1987 CVCC Civic No Start
#1
1987 CVCC Civic No Start
1987 Honda Civic 4DR
1500 CVCC Engine
California Emissions Spec
48000 Miles
The car ran when it was placed in a garage over 10 years ago and a trickle charger was hooked up. About 9 years ago, the owner of the garage tried to start it up and move it. The battery had been destroyed by the defective charger, a new battery was installed and the car refused to crank. Car was then left where it is now for the better part of the decade.
I have been attempting to get it running for the owner. Here is everything I have done and the results from each step...but the car refuses to run.
Checked battery - approx 9 volts
Installed known good battery and connected to charger - 13.8 volts No cranking or lights
Removed battery cables & wire wheeled connectors - lights work and starter solenoid clicking
Removed starter and took apart, gently wire wheeled commutator, re-installed - starter turns engine over at correct speed
Removed air cleaner and attempted to start with starting fluid down all 3 carb barrels - no fire
Removed spark plugs - plugs sooty and clogged with carbon
Purchased new plugs and tested spark on all 4 cylinders - white spark
Installed new plugs with correct gap & attempted to start with starting fluid - intermittent, infrequent fire on one or two cylinders at a time
Added fuel to gas tank & discovered leaking tank
Connected external fuel tank to fuel inlet & return on pump - verified fuel pump works
Removed fuel cutoff from rear of carb & freed stuck pin - verified operation of cutoff
Examined sight glass on fuel bowl - no visible fuel
Removed top half of carb, cleared needle valve & checked float operation
Cleared the 3 main jets and all accessible passages
Tested carb with compressed air down barrels - all 3 barrels now flowing fuel consistently
Put carb back together on engine
Cranked engine & carb filled to appropriate fuel level - still no start
Removed plugs & tested compression - 150 or so within +/- 3% & rising on the second rotation of the engine
Plugs wet with fuel - dried plugs and blew out chambers then re-installed
Connected vac gauge and cranked engine, couple inches vac at main tree on only starter
Cranked engine while pumping throttle & engine almost runs
Removed plugs and found them to be wet with fuel & sooty
Tested spark again - still white
Re-installed plugs with wider gap and attempted starting, still only occasional cylinder fires
Removed & installed plugs again with short gap - no change
Plugs always wet and sooty when removed
Pumping the throttle causes the engine to overrun the starter, but as soon as you stop pumping it, it goes back to its occasion one-cylinder-now-and-then pattern. You cannot actually keep it running by pumping the throttle without cranking, but almost. Adding fuel down the manifold will also not make it run.
Is this a weak coil? Does the preburn chamber require a that strong a spark to light?
The coil, wires, cap, rotor, and plugs all look brand new.
Thanks for any advice on this...I really do not understand this engine very well, much less the vac system.
1500 CVCC Engine
California Emissions Spec
48000 Miles
The car ran when it was placed in a garage over 10 years ago and a trickle charger was hooked up. About 9 years ago, the owner of the garage tried to start it up and move it. The battery had been destroyed by the defective charger, a new battery was installed and the car refused to crank. Car was then left where it is now for the better part of the decade.
I have been attempting to get it running for the owner. Here is everything I have done and the results from each step...but the car refuses to run.
Checked battery - approx 9 volts
Installed known good battery and connected to charger - 13.8 volts No cranking or lights
Removed battery cables & wire wheeled connectors - lights work and starter solenoid clicking
Removed starter and took apart, gently wire wheeled commutator, re-installed - starter turns engine over at correct speed
Removed air cleaner and attempted to start with starting fluid down all 3 carb barrels - no fire
Removed spark plugs - plugs sooty and clogged with carbon
Purchased new plugs and tested spark on all 4 cylinders - white spark
Installed new plugs with correct gap & attempted to start with starting fluid - intermittent, infrequent fire on one or two cylinders at a time
Added fuel to gas tank & discovered leaking tank
Connected external fuel tank to fuel inlet & return on pump - verified fuel pump works
Removed fuel cutoff from rear of carb & freed stuck pin - verified operation of cutoff
Examined sight glass on fuel bowl - no visible fuel
Removed top half of carb, cleared needle valve & checked float operation
Cleared the 3 main jets and all accessible passages
Tested carb with compressed air down barrels - all 3 barrels now flowing fuel consistently
Put carb back together on engine
Cranked engine & carb filled to appropriate fuel level - still no start
Removed plugs & tested compression - 150 or so within +/- 3% & rising on the second rotation of the engine
Plugs wet with fuel - dried plugs and blew out chambers then re-installed
Connected vac gauge and cranked engine, couple inches vac at main tree on only starter
Cranked engine while pumping throttle & engine almost runs
Removed plugs and found them to be wet with fuel & sooty
Tested spark again - still white
Re-installed plugs with wider gap and attempted starting, still only occasional cylinder fires
Removed & installed plugs again with short gap - no change
Plugs always wet and sooty when removed
Pumping the throttle causes the engine to overrun the starter, but as soon as you stop pumping it, it goes back to its occasion one-cylinder-now-and-then pattern. You cannot actually keep it running by pumping the throttle without cranking, but almost. Adding fuel down the manifold will also not make it run.
Is this a weak coil? Does the preburn chamber require a that strong a spark to light?
The coil, wires, cap, rotor, and plugs all look brand new.
Thanks for any advice on this...I really do not understand this engine very well, much less the vac system.
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mysticstylezrx8
Honda Civic / Del Sol (1992 - 2000)
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04-14-2011 09:40 AM