Building an Experimental PA11

[cubdriver2]

Waiting for rain to quit so I can test fly, but I gained almost 75rpm on static run up. More than expected.

Probably more when they break in

Glenn

 

[Douten]

Hope all is good now for you. Here's a couple pics of my engine only thing I need now is a new crank 8-12 weeks out, slick mags a few weeks out, and hopefully that is the last of the big $$$ items. Plan to put wings on next week so I can finish trim and plumb the fuel lines.

 

[Dan Gervae]

Nice red color ….love it

 

[dgapilot]

I could not get that exhaust valve to go into the cylinder after I removed the keepers…. I worked it back and forth with lube but it got very tight at the end….then we checked the pushrod and it has a slight wobble. I bought this engine off of a prop strike aircraft…the A&P IA tore it down and had the internals sent in for magnaflux. He install new bearings in the lower end and made a log entry as well as stapled the yellow tags in the book. It is my belief that he did not disassemble the cylinders. I bought it cheap so I have decided to put a new top end on this…I spent all this time and money building a plane…no sense skimping here. Also, these are old serial number cylinders, so timing has to be set to 24 degrees to stop the cracking issues that plagued these units…I will now be able to reset the timing back to 28 degrees which should help give me a tiny bit more power. I’ll clean the cylinders I replace all up and put them on my shelf….I think they may even work on my C 90-12F on my floatplane?? Anyway…after Lycon said prices are going way up….$700 per jug on TCM models, I decided to go this route. I had considered souping up a bit with higher compression ratio and some porting. I’m going to go this route for now….maybe when my I start setting up my floats next spring I’ll have some work done while I’m building the rigging.

After you torque them, go back the next day and torque them again! You will be surprised how much they loosen up overnight, Takes a while for the case and cylinders to settle in and hold torque.

 

[Doug Budd]

A nice mod to the small continental engines is the real gaskets of Tennassee push rod tubes. I put them on mine and no more oil leaks and the customer service is out of this world. Chris is very helpful for all your questions.


Sent from my iPhone using SuperCub.Org

 

[Douten]

I got my wings installed last week have most fairings built big problem now is FWF hope to have the new crank by the end of the month should give me enough time to do all the small things I have left. Weighed on bathroom scales yesterday ( I know they weigh heavy because I can't weigh what they say:<) ) came in at 615# heavier than I wanted as I've been annal about weight so far only thing missing in the weight is seats, engine, exhaust and prop. engine is a c90-8 plane has 8 inches more wingspan than my 11 does a second 18 gallon wing tank, extended baggage.