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110 fz sudden stop and compression on every stroke

Old 08-29-2017, 05:29 PM
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wood
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Default 110 fz sudden stop and compression on every stroke

Hi all,

I just put a couple flights on running really good and smokey and had a sudden failure of some sort while in the air. Sounded like a glow plug popped out. I landed it perfectly.

So I checked glow plug and it is in there and looks like it is OK. I flipped it over and it seems like it has compression on every revolution. I did not spin it to start it up, but I did spin it fast without power to glow plug and it sounds very different.

Where do I start trouble shooting this one? I'm thinking of pulling the valve cover off and checking to see if I broke a rocker or something.

Thanks,
Wood
Old 08-29-2017, 06:02 PM
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kenh3497
 
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Sounds to me like a push rod slipped out of place or something similar. Valve train related in any case.

Ken
Old 08-30-2017, 06:07 AM
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wood
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Default broken rocker arm bolt

So the rocker arm screw broke off and part of it is stuck in the head. It is a small screw, is there any way to get this out? Does this screw have RED thread locker on it from the factory?

What are my options here?

Thanks,
Darin
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Old 08-30-2017, 12:50 PM
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rgburrill
 
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Get a very small easy out.
Old 09-02-2017, 08:32 PM
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I would use a Dremel with a thin cut off wheel and make a slot across the screw. Then a small screwdriver should back it out.Some heat just before removal should soften any locking compound. Don't be afraid to get it good and hot. I would probably use a heat gun and not a torch to avoid damage to the valve springs. Safest would be to remove the head and disassemble the valves from the head then have at the screw .

Ken

PS. With the head removed heat could be applied from the piston side without fear of overheating the valve springs.

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