Not sure if you are describing "hard cranking" with ADVANCED TIMING (draws alots of amps) or you feel the motor is tight! (you would have felt this on assembly)
THE OTHER thing - you may have done (that would cause stalling when driving) is to use the wrong MK1 fuel pump !!! Please talk to us as to what was used ( and or ask what to look for in the difference) Mark
--Previous Message--
: I spent an hour or so outside with the
: car after dinner. I was going to remove
: the manifolds and re-torque the head
: but I felt I was making too much
: progress to take that route tonight.
:
: I experimented with the timing, idle
: speed, looked for vacuum leaks, and
: finally tweaked the mixture a bit. I
: found no leaks using propane passed
: over/around all the joints, gaskets,
: throttle shafts, etc. No leaks were
: found. Following that I decided to
: play with the mixture just a tiny bit.
: I didn't want to do a complete tune up
: yet. The end result was a more stable
: idle at about 10-11" of mercury.
: That may not be the 13" Ted said I
: would get but it was significantly
: better than the 6" I had
: yesterday. This time the car survived
: its round the block trip without
: stalling. BTW, the dizzy does have
: vacuum advance but I have been doing a
: lot of this work with the line
: disconnected and plugged.
:
: Not stalling is a good thing. The
: engine is still very tight and
: re-starting (even hot) takes a lot out
: of the battery. I think I may finally
: invest in a gear reduction starter.
:
: Anyway, I will plan on pulling the
: manifolds off later this week and
: re-torquing the head followed by
: checking the carbs out carefully on the
: bench finally a mixture adjustment.
:
: I am not 100% satisfied at this point
: but I am certainly MUCH happier than I
: was this morning.
:
: Thanks to all for your help and advice.
: I may be back for more advice on this
: in a day or so.
:
: Doug L.
:
:
: --Previous Message--
: SOunds like you have a handle on it.
: Going the right way. Don't forget to
: check the throttle shafts for air leaks
: !
: Mark
:
: --Previous Message--
: What ignition timing are you using?
: Will
: probably want quite a bit for a decent
: idle/idle vacuum. I find that my mk2
: engine (stock 270 cam) likes 16 - 17º
: for highest vacuum (it helps that I can
: read the vac and control the timing
: from a laptop) and I'd expect a wilder
: cam to want a bit more.
:
: Does the distributor have vacuum
: advance?
:
: Cheers
:
: Nick
:
: --Previous Message--
: I can stall the engine if I back the
: idle
: screws out.
:
: The carbs are the early CD type, not
: CD-2. They are the simple ones with
: jets that adjust from below instead of
: needles from above. The diaphragms were
: replaced last year but the low idle
: vacuum has been with the car since
: before this rebuild so I don't think it
: is something I just created. It is
: probably something that has been wrong
: with the carbs/manifold for as long as
: we have had the car.
:
: My plan at this point is to bring the
: engine to temperature again, then
: loosen the manifolds to gain access to
: the head studs and re-torque them.
: After that I can take the intake
: manifold to the bench complete with the
: carbs and give them a once over.
:
: I made sure both the intake manifold
: and header had flat flange surfaces and
: I even built up the header flange
: thickness to match the intake flange
: thickness for uniform clamping. I am
: just confused.
:
: I guess while the engine is idling to
: temperature I will try ether or propane
: around the intake to see if I can find
: a leak. It didn't work last time but
: it is certainly worth trying again.
:
: Doug L.
:
:
: --Previous Message--
: I do iron head/block engines hot.
:
: If you can't find any external vacuum
: leaks, it could very well be due to an
: internal leak in one of the carbs,
: depending on exactly what carbs are
: fitted. For example, if they have
: throttle plate bypass valves, one could
: be sticking open and would give high
: idle and low vacuum. Some have the
: internal decell valve diaphragms,
: different flange spacers/gaskets etc.
: Can you drop the idle if you back the
: idle screws out all the way?
: Glen
:
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