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Ginger: (1st of all, Happy New Year!) Not that you need to hear this but..... it's "tune-up" time for your baby in addition to the M/C work. Seriously.... with appropriate choke, your stock Spridget should fire right up right down to less than 20 degrees with no problem at all....and run smoothly with appropriate choke from dead cold as well. Cap'n. Bob '60 :{) PilotRob@... 28018... MORE
I put the new battery in the car, start it up. I have not started it since early Dec. It runs, but it is missing, and I have to play the accelerator to keep it going. Then, is just dies. It will turn over, but it will not start. I remove the distributor cap, and I am not getting any spark at the points. I went through all the steps in Bentley's "finding a fault in the low tension circuit" and everything checks out ok, but still, NO SPARK! There is even voltage across the points, this is crazy........... MORE
Happy New Year to all! I promised myself I'd get into Midget gear right after the first. My dual Spitfire(Gasp!) carbs and manifold are in hand but the carbs are dirty! Does anyone on the list have a good method to remove years of grime, gunk etc. so the new setup can look good? I've been told to soak 'em in carb cleaner but I've never been that impressed with the results. Would also be interested to know if any cutting is involved when installing a Spitfire 1300 carb/manifold setup in a RB Midget. Thanks in advance. The days... MORE
You don't need any other reading material other than the 'bible'! And I've also heard problems of bonnet clearance with that manifold and a 1 =3D=0D 3/4 SU, you may have to make a 'bulge' in it - eek ! Nigel "amukdigiphoto" 27978... MORE
An LCB is an awful lot easier to fit to a Midget than a Mini. The only potential problem area is the hole where it has to go past the chassis rail; you might need to relieve the flange on one side to get the manifold to fit. The MG Metro inlet manifold will fit but there might possibly be carb/bonnet clearance issues (not 100% sure about this bit) There are several other alternative manifolds for a single 1" SU though, if this is a problem. Regards David PS reading recommendations should include David Vizard's 'Bible'! 27974... MORE
"1.75 SU bulge" Not if you buy the "correct" Titan manifold as provided over here by non other than Vizard's partner in crime, the "other" David at www.aptfast.com Cap'n. Bob '60 :{) PilotRob@... 27979... MORE
Ahh! Yes, I forgot they fitted those odd Stromberg things in the USA! I was of course assuming it had twin SUs, like any normal '77 UK car. Sorry! Guy "Guy Weller" 27969... MORE
Mr Zappa, You should have a Zenith cd150 carb installed on your car if it is stll as originally equipped. These carbs have been trouble since the day they were installed new and only get worse as time goes on. As for the fuel leak. Look real close at the rubber hose where it attatchs to the carb body. Small hairline cracks frequently are found causing fuel to weep. Have someone crank it over and you watch right here for where the leak appears. Another possibilty is the auto choke (if installed) can be a pain in the a$$.... MORE
Wouldn't a US spec '77 have a Zenith/Stromberg carb not SUs, so no external fuel feed to the jet? Sorry I don't know enough to offer any further advice though. David "David Jacobs" 27962... MORE
Zappa? Is that you Zappa? Leak is most likely caused by a sticking fuel float inlet valve. It may have a bit of grit in it. They are easy to replace, but try cleaning it first. Another likely culprit is the short length of flexible plastic tube that connects from the base of the carburetta bowl to the main jet. They come loose and leak at the bowl end. There should be a small neoprene washer, a brass washer and a gland nut. Don't overtighten the gland nut, but do make sure the pipe is pushed well into the... MORE
David I mean in terms of the 'state of tune' of the engine. Did the MG Metro not have a different inlet manifold, cylinder head, bigger inlet and exhaust valves and carbs etc ? Nigel "amukdigiphoto" 27945... MORE
Fit a catch tank & run all the breathers into there, Why would you want oil fumes to be sent back to carbs anyway. As it lowers your fuels octane rating ???? Beckers "beckers" 27888... MORE
BECKERS states (in part).. "....it lowers fuel octane anyway" Yeah, this is true and a tough one to call (except in a high compression motor or when higher octanes are available at reasonable cost) against crankcase evacuation of vapors/pressures with respect to oil being forced passed seals or out the rear scroll "seal". But it's basically why I run "vented" instead of "evacuated", the thought of introducing oil (in any amount) into the combustion process "going against the grain" personally, though there are cases (Judson and to a lesser extent, Shorrocks applications) where this comes with the territory so... MORE
Thanks to all the "start-up" advice, the initial run-in went without a hitch. But a strange problem cropped up. Engine is a fresh high compression 1275 with PCV only. It would run very well for the first few minutes, and then start to belch smoke the likes of which few could imagine. It would do this for a couple minutes, then run normal again. Also, I could not get it to idle below 1200 rpm despite the fact that the carbs were fresh and were properly set up. With throttles CLOSED it still idled at about 1200. After doing... MORE
