Search found 98 matches
The resistor is in series with the coil so drops the voltage the coil sees to a nominal 6V. When cranking 12V is fed from the starter motor so in effect you are running a 6V coil at 12 V which is supposed to give a better spark. I think it just ensures a good spark if your battery is on the flat side.
I helped my friend fit a 123 distributor to his mildly tuned MGB.(his engine is closest to a 1972 18V engine and has the larger inlet valves) He's tickled pink with it. We set it to curve 2 which is the 40897 advance curve standard for pre 1973 cars. Peter Burgess says in his book that this curve is...
- Wed May 27, 2020 11:19 am
- Forum: MGB Technical
- Topic: Spitting through HS4 carb
- Replies: 29
- Views: 5204
I believe the default setting for the position of the jet is 0.060" or 1.6 mm down from the bridge. I find that although this might not be the optimum setting for every engine they normally run OK at this. Getting the mixture right on both carbs is the trickiest adjustment, each carb should be simil...
- Wed May 20, 2020 11:57 am
- Forum: MGB Technical
- Topic: oil draining back if left for a few days
- Replies: 6
- Views: 1468
I had an issue with oil pressure when my engine had been rebuilt. I had been using Mann filters with no problem but it was rebuilt with a Unipart. I switched back again and the problem went away. It turned out that the steel tube in side the filter was sticking up too much and fouling the relief val...
The Midland Centre has a theme running on its Facebook group called 'On the drive it day'. Please feel free to add piccies of your car if you are in our region. Search for MG Car Club Midland Centre group and you should find it. May be of interest to all MG enthusiasts. Here's my photo On the drive ...
I've always connected my Gunson's autoranger meter positive to the bottom fuse, negative to a headstud on the engine. There's a third wire which goes to the coil on the side that leads to the distributor. Its always worked fine on my 71 MGB. In fact on many cars in the last 25 years. I've just conve...
- Thu Mar 12, 2020 4:14 pm
- Forum: MGB General
- Topic: Not MGB related but just a sign of the times.....
- Replies: 3
- Views: 1794
I once saw a MX5 with a sticker 'No hairdressing products left in this vehicle overnight'
If the axle has half shafts in then you could do one turn on the halfshaft (remembering to lock the other one) and see how many turns the input flange does. With the banjo type it looks like you would have to remove the halfshafts to get it apart and even then you might not be able to see the pinion...