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First - will someone who has experience resolving off-idle stumble with a Weber DGV on a 1275 please post me off-list. General parameters: 1275, std bore, stock cam, head milled, Crane optical ignition, header. Use an aftermarket electric fuel pump with a pressure regulator set to 3.5 pounds. Engine has never idled this well in the 33 years I've owned it (even as low as 700rpm), idle set at 900rpm, performance above 2000 rpm is excellent. It just stumbles in the 1500 - 1700 rpm range when you hit the gas. Makes double- clutching a bit dicey. Have done... MORE
Always go for the easy and obvious solution first. Backfiring though the exhaust and its running to rich; Through the carb and its running too lean. Since you suspected exhaust I'd set the mixture a bit leaner. good luck Ryan '76 "ryanmill1" 24135... MORE
Hello all, new to the list, new to Midgets. Question: I've got a '77 that backfires between shifts under heavy acceleration. I know why; there's excess fuel being dumped into the exhaust between shifts and detonating; I just don't know the cause. The 2 possible causes I've come up with is the air pump is supplying air to the exhaust when it shouldn't (bad valve?) or the non stock exhaust the car has (just 1 tiny Walker muffler) is allowing the fuel laden exhaust to reach air before sufficiently cooled. Which of these are more plausible, or is there... MORE
G'day Brad The valve stem diameters are the same. You can squeeze 1275cc valves into a 1098cc head (12G295) if you want to, but you will need to open the combustion chamber up quite a bit to allow gas flow around the valve, or you are defeating the purpose. Really no great advantage. 1275cc head will fit on 1098cc block, but if you have a high lift cam, and/or 1.5:1 rockers, the exhaust valves will hit the top of the block face. You will need to machine a crescent out of the block, up to .100" deep (I just... MORE
I need the top bar that secures the intake and exhaust mechnisim together. Thank You. I will post a picture of my engine later. "ooohaynow1" 24081... MORE
Cap'n Bob, Appreciate the insight. The last 1275 I drove was a 73 back in 1981. Didn't know jack about such cars so comparison's are impossible. I was planning to lower the rear of the car with a block arrangement that raises the rear axle where it attaches to the spring. Since fitting the new wheels and tires I'm not so sure about this. I had to do some sugery on the rear to eliminate the "tuck-in" flange for clearance. The front wheels were even worse. Had to raise the wheel cutout an inch. Will probably flair them. Do... MORE
Well, Rob... Vicky B. offers a rear spring lowering kit at a very reasonable price so you wouldn't be out much if this approach didn't work. I think the Ford Sierra 5 speed is what Guy Weller has used or is currently using....and.... .....refering to fellow spritester Daniel's handy, dandy informative book, we find (Pg. 63) that "Frontline Spridget, Ltd. has a sseparate kit, with special adapter plate that allows conversion to the Ford" Sierra 5 speed gearbox. On Pg. 144 Daniel further kindly provides: http://www.mgcars.org.uk/frontine Also, if the lowering blocks don't work you might try Motobuild, Ltd. for... MORE
I have owned both. The 1500 was more torquey but rattled like a bag of nails when the revs climbed. It had a 7/8" front bar that controlled excessive oversteer and could be driven through corners quite nicely so long as you didn't loose nerve and lift off. I drove with and without the bumbers and the only noticable difference was it felt more "lively" with them off. It was definately faster. The 1275 is without a doubt the nicer engine. When the revs climb it roars through the K & N and howls at over 5000 throgh the... MORE
Things at work have finally settled down from the past few months. We have gotten a second weekend off in a row, and I was able to get the mechanic from the truck shop to come over to my house this a.m. at 8:30. Some of you know, the 68 Sprite locked itself into first gear a while ago. It also had the original engine it rolled out of the factory with still in it, all smoking and original. If I am to repair the tranny, I will replace the engine, if only temporarily, to fix the original one.... MORE
Guy Weller writes (in part).."I was trying to resist this as definitely not LCB..." LCB? (Scratching head!) LongCenterBranch?? Purple & Turtle? This is very confusing! :) Cap'n. Bob '60 :{) PilotRob@... 23981... MORE
Don There were quite a few modifications made to the Rubber Bumper (RB) Midget over and above the obvious ones, which im sure everyone will point out to you. I'm sure you're aware of the history behind these modifcations, but to recap the RB Midget came about to meet the ever more stringent emission and control regulations imposed in the relatively large North American Market. It was also felt at that time that the A Series engine had pretty much reached the end of it's useful development cycle and as Triumph were then part of the BL stable, it's... MORE
