on making your own, you might use the same type air valves that are used with home fish aquariums as "restrictor valves" to dampen the vacuum pulses. available at your local pet store. Don't know what they cost, but guess they'd work?

[eldar]

Well I have a mercury syncer and it is easy to use. Unless you are a BIGclutz, or you try to use ing in the dark, you will have no trouble. I even transported my syncer and had no leaks.

[mrbreeze]

You got that right OLDBIKER!! Just got mine last week and gotta say....What the hell was I waitin' so long for?