How about the distributor centrifugal advance? That doesn't seem to be
working. Often it just requires cleaning and lubrication.
on 5/7/01 6:40 AM, RETWIZBANG@aol.com at RETWIZBANG@aol.com wrote:
> For 10 months, I have been trying to get the bugs out of the subject engine.
> I have
> 1) Cleaned and sealed the gas tank
> 2) Installed new fuel pump
> 3) Rebuilt and tuned SU HS4 carbs
> 4) Adjusted valves
> 5) Tightened the exhaust manifold to the exhaust pipes
> 6) Installed new vacuum advance diaphram unit on the 25D distributor
> 7) Installed Pertronix ignition
> 8) Installed new rotor cap, plugs, and wires
> 9) Adjusted and tried the timing all over the clock (13 degrees
> BTDC?)
> 10) Checked compression at 145-150 across the board
> 11) Checked resistance of coil (3.5 ohms)
>
> I'm sure there is more, but although I have made modest gains through all
> this, I still cannot get this thing to run strong. My symptoms remain:
> 1) Timing remains at 13 degrees no matter the rpm (vacuum to
> distributor diaphragm is drawn from the intake manifold, and is more strong
> at idle - diminishes when rpms are increased)
> 2) Fierce backfire through both carbs
> 3) Very, very poor acceleration and low power
>
> I have considered the following for my next moves (purchases).
> 1) New exhaust system (needs it anyway)
> 2) New (or rebuilt distributor)
>
> Does anybody out there have a clue for me? I vowed to get the B running
> correctly before I started dismantling for restoration, but I can't get to
> first base. HELP!!!
>
> Rich Townsend
> Manassas, VA
> 69 MGB
> 75 TR6
>
--
Max Heim
'66 MGB GHN3L76149
If you're near Mountain View, CA,
it's the red one with the silver bootlid.
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