Author Topic: A little info please (Read 3891 times)

Bill Gruby · « **on:** April 01, 2007, 07:57:27 AM »

Ok 1/2A Fanatics;

What can you tell me about a VA .049. No this ain't an April Fools joke. I have a few hours to gather info on this critter before it is gone.

"Billy G"

Bill Gruby · « **Reply #1 on:** April 01, 2007, 08:01:36 AM »

Bump to top, I bumped cause I didn't want it to get lost I don't have much time

"Billy G"

Bill Little · « **Reply #2 on:** April 01, 2007, 08:15:33 AM »

A hot Russian made .049. One version had the cylinder made in a way to make altering the timing easy. "RYOT" .... "Roll" your own timing.

Strong, like a "Hot" Norvel. Dan Rutherford had something to do with importing them, IIRC. I always heard they were good .049s.

Bill Gruby · « **Reply #3 on:** April 01, 2007, 08:27:10 AM »

Thanks Bill

Now for use, is it just for speed or can it have other applications? Maybe it is just a collectable?

"Billy G"

Coffee #2 goin

Bill Little · « **Reply #4 on:** April 01, 2007, 08:39:21 AM »

I have seen them in use with 1/2A Stunters. The "Little Legend" Series drawn by Steve Buso (and the original 1/2A Prowler, IIRC) used them. Prop them accordingly.

Bill Gruby · « **Reply #5 on:** April 01, 2007, 08:42:23 AM »

THAAAAAAAAAAAANK- YOU Bill

I have what I need now I will own one in a few more hours.

"Billy G"

minnesotamodeler · « **Reply #6 on:** April 01, 2007, 12:18:14 PM »

I have 2 of them, Bill, and they will just about keep up with a Norvel .061 and that's saying a lot. They do like smaller props (5" or smaller) and will really squeal. Easy to start & needle. I've only run mine on pressure so far but plan to see how well it draws fuel on suction as soon as the weather cooperates. Only problem is that rear exhaust is kinda awkward to build around. Nice little engines though. I haven't got a lot of time on them yet but so far I like them a lot.

--Ray

Bill Smith · « **Reply #7 on:** April 01, 2007, 01:57:55 PM »

I am not fond of the earlyest va's they're the ones with the split case.

Bill Gruby · « **Reply #8 on:** April 01, 2007, 02:24:58 PM »

Bill;

Thank-you; The one I am after does not have a split case. I was told the same thing this afternoon by a Modeling friend who flys 1/2A Free Flight.

"Billy G"

After taking a another look at this engine and blowing it up 200% it shows what looks like a rivit or bolt at the rear on the flange. Does this make it a split case, I can see no joint line. It also states "RYOT" is this good or bad?

Bill Little · « **Reply #9 on:** April 01, 2007, 02:51:40 PM »

The RYOT was to alter timing. I am not fully sure but it had to do with lowering or raising the cylinder, IIRC. It could be tamed down somewhat from a combat to more of a "sport" engine. Well maybe not THAT far, but timing could be changed. Dirty Dan was importing them for 1/2A combat in the beginning.

Bill Gruby · « **Reply #10 on:** April 01, 2007, 03:59:12 PM »

Bill;

Blowing up the paperwork it does show "Dan Rutherford" as the importer. If anyone cares to take a fast peek it is item #280098863770 on the Bay. There are 2 hrs left.

"Billy G"

Bill Smith · « **Reply #11 on:** April 01, 2007, 04:12:49 PM »

that is the split case. if you look at the back there is no way to remove the crank. you adjust the timming buy taking the piston apart and adding shims. and the compression with head shims. they run fast but you can get case leaks.
they do run fast but they are not good for stunt, it works on a bladder.

Bill Gruby · « **Reply #12 on:** April 01, 2007, 04:20:21 PM »

OK Bill;

I'm all set now, my specific target use is 1/2A Combat this should be the cats' butt.

"Billy G"

don Burke · « **Reply #13 on:** April 01, 2007, 05:20:01 PM »

On the early VAs the crankcase top and bottom halves are held together with a screw at the back and by a threaded collar behind the prop driver. The collar has a couple of notches in it's trailing edge that are for a spanner wrench. The collar could be used to push the drive washer off the end of the crank, although I don't know if that was the approved method.

I have a couple I used in FF, mid 90s. The crank is very thin and an electric starter was not recommended, ask me how I know!

