BigPete Posted November 20, 2009 Share Posted November 20, 2009 OK Boys (and Girls) - 64 dollar question. As far as I know (and I could be wrong) there are only two metric nuts/bolts on a Jabiru aircraft. Where are they? regards Link to comment Share on other sites More sharing options...
Tomo Posted November 20, 2009 Share Posted November 20, 2009 the one's sitting in the cockpit.... i_dunno Ooops wrong thread..! :ah_oh: Link to comment Share on other sites More sharing options...
planedriver Posted November 20, 2009 Share Posted November 20, 2009 No doubt about you Tomo, you're a bit of a nut. (I did'nt say nutter:question:) BigPete asked a sensible question, so i'll have to ask a Fred to try and get a sensible answer. 1 Link to comment Share on other sites More sharing options...
RKW Posted November 20, 2009 Share Posted November 20, 2009 Probably the nuts and bolts on the battery leads. All others appear to be AF although I think there may be a BSW or two as well. Cheers, Bob Link to comment Share on other sites More sharing options...
Vev Posted November 20, 2009 Share Posted November 20, 2009 Hi Pete, I would think the Bing carbie has the odd one or two? Cheers Jack Link to comment Share on other sites More sharing options...
Tomo Posted November 20, 2009 Share Posted November 20, 2009 No doubt about you Tomo, you're a bit of a nut. (I did'nt say nutter:question:) Yep, full of protein... Link to comment Share on other sites More sharing options...
facthunter Posted November 20, 2009 Share Posted November 20, 2009 Nuts. Spark plug threads are metric. Nev Link to comment Share on other sites More sharing options...
Guest Maj Millard Posted November 20, 2009 Share Posted November 20, 2009 Do you know why spark plugs have always been metric ???? Link to comment Share on other sites More sharing options...
BigPete Posted November 21, 2009 Author Share Posted November 21, 2009 We Have a winner ----- That's right Bob - metric on the battery connections, and me with out the matching spanner %#@^. And it looks like their could be other too. (thanks Jack) G'day Nev - one thing I didn't consider was the pitch of the spark plugs. but do I need a metric spanner to remove them???? OK Maj I give up - why (are they metric)? (Did the French or Germans have something to do with it?) regards PS - You're a funny guy Tomo - listen to Planey - he knows a thing or two. Link to comment Share on other sites More sharing options...
Guest Maj Millard Posted November 21, 2009 Share Posted November 21, 2009 They are metric because the Italians invented the spark plug.................... :confused: Link to comment Share on other sites More sharing options...
facthunter Posted November 21, 2009 Share Posted November 21, 2009 Plug threads. Not all of them are. Some early engines.eg. "T" model ford had a 7/8" taper thread. (like a pipe thread) which did not use a washer to seal. Plugs that have metric threads. (Nearly ALL) have all kinds of hexagons and some are A/F (Imperial inch fractions) across flats. The very early method of igniting the fuel in other than compression ignition (diesel) or semi- diesel (hot Bulb) was by a low tension spark where the plug points moved to open from contacting , inside the cylinder and a spark occurred at point separation.. Just a bit of useless historical information..Nev Link to comment Share on other sites More sharing options...
Tomo Posted November 21, 2009 Share Posted November 21, 2009 and me with out the matching spanner %#@^. Many many yrs ago a guy had the same problem, so he invented a thing called the 'farmers friend...' Yep, you guessed it - the shifter! :thumb_up: Link to comment Share on other sites More sharing options...
BigPete Posted November 22, 2009 Author Share Posted November 22, 2009 Yes, the shifter - often called the pilots hammer. thumb_down:angry: egads Link to comment Share on other sites More sharing options...
Dieselten Posted December 5, 2009 Share Posted December 5, 2009 Current Jabiru spark-plugs (NGK D9EA) require an 18mm deep socket, preferably thin-wall. Repco sell them. Get one with a 3/8" drive. Battery terminal hardware is metric on the Odyssey battery supplied from the factory. Haven't attacked a Bing carburettor yet, but it'd be a safe bet the thing is riddled with metric threads. Link to comment Share on other sites More sharing options...
stanzahero Posted December 5, 2009 Share Posted December 5, 2009 The old V6 Holden engines were a good example of the mixed threads. Every thread on the outside of the engine was metric, and all the threads on the inside of it were Imperial (SAE). You ended up with a metric engine mounting bolt thread and on the other side of the crank case wall you had imperial main bearing bolt threads. Link to comment Share on other sites More sharing options...
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