Stephen Grigg Posted July 25, 2009 Share Posted July 25, 2009 From a thread created by one Chris Scott I travelled to Sittingbourne in Kent last evening and purchasedthese models.I unpacked them this morning,and made a plan.My instructor came in and made the right plan.Im starting with a Yamamoto Trainer Quote Link to comment Share on other sites More sharing options...
Stephen Grigg Posted July 25, 2009 Author Share Posted July 25, 2009 He thinks the seized motor is a Webre I want to remove that first to get it soaking.He has suggested I start with the Yamamoto ,the model in the 1st 2 photos or the trainer in the 3rd and 4th photos.The 5th and 6th are the model called Stringalong Quote Link to comment Share on other sites More sharing options...
Ben Mullins Posted July 25, 2009 Share Posted July 25, 2009 EIGHT! You like refurbishing things don't you Stephen . After your treatment I bet they'll look great and be flying wonderfully. That Bipe looks interesting. Whats with the two glow plugs in the engine though? Quote Link to comment Share on other sites More sharing options...
Stephen Grigg Posted July 25, 2009 Author Share Posted July 25, 2009 Hi Ben apparently the glows werent that good in those days so by using 2 it improved the performance of the engine.You started on 1 glow and then activated the 2nd one with the glow start,good if a glow failed,you had back up Quote Link to comment Share on other sites More sharing options...
Ultymate Posted July 25, 2009 Share Posted July 25, 2009 From What I can see it's a twin plug Merco 61, you just fire it up on one plug the other then glows with the heat of combustion no need to give it any feed from a glow start Quote Link to comment Share on other sites More sharing options...
Stephen Grigg Posted July 25, 2009 Author Share Posted July 25, 2009 !00% correct Ultymate now Ive the cowl off that is the very engine. Quote Link to comment Share on other sites More sharing options...
Stephen Grigg Posted July 25, 2009 Author Share Posted July 25, 2009 Yamamoto wing claned up ,removed engine from .Top quality engine mountStringalong Quote Link to comment Share on other sites More sharing options...
andy watson Posted July 25, 2009 Share Posted July 25, 2009 Interested in some details and photos about the strip down and cleaning of the engines. Quote Link to comment Share on other sites More sharing options...
Ben Mullins Posted July 25, 2009 Share Posted July 25, 2009 I too would be interested in how you do it. I've got a tip for you, use CIF kitchen cleaner to clean the exterior of the engine, works a treat. Quote Link to comment Share on other sites More sharing options...
Tim Mackey Posted July 25, 2009 Share Posted July 25, 2009 I have in the past used the washing powder and pan of water method. Strip of as many parts as possible, and bung the lot into an old pan filled with water and a dishwasher / laundry washer tablet. Bring to the boil, and watch the grime magically float off. Agoitate the more stubborn areas with an old toothbrush, and thenn let the lot cool off and dry thouroughly. Lube it all well with WD40 or similar, and wipe off the surplus. Reassemble, slosh a bit of 3in1 oil inside, and allow tghe surplus to drain off through the plughole - fit a nice new shiny glowplug, and its as good as new. Quote Link to comment Share on other sites More sharing options...
Big Bandit Posted July 25, 2009 Share Posted July 25, 2009 Hi All, Fairy power spray, works like magic. I use an old tupper ware box and iether strip the engine or just drop it in whole and spray the thing with power spray. Leave for about 15 minutes. take out the parts or whole engine and rinse off in warm water. For really stuborn grot do it again and scrub with a tooth brush. Leave to dry. Rebuild using afterrun oil !, you did remember to mark the position of the mating parts didn't you. or in the case of a fully built clean, make sure the glow plug has been removed, after run oil in the exhaust port and inlet, then turn over by hand and leave it for half an hour. WD 40's OK for repelling moisture, but if thats all you use it will still gum up again if left for any length of time, and 3in1 is a definated nono if you intend to leave the engine unrun for any length of time.Clamp it in the test bed and play. don't forget the after run oil before laying it up again.Don't use any abrasives. Cheers, Chris. Quote Link to comment Share on other sites More sharing options...
Stephen Jones Posted July 25, 2009 Share Posted July 25, 2009 Hi,Why is 3 in 1 oil a no no i`am curious Quote Link to comment Share on other sites More sharing options...
