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Wright R-2600
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rkammlott



Joined: 26 Jul 2004
Posts: 47
Location: Teaneck NJ

PostPosted: Sat Apr 19, 2014 17:35    Post subject: Reply with quote

nice job. how did you get the cylinders so nice and fresh looking?
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jwilcox



Joined: 11 Mar 2010
Posts: 83
Location: Fredericton NB Canada

PostPosted: Sun Apr 20, 2014 08:14    Post subject: cylinders Reply with quote

The cylinder cleaning was a part of the project that was daunting in the beginning. They are too big for my cabinet and didn't want to make that much mess outside with sand blasting. I had planned to paint the steel barrels anyway but wanted to leave the heads bare. There was a lot of debris from the few seconds it acted as a wood chipper. We experimented with several cleaners and found CLR Grease Magnet brushed on and left to sit for a few hours, but kept wet, dissolved much of the surface grime and a pressure washer spray after cleaned things up nicely. Don't think the CLR will do much for heavy grease but worked good for us. The household CLR is not the same and has chemicals that may not agree with engine parts. I used about 3/4 of one bag of sand to finish up around exhaust ports and spots of corrosion. A few of the heads were painted so I went ahead and sprayed a light coat of the same silver as the crankcase on the heads as well as doing the barrels. One of our members took on the task of fin straightening on the barrels and his time shows in the finished look. Another product we tried that seemed to work is Marvel Mystery oil, it cuts grease and dirt but being oil based is harder to clean up and I didn't want to wash it off outside with the pressure washer.
Will add a photo of a rocker arm later, cleaned in grease magnet.
Jerry

http://www.enginehistory.org/BBimages/WilcoxJ/P1080798.jpg
http://www.enginehistory.org/BBimages/WilcoxJ/P1080799.jpg
http://www.enginehistory.org/BBimages/WilcoxJ/P1080805.jpg
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jwilcox



Joined: 11 Mar 2010
Posts: 83
Location: Fredericton NB Canada

PostPosted: Sat Apr 26, 2014 16:24    Post subject: Reply with quote

More pieces on, only a couple of intake tubes, valve covers and a few odds and ends and it will be trailer design time.

http://www.enginehistory.org/BBimages/WilcoxJ/P1080807.jpg
http://www.enginehistory.org/BBimages/WilcoxJ/P1080809.jpg
http://www.enginehistory.org/BBimages/WilcoxJ/P1080811.jpg
http://www.enginehistory.org/BBimages/WilcoxJ/P1080812.jpg
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jwilcox



Joined: 11 Mar 2010
Posts: 83
Location: Fredericton NB Canada

PostPosted: Wed May 07, 2014 18:40    Post subject: update Reply with quote

As expected work time on the engine is suffering due to some decent weather. Managed to get 3 exhaust stub stacks extended to their original length and now have a set of 7. The big item since my last post is that propeller blades have arrived and work has begun on them. They are DC3 blades, fine for our use, going to try for about an 80" diameter, no particular reason for that size just seems to look good. The blades will be polished on the front and root and flat black on the back.
My son has started the trailer design, so far it's looking great to me.

http://www.enginehistory.org/BBimages/WilcoxJ/P1080815.jpg
http://www.enginehistory.org/BBimages/WilcoxJ/P1080816.jpg
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http://www.enginehistory.org/BBimages/WilcoxJ/P1080860.jpg
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jwilcox



Joined: 11 Mar 2010
Posts: 83
Location: Fredericton NB Canada

PostPosted: Mon May 12, 2014 18:48    Post subject: trailer design Reply with quote

My son has been working hard at a trailer design and it looks as though we are pretty much ready to buy metal. I'm thinking I'm very lucky to have him doing this as it will save all the guess work and avoid the build/design as you go method that probably would have been my second option. Hope the files will load and if anyone has an idea or suggestion let us know.
Jerry

http://www.enginehistory.org/BBimages/WilcoxJ/Trailer000.jpg
http://www.enginehistory.org/BBimages/WilcoxJ/Trailer001.jpg
http://www.enginehistory.org/BBimages/WilcoxJ/Trailer002.jpg
http://www.enginehistory.org/BBimages/WilcoxJ/Trailer003.jpg
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rkammlott



Joined: 26 Jul 2004
Posts: 47
Location: Teaneck NJ

PostPosted: Tue May 13, 2014 06:31    Post subject: Reply with quote

looks great. maybe build a brace for the front (prop side) of the engine to steady it during road trips . make it removable so you can take it off during runs?
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jwilcox



