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Hi there, i've got a 260z with roundtops on, and it idles like a bag of spanners, and emits a ridiculous amount of white smoke out the back. Normally you would think this would be a blown headgasket, but it is a brand new headgasket, torqued down correctly. I have even tried draining all the...

I've heard a lot of people say that if you float height is set incorrectly that your engine will run rich or lean, surely the air fuel is dictated by the mixture screw and what needle you have etc? and that as long as there is fuel in the bowl the engine will just draw as much fuel as it needs...

Hi there, Sorry if this has been asked before, i genuinely can't seem to find any info on it, maybe i'm searching wrong What are the differences between these two engines? I think i heard somewhere that the only difference was crank shaft, so a swap in crank shaft is all you need to turn it...

Hi there, I have a 260z with the following cam, 284 duration....210 at .050 duration with .435 lift on 109 degree LSA, would you guys reccomend the 40 or 45 triple webbers? and also would the stock mechanical fuel pump be adequate?

As title says, I have a 74 260z that came with flat tops, so i immediately changed them to round tops. The carbs look like they have been completely taken apart and steam cleaned, (i had to change both needles as they were bent), and I have no idea how to set them up even to start the car. the...

I have a 74 260z, and the odometer is reading 32000, but the car is in quite bad condition for that mileage, is there anyway to tell if it's rolled around?

Hi all, This is my first time restoring a car and taking apart an engine, so i'm learning as I go along. Recently the notch that holds the camshaft inline with the camhaft gear sheared off and my engine lunched itself and bent most of the valves, so i've began to take it apart to rebuild, and I...

So i was trying to get the car started and heard it was making no compression, so i did a compression test and confirmed that. I took the cam cover off and saw that when i was turning the engine over the cam gear was moving but the camshaft itself wasnt, the camshaft does move using some vice...

I purchased a set of 240z carbs of ebay and they were missing the arms that hold the nozzles in place, does anyone know where I would be able to purchase them? ive tried looking on line but i'm not sure i'm using the correct search term

Hi All, I have purchased an American 260z, it has both a mechanical and electrical fuel pump, but it seems the electric pump is blocked/broken, i've seen some people say that the mechanical pump was only installed in hot countries to prevent vapour lock, and is not 100% necessary. Could anyone...

Hi guys, I'm still trying to register my 74 260z, what is it that i need to send in with the v55? From what i understand: a filled in v55/5 the fee for vehicle tax (this should be £0 shouldnt it?) an original non uk registration document (i have the original Arizona Certificate of title...

Hi guys, I'm new here, so sorry if this has been asked a million times! On the V55/5 form it talks a lot about an IVA or MVSA certificate, where do I get one of these? As it would make filling in this form a lot easier. Cheers Josh

Hi there, i'm very new to these cars and going to be purchasing one very soon, are these engines fine to run on UK unleaded petrol? Thanks