Author Topic: Trouble starting - LM3 FIXED!  (Read 1146 times)

Offline Vince in Milwaukee

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Trouble starting - LM3 FIXED!
« on: March 18, 2019, 01:39:59 PM »
Went to "unwinterize" my LM 3 this afternoon, and I may have done something wrong.  Started with a fully charged battery and pulled the spark plugs and rotated the engine a few turns from the front.  Then I took a turkey baster and shot some oil into each hole.  I put the plugs back in and went to start it.  I may have not rotated the engine again - don't remember.   :sad:  Anyhow, the left side was fine, but the right had popping and smoke coming out of the muffler.  Put a new, dry plug in the right, went to restart, and no joy (all oily).  I remember a thread on here about Boyle's Law (cylinder pressures and fluids).  Hoping I haven't bent a valve or anything.  Any advice appreciated.   
« Last Edit: March 18, 2019, 05:53:51 PM by Vince in Milwaukee »
1984 Moto Guzzi 850 LeMans III, 1986 California II
Gone but not forgotten:
1969 Moto Guzzi Ambo, 1994 BMW K75RTw/ABS, 1996 BMW R1100RT, and 1993 BMW K75

Online Perazzimx14

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Re: Trouble starting - LM3
« Reply #1 on: March 18, 2019, 01:57:21 PM »
How much is "some oil"
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Offline Don G

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Re: Trouble starting - LM3
« Reply #2 on: March 18, 2019, 02:08:30 PM »
If you induced more than a tablespoon full in to her, pull the plugs, open throttle wide and spin it over until the spurting stops! You could bend a connecting rod due to hydraulicing if too much lube is in the hole.  DonG

Offline Vince in Milwaukee

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Re: Trouble starting - LM3
« Reply #3 on: March 18, 2019, 02:50:54 PM »
If you induced more than a tablespoon full in to her, pull the plugs, open throttle wide and spin it over until the spurting stops! You could bend a connecting rod due to hydraulicing if too much lube is in the hole.  DonG

I will give this a try.  Thank you.  Hopefully no damage has been done. 
1984 Moto Guzzi 850 LeMans III, 1986 California II
Gone but not forgotten:
1969 Moto Guzzi Ambo, 1994 BMW K75RTw/ABS, 1996 BMW R1100RT, and 1993 BMW K75

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Re: Trouble starting - LM3
« Reply #3 on: March 18, 2019, 02:50:54 PM »

Online Antietam Classic Cycle

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Re: Trouble starting - LM3
« Reply #4 on: March 18, 2019, 03:00:21 PM »
Since the Le Mans III has Nigusil bores, you really didn't need to oil them any IMO. Maybe a squirt of made for the purpose "fogging oil", but that's all.
Charlie

Offline Vince in Milwaukee

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Re: Trouble starting - LM3
« Reply #5 on: March 18, 2019, 05:52:43 PM »
Pulled the plugs, and cranked the engine over a few times, (once at wide open throttle).  Stuck in 2 dry plugs and she fired right up.  Lesson learned, no more than a teaspoon of oil (a wee bit in a McDonald's straw and NO turkey baster!) or as Charlie says, none at all as my bores are Nigusil.  Thank you for the help everyone.  This is a great site and I'll be needing to mail Luap my yearly check soon. 
1984 Moto Guzzi 850 LeMans III, 1986 California II
Gone but not forgotten:
1969 Moto Guzzi Ambo, 1994 BMW K75RTw/ABS, 1996 BMW R1100RT, and 1993 BMW K75

 

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