Booster Busted

[zbrat1946]

Anybody help a recent adoption of boneyard 260z 2+2 After repairing the engine myself she blew out a heater core on her road test. We capped the lines and so

now we could set the twin SU carbs. The max vac I could get was 18 inches and

the idle was steady at 750. Next road test and the brakes were hard and the SU

varbs were backfiring. Does that sound like a brake booster? I cannot locate a

reman booster for this car anywhere. Some people have said use a 280zx 2+2 and

change the master cylinder. I need the booster,master cylinder and heater core

and can't come up with either. I also managed to get the wipers working but they

seem to be slow. All the speeds work and they return to park but they are slow.

Like I said I am new to these cars but I can see that they are not complicated.

I am open to suggestions and I truly want to see the potential of this engine

on the straightaway.

[ezzzzzzz]

Add details about the brakes and backfiring. Is the check valve for the booster in backwards? Did the brakes work before? If not, did you block off the booster vecuum hose to prevent a potential leak (assuming the booster might be bad)? Are the SU's backfiring on excel or decel? We are talking about a 280X 2+2 (fuel injected)? Did you install the SU's or were they already there? Is there oil in the dampers? Is the linkage hanging up? As you can see, there are a lot of questions to ask before giving any viable answers. Moving on. The brake parts can be found at the local parts store or online assuming you really need them. The wipers on these cars are notorious for being slow even when working correctly. Yours are likely fighting 30 year old grease and neglected pivot points. A good cleaning and lubrication would go a long way to improve them.