Minnesota Classic Glastron Forum
General Category => General Discussion => Topic started by: Green with Envy on June 29, 2010, 07:32:57 AM
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So I was thinking about the hard starting when warm problem I'm experiencing. The ignition switch looks original. Could that have a short or something in the start position causing a hard start situation? Then, as I turn the key while trying to start it, I 'unshort' the circuit and it fires.
Is there something special about a marine switch? Auto Zone has a Off-Run-Start switch for under $10.
Opinions??
Allan
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Two things come to mind:
1) Problem with the keyswitch - not providing power to the ignition when the key is in the crank position but does when you release the key, replace switch.
2) Problem with contacts inside the starter solenoid mounted on the starter - not connecting full power bypass for the ignition coil when the starter is cranking. Check that you have 12v power getting to the coil (+) terminal when the starter is engaged otherwise solenoid or connection could be bad. If solenoid is bad power will be reduced at coil (less than 8-10 volts). If the problem is with the keyswitch then there would be no power at coil when cranking so make sure keyswitch is ok first.
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I had this exact same problem with my CV16SS. It is deffinettly in the carb. I think it may be a float or vent problem. Gas is dumping into the intake when the engine is hot. It would start like it's flooded and would need to hold the throttle all the way open till she fired. I ended up replacing the carb with another used one. Now it starts fine when hot but does not like to idle real good when warm. I have messed around with those so many times and I still can't get them right. I tried ordering a "new" one from Sierra and that was the biggest pile of _____ of all time and sent it back.
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Ya, if the switch "switches" like it's s'posed to it's probly not an electrical issue. Sounds more like a "hot flooding" problem to me too.
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I'm not getting the usual fuel smell around the carb as if it were flooding. In any case, how does it flood if there is no pressure pushing the fuel from the pump?
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I think it has to do with the heat in the carb and fuel line causing the fuel to push through. I guess you could look down in the carb after you shut it off and see if it's dumping fuel.
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So, my suspicions were realized last night with Steve A.'s help. Seems for what ever reason, the accelerator pump is not shooting the fuel like it should. ANOTHER rebuild kit in hand, this time I'll do it myself so I know that it is done right. Not saying that the highly recommended rebuilder I used did anything wrong, I'm just sayin'...
Hope to be on the water at Lake Elmo for a test run by 7:30pm tonight. I'll post the results later.
Allan
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It's a really simple carb I rebuilt mine and it was easy.
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How 'bout that? Glad ya got it figgered out. Steve knows his sh*t. Sorry for pointing you in the wrong direction. I'll shut up from now on.
Hey but I was half right! Too much fuel, not enough fuel. What's the diff? Heh heh heh. Take care.
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Took apart the carb last night.
Turns out the accelerator pump end plunger was missing the expansion spring which seals the rubber boot to the passage sides. Now, the pump pi$$es like a race horse! Still has a slight stumble. But starts without issue. And if slightly flooded, needs to be coaxed as the cars with carbs I grew up with did.
Ten minutes on Lake Elmo and I was happy once more. Got up to 42.3 mph with more throttle to go. I backed off because the tach was at 5500. I know this not right because the engine is still in one piece and the tach reads 1500 when the engine is purring at idle. Time for a new tach.
Ready for Saturday on St Croix. Beanies at 10 am!
Allan
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I know this not right because the engine is still in one piece and the tach reads 1500 when the engine is purring at idle. Time for a new tach.
Been there, Recently! (See new tach, new prop thread). Allan, we've got some more like my new one at work, I can check to see what lowball price they'd sell 'em at if you'd like. Should be in the $50 range, at most.