Search found 656 matches

by Tony Collins 1073
December 2nd, 2017, 1:04 am
Forum: Technical Help required
Topic: Custom in cowl exhaust fabrication?
Replies: 3
Views: 201

Re: Custom in cowl exhaust fabrication?

Not a lot of room up the front is there?
Maybe somerthing like this could interest you as an alternative.

https://www.youtube.com/watch?v=nDScZ3Xvibg
by Tony Collins 1073
November 5th, 2017, 11:14 pm
Forum: Technical Help required
Topic: Prop size on a Zenoah 26 in a WW1 bipe?
Replies: 12
Views: 270

Re: Prop size on a Zenoah 26 in a WW1 bipe?

Hi Martin. The main reasons that a magneto engine is difficult to start could be the magneto air gap, and/or the cranking speed. The voltage generated will be too low to create a good spark if it is not turned over fast enough. There is a technique to swinging a mag engine which some may find not to...
by Tony Collins 1073
October 30th, 2017, 9:53 pm
Forum: Technical Help required
Topic: Flair 1/4 scale DR1 control throws?
Replies: 7
Views: 240

Re: Flair 1/4 scale DR1 control throws?

Before you cut any wires, just make sure that it hasn't got mechanically set differential on each aeleron.
by Tony Collins 1073
October 28th, 2017, 8:33 pm
Forum: Jets
Topic: Jet pipe material
Replies: 7
Views: 292

Re: Jet pipe material

by Tony Collins 1073
October 28th, 2017, 1:05 pm
Forum: Electric Stuff
Topic: ferrite rings
Replies: 2
Views: 149

Re: ferrite rings

Hi Arthur. Although I have never used a powerbox kill switch, the reason for glitches is normally that RFI is getting back into the receiver through the powerbox to receiver signal lead. The normal procedure would be to place your ring on receiver plug lead close to the receiver. It won't hurt to pu...
by Tony Collins 1073
October 8th, 2017, 9:38 am
Forum: The Old Forum Lounge
Topic: Fun stuff goes here.
Replies: 1117
Views: 219266

Re: Fun stuff goes here.

. b1.gif . b2.gif . Two brooms were hanging in the closet and after a while they got to know each other so well, they decided to get married. One broom was, of course, the bride broom, the other the groom broom. The bride broom looked very beautiful in her white dress. The groom broom was handsome a...
by Tony Collins 1073
September 30th, 2017, 8:04 am
Forum: Technical Help required
Topic: Engine/silencer joint repair
Replies: 10
Views: 352

Re: Engine/silencer joint repair

Hi again Barrie, just a thought. Not all ignition systems are timed the same. Here is an extract from one of the forums which is relative to your engine ignition system. Only one small thing - the thor 45 manual states the timing for the original ignition as 12 to 14 degrees not 18 degrees BTDC. Ret...
by Tony Collins 1073
September 29th, 2017, 7:35 pm
Forum: Technical Help required
Topic: Engine/silencer joint repair
Replies: 10
Views: 352

Re: Engine/silencer joint repair

Barrie, the method I use to secure my pitts silencer involves a bit of technowelding. The enlcosed pictures are self explanetary. It really isn't very difficult. Just research on youtube and do a little practice first. Thread the rod one end and make a shape to fit the silencer on the other. use a c...
by Tony Collins 1073
September 29th, 2017, 3:27 pm
Forum: Technical Help required
Topic: Engine/silencer joint repair
Replies: 10
Views: 352

Re: Engine/silencer joint repair

Barrie, the ignition should fire just as the magnet is exiting past the sensor.
How do you intend to to determine how many degrees advance that is?
by Tony Collins 1073
September 29th, 2017, 2:19 pm
Forum: Technical Help required
Topic: Engine/silencer joint repair
Replies: 10
Views: 352

Re: Engine/silencer joint repair

Barrrie if you get the flange as true as possible and the indentations do not run from the exhaust port inner to the edge of the flange I think you will get away with it because the silicon will fill the recesses. Running rich may cause some vibration but not overheating. Just make sure that your ig...
by Tony Collins 1073
September 29th, 2017, 1:23 pm
Forum: Technical Help required
Topic: Engine/silencer joint repair
Replies: 10
Views: 352

