Re: SER1 The first trials to start the engine - Day 4
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At 08:50 AM 2/8/2005, Ulrico wrote:<br>
<blockquote type=cite class=cite cite=""><font face="arial">I removed the
air inlet hose from the carb, the fuel hose from the pump and filled the
floating chamber to the top and injected some fuel directly into the
carb. Cranking the engine it a coughed a bit from the carb but not inside
the cylinders. Trying further did not produce one single kick. I roughly
checked the timing, but just by verifying that the rotor is opposite the
corresponding pins in the distributor cap when the first cylinder is at
TDC. I should have taken the rocker cover off to make sure it is in
compression stroke and not evacuating stroke. Next time.<br>
Next step was to remove the plugs, fill some fuel directly into the
cylinders and cranking for about 30 seconds to remove any remnants of the
thin oil I had filled in some weeks ago. I cleaned the plugs again and
the next try produced some coughing inside the cylinders. So at least
something happened. But that was it then until the battery was empty. I
can't really call it a success.<br>
Several questions come to my mind:<br>
There is a lever for the choke, something I know of, and a lever for
mixture control. Could that be something to adjust the engine to high
altitudes? The fact that some coughing could be produced is
encouraging. But it was not the result of an "inhalation"
through the carb, but burning the rest of the fuel I had injected
directly into the cylinders.<br>
Could it really be too cold? Or could the carb be blocked somehow? Would
it be wise to dismantle and clean it, may be that helps at this
stage?<br>
The other question is of course, how much energy should be devoted to
trying to start the engine now? If it fires and idles for a minute or so
I will take it out and once the chassis is completed dismantle it to have
a look at the
interiors.</font></blockquote><font face="Arial, Helvetica" size=4><br>
Ulrico,<br><br>
If the engine cranks over, and you are getting spark,<br>
you can easily check the timing with a light bulb. Also<br>
adjust the valves and check the battery condition for<br>
a full 12V. This should take care of the electrical side.
<br><br>
On the fuel side, your plugs may be wet or oily, or the<br>
fuel not fully atomized. Get a can of starter fluid (ether)<br>
and spray it down the throat of the carb. It should kick<br>
the motor over for a few revs as you try starting it.<br><br>
If the engine has been sitting awhile, no doubt the carb<br>
needs to be taken apart and cleaned - soaked for a<br>
few days in carb cleaner then reassembled. You may<br>
also have water or frozen passages in the carb. Water<br>
in fuel will settle in the bottom of the bowl to the point<br>
of not having any fuel at all - you may be injecting water<br>
into the engine. Check the fuel filter bowl for water and<br>
other contaminants. I've had a small passage blocked<br>
by a frozen piece of ice the size of a pencil lead which<br>
later dropped out into my hand.<br><br>
I would not disassemble a motor for any reason. You<br>
must get the engine running and warm up properly to<br>
operating temperature. After running it a few times,<br>
getting the carb to work, and setting the timing, you<br>
can do a compression test and leak down test to<br>
determine the condition of the engine.<br><br>
Michael Carradine <br><br>
<br><br>
<br><br>
<br><br>
<br><br>
</font> <br>
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