Ive been working on a 1972 6 HP for awhile.
Sand-blasted, cleaned, and painted everything but the powerhead. Rebuilt / resealed, lower, new water pump, lower crankcase seal, fuel pump, fuel line, spark plugs, coils, points, condensers, wires, boots, carb kit, even install a hard to find propeller guard, and tiller handle shift kit on it.
Only thing I didn't do is pull the intake manifold have a look.
Timing was set with a timing fixture, spark is great.
I usually have great luck with these old engines, apparently not this one.
It wont start.
Not even a hiccup of starting.
Just pull pull pull.
Dumped some premix into the carb, nothing.
Got frustrated, pulled the plugs, and dumped some into the cylinders.
Fires for a split second and nothing.
Pulled the carb off, and dumped fuel into the intake manifold, nothing.
Pulled the powerhead back off, pulled the intake, and saw badly corroded, stuck open leaf valves (both)
Would this cause it not to start? Even slightly?
You would think as not all engines even have leafs if would have done something, not absolutely nothing.
With the intake off, I could see the crankshaft. I have a little corrosion starting on the rod caps, and spotting on the crank itself.
Is this cause for concern, or will it probably just burn itself clean?
Compression was 70 (or 80) cold and dry. Good enough to run.
I was going to buy new leafs and gaskets and call it a day.
Problem is they are $16 each (x2) now I'm thinking about borrowing them from a donor engine.
Powerhead gasket is $9 each, intake manifold gaskets I could reuse? New they are $13 and $8
Before wasting money, I figured I would get some options on what to do.
Sand-blasted, cleaned, and painted everything but the powerhead. Rebuilt / resealed, lower, new water pump, lower crankcase seal, fuel pump, fuel line, spark plugs, coils, points, condensers, wires, boots, carb kit, even install a hard to find propeller guard, and tiller handle shift kit on it.
Only thing I didn't do is pull the intake manifold have a look.
Timing was set with a timing fixture, spark is great.
I usually have great luck with these old engines, apparently not this one.
It wont start.
Not even a hiccup of starting.
Just pull pull pull.
Dumped some premix into the carb, nothing.
Got frustrated, pulled the plugs, and dumped some into the cylinders.
Fires for a split second and nothing.
Pulled the carb off, and dumped fuel into the intake manifold, nothing.
Pulled the powerhead back off, pulled the intake, and saw badly corroded, stuck open leaf valves (both)
Would this cause it not to start? Even slightly?
You would think as not all engines even have leafs if would have done something, not absolutely nothing.
With the intake off, I could see the crankshaft. I have a little corrosion starting on the rod caps, and spotting on the crank itself.
Is this cause for concern, or will it probably just burn itself clean?
Compression was 70 (or 80) cold and dry. Good enough to run.
I was going to buy new leafs and gaskets and call it a day.
Problem is they are $16 each (x2) now I'm thinking about borrowing them from a donor engine.
Powerhead gasket is $9 each, intake manifold gaskets I could reuse? New they are $13 and $8
Before wasting money, I figured I would get some options on what to do.