Joined: 11 Mar 2010
Posts: 83
Location: Fredericton NB Canada

PostPosted: Sun May 18, 2014 16:20    Post subject: R 2600 Reply with quote

Looks like the trailer build will begin this week, no time line on this so we'll see how it goes. Amazing how many small bits there are left when you think things are nearing completion. Finished painting on the cylinder baffles they will go on as time permits. Lots of small jobs clamping mag leads, finishing valve covers and trying to figure out what to do with the exhaust, was thinking about high heat black but may leave it in it's natural state. Propeller is progressing, blades have been weight matched polished and painted, just need a bit of help from a buddy who is more current than me at assembly.

http://www.enginehistory.org/BBimages/WilcoxJ/P1080911.jpg
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http://www.enginehistory.org/BBimages/WilcoxJ/P1080919.jpg
http://www.enginehistory.org/BBimages/WilcoxJ/P1080920.jpg
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jwilcox



Joined: 11 Mar 2010
Posts: 83
Location: Fredericton NB Canada

PostPosted: Fri May 23, 2014 15:33    Post subject: Reply with quote

The engine is just about complete now with just a few ignition leads, clamps and a few minor things to do. Propeller is also assembled to the point it needs to be before instillation on the engine. Had some help from a friend more current on the prop than I and it went well. A photo included of one exhaust segment, I cleaned it with PPG DX533 metal prep and a scotch brite pad then painted with a high heat (exhaust) spray bomb. Then because I can't bake it I went over it directly on the paint with a propane torch then rubbed it down with a towel. Surprised at the finish and think it's what I'll try for them all. Trailer construction has started but no photos yet. Another item I've been wondering about is oil, a donation today by a friend and local private airport operator has alleviated that concern.

http://www.enginehistory.org/BBimages/WilcoxJ/P1080929.jpg
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http://www.enginehistory.org/BBimages/WilcoxJ/P1080952.jpg
http://www.enginehistory.org/BBimages/WilcoxJ/P1080954.jpg
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jwilcox



Joined: 11 Mar 2010
Posts: 83
Location: Fredericton NB Canada

PostPosted: Thu Jun 05, 2014 20:35    Post subject: Reply with quote

Work continues on the 2600 project but the focus for the last while has been the trailer. A first attempt at a air intake for the engine but mostly the engine has been sitting for the last few weeks. There's about 40hrs of hands on work in the trailer so far and quite a few design hours prior to that and it's going well. More and more folks are wanting to see it run, guess we had better keep at it.

http://www.enginehistory.org/BBimages/WilcoxJ/P1080980.jpg
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http://www.enginehistory.org/BBimages/WilcoxJ/P1090001.jpg
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http://www.enginehistory.org/BBimages/WilcoxJ/P1090008.jpg
http://www.enginehistory.org/BBimages/WilcoxJ/P1090009.jpg
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rwahlgren



Joined: 15 Aug 2003
Posts: 134

PostPosted: Sat Jun 07, 2014 21:42    Post subject: Reply with quote

Very nice job you guys are doing. Could you post the brand and color of paint your using? Is it spray can's or ? Is that the original factory colors? Real good job cleaning stuff up.
Curious what you used for preservative oil on the inner parts during the build up.

The trailer looks good, except I'd be a bit concerned about that one weld joint carrying all the engine weight and running loads. If it was mine I would have used a thicker and possibly rectangular material for that support frame. Was it designed using FEA? And a big thanks for all the pictures, very nice.

In this picture it shows a brace that supports the post that the QEC engine mount attaches to, its in the rear.
http://www.enginehistory.org/Museums/SeattleMoF/4360%20engine.JPG


Last edited by rwahlgren on Sun Jun 08, 2014 22:06; edited 1 time in total
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jwilcox



