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Don... The smog pump injects air into the exhaust after the combustion process so no re-tuning needed. Whatever horsepower is lost from the engine (5?) driving the pump is returned to the driveline (yhaay!). Doesn't sound like much but as a percentage of what the engine normally produces it ain't bad, is it? :) We cut the manifold off at the fittings to the cylinder head and retained these, closing them shut with a drop of lead or solder...I forget what we used it was so long ago. Alternatively, you can find Allen screw/ plugs of the proper size... MORE
G'day Robert A mate of mine did just as you suggest. He bought a 12 volt hair dryer, reversed the wiring to make it suck not blow, mounted it neatly in an aluminium can with lots of vents, and collected it to the engine breather outlets. Worked beautifully - no more leaks. And the fan didn't seem to mind ingesting all those oil fumes! avagoodday Colin "Colin@SpriteParts" 22325... MORE
G'day all The clutch line is the same as the brake line. And use plated steel fittings. Now fuel pressure - that's an interesting topic to raise. SU carbies were designed to run with 2.5 to 3 psi of fuel pressure, delivered as it happens via an SU fuel pump. With any more than 3 psi, the fuel can force it's way past the needle and seat in the carbies, fill the float bowl and flood the engine. You might notice the carby flooding, and change the needle and seat to solve the problem, but it is likely that... MORE
"What about you, Cap'n Bob...." Right!! "What about Bob?"....Bob? I know just enough about everything to be dangerously ignornant of the severe mal-consequences of being in such a state!! Thus far, anyway! :) Talk about Peter Pan and "Never, never land"!! :):):) Fans for pulling heated air and vapors out of anything (including the engine compartment and crankcase) are just too intelligent to imagine!! In every respect, this is seems a great idea but, you better have a high capacity battery and/or alternator! Just kidding, Bob. Exhaust fans make perfect sense in all respects though with crankcase fumes, the... MORE
Anyone have a home cure for a gas tank that has Rust/Gunk in it, short of sending it out to be proffessional cleaned and coated inside? Thank you, Bill French Hilton Head "73 RWA in Cincinnati PS. With the help of members I found that 1275 Starter at Advance Auto/Worldwide Auto parts. Who would have thourht they would still carry that item. DAH frenchww@... 22301... MORE
Bill B. writes, in part..."Situationally unaware? Age 15! Same thing...:)" Exactly....and should the normal housewife have to worry or concern herself with a crankcase explosion as she ferry's the kids around or goes about her daily chores in keeping a household going? I think not! Chris's point is a valid one and well taken regarding a PCV system, the latter part of his post notwithstanding with respect to a change in induction method replete with non-standard carb. It also keeps the oil more "clean" with respect to it's "useful life" as defined by "contamination". There is always contamination of... MORE
Guy... Those tubes on the carb. which allow crankcase gases into the intake system from the cannister on the timing cover are in and of themselves, "graduated orifices" for a crankcase evacuation. Cap'n. Bob '60 :{) PilotRob@... 22298... MORE
Hi In Essex UK, someone has just broken a 1500 midget and has left over engine, rear axel with springs and propshaft and shocks, boot lid (good) plus other bits to be decided when rebuild finished. Condition unknown but reasonably priced. You collect !!!!! Contact me off list. PS this guy bought 2 1500 midgets, one absolutley shot, more rust than metal and nearly complete, the other is restorable, the bottom foot does not exist - yet. Terry "terry.isherwood" 22281... MORE
Thanks for all the help. my only remaining question is how difficult is the replacement of the thrust washers? I assume I drop the oil pan, slide the crank back to where it belongs, remove the rear main bearing cap/holder, and replace the thrust washers. Is there anything else I should watch out for? Are the old washers a bear to remove? Conversely, are the new ones a bear to install, or do they just rotate around the crank? You guys are so much help... George "chuibuddy" 22274... MORE
I have some pics of my engine before I took the piece of junk out. I don't know if any will help but you van look. Dave Bluffton, Ohio http://web.thewavz.com/fire/Pictures/MGB%20Pics/ David & Kay Maroscher 22277... MORE
