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Charlie, These little heaters aren't great in very cold climates, but just in case, do you know about the manual flaps in the footwells that control how much air enters the cockpit and the shutoff valve on the cylinder head? Gerard "gerardchateau" 7818... MORE
The trunking has two effects: - it increases the airflow when the heater motor isn't running, as the 'mouth' of the trunking is right behind the front of the car where all the air is flowing in. I suspect it doesn't effect airflow rate a lot when the motor is running. - it stops under bonnet fumes / smells entering the airflow into the passenger area. Unless the matrix is leaking you should be able to make it as good as new. You will beed to do an internal flush and remove any debris from the matrix-fins (carefully) to... MORE
A previous post on heaters got me thinking about my own recent cold or freezing mornings. Is there a way of improving the heater output? When I bought the car there was some trunking from near the radiator to the inlet of the heater. This broke apart some time ago, and I haven't got around to replacing it yet. Does this have a significant effect on the flow of air at speed? How easy is it to take apart the heater box and clean or replace the matrix? Can you upgrade the fan or the motor? Any thoughts or... MORE
I wonder if anyone has pictures of a Mk2 Midget 1098 (GAN 3 ?) engine bay (right-hand drive) that could be posted to the Group. Mine has a few bits missing, but also some of the wires/pipes are not stuck down or routed properly, so I have no way of knowing what fixings are needed. Also, the bracket for the heater motor, which I got 'mail order', doesn't seem to be the right one - it places the motor too far to the right, so it clashes with the 'air-box'. At the moment I'm not able to take it... MORE
I have just removed, cleaned, and painted the Heater unit in my 76 Midget. Upon setting it back in place in the vehicle, I notice that the exhaust port (on the bottom of the unit) does not sit flush against the hole that feeds heat into the car. It seems to be a U-channel, with 3 screws on the front flange, 3 on the back, but both ends are open. Is there a reason it is designed that way? It seems that this allows hot air to blow into the engine compartment and engine compartment odors to be sucked... MORE
Tim, Two ways to go. Run a white wire from the switched side of the fuse block along your main harness to the boot and through a small grommeted hole there. you will need to cut your fuel line if it's one piece there (and it likely is). You could also use a fuel pumpp in the engine bay which would simplify the wiring and fuel line modifications. There are several fuel pumps you could use in the engine bay including an SU designed for firewall mounting in the Morris Minor. On my '72 Midget, which had an underboot... MORE
Hello Folks I own a 1971 MG Midget 1275 GAN 5 UB 94654 G I was wondering Is there a fuel filter on my car? I have looked up and down on the car to see were it would be but with no success. Does anyone know if they were outfitted and were it would be located on the car? Thanks to all Jason "Jason Gross" 7579... MORE
Depends on the size of pipe you use. On my 1380 I run the front timing chain cover breather linked to the front of the rocker cover then a larger bore (approx 3/4") pipe to the catch tank. It works on my engine - though I do keep it fresh with regular rebuilds. If the rings started to blow a bit I guess it might be marginal. Some racers seem to run breathers from every orifice which indicates to me that they should rebuild their engines more frequently... On a standard engine 1 breather should be fine. J "jamesbilsland"... MORE
Hi James, LOL, if he flogs the Aston then I can't inherit it !! Had considered this but want to try and achieve a "minimalist" look in the engine bay as opposed to the cats' cradle that it resembles now! Have come to the conclusion that I'll fit an oil breather filter direct to the rocker cover and then machine some plugs for the manifold, if I seal them in with something mild like thread lock I'll hopefully be able to get them out again if I ever need to........ AW "Andrew Worley @ Mi-King" 7520... MORE
A A neat way to do this is to run a breather pipe from the rocker cover vent to a fabricated aluminium catch tank which can be fitted to the panel on top of the passenger footwell (you can get them from Demon Tweeks). You then run the K&N oil breather filter on the catch tank. If you use braided oil hose and aeroquip ends it looks dead good (although its not a cheap set up)... (You could always get the old man to flog the Aston). Running oil fumes into the induction system is not a good plan... MORE
I have a 1976 Midget that had a Stromberg carb in poor condition (and rebuilding it didn't help much, it was missing some parts.) Until yesturday, I was going to purchase a New Weber Downdraft conversion kit for $400 and use my stock exhaust manifold. Today, I have come across a used Weber Sidedraft Carb, w/ manifold, plus a Pacesetter performance exhaust headers. I have been told that the Carb is in good condition and I can get everything (including shipping) for $420. I am not sure if I would be better off with a new downdraft and my... MORE
Hi Gerard, thanks for taking the time to reply however the engine is the 1500 ('75 1500), I intend not to 100% block the vent but to fit a small pancake filter so vent may still breath even though not subject to an actual vacuum from the manifold anymore. TTFN, AW "Andrew Worley @ Mi-King" 7484... MORE
Whilst we're on the subject of carbs etc would anyone be able to answer the following; I wish to ditch the take off from the rocker cover that then splits via the T-piece and plugs into the inlet manifold. Number of reasons being that the hoses are in a state and are cracked and crazed, aren't clamped at any point and I'm sure aren't helping therefore to maintain a constant mix/tune. Add to this the fact that I am also trying to "de-clutter" the engine bay. I propose to fit the cover take off with a small pancake filter,... MORE