Paul, Yes, there is a proper way to break in your engine. The first 20 min will tell if your engine will live a long life or die at an early age. Lots of people have differant ideas on how to run it in for the first 1000 miles. I will tell you how I do it at work and what I reccomend to my customers. When we go to start up a new one we always go through the same check list. All fluids up to specs. Gravity fill the oil cooler if installed. Make sure the fuel... MORE
I need help. Here's what happened. Began restoration about 10 years ago. Thought it would go faster than it did, so early on I had the engine done. It was built by Dave Tabor of Comptune, the guys who built all the SCCA champ 1275 motors. Anyway, I told Dave I wanted a 1967 street spec high compression engine. I know he used a factory crank and cam. I believe he used aftermarket pistons that he preferred with a compression of about 8.9 to 1. He used a factory non-emission head, redone to run unleaded. Job was completed many... MORE
Duncan wrote I did consider hooking up a block from the roof beams in the garage but the better half was terrified I would damage the new roof....Put her foot down about that one :-) Thats how I did it. Removed the bonnet, jacked the car up onto rar ramps at the front . A couple of short ropes around the engine (removed the alternator manifold / carbs and starter first)Used a block and tackle with the load over spead between 3 beams . Took the weight of the engine with the block and tackle then jacked the car... MORE
the jets wear first; because the needle is sliding up and down, all it's wear is spread over it's length, but the jet wear is concentrated at the top. The actual wear rate is minuscule - I don't know if they were the originals, but I couldn't measure the wear on mine when I rebuilt them at 106,000 miles! David "David Jacobs" 27551... MORE
Thanks, David.... I know nothing about the later spring- loaded carbs considering I never used them. Never like the idea of the needle running up against the jet...something about this that goes "against the grain" so to speak, despite the fact they meter fuel more precisely (or so I read). But, if you couldn't measure the wear at 106K, I wonder why they bother talking about it in books? Very strange 'cause that's pretty damn miniscule wear they're talkin' about. :) The latest Spridget I ever owned was a '74 who's engine came with emissions carbs but "fixed" needles.... MORE
Hi Rich... Bob Gardner and Jim Curtice give sound advice in your case however, let's look a little deeper into Jim's advice, after checking the "easier" Bob's advice first, 'cause if he's correct and your throttle cable is hanging up in it's fitting in the heat shield, then the problem is "sol-ved" and we need look no further (maybe!:). The chokes on SU's are mechanical. Gum is not usually strong enough to overpower the mechanical advantage of a cable operated choke, assuming the cable isn't way out of shape, though of course anything is possible. If the butterflies are... MORE
Duncan You're most welcome, I'm just sorry I can't be of more help. I have quite a lot of old SU literature here, courtesy of an old 'motor-racing' friend of mine who many years ago had a tuning shop, but as many of us do, never threw anything out! He's now passed most of that information onto me now, I have a whole host of information relating to Solex carbs! If I do come across anything else that may be of interest to you, naturally I'll let you know. It is an interesting question though, if the Carbs were... MORE
Chris That 'vision in green' looks far too nice for you, I thought you were looking for one that needed a little work? ;) Seriously though it looks good, nice straight body, nice bright shiny paintwork, sills painted the correct colour black this time, wire wheels look in good condition, useful extras - boot rack and roll over bar and most importantly it looks like it been cared for and looked after. I'd question the total mileage of 14,000 miles, or is that the mileage on the new unleaded reconditioned engine? The seller is also throwing in a new... MORE
Thanks David that info confirms what I was thinking on the data I could fin d. Nigel=E2=80=99s link let me compare part numbers Duncan _____ From: davidj@... [mailto: davidj@... ] Sent: Wednesday, December 10, 2003 2:42 PM To: midgetsprite@yahoogroups.com Subject: Re: [midgetsprite] Re: SU Question the AUD328 is a 'ventilated' type ie has the angled ports coming off the side to connect to the crankcase ventilation system and also has a bias sprung needle (no centering required). The other two are non-ventilated and use the original style needle. I'm not sure of the detail differences between AUD136 and AUD266,... MORE
From: amukdigiphoto [mailto: amukdigiphoto@... ] Sent: Wednesday, December 10, 2003 5:27 PM To: midgetsprite@yahoogroups.com Subject: [midgetsprite] Re: SU Question Duncan You're most welcome, I'm just sorry I can't be of more help. I have quite a lot of old SU literature here, courtesy of an old 'motor-racing' friend of mine who many years ago had a tuning shop, but as many of us do, never threw anything out! He's now passed most of that information onto me now, I have a whole host of information relating to Solex carbs! If I do come across anything else that may be... MORE
the AUD328 is a 'ventilated' type ie has the angled ports coming off the side to connect to the crankcase ventilation system and also has a bias sprung needle (no centering required). The other two are non-ventilated and use the original style needle. I'm not sure of the detail differences between AUD136 and AUD266, but I'm pretty sure they will be functionally interchangeable.(Incidentally, for a given size of SU, the jets will be the same diameter across the whole range) Regards David 27446... MORE
