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Supporting Owners, Builders and Pilots of the Thorp T-18 and its variants.
It is currently Thu Jul 27, 2017 11:43 pm

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thorpdrvr
PostPosted: Fri Jun 23, 2017 1:50 pm 
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John,
Since you are replacing the pushrod tube seals, you might want to consider also replacing the cylinder base o-rings. You can leave the pistons in the cylinder and just pull the wrist pins out (just don't pull the cylinders up too much or the rings will pop out). It would suck to go through all the work and then have the cylinder bases leak because the old o-rings did not seal properly.

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Bernie Fried
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jtwigg
PostPosted: Sat Jun 24, 2017 10:11 am 
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Bernie, that's a great idea. I believe I have the o-rings and will get some knowledgeable friends to help do this in August.

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John Twigg N12055 SN.79 Pittsburgh, PA (KFWQ)


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jtwigg
PostPosted: Sun Jul 16, 2017 10:16 pm 
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Had a great vacation in Anchorage with my son and his family - and our new granddaughter! Back home now and started to make some progress. Put the main gear back on today and added the engine mount after.


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John Twigg N12055 SN.79 Pittsburgh, PA (KFWQ)
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James Grahn
PostPosted: Mon Jul 17, 2017 2:21 am 
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I've never hung a conical mounted engine, but on a dynafocal, it is much easier to hang the mount on the engine, then hang it on the gear. Might want to try that.
Cubes


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jtwigg
PostPosted: Wed Jul 19, 2017 8:53 am 
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I might try that, Cubes, if I run into trouble. My current plan is to put the ring mount on the engine first. I have to do that so that I don't have to loosen or remove either magneto. I found out when I took the engine off that the ring mount JUST clears the magnetos with a little trial and error. Hopefully the same is true putting it back on. Then, I'll mount the engine mount tubes on the fuselage. Finally, I'll mate the ring mount to the tubes with the 6 AN 4 bolts.

Cubes - thanks for the Vstab tip and rudder springs! I got them yesterday.

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John Twigg N12055 SN.79 Pittsburgh, PA (KFWQ)


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jtwigg
PostPosted: Sun Jul 23, 2017 11:16 am 
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Looking forward to seeing everyone at OSH. N12055 will be returning to its airport on Aug 12 for final work and condition inspection. I start tailwheel training as soon as I get back from OSH. I'll be training with Hal Goff back here in Pittsburgh if any of you know him.

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John Twigg N12055 SN.79 Pittsburgh, PA (KFWQ)


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