Hello everyone, I am just about to remove the cylinder head from my Sprite IV engine. I am not an engine tech guru, and I am following instructions from manual(s) (plus my little personal experience). In the Haynes Workshop manual and in the Haynes Restoration manual the method for loosening the cylinder head nuts is to start from the outside nuts (inc. the rocker assesmbly nuts) and work in removing diagonally opposite nuts in turn. In the official Sprite and Midget workshop manual and in the MG Midget and AH Sprite book by J. Tyler exactly the opposite is... MORE
Chris, Interesting comments. The standard UK set-up has no pcv valve, the hoses just connect direct to vent fittings on the carb barrels. I still feel that the term crankcase "vent" is wrong. It sort of implies that the purpose is to allow excess gasses from the crancase to find their way out. In reality, the system is a much more active "extraction" process, whereby the induction system positively pulls gasses out, creating a negative crancase pressure. Guy "Guy Weller" 22260... MORE
okay: I went and looked at the pulley on the front, and there appears to be around 1/8 to 1/4" of fresh shaft sticking out of the block. my question now is, how do i get the crank back into place, and how do i know if I need oversize thrust washers? George "chuibuddy" 22261... MORE
Hi guys I was originally intending to replace my brake and fuel lines with copper, but I've recently read that copper can become brittle through vibration. I'd like something more durable than the original steel pipes, and understand that Cupro-Nickel pipes are a good replacement over the original steel ones, albeit more expensive than copper or steel. Any thoughts on this? I noticed that the fuel pipe was a larger bore size than the brake pipe which I assume is 3/16", what size then is the fuel line - 1/4" ? And finally does anyone know what thread size... MORE
Hello all: I have removed the engine from my midget and re-sealed/gasketed it. I took photos of the timing cover bolts and the particular arrangement of the stud s and standoffs for the air pump/alternator mounts=85and somehow lost them. So now I am trying to put this part back together and want ot get it done right. Would one of you be so kind as to snap a few digital photos of the front left hand (alternator side) of the engine, down where the brackets and stud s attach=E9 to the block and the timing cover? Please send =91em... MORE
Triumph 1500 engine from a Spitfire fits really well. This is a tuneable and strong engine with good parts availability and knowledge base. Or you could fit an Austin A-series engine as fitted to many vehicles of the period and fits very well. Even stronger and with more tuning bits that you could use in a lifetime. :) jeremy.cogman@... 22244... MORE
The oil fumes present in the vented gases will reduce your effective octane slightly making the engine slightly more inclined to pink. jeremy.cogman@... 22243... MORE
Chris... All of this is true but, I wonder how all those cars prior to PCV systems ever survived, including my much loved and long lasting VW Bug with it's long-lasting, "ventilated" GEX 1600 engine! Not to mention my beautifully running old 1098 that came in my BE all those other pre-PCV equipped cars I've owned including those two great MGA's of yesteryear, who's later varient got the add-on (not "integral" to engine spec. as in modern applications) system. I mean for sure, somebody should have told Henry Ford! :) Do you know how much gasoline you'd have to... MORE
"The oil fumes present in the vented (crankcase) gases...." Yes, this can be a "damned it you do, damed if you don't" sorta thing. That rear engine oil leak can become a real PITA though, and I can understand owners who's engines incorporate the stock "scroll" seal wanting to rid themselves of the problem and general mess. Back when I ran the normal intake manifold mounted PCV valve fed off the oil separator on my '67 "B", we had readily available at the corner pump decent leaded octanes and I never would have given this a thought. Matter of... MORE
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
Hi, Colin... Beauty is indeed in the eye of the beholder....never liked the design but, it is "unique" and lighter than the standard car. Probably goes pretty well accordingly with even a stock 1275! :) Cap'n. Bob '60 :{) PilotRob@... 22246... 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
I was wondering if anyone out there knows of any good books or websites on changing engines in Midgets. Also does anyone know of another engine besides the Datson 210 engine that fits in the 75 Miget?? Having trouble finding one of those. Thanks, From Ohio David David & Kay Maroscher 22234... MORE
will do. That thrust bearing thread makes me nervous, though. them for coming from. the At least it might "ryanmill1" 22223... MORE
LOL !! I knew I could rely on you Bob. Anyway, I am a reformed character. I saw the error of my ways and sold my 1500 about 2 years ago. Now I drive a 1340 A series! Guy "Guy Weller" 22218... MORE
