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C. "Selling A14 engine from my departed MG Midget - recent rebuild; .020- over pistons, all new valves/springs/keepers/seals - has cast iron exhaust manifold, stock intake (non-heated) - reman carb & extra carb. Has remote oil filter included. Engine was run in car for @ 500 miles, no problems. Also have '80 210 5 speed trans available; may sell as package deal. Buyer pays shipping & crating fees. $1000 as engine/trans pkg, engine alone $850. Thanks, Bryan 919/875-1509 evenings - email: determined2win@... " DLancer7676@... 22248... MORE


The scroll on the rear of the crank is an archimedes screw, like a coarse screw thread. As the crankshaft rotates, it tends to "screw" the oil back into the crankcase. The only way to stop rear crank leaks is to maintain negative crankcase pressure. All the various factory crankcase vent systems did this one way or another. On my car ('68 engine) the front cover vent hose runs to the carbs between the piston and butterfly, thus is always under slight negative pressure whenever the engine is running. To prove a point, I once rerouted this vent hose... MORE


No they'll be fine the only place you wouldn't want to use them is in a very hot area like exhaust fittings or the manifold nuts. However using them everywhere is overkill and you may come to regret it as you have to wind the nut all the way on with a spanner instead of spinning it on with your fingers then just tightening. "Jeremy Cogman" 22181... MORE


Hey.... If it's working for you, who am I to question? But it would run even better (most likely) with a little "through airflow". It's not that I think so....the factory thinks so 'cause that's the way THEY hooked up both the early and late "add on" crankcase evacuation (emissions) systems. The reason the original PCV valve "goes" and the engine begins to smoke is the wearing out of it's rubber diaphragm. It's much like the diaphragm used....well, never mind! :) When it becomes porus the effect is somewhat like your hooking up your PCV valve arrangement in reverse...the... MORE


Hi, Bill.... Ok....we don't know what sort of a rebuild job was done on the engine. Judging by the "tone" of the contents of your mail, probably not a very concientious one with respect to assembly anyway, it seems. That "scroll" rear engine area needs pretty close tolerancing as well as siliconing of the half moon gaskets back there or it will leak to one extent or another I am told, even on a new engine producing minimal blow-by. Speaking of which....what sort of shape is the engine in (mechanically speaking) in this respect? Compression, leakdown, etc.? "Blue" exhaust?... MORE


Driving my '76 midget, at above about 2500rpm, especially in higher gears (it happens before 2500, just very minor), i get a vibration, and an un-nerving "vibrating sound" that seems to be coming from up front, passenger's side. I considered tire balance, and rotated them.. no fix. I thought it might be starved of fuel at high rpm, so i changed the fuel filter, then rebuilt the carb (needed done anyway) i thought about timing advance, so i changed the vacuum line to the distributor. I'm all out of ideas, you all have any before I exhaust my wallet... MORE


Ryan.... MAYBE..... you've got something that should have clearance from something, that hasn't got clearance from something. Could it be engine to "frame", exhaust to body (even though it sounds/feels like it is coming from the pax side), tranmission to body, etc.??? Cap'n. Bob '60 :{) PilotRob@... 22114... MORE


Yes, Bob!!! You can make more backfiring noise by further leaning out the mixture beyond what it "should be", but I wouldn't recommend it!! :):) Many years ago, we used to "blast out" a muffler to get more of this, as well. "Backing-off" exhaust sounds were considered mandatory if you wanted to be considered "cool". Of course, the muffler wears out in this respect over time and use but....we didn't wanna wait! The car had to sound "cool"....today......NOW!! Find a long hill and shut off the ignition while allowing the car to go down the hill while remaining in... MORE


Yes, Bob!!! You can make more backfiring noise by further leaning out the mixture beyond what it "should be", but I wouldn't recommend it!! :):) Many years ago, we used to "blast out" a muffler to get more of this, as well. "Backing-off" exhaust sounds were considered mandatory if you wanted to be considered "cool". Of course, the muffler wears out in this respect over time and use but....we didn't wanna wait! The car had to sound "cool"....today......NOW!! Find a long hill and shut off the ignition while allowing the car to go down the hill while remaining in... MORE


Chaps.... Even with everything absolutely "spot-on" you are going to get a bit of this with a hot engine after a run so handling this through e-mail without actually hearing it (in terms of extent) and "being there" IS a bit difficult. My bet is that you would get less of this with an HIF (temperature compensated) carb., but this is just an educated (not very!) guess. I've always had at least a bit of this with every "A" or "B" series engine I've ever run, stock or "tuned", and more of it after a "run" wherein the engine... MORE


Sounds like it is running a bit weak, or that there is an air leak in the inlet manifold. Guy "Guy Weller" 22070... MORE


Hello chaps I'm hoping this isn't a problem, but here goes. We took the Sprite (1967 Mk IV) out for a run this afternoon, and we got onto some nice empty country roads in Yorkshire. Two or three times, as we approached small villages, we had to slow down from 60-70 to about 30-40. Each time, as the speed was coming down, I heard several (it varied from one to about four) flatulent sounds from the neighbourhood of the exhaust pipe, almost like backfiring. My brother (who claims to know about these things, but drives a Mustang, so there... MORE


