There is some discussion here on the US. MG forum, sounds just like your engine:

https://www.mgexp.com/forum/mgb-and-gt- ... h.3856189/

Ian F

Ray, some initial results as far as I can tell: 1. It is an MGB engine as you had found.😊😊 2. From a later rubber bumper MGB, probably 1976 onwards. 3. The letter "F" indicates twin carbs, so possibly if the tag is original, this may mean it was a single carb engine destined for somewhere with stric...

Thanks Ray. I will have a trawl through my records and see what I can find.

Ian F

Thanks for the link George. There is one error which I picked up immediately, so perhaps there may be more?
The MK1 Midget also had a 948cc engine initially, coded 9CG. I know because I have one!

Ian F

Ray. I think you need to be a little more specific in your question. I guess you are talking about MGBs and the B series engines? The first thing to say is that the specific engine number is listed on the relevant British Motor Heritage certificate for each MGB. I don't know whether it is possible t...

I would agree with Mike for the most part - with one exception. I have '72 BGT (with a spare axle from Mike I think?). I have had this from 1978 so have an early Haynes manual which covers the car well. I also have the Haynes MGB 50th Anniversary workshop manual which is definitely a little sketchy ...

P.s. it's always worth trying some of the non MG suppliers for parts, usually just service parts, but the quality can be better,
Ian F

Very good Mike, thanks for your efforts. I had a clutch for my midget which lasted for days. I had a full refund and managed to get one from one of the reputable manufacturers ( Sachs I think) which has proved reliable.

Ian F

The parts are probably all made to the same pattern in the same factory. I often suspect that Moss supplies parts to other retailers. I have had some very poor parts from Moss, but to give them their due, they have always refunded without argument. I remain a regular customer, knowing that they have...

Hi David. I use the red rubber brake grease when assembling brake parts - safe to use where "rubber" is present. It can make parts a bit "sticky" and some folk just use brake fluid as a lubricant. I really don't like getting brake fluid on my hands though - I understand it is absorbed through the sk...