Bill Gruby · « **Reply #14 on:** April 01, 2007, 06:22:12 PM »

To all involved;

This is what this "Forum" is all about. It's to bad that more people don't get around this "Forum" more. With your help and vast knowledge of this engine I made a decision to go ahead and bid on it. My low bid prevailed and I now own the engine. I am looking forward to having a lot of fun with it . Thanks again to all of you for your time, effort. and knowledge.

"Billy G"

dennis lipsett · « **Reply #15 on:** April 01, 2007, 06:28:58 PM »

Quote from: Bill Gruby on April 01, 2007, 04:20:21 PM

OK Bill;

I'm all set now, my specific target use is 1/2A Combat this should be the cats' butt.

"Billy G"

Bill,
I have a few of those and you can set them up to run stunt. Most owners of these motors never did see the multi page pamphlet that Rutherford put out after the motor was introduced. There was a wealth of info in it and I have it somewhere in my files. Yes the case could leak if put together wrong. It also did benefit from a careful lapping, nothing too difficult for anyone used to working around motors.
I know that I have 3 of them and one is new never run. Alas no boxes for them but such is life. If your a collector that ruins it doesn't it.I actually planned to run all of them and did 2 of them with great success. Also got my buddies motor that he bent the rod on. This was after the MK 2 was introduced and was being sold by Larry Driskoll. Anyhow The Dirt kindly sent me parts and even more then I needed to put that one back in use. However my old flying buddy passed away so I keep it for sentimental reasons and it won't get flown again.
Oh and most of the running for stunt would be with an APC 6/2. I ran mine on bladders though.
Dennis

minnesotamodeler · « **Reply #16 on:** April 03, 2007, 02:11:02 AM »

Update: My VAs must be later, they are one-piece cases, rear exhaust--Mk 2s? They run very strong, nice for combat. I did manage to get one running on draw today, on a test stand, but I'm not sure how well it will do it in maneuvers--needle had to be WAY out. I think it's just happier on pressure. Maybe a venturi restricter would help. I'll be messing with it some more.

--Ray

Bill Gruby · « **Reply #17 on:** April 07, 2007, 02:34:22 PM »

OK-----
Tried to post and it dissappeared? VA .049 arrived today. This little thing is SWEET. It is a split case but the machining is superb, I see no problems ahead. I am going to read info tonight and run it tomorrow on pressure. Thanks again for all your help.

"Billy G"

Robert McHam · « **Reply #18 on:** April 07, 2007, 04:42:50 PM »

Dontcha just love a new toy?

Robert

Bill Gruby · « **Reply #19 on:** April 07, 2007, 05:12:21 PM »

Bob;

You are soooooooooooooo right I put it back in the box at least a couple of dozen times now.

"Billy G"

minnesotamodeler · « **Reply #20 on:** April 07, 2007, 07:58:20 PM »

That means you took it out at least a couple of dozen times, minus 1...I know the feeling.

--Ray

Bill Gruby · « **Reply #21 on:** April 17, 2007, 12:55:03 PM »

All you 1/2 A guys;

I know you don't go to E*** for these things, been there. I bid $61.50 for 6 and LOST--- $10.00 a pop seems a little high? Where do you get the High Compression Glow Heads? Can I get a head adaptor to use short glow plugs?
Whatcha think can you help me out here?

"Billy G"

minnesotamodeler · « **Reply #22 on:** April 17, 2007, 03:23:05 PM »

Galbreath head, Nelson plugs. Cheaper on plugs, and enhanced performance as a bonus. Fits Coxes, Norvels, I think VAs, at lease the new ones, I guess Cubs since Cox heads will interchange with them. The heads are $10 (but a 1-time purchase of course), plugs are something like $3.50 or $3.75. They last forever. Everything runs better with it!

--Ray

Bill Gruby · « **Reply #23 on:** April 17, 2007, 06:03:32 PM »

Ray;

Thats what I'm lookin for ,where do I find them. Sorry this is new territory to me. Only reason I started with the VA .049 was the price. It really is one he## of a runner.

Billy G"

Douglas Babb · « **Reply #24 on:** April 17, 2007, 06:55:22 PM »

Kittingittogether.com or doug galbreath's website both have for sale.

Roger Vizioli · « **Reply #25 on:** April 17, 2007, 07:55:50 PM »

"Billy G"
Only one caution w/the Galbreath head. It is not a problem, just a user tip.
Put a small amount of Anti Seize lube on the steel plug thread before inserting it in the Aluminum head. Keep lube out of the combustion chamber.
Makes plug removal much easier. AMHIK

Roger

minnesotamodeler · « **Reply #26 on:** April 18, 2007, 03:20:24 AM »

Yes...what Roger said.