A few months ago there was a tool on ebay for installing this nasty little circlip. It looked like it threaded into where the hydraulic pipe goes on the cylinder and then another threaded ring compressed the circlip until it popped into place. I missed out on the ebay one but would now like to get myself one, preferably in the UK but if you know where they are available in the US then let me know that too. Cheers Jeremy "Jeremy Cogman" 23914... MORE
Actually . . . no . . . but blowing it out cleared up the obstruction and I have had this occur on another Midget. It's hard to blow on a small pipes on a float chamber lid as hard as you can and look for a small flak flying through the air Bob. I was seeing little white stars instead :-) Don "Don May" 23901... MORE
The phone rang at 7:30 am Sunday morning "I'm stranded in Angles Camp, Jr. died," Jr. the name he gave the 63 Midget I sold him. "I just need a around town car." He said when he bought it. He had owned a Midget before and I was confidant I was not selling to an innocent in the ways of classic British cars. I had made clear that since I retrieved it from a carpentry work shop where it sat on blocks for twenty years and brought it back to life that I had not driven it over five... MORE
Surely that should be: - To the optimist, the glass is half full. To the accountant, the glass is twice as big as it needs to be. To the engineer, the pipe filling it is not big enough, surely? :-) :-) R. "Roger Stinson" 23873... MORE
Driving is driving, music is music . . . I do not like to mix experiences or my attention. Driving is a love affair between human, machine, and the road. I have a wonderful audio system at home and a recliner chair to sit in while I listen to it. Personally I do not like to talk while driving any more than I would in a movie. Goodness folks! We are driving a "English sports car" not a concert hall on wheels. :-) But . . . to each his own, don't want to become a politically correct fascist... MORE
Dummy Me!! :) The vented/filtered oil filler cap is also a "restrictor" in the manifold mounted PCV valve, Jim!! Sorry for my error! :) Cap'n. Bob '60 :{) PilotRob@... 23808... MORE
Jim.... "Thanks", yourself!! :):) You either don't have a maint. manual or are not reading it, I guess. Well, no matter. :) You cannot check effective operation of the manifold mounted PCV valve by taking it apart. It is tested on a running engine at idle... if it is working correctly, the idle will increase by around 200rpm when you remove the "vented/filtered" oil cap (which you are using in accordance with your manual, right?:) For with respect to the manifold mounted stock PCV valve....there are no other restrictors in this system...IT is THE restrictor! It is also diaphragm... MORE
gztracker: How about using a stock PCV valve as shown in the manual? Or, is this part no longer available? Cap'n. Bob '60 :{) PilotRob@... 23791... MORE
Can anyone give me the description of the restrictors that I think should be in the tube from the timing case to the PCV valve. I have just rebuilt my '68 1275 engine and it is sucking enough oil through the oil seperator to go through the engine. I tried a 1/8" restrictor and had much oil out the rear seal(screw). I then put a 5/16" inch restrictor closer to the PVC valve and it seems to do much better. I have found no information other than a reference to tube and restrictor in the Hayes manual. Thanks Jim... MORE
I need radiator, exaust manifold, carburator. Please e-mail me if you know who may have these parts. ooohaynow1@... "ooohaynow1" 23709... MORE
Mark Don't do it the gauge is easy to remove the dash is not. Just undo the knurled nut at the back of the clamp and pop it out, the oil pipe union can be unscrewed from the engine or the back of the gauge (once popped out) the water temperature sender connection if it is into the rad (as mine is on the 66) can be a bit of a pig to remove without damaging the sender cable but if you are renewing the gauge this will not matter. Best of luck Dave (65 & 66 Sprites in... MORE
Don't! If there is water in it you need room for a header - for expansion - and that means all the hoses etc to give proper circulation, and you will be able to run it only for a few moments, and if there is not a header - how much money did you say you want to throw away on an unnecessary rebuild? On the other hand, why not take it apart and have a peek whilst you are there and save all the trouble and aggravation! Just a look inside the rocker cover will give you a... MORE
G'day Bill Use ordinary auto electrical wire and wrap it tightly around 1/4" pipe (or screwdriver shaft). It will become, and remain, curly. Or you can just loop the wire around the steering column 2 or 3 times, loosly. It will tighten up a bit when you turn one way, and loosen when you turn the other way, but it still works just fine. avagoodday Colin "Colin@SpriteParts" 23214... MORE
Hi guys You may have noticed I've been rather quiet regarding posts to the list lately, thats soley because I've been beavering away on the Midget restoration, and making the most of the good weather. I'll bring you up to date on where I am. I'm glad to say that about 90% of the structural welding is now complete and includes two new floorpans, two new inner and outer sills, two new inner footwell side panels, two new lower hinge repair sections and outer covers, two new lower rear inner and outer wing repair sections, localised repairs to both... MORE
