Help! Need to Identify Needle sizes for SU Carbs

[LedFoot]

I'm just about to order my rebuild kits for my Carbs, they are the Hitachi HJG46W which are the SU ripoffs with the external float chambers.

I've been told that there are three different needle/seat sizes for this particular model of carb depending on what vehicle they came off (240Z or 260Z).

Now I've got these on an L28 and they were originally on the L26 that I replaced. But I have no idea if they were taken off a 240Z previously or whatever.

Does anyone know how I can identify the needles etc required from any external markings on the Carbies?

If I pull them apart now and check the needles myself then I don't have a car while I'm waiting for the rebuild kit and if the person who had them before me didn't do it right then I may order the wrong one which means it will be back to running really rich, fouling plugs and glazing the bores......

Help!

[Bambikiller240]

Originally posted by LedFoot

I'm just about to order my rebuild kits for my Carbs, they are the Hitachi HJG46W which are the SU ripoffs with the external float chambers.

Sorry, can't help with information on the correct needles for your carbs.

However, I wanted to clarify that the Hitachi manufactured carburetors on our Z cars are not "ripoffs", as they were manufactured under license granted by SU. (for a significant sum of $ no doubt). So, they can be considered "SU copies" but they are certainly NOT "SU ripoffs".

[LedFoot]

Hey Carl,

No offence intended, I knew they were a licensed copy and to be honest the Japanese probably did a better job at manufacturing them anyway!

If anyone else has any ideas then I'd appreciate the info.

[Murph]

LedFoot: I thought there were two different needle types for these carbs, but I may be wrong. Anyway, since my carbs were stollen and the new set I bought needed to be kitted, I had the same problem as you.

In the end I took them to our local zed guru, he said they were the early 240Z type. The next problem was getting the kits. The "fuel misser" brand kits aren't made anymore unfortunatly. He had one on the shelf and it took him a week to track down another one for me (found it in nambour!).

I'm not sure what other kits are available, but you may have to look overseas. Let us know what you find out anyway.

P.S. That shop in nambour still had one more kit on the shelf as of 1 month ago.