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06-27-2012, 01:49 AM
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#1 |
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Not Yet Wild
Join Date: Jun 2012
Posts: 14
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!979 Harley gas Or should I say NO gas
I have a 79 HD gas. When I got it it had a bad piston so we replaced that. During the re-install a nut was left loose and sucked into the engine soooo we got a new engine. we have everything installed, new seals, fresh bearings, gaskets, 110 compression but not getting fuel. The reed valve doesn't seem to move at all and when I put smoke near the intake it looks like it is blowing it instead of sucking. I am at wits end as there is only one place in Indy that will even consider working on older HD carts and I'm not real sure I want to take it there. Any help you can give will be much appreciated. Thanks in advance for taking the time to read this.
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06-27-2012, 08:17 AM
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#2 |
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Gone Wild
Join Date: Aug 2007
Location: North Texas
Posts: 2,312
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Re: !979 Harley gas Or should I say NO gas
Sounds like I shouldn't try this one but here goes anyway! An internal engine needs: Fuel, compression, and a spark at the right time so this one may have that with complications. The compression seems a little high so the muffler may be plugged. Remove the muffler and see if the compression drops
Put a little fuel in the chamber and see if it fires. Is the (New) engine timed correctly? |
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06-27-2012, 11:01 AM
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#3 |
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Gone Wild
 Join Date: Apr 2009
Location: Milton Wi.
Posts: 708
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Re: !979 Harley gas Or should I say NO gas
timing or the piston is installed half a turn off.
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06-27-2012, 11:51 AM
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#4 |
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Not Yet Wild
Join Date: Jun 2012
Posts: 14
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Re: !979 Harley gas Or should I say NO gas
The muffler is off completely. I set the timing just like the book says but I don't know what you mean by the piston being half a turn off. Please explain that one to me. And thanks in advance for the help
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06-27-2012, 11:58 AM
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#5 |
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Gone Wild
Join Date: Apr 2009
Location: Milton Wi.
Posts: 708
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Re: !979 Harley gas Or should I say NO gas
on top of the piston it will be stamped (ex) this has to be in the exhaust side of the jug.
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06-27-2012, 01:28 PM
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#6 |
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Not Yet Wild
Join Date: Jun 2012
Posts: 14
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Re: !979 Harley gas Or should I say NO gas
Ok the piston call was dead on, we had it half a turn out. I RECHECKED the timing just like the book says and it is still blowing. I put smoke near the intake and it is blowing like a fan. I'm so stumped. Points open and close as directed. Is there something I am just missing because it feels like I am running in circles here doing the same things over and over. At my wits end. Thanks again for any input.
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06-27-2012, 04:36 PM
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#7 |
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Gone Wild
Join Date: Aug 2007
Location: North Texas
Posts: 2,312
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Re: !979 Harley gas Or should I say NO gas
Put some fuel in the combustion chamber and see if it will fire!
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06-27-2012, 05:14 PM
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#8 |
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Not Yet Wild
Join Date: Jun 2012
Posts: 14
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Re: !979 Harley gas Or should I say NO gas
did that and it will fire..it just keeps blowing air out of the intake.Tew can I pm you ?
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06-27-2012, 07:28 PM
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#9 |
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Gone Wild
Join Date: Aug 2007
Location: North Texas
Posts: 2,312
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Re: !979 Harley gas Or should I say NO gas
Sure
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06-28-2012, 03:13 AM
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#10 |
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Gone Wild
Join Date: Apr 2009
Location: Milton Wi.
Posts: 708
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Re: !979 Harley gas Or should I say NO gas
bad reed pedals or the reed plate might be in backwards.
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