S-Type SU overhaul and brake booster

[mikeh@dist.gov.au (Mike Hutchings)]

     Well I completed the install of the PBR Type 40 brake booster.  No 
     hiccups here other than relying on a one person brake bleeding gizmo.  
     With one end of the tube tightly connected to the nipple and the other 
     end, with a spring loaded ball stop arrangement set at it's lightest 
     resistance in a jar, I depressed the brake pedal.  I heard a pop, my 
     foot went straight to the floor, and I heard the sound of a jet of 
     brake fluid being sprayed everywhere but into the jar.  A mad rush to 
     clean up.  Another gizmo bites the dust.  I found a cheaper, and 
     cleaner, option by giving one of my kids a chance to earn some extra 
     pocket money by sitting in the Jag!  I've only had a small drive since 
     but what a difference.  No more need to plan to stop three blocks 
     ahead.
     
     I also connected up the vacuum hose from the intake manifold and 
     reconnected the hose to get the scuttle servo operating.  This still 
     doesn't work so I'll have to start looking down the line to see what's 
     up.  At least the non return valve is working on the vac reservoir.
     
     The other job, overhauling the SU's, went better than expected.
     
     Again everything went reasonably according to plan.  That is, instead 
     of one hour to finish the job it took five.  As I mentioned before, 
     the linkages where the problem, combined of course with the tight fit 
     under that hood (bonnet?).  I had completed disassembled the linkages 
     and cleaned/ replaced what I could.  I found that a cup of coffee and 
     some time spent working on the assembly order was well spent.
     
     I must admit during the reassemble I was thinking of what I could do 
     when it didn't fire up.  No need.  Three hits of the "go" button and 
     off she went.  Not bad settings either.  After using some spare vac 
     hose to the ear to check the air ( I passed on the chance to buy an 
     air flow indicator for $80 ) some minor adjustment to the mixture it 
     was purring for the first time since I've had the car.  I was able to 
     bring the idle down to 600rpm ( it's an auto ) and all the roughness 
     I'd been putting up with was a thing of the past.
     
     Ok now the crunch.  The AED is leaking.  I'm fairly certain that it is 
     the fiber washer where the AED is attached to the housing coming from 
     the front carby.  I've used about as much force as I'd like to in 
     tightening it.  I know I'll have to pull it off but any clues on a 
     replacement for the fiber washer? Another one, neoprene etc?  There 
     has always been some loss through this area but now its actually 
     forming drips.  The washer is new as were all the washers (including 
     the aluminum ones).  Which reminds me I had to buy two new diaphragms 
     as well - at AUD$24.50 each.  With the gasket kit, piston and 
     diaphragm springs, needles the parts for overhaul has cost AUD$165.60.
     
     Oh another thing.  In the archives I have seen a few good reports 
     about using MSD Coils.  Is there any value in this (ie the MSD) coil 
     if you don't intend putting in the whole multi spark ignition system.  
     I like the idea of getting the Jag to start in half a revolution 
     instead of the two to three it currently takes.  I've replaced the 
     plugs, leads and distributor in the last three months.
     
     mikeH
     3.8 S-Type Auto

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