"backfiring" Hi, Steve.... Not an uncommon occurrence at all my friend. With a new stock exhaust system you don't even hear this, unless the engine is really coming off a long high rpm blast down the highway and the engine is really hot and even then, it is so muffled you probably wouldn't hear it with a new stock system. With headers and/or a free-flow or "sport" exhaust system, you'll always here it to some extent after a long, hard run and truly warm engine. This will be probably more so with the strictly mechanical advance 23D Cooper "S"... MORE


Hi everyone, just become the proud owner of a beautiful '76 midget. Although originally from "the mother country", I now live in Savannah, Georgia, USA. This car is in amazing condition with a fully documented 33,000 miles. Trouble is, it runs like a pig! I'm hoping someone may be able to point me in the right direction. This car was originally a california car and has had all the emission stuff removed. The plugs are covered with black soot. Seems to be running very rich. The carb has been replaced with a (new looking) Weber. I noticed that the... MORE


Hi I have just joined the group and have been working on a '68 Midget since last Sept. Previously I had owed a '55 TF and a '54 TD. Having replaced my top/hood I did not find any instructions other than the recommendation that I have a top shop do it. I would be happy to correspond or talk by phone to relate what I did to get mine to fit right. My hood couldn't be returned if it had any installation holes in it (it did) even though it was 1" too narrow. When I first bought the... MORE


Bill.... "Sidebar"...... Was going to check further on the PerTronix/tach accuracy at higher rpm situation today but major accident on RT.95 along with construction on the "northern route" squelched this short trip! Tomorrow looks better (I hope!). Where a PCV valve or later "closed loop" breathing system is not employed (later post '67 system encompassing fuel system), there exists no means to evacuate crankcase pressure/vapours. David Vizard points the way in this respect in accordance with his "bible" on Series A engines. In such a case.... one must go back in time to the pre-emission "ventilation" theory. In practice,... MORE


Yes use a vented cap with the PCV system. jeremy.cogman@... 21936... MORE


Not sure about stainless exhausts either. Too hard to make a good joint that will take the punishment an early spridget exhaust gets from the road and not as nice a noise. IMHO. at least one of the bad good ideas has been taken up by MG Rover - new MG TFs come with no spare but you get a little compressor and a tin of tyre goop. Probably no worse a solution in an emergency than replacing a punctured ultra-wide, ultra-low profile tyre with a tiny space saver (and what do you do with the fat tyre you... MORE


Hi, Jens... Vented oil filler cap with the PCV valve, Jens. On the later systems in which the engine breaths through a carbon cannister, unvented. Cap'n. Bob '60 :{) PilotRob@... 21938... MORE


Hi guys! Is it correct to use a vented oil filler cap when using the PCV valve cranckcase evacuation, will this cap be a bad thing for evacuating the cranckcase? jens.maudal@... privat:32883853 mobil:90540409 "jens maudal" 21933... MORE


Hmmm. The recent discussion about silicone brake fluid has got me thinking about other bad ideas which sound good. Water wetter - it may do no harm, but it certainly does no good. Oil additives - nobody, but nobody understands oil technology better than the major oil companies, and their oils can't be improved on by pouring some magical goop in. Battery additives - same story. Fuel additives - another waste of money and possible source of harm. Tire sealant goop - can you say thump, thump? Whirligigs in the air inlet, spark intensifiers, once-a-year waxes. etc, etc. There... MORE


Nieither nor, Rob.... My feeling is you have another problem that has nothing to do with the breathing, ASUMMING both breathers & lines are freely breathing (open & clear) otherwise the catch tank would be full of oil. How much are you "losing" by the seals (sump, rear main, timing cover)? Or, are you getting "bluish" exhaust smoke indicating the engine is "using" it? Cap'n. Bob '60 :{) PilotRob@... 21879... MORE


G'day all I spent a bit of time last week fixing a Mk IIA Sprite just purchased by Duncan, a new customer. He bought it as he had always wanted a Sprite, and it was love at first sight - pretty Sky Blue, nice paint. Now Duncan is 6'3" tall, and in his early fourties. The Sprite didn't run - flat battery, master cylinder just been rebuilt and brakes/clutch not bled yet, no registration, hadn't been driven for 3 years. So he bought it to me to get it repaired and registered. Well by the time we changed the... MORE


Anyone know where i can get a webber dcoe /manifold to fit a frog? Regards David "scuderiablkhole" 21861... MORE


Max I lay the hood on a flat surface inside up I then fold the panel containing the rear windows inwards so the inside of the window rests on the inside of the roof I then fold the rear side windows inwards being careful to fold the hood fabric between the windows and not the window. Next I roll the hood up from the front end so the header rail (with the two over centre clamps tucked in) finishes up in the middle with the hood rolled around it and the outside of the hood on the outside of... MORE