Guildhall Fun Flyers Forum

Welcome to our forum. Feel free to post a message.

Guildhall Fun Flyers Forum
Start a New Topic 
Author
Comment
View Entire Thread
.52 Surpass 4 stroke

I have a new project. Mike has given me an ill .52 Surpass that needs bearings. I will keep everyone up to date as I tear down and go through it. I will be using the standard bearings that Boca sells for this engine.

.53 Enya

Well, the charity engine work seems to be picking up. Joe has awarded me his rather ill .53 Enya with a wobbling crankshaft to do some service work on. I will call Boca and order their standard bearing kit so we can get going. I cant stress enough to oil these 4 strokes HEAVILY when you put them away and make sure you run them out of gas at wide open throttle to make sure the crankcase is as clear as possible.

52 surpass 4 stroke

Well............. it needs more parts. This engine has typical off season storage rust that has accumulated and damaged parts over at least a few years. The cam and followers are not within service specifications and need to be replaced. The cost for the cam and followers are about $42.00 from Tower. I have e-mailed Mike and await his reply about the rebuild. It will need bearings but after a rebuild it should have significantly more power than it did before. remember that off season oil!!! Good thing you guys don't pay labor this one was not easy to disassemble.

.53 enya

I have just picked up a new victim. Nelson Fontain has dropped off his .53 with excessive crank play. Bearings have been ordered for all three current engine projects. I have'nt torn this one down yet but will do so very soon. I will update everyone as to the condition and how it runs afterward. For those Enya nuts out there you can still buy Enyas, you just need to do it direct to Japan. Go to www.enya-engine.com to look at all of the engines and parts available. There will be no more distributors for Enya products.

Re: RC engine work

Bearings have arrived........... I have bearings for the enya engines and I have ordered the front and rear case gaskets as these two engines will need them. The first one I opened was Nelson's Enya and the gaskets shreaded themselves which is actually unusuall for the Enyas. The paper gaskets are usually a waxy type paper that sticks to the case or case cover then peels away cleanly from the other surface. The bummer is I had to order the gaskets from Japan directly . Hope I see them soon. I havent seen parts for Mikes Surpass but hope to have the parts soon. That one is out of the dip tank and looking brand new. The bearings in Mikes Surpass were some of the worst I have ever seen. Whoever had it before Mike bought it ran it and stored it with fuel residue for a long period of time. I will repost when I have them running.

Re: RC engine work

Poppys .46 Enya and Joe's .53 Enya are all done. Mikes .48 Surpass was sold to me and I will eventually get around to it.
Poppys was straight forward with bearings and gaskets. Joes had a failure on the rear bearing and had done some damage to the cam gears and housing. ITS IMPORTANT TO CATCH BAD BEARINGS EARLY. I was able to file the cam teeth a little and cleaned them up. The housing had to be sanded out to clear the gears as they were scored pretty bad. Harry has one next to do.

Till next time

Re: twin Saito .30s

Just to let everyone know so they can improve their own troubleshooting skills. One of our members has a twin engine plane that he is flying and enjoying very much. Prior to his enjoyment he was not having a good time. He had purchased a few new .30 Saitos (not cheap). I dont have to remind everyone how much I dont care for Saito engines but this was a case of poor quality and damaged parts combined. One engine had bearings that seemed to be set on the crank and case in the wrong position and caused the crank to bind and feel tight. The other poor running engine had a cracked intake manifold. After replacing the parts that were damaged and resetting the bearings in the case properly they both run very well. With some tuning and break in time they will just get better and better. Moral of the story? There is always a reason they run poorly, be persistent and ask questions of what you are looking at. If all else fails ask someone else.

Re: 48 surpass

Harrys .48 surpass is back in his plane and runnign well as far as I know. I flew a few flights with him the other night. It had the typical bearing woes seen from time and fuel attacking the bearings. Four strokes are much more critical due to the cam bearings that are very small and usually in a poor location to get enough oil. I run HELI in all of my four strokes and have good luck. It usually has 20% or better oil content and assures you get good bearing oil to those small bearings. Harrys .48 must be about 15 years or better old and had held up well but it started to become unreliable and you could feel crank play so it was time for a set of bearings. Glad his engine is up to snuff and I have his other .48 ready to disassemble and rebearing soon.

Re: RC engine work

I have the bearings and the screws for Harry Irvings second .48 Surpass that was ill. I will rebuild this one and hopefully Harry can mount it and use it again. His first .48 that was rebearinged runs like a new engine. It hauls his Kadet Senior ARF around with ease. Its one of my favorite planes of Harrys to fly. I will repost when this one is done.

Re: RC engine work

Joe Hoey dropped off a small .29 Enya that didnt need any work and a Royal .40 that is brand new and locked up tighter than you know what. I hope to be able to free it up without damage and get it fired up for Joe. It will need a complete tear down and reassembly. I would say 20 years of storage on "new engine" fish oil didnt help. The new engine storage oils that come on many engines isnt very good. Left in the humidity over the years they will lock up solid with rust. I would say thats what happened to this one.

Re: RC engine work

I just got an antique Super Tiger 56 back from Rusty that he disassembled and went through. This engine has sat idle for the last forty plus years. It was in surprisingly good shape and showed very little use. We put it on a test stand and it fired right up and ran like a top. I'll post some pictures of the engine in the "Show it Off" section of the site. A big thanks to Rusty for the service he provides.

Neal Wells

Re: RC engine work

Thanks for the nice words Neal. It was a pleasure to work on such a valued family treasure. Its also the first Super Tigre "56" that I ever worked on. After stripping it down and looking at it I was surprised. The quality was amazing and I was impressed with how it throttled. I have seen modern engines that didnt throttle up and down as well as this one. Its a bit on the loud side but hey so are Harley Davidsons and people like them just the same. Have fun with it this summer. Thanks again.