Joined: 11 Mar 2010
Posts: 83
Location: Fredericton NB Canada

PostPosted: Sun Jun 08, 2014 19:14    Post subject: Reply with quote

Thanks for your comments, we are having a great time with this project. The paint is not original colors, I looked around the net for TBMs that were being rebuilt and had engine pics. Finally just went to the paint shop and found what I liked. The supplier is Sherwin Williams, I primed everything with their epoxy primer and then the single stage color. The grey is 50575 Dark Grey and the silver just says S4A, code from some vehicle I suspect. I had them put some silver in spray bombs so it was easier to use on the cylinders but the rest were all mixed and sprayed the conventional way. There's also many blacks to choose from but most all look the same to me.
As for assembly lube I have for years used a mixture of 50/50 aircraft engine oil, usually Aeroshell 100 and STP. The STP is very sticky and makes a mixture that stays put for a long time in an engine that may sit for a while.
You are bang on about the trailer upright, my son is the designer and a Mechanical Engineer. He has said several times that the joint you mention is the critical one and has taken measures to make sure it's up to the task. We are still planning some sort of support/cradle just for traveling but no final decisions on that yet.
I'm planning to build my own fuel and oil tanks, based on a 5 to 10 minute run I'm thinking a 20 gallon oil and 15 gal fuel. The oil tank would need a bit of air space so will probably run at about 18 gal. Does this sound reasonable?
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rwahlgren



Joined: 15 Aug 2003
Posts: 134

PostPosted: Sun Jun 08, 2014 22:16    Post subject: Reply with quote

That paint is much better than original stuff. Back in the day it was likely an air dry / bake enamel. How did you deal with the 2 part paint and the nasty isocyonates its suppose to give off.
So were you able to purchase new gaskets etc. or did you have to make them? How about bearings, are they the old ones or new? And for the parts that are chromed did you have them rechromed? Maybe I missed that info in this thread. You've done a beautiful job on everything, including the photos and write up. You minds well write a book on restoring the R2600 now, I'm sure Kim would give you some help.

I quickly looked back through some of the pictures, did you not split the crankcase?
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jwilcox



Joined: 11 Mar 2010
Posts: 83
Location: Fredericton NB Canada

PostPosted: Mon Jun 09, 2014 16:12    Post subject: Reply with quote

I think the best paints were a few years ago, the best I've used was PPG Delstar, but due to chemical regs and the like I don't think you can get it anymore. I find I have to be much more careful spraying the new stuff to avoid problems. I just use a good commercial respirator but change the cartridges often. Also do not use the real bad stuff like Imron, alumigrip and other true two part paints.
As far as gaskets go we both bought and made, The Curtis Wright Store in CA has a great supply of NOS stuff at very reasonable prices, also bought some top rings and bolts from them. The only chrome is the ignition ring, we were lucky as it was on the engine from overhaul. The other shiny stuff is mostly many hours of polished aluminum. The main bearings in this engine are massive rollers, we could see enough of them to be satisfied that they were ok and both master rods and all the link rods feel good on their big ends so we decided not to take it apart that far. The other factor in favor was the fact that the engine did not suffer an internal failure, it stopped, it's thought, due to a carb/fuel problem and only has 218hrs since overhaul. there was no metal at all in the sumps or screens and we found no mechanical defects on our tear down except what was done on impact and since by mother nature.
Adding a photo of a NOS piston I acquired today from a friend, an amazing piece that almost looks like it should be art not an engine part. Also a couple of the day our engine stopped, notice the blades are bent back, a good sign the engine was stopped or at least just wind milling.

http://www.enginehistory.org/BBimages/WilcoxJ/P1080921.jpg
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http://www.enginehistory.org/BBimages/WilcoxJ/P1090092.jpg
http://www.enginehistory.org/BBimages/WilcoxJ/P1090094.jpg
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rwahlgren



Joined: 15 Aug 2003
Posts: 134

PostPosted: Thu Jun 12, 2014 13:02    Post subject: Reply with quote

I looks like that piston was polished. That finish on the skirt area would not be good for lube oil retention. Whats the Curtis Wright store name?
Bearings ?, since it had all that rust in other areas, I was just wondering what the journals would be like.
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jwilcox



Joined: 11 Mar 2010
Posts: 83
Location: Fredericton NB Canada

PostPosted: Thu Jun 12, 2014 15:03    Post subject: Reply with quote

Sorry about that I think they go by Curtis Wright Store on Ebay but the company name is Carl Skinner Company, Ventura CA. The piston is indeed polished but that's the way it was, it was still wrapped in brown oil paper coated in cosmolene (or whatever that gooey stuff is called) and in a fancy box. The rust in the engine was from humidity not pooled water so any surface that was open to air and set long enough for the oil layer to go away was subject to corrosion. Any area such as bearing areas on shafts and gears that fit with a few thou clearance retained oil and was not subject to the air/humidity. There would be corrosion on the gear face but none at all on the stub that support the gear in a bearing/bushing, this was common through ought the engine. There also is a cone shaped plug in the center of the crankshaft that is removable to inspect inside the crank, all looked good in there. Had this engine set for a few more years it surely would have been at best a static display, at worst scrap. We're still planning on it being a runner.
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