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  #81  
Old 03-13-2010, 04:54 PM
solomon solomon is offline
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nothing on craigslist around here, bummer, $65 at kragen
  #82  
Old 03-13-2010, 05:02 PM
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Craftsman number 143-676062 translates to HM100-159014A Tecumseh.
Quote:
Get a timing light.
Don't need one.
Quote:
Well im still convinced it has timing issues.
Ignition or valve??
Quote:
Again,how do i set the gap? thanks
Read post 73.
Quote:
i never heard a coil behind a flywheel before.
You got to get out the house more often. JK
Used to be very common. B&S used to have them and are a beotch to set-up.
I have several.
Here's a Jacobsen internal coil:Clinton's and early Tecumseh 2 and 4 cycle were similar to this and were sometimes interchangeable.
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  #83  
Old 03-13-2010, 06:01 PM
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Thanks so much russ, you're my hero, LOL
Im thinking ignition timing, but i need to know proper valve clearence to determine if its valve timing as well
  #84  
Old 03-13-2010, 06:05 PM
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Quote:
Im thinking ignition timing
If has external coil, timing cannot change unless key is sheared.
Quote:
i need to know proper valve clearence to determine if its valve timing
Clearance has no effect on camshaft/valvetiming.
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  #85  
Old 03-13-2010, 06:35 PM
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then how could valve timing become off? And it uses a points system behind the flywheel, how is that adjusted? Engine is currently disassembled, and the key was fine.
  #86  
Old 03-13-2010, 06:41 PM
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Quote:
then how could valve timing become off?
Can't change on it's own. If it is off...then someone had to change it.
Quote:
uses a points system behind the flywheel, how is that adjusted?
Check out the link I sent you in post #73. It's all in there.
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Old 03-13-2010, 07:17 PM
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it didn't really explain how to do anything. Didn't see anything about valve lash, what should it be? Sorry if its their and i missed it. Thanks
  #88  
Old 03-13-2010, 07:43 PM
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Page 96

valve clearance

HM100
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  #89  
Old 03-13-2010, 07:47 PM
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Quote:
it didn't really explain how to do anything.
Page 70 under "Fixed Timed System (External coil)".
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  #90  
Old 03-13-2010, 08:02 PM
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If its just something that your going to sell then get some exhaust paint and give it several coats. If it runs excellent then it can't have any serious valve or ignition timing problems.

Hayden
  #91  
Old 03-13-2010, 08:04 PM
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Quote:
If it runs excellent then it can't have any serious valve or ignition timing problems.
I agree and I posted as such early on.
However, as suggested, get the correct muffler.
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  #92  
Old 03-13-2010, 08:08 PM
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I'm not going to sell someone junk. it is a problem and Im not going to cover it up, that's wrong IMO. This motor has some serious valve issues. it says valve clearance should be .008 -.012 inches, my exhaust is .032. So i grabbed another valve (virgin) and it was the same clearance, i tried another lifter and it was still .032 which is more than triple what it should be. Something is not right, maybe the cam lobes are shot?
  #93  
Old 03-13-2010, 08:13 PM
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Quote:
Originally Posted by solomon View Post
I'm not going to sell someone junk. it is a problem and Im not going to cover it up, that's wrong IMO. This motor has some serious valve issues. it says valve clearance should be .08 -.012 inches, my exhaust is .032. So i grabbed another valve (virgin) and it was the same clearance, i tried another lifter and it was still .032 which is more than triple what it should be. Something is not right, maybe the cam lobes are shot?
Ummm 0.032 is between 0.08 and 0.012? There's no problem there?

Show us a picture of the muffler glowing, make sure it's got no holes and make an exhaust gasket. Show us a picture of it cold too.

Thanks

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  #94  
Old 03-13-2010, 08:14 PM
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Im thinking about having the crank machined down to 3/4" and fitting my snow blower pulley on it, and using it for the snow blower. But i think i might grab some pipe fittings and install an extra large quiet muffler.
  #95  
Old 03-13-2010, 08:15 PM
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Quote:
Originally Posted by sideways View Post
ummm 0.032 is between 0.08 and 0.012? There's no problem there?

Show us a picture of the muffler glowing, make sure it's got no holes and make an exhaust gasket. Show us a picture of it cold too.

Thanks

hayden
sorry i meant .008

And the engine is all apart right now, so cant do a video. =(
  #96  
Old 03-13-2010, 08:38 PM
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Quote:
Originally Posted by solomon View Post
sorry i meant .008

And the engine is all apart right now, so cant do a video. =(
Look, your engine can't have any serious problems, there's no point in taking it apart. That valve clearance is fine. Just get a car muffler or something, people like a quiet generator.

Hayden
  #97  
Old 03-13-2010, 08:43 PM
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How did you measure valve lash?
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  #98  
Old 03-13-2010, 09:47 PM
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with a feeler gauge. I made sure it was on inches not mm. The original generator motor had this small muffler on it, that's what I'm using now. The engine on the generator now, originally had a HUGE , LOW TONE MUFFLER on it that i removed, now i know why it was on their. I only removed it because the way the pipe fittings were on it, the engine wouldn't fit the generator cage. I'm glad i dissembled it anyway because their is some NASTY OIL GUNK on the bottom, like chunky milk that's pure black. I want to clean the whole motor up, and tune it just right, get the gov set at 3800 rpm and use it on my snow blower.
  #99  
Old 03-13-2010, 11:14 PM
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that black chunky crap is carbon. either it was not properly cooling or it was blowing carbon past the rings
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  #100  
Old 03-13-2010, 11:31 PM
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it wasn't hard or anything just chunky. But I can believe it.
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