Carb rebuild kit / what's my carb? | The Z Club of Great Britain
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Carb rebuild kit / what's my carb?

Discussion in 'Tuning & upgrades' started by Graeme - CZ, Jun 12, 2018.

  1. Graeme - CZ

    Graeme - CZ
    Z Club Member

    Hello forum,

    Need some help. I've got a 240z which has an upgrade to the L28 engine, though I know little about it. I'm keen to refurb the carbs, but not sure what I need or where to get it. Any tips anyone can provide? Also, which carbs do I have. Please see the pics below.

    Any help / tips gratefully received.

    Thanks, Graeme

    7ab3e4d5-108e-4395-9258-75c5f197bc79.jpg 18f4f396-c800-4d24-a8b3-0877d228d3ba.jpg 49c5e43a-2bea-4490-a3c7-38bd08b533d6.jpg IMG_1505.jpg
     
  2. Graeme - CZ

    Graeme - CZ
    Z Club Member

  3. dav118118

    dav118118
    Z Club Member

    The carbs you have are the earlier 240z round too carbs. You can get service kits for them. Maybe try Mike Feeney here on the forum or maybe the us. There is a very good step by step carb set up thread on here which is worth a read.
    I should think any silicone ignition lead should be fine. I use a Taylor set of leads on mine but the Ngk ones should also be fine, Luke
     
  4. Graeme - CZ

    Graeme - CZ
    Z Club Member

  5. cosworth415

    cosworth415
    Z Club Member

    Mike also does HT leads
     
  6. Graeme - CZ

    Graeme - CZ
    Z Club Member

    Yes, I’ve ordered the HT leads from mike.


    Sent from my iPad using Tapatalk
     
  7. Farmer42

    Farmer42
    Z Club Member

    Apart from your carbs being old, why do you want/need to refurb them? Are they running rough or causing misfires? If so, one of the major causes is wear in the throttle shaft bushings & butterfly valves. A lot of the refurb kits don't come with bushes so you could be spending out on an expensive kit only to find the same problem. You will need to drill out the bushes if you need to replace them and that is a fiddly job and needs the right equipment. If they are working fine, I would leave them alone bar a good tune up & balancing.

    If you really want nice running carbs that have been fully refurbished, ZTherapy are a good bet as they do the whole lot. AliK on this forum has had a set from them but they are expensive and you have to factor in the import & shipping costs and the cost of the core charge or returning the old ones. Having costed this recently myself, all in you are looking at over £1000.

    I decided to give that a miss and went for British HS6 SU carbs. They are cheaper and you can get every part you need easily and quickly. I got all my bits from Burlen based in Salisbury & they even do new carb bodies with new throttle shaft bushes already installed or they can replace them for you. I did a thread with a write up on how to convert them from the Datsun carbs and it cost me around £250 which included buying the used carbs and the bits to refurb them. You do however need to still watch out for throttle shaft wear which is easily detectable if you can inspect before you buy.

    Burlen now also do a full HS6 carb set for a Datsun 240Z which again is cheaper than ZTherapy.
     
  8. Geoff-R

    Geoff-R
    Z Club Member

    With regards to the Burlen carbs I have been on the waiting list as they've been on back order for around 4 months or so. Got word today that I should have them in a couple weeks. Looking forward to seeing what they're like, my old man purchased a set for his TR4A some time ago and they look to be pretty good.
     
  9. Farmer42

    Farmer42
    Z Club Member

    Yeah. I think I was told the same when I asked a few months back. I think there is a shortage of HS6 carb bodies.That's why I decided to look for a good set of used HS6s and rebuild them myself. As I have said, Burlen do all the separate parts and as long as the throttle shaft bushes are ok, the rest is fairly simple. Otherwise, buy some used ones and send them in and they will refurb them quicker. Sets come up on e-bay quite frequently. The closest match to a Datsun configuration is on an MGC but its getting hold of them!.
     

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