Archive: Ignition

Good to be back / Where we stand

Good to be back! I hadn’t taken a break from the car, just the website (minus the slight redesign). That was down to having nothing news-worthy to mention. Just problem after problem after problem. I’m now left with (hopefully) just the one problem which will (should) be simple to fix. I’ll make my way to that, after filling in on what I’ve been up to…     So, I drove…
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Car started for last time.

Car did not want to start. Gravity fed petrol through pump but to no avail. Found 2 fractured rubber lines at the carb, so temporarily taped them up. Still no different. Recharged battery, and still no change, so cleaned battery terminals and the clamps, whilst doing this noticed the negative cable has deteriorated significantly and almost fell out the clamp crimp. Repaired this cable with a spare one from the…
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Compression test again.

Car started straight away today. Thought I’d do the cylinder compression test again before moving on to test the intake and fuel fump vacuum pressures. But, battery run out after the compression test, so intake vacuum will have to be tomorrow. The difference in results from yesterday, although minor, are probably due to the engine being hotter as the test was conducted quicker this time round. Curious why number 4…
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Compression test.

Car would not start today. Ha. Gravity fed petrol into pump then reattached fuel lines and car runs. Unsure of problem. Performed compression tests on the cylinders of the engine – remove all spark plugs, then screw the gauge into each spark plug hole whilst turning the engine over.   An engine overhaul is intended (new gaskets, piston rings etc.) but this test should flag up any serious problems. Diagnosed…
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Cleaned ignition coil contacts.

Tried spraying WD40 down carburetter barrels, nothing happens, could indicate faulty ignition electrics, could not. Pulled out ignition coil and tested resistances on primary and secondary windings, appears to be good, gives a large ratio of the in/out voltages. Cleaned case and contacts while it was out. Put back in, no difference to start up. Tested spark plugs, there are sparks at each plug.…
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Recharged battery back in.

Recharged battery back in. Replaced the sheared and rusty battery clip bolts. Engine turns over at a greater rate and sounds somewhat healthy but doesn’t fire. Battery was part of the problem, must have lost it’s charge in transit. 10L of petrol put in, no change.   Problem must lie with either igniton electrics or fuel system. Quickly tested, there are sparks at all spark plug leads.…
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More stripping out. Starter Motor off.

Pulled out some more interior fittings and cleaned the transmission tunnel of the insulation or sound proofing sheets.   Engine dosen’t turn over, starter solenoid clicks – pinion gear engages with flywheel, but starter motor does not turn. When jump started a faint whir of the starter motor and the belts and fan moves slowly.   Unbolted and dewired Starter Motor and started cleaning outside casing with wire brush and…
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