Hi Tim I also have a 66 but I have a good 30mm gap between the tail pipe and bumper (even though the tail pipe is angled upwards). I put the complete system on about a year ago, whole thing only cost about ?30 (from the B-Hive) and was easy to fit, so it's provably not worth paying to have yours modified. My advice would be to check the brackets, there should be one attached to the rear box and another one forward of the rear box near the spring hanger. If the bracket near the spring hanger is... MORE
Dear Bree, Wow, you must be setting at the computer right at this moment, you replied to my message so fast. I spent one of the strangest several hours of my life (and I have had some very strange times), in Sheffeld Texas about 30 years ago. My wife (former) and two sons were on a round the country camping trip and I stopped there to get gas and some beer. It is a dry county and the woman in the station told me it was dry because people there were too mean and when they drank they shot... MORE
I'm joining this one late and I've not read all the posts but.... You should be able to get the standard system to fit without rubbing. Try rotating some of the joins to make the pipe and boc alter their orientations. Fitting a sprite exhaust pipe is an art I'm still learning after 15 years of ownership. Jeremy '63 mk2 Sprite "Jeremy Cogman" 7386... MORE
William This is a balancing hole allowing the piston to rise and fall correctly and must be clear. If the rear of the air filter box is put on upside down it obscures the hole and the car will not run right like what happend to my car when I got it. Terry "Terry Isherwood" 7359... MORE
Yes. With the port restricted, when you 'floor it' the carburettor would rise slowly due to the restricted flow of air into the space below the piston. Varying the weight of oil in the damper would be the correct way to achieve the same effect. The spring controls how far the piston lifts due to airflow through the carb. Fitting a stronger spring will only ensure that at a given airflow the piston sits lower than it should. For example, if you bored out your engine, you may find that the piston hits the top of its travel at,... MORE
Bill B- That hole is a breather for the underside of the carburettor piston. If you restrict it too much, it would cause problems similar to those you get if you have thick oil in the dashpot. In practice, the air cleaner never really lines up with the hole very well, restricting it by as much as half. I guess it wouldnt hurt to install a tube to act as a dowel- although if it were me, I'd enlarge the hole slightly and use thin-wall stainless tube, so as to restrict teh opening as little as possible. A breather... MORE
Hi Group ! The exhaust on my '66 (single-rear-bumper) midget presses against the underside of the rear bumper where it exits underneath the rear valance. As I drive along bumpy roads there is movement which causes a scraping/squeaking noise which is very embarrassing ! This appears to be because the tailpipe turns upward as it exits the rear silencer box. I was wondering if the car is perhaps fitted with a split-bumper exhaust in error (I bought the car with the rear bumper not fitted). If I had split-bumpers it would presumably appear somewhere near the edge of the... MORE
Bill B- No problem with the Archives, Bill; figured it out for myself. Joined! Hit the nail on the head with that port in the SU! Been years since I worked with these carbs., more used to working with Weber DCOE's and lately, Holley single- barrel on my Judson blower. Found Holley a bear to tune with respect to "progression" and have decided to convert Judson blower to an SU HIF44 which I just recieved from Advanced Performance Technology (aptfast). Need to brush up on my SU knowledge; Grant B. sure sounds like he knows his stuff here. Even... MORE
TO: Grant B. (Explanation of SU principals) It makes absolutely perfect sense. Read you loud and clear! Now, let's see if I can use this information in practical terms which will show whether I understand the prinicipal well enough to apply them to my application. So, for a supercharged (Judson, fr'instance) engine, you would probably lean toward a pretty heavy spring to begin with, considering the engine's potential breathing ability with the blower. And considering the potential for rate of change (pretty rapid with the blower) a pretty heavy oil (say 20w-50?) would probably be a good weight to... MORE
TO: Grant Bowyer (Thankyou So, that's what that port is for. By restricting same, the carb would then probably run richer on acceleration? Hmmmm! Might be a way to "tune" progression though I am sure a "heavier" spring or heavier weight oil in the damper would be the "correct" way to go in this respect. Still; interesting. Thank you. Cap'n. Bob '61 :{) PilotRob@... 7320... MORE
Bill- Assuming I have the correct hole I believe you are talking about: This "extra" hole should line up with a port (hole) of similiar size on the flange area on the front of the carb which needs to "vent" to atmosphere. The carb will not function in a satisfactory manner (I am told) if this hole is blocked. That is as much as I know, because I am just getting back into SU carbs. and do not know the technical reason for this, yet. I shall await further posts in response to your's to learn more from others... MORE
Yup they do although they are cast into the backplate so tuning/swapping them is not an option, on a previous Midge I ground these off so the back plate was flat and then used stubs but in my lazy old age I'm not that fussy. I have a feeling that you cannot get these filters new anymore but I may be wrong.......... AW '75 1500 UK "Andrew Worley @ Mi-King" 7247... MORE
