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Cylinder removal problem
Posted: Mon Sep 24, 2012 2:37 am
by rupertjl
We have to take the #5 cylinder off due to low compression this annual. All the cylinder nuts came off easily except the top left nut looking at the #5 cylinder. It looks like the stud left loose because I can see the stud turn with nut but I cannot thread it out, or even pull it off assuming a cracked stud. Has anyone ever experienced this? The stud has a through hole on it and I can put a punch through it and turn the nut on the stud but now it is up to the pin and I can't remove it any further. It was getting late and dark so I quit for the evening instead of fighting with it too much, any insight would be greatly appreciated.
I looked at the overhaul manual and parts list, it lists all the bigger studs at 7/16 studs so the manuals says it shouldn't be different.
Re: Cylinder removal problem
Posted: Mon Sep 24, 2012 6:00 am
by mit
It is a thur bolt. Read the manual again, look at the opposit side and hold the nut on that side.
Re: Cylinder removal problem
Posted: Mon Sep 24, 2012 8:23 am
by blueldr
Sounds as though someone may be be getting involved a bit above their understanding of that engine.
Re: Cylinder removal problem
Posted: Mon Sep 24, 2012 11:26 am
by rupertjl
thanks guys, it hit me last night too...
Blueldr-rest assured I'm not doing this without my IA, he just decided to go eat dinner and I was more worried about what I'd find when the cylinder came off...
Re: Cylinder removal problem
Posted: Mon Sep 24, 2012 11:52 am
by Bruce Fenstermacher
Oh nuts Judd.
BL in this case your observation leaves me chuckle. Judd may have had a temporary brain fart but besides his IA he is surrounded by people who know aircraft engines believe me. Though they might be the "L" type.

Re: Cylinder removal problem
Posted: Mon Sep 24, 2012 12:40 pm
by rupertjl
Yea too bad I don't have the 180 HP covnersion, parts would be a lot easier for me to "procure"
Re: Cylinder removal problem
Posted: Tue Sep 25, 2012 7:20 am
by marathonrunner
Re: Cylinder removal problem
Posted: Tue Sep 25, 2012 2:58 pm
by GAHorn
THUR you off, did it?

Re: Cylinder removal problem
Posted: Tue Sep 25, 2012 3:56 pm
by blueldr
Re; "blueldr",
That moniker came about when there were three uf us in basically blue airplanes flying is loose formation to various fly ins. I was "blue leader" in deference to my advanced age and former military experience. I did the reporting to the air traffic control facilities as a flight of three and we usually landed in formation, runway width permitting.
In later years, some younger, wise-assed, Texan in the TIC170A, split that to "Blue Elder'. I guess I qualify-plus for the name since I'm now age ninety.
Re: Cylinder removal problem
Posted: Tue Sep 25, 2012 6:39 pm
by GAHorn
That's "blu Eldr" ....

Re: Cylinder removal problem
Posted: Tue Sep 25, 2012 7:58 pm
by canav8
blueldr wrote:Re; "blueldr",
That moniker came about when there were three uf us in basically blue airplanes flying is loose formation to various fly ins. I was "blue leader" in deference to my advanced age and former military experience. I did the reporting to the air traffic control facilities as a flight of three and we usually landed in formation, runway width permitting.
In later years, some younger, wise-assed, Texan in the TIC170A, split that to "Blue Elder'. I guess I qualify-plus for the name since I'm now age ninety.
Dont worry. What is amazing is there is a 90 year old computer literate amongst us. Thanks for being here. Doug
Re: Cylinder removal problem
Posted: Wed Sep 26, 2012 11:50 am
by n3833v
Age is nothing when you have health. Keep with it and all the advise. Thanks
John