Hi Rorie did you managed to fine any alternative to this G-Valve NRC8215?

Hi I blanked off rear brake brake line from MC and straight away brake peddle becomes stronger not sinking anymore so the rear brakes G-Valve is faulty part number NRC8215. Now the trouble is it’s not available any longer. What would be the alternative to this G-Valve please?

Thanks for your advice, I tried holding the brakes but no luck but another trick has worked as I tried to describe below

Hi I can yes, or lock it with a long piece of wood. How long do I have to hold it for? Someone else mentioned that G-valve can cause this issue NRC8215?

Hi I have just took the MC out and measured the inside seat depth where the push rod hits. It’s exactly the same as the old MC. I have refitted the MC and bleed the brakes. Brakes are still soft and brakes locks about 2 inches away from foot rest. Not sure what to do. 😢

Hi I think it had the brake disc conversion by previous owner. Master cylinder is old type with only 2 brake pipes connection. Size and shape of the Master cylinder's looks the same and it fitted without any problem. But I don't know if MC is for Brake drums or for rear discs. I was about to...

Hi it has the brake discs all around and there was no air coming out of the brake fluid nipples at rear. I will try to find YouTube videos. Is it worth reverse bleeding the brake oil? Thanks

Hi sorry for keep asking. I have bleeded the brakes twice and there were no air bubbles. Breake works but bitting point is low. Is that normal after fitting new Master cylinder?

That’s great news, thanks for being so supportive 🙏

Right now my Defender is on jack stands (12 tonne a pair) front and rear. (while Defender is on the jack stands) after the brakes bleeding, is it good idea to text the brakes with or without wheels? Please advice

The new master cylinder doesn’t have the grove like old one. So I guess an o ring will seal it.

Hi thatnks for providing with that website link, it is very useful. But I can’t find that seal on its own, I have tried Paddocs and Craddock’s and local Land Rover parts shop. I think is the part of the repair seal kit. I gave up and thinking to refit the existing seal with smear of grease on it.

Hi could you please send a picture and possibly part number of 80’s servo?

Hi does anyone know the seal part number for this Brake master cylinder please?

Hi it is 1989 with 300tdi conversion

Thanks for your advice I am going to fit a new Master cylinder. Do you know if anyone sells old type brake Servo booster for my Defender 90. LOF clutches don’t have for old type (only 2 brake lines out pipes).

Hi I did remove the vacuum hose then stated the engine and vacuum is sucking and seems to be working. I have took the picture of the Vacuum pump and there is no sign of any leaks on the engine block. I have removed the Master cylinder and there is no cracks on the front of Servo (picture...