Yarb

WD 40 will swell the rubber IMHO.

@mayolives do yourself a huge favor and research the disc I’m talking about located on the the end of the pushrod inside the booster. There are rebuilders for that booster.

That’s good advice but you didn’t warn him about the disc dropping to the bottom of the booster.

@Mike Can’t you block this somehow?

@jfa.series1 I need to be schooled AsWell!!

Did you remove the check valve on the booster vacuum line at any time? If you installed it backwards that will cause the problem you are describing.

It’s truly a journey. Been there and it takes awhile

You are correct… That pan is thick aluminum and the baffles inside are just amazing. Not sure I will make it to the track. It’s a stage 4 build from Datsun Spirit. Eiji did an amazing job.

@Mike I guess it’s going to be just like the ocean, It’s not going to stop.

What threw me off is when he reffered it to a belt.

My aftermarket did not include one or referenced it. That might be a Wilwood exclusive. Personally you wouldn’t know when the rear seal is going bad. Probably would drain inside the booster IMO

Try the Wix filter. I had no issues on my 78Z. I did install a S30.world tank as well.

@mike can’t you bring an end to this. It keeps changing usernames. No trace of a MAC address to block?

Are you running the Bosch factory pump? It worked perfectly on my 78 280. You could have a tank problem with the strainer. There was a good reason why they went with the 3/8 input to the pump and 5/16 output.

You will probably bee surprised how it pops out. I’ve removed quite a few. There’s also a seal inside the cog shaft that prevents oil going into the cable. The ring and seal are still available.