Stephen Grigg Posted July 25, 2009 Author Share Posted July 25, 2009 Thanks for the tups guys,Ive taken the head off but the piston is solid.,The engine has come apart quite easiy the back plate is stuck at present but Ill give it a soak tomorrow.All the other engines turn over fine.The models are built very well and feel a bit heavy.But I think they have been built in a normal way for the age they are.Im missing the stays between the wings for 2 biplanes but I have the plans for 2 bipes as well.hoping thry are the right ones.One is for the Stringalong so that will not be a problemI ought to write a list of the models and work on them in that order but the Stringalong is the 1 I want to get done first,and my instructor wants me to do the roughest trainer first,so the trainer will be 3rd Quote Link to comment Share on other sites More sharing options...
Former Member Posted July 25, 2009 Share Posted July 25, 2009 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
Stephen Grigg Posted July 26, 2009 Author Share Posted July 26, 2009 I think your right Eric,Ill give it a try thankyou Quote Link to comment Share on other sites More sharing options...
Big Bandit Posted July 26, 2009 Share Posted July 26, 2009 Stephen, Over time it turns to a sticky gum, I used to use it in the 70's. Clean an engine lube it and lay it up. Come to turn it over 6 months down the line and it's solid again. Good quality light machine oil is better. Cheers, Chris. Quote Link to comment Share on other sites More sharing options...
Stephen Jones Posted July 26, 2009 Share Posted July 26, 2009 Bandit, I use 3 in 1 oil after each flight i guess this is ok . I have cleaned up some of my old engines using the boiling method then sealed them up with 3 in 1 oil then put into a plastic bag then into a plastic container guess i`m going to have to replace the oil Quote Link to comment Share on other sites More sharing options...
Mowerman Posted July 26, 2009 Share Posted July 26, 2009 Eric Shouldnt that be cilit 'BANG' I hated that TV advt. Quote Link to comment Share on other sites More sharing options...
Stephen Grigg Posted July 26, 2009 Author Share Posted July 26, 2009 Ive removed the back plate and carb,now I need to soak it.Ive found a suitable container,the wheel centre from a Shogun.There is a bit of black in there but quite clean.Ivr removed the top,Ithink the next part would come off,it has 2 lengths of head screws,which indicates this,but I think this is what the piston is stuck in,so haveni tried to remove it yet.The carb is also seized as well. Quote Link to comment Share on other sites More sharing options...
Stephen Grigg Posted July 26, 2009 Author Share Posted July 26, 2009 My instructor mate arrived today and he has taken a bi plane thats very up together the engine looks good,so he is going to fit replacement servos and radio, hope to have it ready for next week Quote Link to comment Share on other sites More sharing options...
Stephen Grigg Posted July 26, 2009 Author Share Posted July 26, 2009 Pic 1 is back plate removed,pic 2 is looking at head removed and you see the top of the piston Ive now removed the carb and its soaking Quote Link to comment Share on other sites More sharing options...
Simon Roberts Posted July 26, 2009 Share Posted July 26, 2009 You got a really nice collection there mate, im still trying to get my cousin to hand over all his old gear! He has a lot of stuff he never flew including an interesting Bi-Plane (this is all a good 25 years old), He says can have it all but just doesnt seem to be "in" when i suggest i come round haha. Quote Link to comment Share on other sites More sharing options...
Stephen Grigg Posted July 26, 2009 Author Share Posted July 26, 2009 Frustrating,when I unpacked everything it was a bit of a shockas to the task ahead,but once Id made a mental list today has been clearer.Model aircraft are built to fly.This is the direction yourcousin needs to think.Is he someone who built without intending to fly,or did he retire and just wont let go? Quote Link to comment Share on other sites More sharing options...
Big Bandit Posted July 26, 2009 Share Posted July 26, 2009 Stephen, Just looked at the pic's. The carb is a plastic Perry by the looks of it, be very carefull how you clean it. Years ago a mate of mine tried to clean a similar carb from a Veco 19 car engine, I think he dipped an old tooth brush in petrol and tried that way. The carb turned into a molten blob, a whole load of stuff that works on other types of carb may have the same effect. The rubber o rings are a pain as well. Cheers, Chris. Quote Link to comment Share on other sites More sharing options...
Myron Beaumont Posted July 26, 2009 Share Posted July 26, 2009 Stephen & BB Another tip NEVER use WD 40 on plastic parts (unless you know different 'cos there are many different plastics of course ) I remember spraying the battery case on a Futaba Tx to prevent corrosion of terminals (back in the old days again) The whole thing changed shape under the pressure of the sprung load . Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.