Search found 18 matches

by whee
Tue Dec 04, 2018 9:56 pm
Forum: Aircraft Power Only
Topic: Piston/bore clearance
Replies: 3
Views: 766

Re: Piston/bore clearance

Swamper, I don’t think going with the Conti spec because that is for their cast pistons. These are forged and have nothing in common with the factory Conti pistons. hdsadey, These are made for 2618. Engineered and manufactured by CP Carrillo. I sent them a factory piston and had a in-depth conversat...
by whee
Tue Dec 04, 2018 6:22 pm
Forum: Aircraft Power Only
Topic: Piston/bore clearance
Replies: 3
Views: 766

Piston/bore clearance

Looks for a little help guys. I had some custom forged pistons built for my Conti IO360. The piston manufacture is a well known outfit that has experience building pistons for air cooled engines (mostly VWs) but that isn’t their main gig. They tell me to set the piston/bore clearance to 0.006” which...
by whee
Fri Aug 25, 2017 9:59 am
Forum: Aircraft Power Only
Topic: Continetnal Alternator/Generator Drive
Replies: 3
Views: 712

Re: Continetnal Alternator/Generator Drive

Will do. Thanks.
by whee
Thu Aug 24, 2017 5:18 pm
Forum: Aircraft Power Only
Topic: Continetnal Alternator/Generator Drive
Replies: 3
Views: 712

Continetnal Alternator/Generator Drive

I'm on the hunt for a drive hub (pn: 653983) from a Continental alternator/generator drive assembly typically used on small Continentals (C85, C90, O200, O300, IO360). My old version hub (pn 530406) won't work with the alternator I want to install. I've searched all the regular airplane salvage plac...
by whee
Wed May 24, 2017 5:08 pm
Forum: Aircraft Power Only
Topic: What should I have done with my Cylinders
Replies: 21
Views: 4816

Re: What should I have done with my Cylinders

I did stay with the stock compression (8.5:1). I'll be running premium car gas and didn't want to push the detonation margin too much.
by whee
Wed May 24, 2017 4:09 pm
Forum: Aircraft Power Only
Topic: What should I have done with my Cylinders
Replies: 21
Views: 4816

Re: What should I have done with my Cylinders

Just to kinda wrap this thread up. As mentioned above everything measureed within tolerance (valves/guides were within new limits) but we discovered some issues with the pistons. After learning that OEM pistons were $360 each we decided to have some custom forged pistons made by a notable piston man...
by whee
Wed May 24, 2017 3:55 pm
Forum: Aircraft Power Only
Topic: Pacemaker ignition system
Replies: 37
Views: 13453

Re: Pacemaker ignition system

I talked to Daren several months back. He was easy to talk to and answered my questions happily. If your honestly interested in buying his ignition system don't hesitate to call him. I wish I hadn't told him a wanted it for an airplane. Now I'm stuck with a system I believe will be very good once I ...
by whee
Tue Feb 07, 2017 5:19 pm
Forum: Aircraft Power Only
Topic: What should I have done with my Cylinders
Replies: 21
Views: 4816

Re: What should I have done with my Cylinders

Thanks Moritz, I knew that but it's great to have people double checking. We pulled all the valves and measured them. Everything was within new specs so we lapped and reinstalled. We found that our pistons weren't in as good of shaped as we would have liked so we are sourcing some new forged pistons...
by whee
Fri Jan 20, 2017 2:11 pm
Forum: Aircraft Power Only
Topic: Dumb question. Auto pistons in aircraft engine?
Replies: 8
Views: 2618

Re: Dumb question. Auto pistons in aircraft engine?

