Recent content by john-h

It seems that both carbs are running rich. Black smoke on every stroke. I have a colour tune to give me an indication of mixture at all speeds. Whatever I do I can't get the mixture close with the needles and jets as they are. The carbs are the late HIF6 type where the jet is moved up and down...

Rolling road is the next plan. Near by is Minisport who know a lot about SUs and do a needle matching service. HIF 6s are prone to needle wear because it touches the jet as it moves. It's great to get it up and running again after all the work!!

It had the Hitachi SUs on before and I'd had a huge struggle with them. I bought the new SU carbs on a zed manifold. I've done the usual SU tuning work - thinned the spindle, feathered the butterfly, smoothed the area between the barrel and the piston etc. Usual stuff for SUs. It's never run on...

My 260z has been laid up for a few years and I've got it up and running again, ported head and inlet manifold, ported HIF6 SUs exhaust manifold on its way. The problem I have is that I can't weaken the mixture enough without fulling a pipe off to let more air in. Is this just a case of...

I'm going to take the plugs out as the next step and turn it over. The battery was new last year but it has stood for a while discharged which isn't good for it. The headlights are very bright and there is no sign of dimming but it won't turn at enough speed. The strange thing is that it...

Hi, I overhauled and skimmed my head and got the car running but it needed setting up, timing and carbs etc. Now trying to start it again, the engine turns over too slowly to get it to fire. I have checked over my spare starter motor and all seems well and fitted that. Also I remade the...

I put 15 thou cam tower shims on the head and I've made no other changes after skimming and porting the head. The timing was somewhere near 40 degrees and it ran well not under load but it had absolutely no power when driving. Now I reset it to 10 degrees it runs better but it looks like the...

Got my car out today and had loads of trouble with the starter. It looks like bad connections. I thought I'd do up my spare from a very early 260 but it doesn't seem the same. Are all starter motors the same and can I use this early one on my late 260?

During the winter I rebuilt my spare head for my 260z and took 40 thou off it. I just got it out today and it is running very badly. The timing was miles too retarded. Nearly 40 degrees. I've reset it to 10 degrees to get it run better. The car has ported SUs, on a ported stock manifold and...

I'd like a 240k. L series engine and seats for the kids. Make a great Q car!! They do come up from time to time but many are rough.

I bought a car like this for £175 for spares and sold the fuel tank for that much and got what I wanted so there is some hope. Don't even think of restoring; it it will break you! The body is slowly returning to nature and once rust takes a firm hold you can see it vanish before your eyes...

I'm sure I saw a zed on ebay some time ago that had had a fuel fire under the bonnet from petrol leaking from the fuel pump area falling onto the alternator. Looks like zeds are a fire trap!!!!!!!!! After seeing this I bought a fire extinguisher.

Bongo, I fancied them myself. I shouldn't have said anything!!!!!!! Oh well all for the common good I guess.

If you search 260z on ebay there are some for sale this week. Polished stainless for twin carb set up.

I thought I'd strip my spare box and give it a once over. If the sycnchros look O.K. I could put it into my car and give it a go. If not I thought of building one good box from the two. The car does very few miles so once its done it will be enough for me and a nice smooth gearbox would make...