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Antique Gas Engine Discussion

Int. L A QUESTION


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  #1  
Old 04-09-2005, 09:47:55 PM
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Default Int. L A QUESTION

I have just rebuilt an L A and cant get it to hit right. Mag timing is at TDC , compression is good. The carb butterfly in the head is closed at start. Should it be open or closed. It is controlled by the linkage from the governor and goes under the piston to the head[its square where it connects]. Just thought this may be my problem because I didnt check it before I took it apart as to how it set back up.. Thanks, Keith
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Old 04-10-2005, 09:52:41 AM
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Elden DuRand Elden DuRand is offline
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Default Re: Int. L A QUESTION

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Originally Posted by Unregistered
I have just rebuilt an L A and cant get it to hit right. Mag timing is at TDC , compression is good. The carb butterfly in the head is closed at start. Should it be open or closed.
Keith:

On all throttle governed engines, the throttle should be wide open when the engine is at rest. When the engine gets up to speed, the throttle should move toward the closed position to hold the speed constant. As load increases and the RPM tries to drop, the governor should open the throttle to compensate.

I'm not an LA expert but I've heard that the governor/throttle linkage can get reversed and cause your problem.

Take care - Elden
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Old 04-13-2005, 05:05:03 PM
Bohunk Bohunk is offline
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Default Re: Int. L A QUESTION

Keith:

I did the very thing you are talking about. You need to turn the linkeage
under the piston one full turn clock wise to put pressure on the butterfly to
keep it open.

Dave
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Old 04-13-2005, 05:29:43 PM
Frank Douglas Frank Douglas is offline
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Default Re: Int. L A QUESTION

Keith:
I agree with Dave about turning the throttle lever clockwise to put spring pressure on the butterfly to keep it open at rest. The thing I don't understand is why my LB govenor and speed control won't work after doing that. Just sits there and runs at about normal operating speed. Any ideas?

Frank
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Old 04-17-2005, 04:28:36 PM
KeithT KeithT is offline
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Default Re: Int. L A QUESTION

I still havent took the time to tear it back down.Looking in from the inspection plate hole, flywheel would be on the left, the linkage lever points to the right side toward the bottom of the engine. This appears to be correct because the piston would hit it if it was pointed up.I think my problem is out at the head I put the butterfly in the wrong position. Also the mag trip spring is acting up after setting. Can it be oiled? Any other maintanance on the mag? Just learning, Thanks, Keith
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Old 04-24-2005, 04:43:00 PM
KeithT KeithT is offline
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Default Re: Int. L A QUESTION

I turned it as told and it hit and ran the first few turns of the flywheel.. Thanks for the help.
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