Re: Engine/silencer joint repair

Name of engine Barrie ? The pitts silencer should not melt with a normally running engine. Period. I have a theory about using exhaust gaskets which I put into practice. The ends of the exhaust flange when tightened will compress the gasket more than at the centre resulting in bowing eventually. It ...
by Tony Collins 1073
September 29th, 2017, 1:00 pm
Forum: For Sale or Wanted
Topic: wanted twin petrol engines
Replies: 8
Views: 952

Re: wanted twin petrol engines

Thanks for the link Paul. I've just grabbed it. Thought I'd finished with Weslake 342 engines
but couldn't resist this one. :D
by Tony Collins 1073
September 25th, 2017, 6:51 pm
Forum: pete - tbobborap1
Topic: pete - tbobborap1 at the lma elvington show - 2017 (video thread)
Replies: 15
Views: 699

Re: pete - tbobborap1 at the lma elvington show - 2017 (video thread)

Hi Pete. This Aircraft was built by my old mate and probably the most prolific large model builder in the LMA, namely Ian Turney White. He has just finished a complete refurb on this very old model - I think maybe 20 to 25 years at least. If you wish to contact him his details can be obtained from m...
by Tony Collins 1073
August 25th, 2017, 7:58 am
Forum: For Sale or Wanted
Topic: wanted - Texan AT 6
Replies: 40
Views: 2894

Re: wanted - Texan AT 6

???????
magic-beans-1.jpg
magic-beans-1.jpg (58.69 KiB) Viewed 685 times
by Tony Collins 1073
August 23rd, 2017, 4:28 pm
Forum: For Sale or Wanted
Topic: wanted - Texan AT 6
Replies: 40
Views: 2894

Re: wanted - Texan AT 6

OY...! Watchit Crotchet.

No lowering the tone of 'FSGH' if you don't mind :lol: 8-)
by Tony Collins 1073
August 7th, 2017, 1:21 pm
Forum: Technical Help required
Topic: Thor 45cc Engine problem
Replies: 25
Views: 1557

Re: Thor 45cc Engine problem

Steve, The TDC of and therefore the approximate timing is predetermined by the location of the sensor on the engine and the position of the magnet on the hub Most sensors will operate as they will only switch when told to. One exception that I know of is the Roto ignition system sensor. The Roto ign...
by Tony Collins 1073
August 6th, 2017, 8:41 pm
Forum: Technical Help required
Topic: Thor 45cc Engine problem
Replies: 25
Views: 1557

Re: Thor 45cc Engine problem

Steve , whatever ignition module you use couple it with the sensor that came with it then you cant be wrong. Most sensors are set around 28 to 30 degrees Before Top Dead Centre but if you just fit it centrally for the test, the engine should run well enough to see if the fault has gone. Good luck an...
by Tony Collins 1073
August 6th, 2017, 1:29 pm
Forum: Technical Help required
Topic: Thor 45cc Engine problem
Replies: 25
Views: 1557

Re: Thor 45cc Engine problem

Shot in the dark here Steve. If you have a spare ignition module or can borrow one from another model swap it over. Also try a different ignition battery. A battery checker doesn't always tell you the whole story. Our chairman can vouch for that. If no difference then we will have to dig a little de...
by Tony Collins 1073
July 4th, 2017, 7:35 pm
Forum: Technical Help required
Topic: Thor 45cc Engine problem
Replies: 25
Views: 1557

Re: Thor 45cc Engine problem

And finally if you want to make your own metering lever gauge tool follow this link:-

http://www.wind-drifter.com/technical/WalbroGage.pdf
by Tony Collins 1073
July 4th, 2017, 6:38 pm
Forum: Technical Help required
Topic: Thor 45cc Engine problem
Replies: 25
Views: 1557

Re: Thor 45cc Engine problem

If you care to study this lot I think it will help you no end. http://www.wind-drifter.com/technical/wg8walbro.php https://www.helifreak.com/showthread.php?t=326599 http://www.walbro.com/wp-content/uploads/2016/01/WYKseries.pdf http://www.footflyer.com/fix/motor/carburetor/walbro.htm http://www.foot...

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