Any warning against running auto pistons or things to watch out for? It's looking like a may need new pistons for my CMI IO360 and my machinist buddy that is helping me with my machine work is telling me to look into getting some pistons made. Says the modern design will be way better than the 1920s...
by whee
Fri Jan 20, 2017 1:53 pm
Forum: Aircraft Power Only
Topic: What should I have done with my Cylinders
Replies: 21
Views: 4816

Re: What should I have done with my Cylinders

That's a pretty cool story Lwells, I'll have to check out the Lucas additive. I too am a believer in MMO, it is great stuff. I don't want to do a full cylinder rebuild because of the issues I've seen before when flight testing a scratch built airplane while trying to break in an engine. Basically th...
by whee
Fri Jan 13, 2017 1:25 pm
Forum: Aircraft Power Only
Topic: What should I have done with my Cylinders
Replies: 21
Views: 4816

Re: What should I have done with my Cylinders

Thanks for the reply Mr. Fenner. I've been able to talk to a few overhaul shops that were willing to share info. Since my cylinders are right at the service limit for standard size I could run +5 rings on my standard pistons. Appetantly that is somewhat regularly done on certified airplanes. Or I ca...
by whee
Thu Jan 12, 2017 4:30 pm
Forum: Aircraft Power Only
Topic: What should I have done with my Cylinders
Replies: 21
Views: 4816

Re: What should I have done with my Cylinders

Just finished measuring the bores on my cylinders. 4 of them are just outside standard bore specs but still round. I need to decide if I want to send them off and get them coated or buy +5 oversized pistons. You guys have any recommendations? Not really looking forward to buying new pistons and it d...
by whee
Sun Nov 27, 2016 8:38 am
Forum: Aircraft Power Only
Topic: What should I have done with my Cylinders
Replies: 21
Views: 4816

Re: What should I have done with my Cylinders

Sent it in for overhaul but it was cracked. Bought a freshly overhauled crank that was ground 0.010 under. I can't believe how expensive M010 bearings are for this engine, $2000[FLUSHED FACE]
by whee
Sat Nov 26, 2016 9:37 am
Forum: Aircraft Power Only
Topic: What should I have done with my Cylinders
Replies: 21
Views: 4816

Re: What should I have done with my Cylinders

Thanks for the help guys. I have a path forward. This engine sucked an exhaust valve after having some cylinder work done, buy a certified cylinder shop, and the airplane was totaled on landing. I bought the engine as a core, did a complete teardown, had the case overhauled, all steel parts inspecte...
by whee
Wed Nov 23, 2016 8:05 pm
Forum: Aircraft Power Only
Topic: What should I have done with my Cylinders
Replies: 21
Views: 4816

Re: What should I have done with my Cylinders

A hone and new rings warrants proper break-in, just like overhauled cyls, if you're concerned about cooking them. Airboaters can stop anywhere and let 'em cool off and control the heat cycles. We usually have a frosty beverage while we wait for them to cool down. Run the used ones or break-in a new...
by whee
Wed Nov 23, 2016 7:54 pm
Forum: Aircraft Power Only
Topic: 0470 fuel manifold leaking
Replies: 15
Views: 2628

Re: 0470 fuel manifold leaking

Boattrash55 wrote:Ok so the hole on the housing is supposed to be there but since the diaphragm is messed it's allowing fuel to pass by and leak out?
Yep
by whee
Wed Nov 23, 2016 3:14 pm
Forum: Aircraft Power Only
Topic: 0470 fuel manifold leaking
Replies: 15
Views: 2628

Re: 0470 fuel manifold leaking

Check this link to see what the inside of the manifold valve looks like. Pretty simple in there.

https://www.flickr.com/gp/100657243@N02/16KXm4
by whee
Wed Nov 23, 2016 2:37 pm
Forum: Aircraft Power Only
Topic: What should I have done with my Cylinders
Replies: 21
Views: 4816

What should I have done with my Cylinders

Hew guy here. I've been lurking for about a year and learning a bunch about engines. I must admit I don't have an airboat, though just over a year ago I vacationed in FL and went for a ride on one. It was crazy fun and if there were swamps in ID I'd have one for sure. I am building an experimental a...

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