MGB Register Forum

If its on the road it has to be taxed. Its just that the fee is zero pounds if its historic.

Well we've got both although the TF is on SORN now until April. We went out in the B on Friday as the roads were dry with very little salt in evidence. The B is exempt from Tax and MOT so can be used anytime. We use the TF for longer MG excursions as it has better performance, is more comfortable an...

Hello again Geoff, After all this dialogue, I thought it would be a good idea to look what the workshop manual says about oil pressure. Perhaps I should have done this before. The factory manual says, 'oil pressure should not drop below 50 psi on the gauge at normal road speeds, whilst approximately...

Hi Geoff, You are quite right that the shim should increase your oil pressure. I Googled 'MGB oil pressure relief valve' and up came another John Twist you tube video :- https://www.youtube.com/watch?v=ZMvqYVlm5jU I dont agree with John that you should add washers under the cap. There should be a 4 ...

I'm not a tribologist but I used to do oil film thickness calculations to size engine bearings using proprietary software. I could give you some bulsh*t about Booker's mobility solution to Reynolds equations and Okvirks short bearing approximation but frankly I never understood any of that. The gall...

Yes, I think your oil pressure is a bit low but many B series engines survive for years like that. Assuming your crank isn't worn you can change your big end shells and three of the main bearings in situ by just removing the sump. I ran the engine mounting nuts to the end of their threads then jacke...

I've been using Moris's Golden film engine oil which is cheap from TFM, the last I bought was £11 for 5 litres but it's gone up 7 quid now. It's said to have 700 ppm ZDDP (zinc) which is one on the lower classic 20W50 oils. (Who knows how much is enough) I've been supplementing this with STP which i...

I changed the rear springs of my B about 15 years ago. They have flattened a bit, so we are somewhat tail down when laden with a full tank. The car sits dead level when empty. I have fitted rubber bumper front springs (without the spacer) though to avoid sleeping policemen damaging my mid silencer. ...

Are you sure your timing isn't too retarded. Seems you have done the other obvious thing and flushed the radiator. Have you checked the thermostat?

The top end of the B series is nearly impossible to get quiet (well not as much as you would like). I've renewed everything in my valvetrain - camshaft, followers, pushrods and rockershaft) and it still ticks. It's a bit quieter when it is stonking hot. I do the exhaust clearances fairly tight on th...