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Search: Posts Made By: robc57
Showing results 1 to 21 of 21
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Forum: Gas Engines
09-27-2016, 11:57 PM
Replies: 1,678
Views: 461,373
Posted By robc57

? I'm just going by the UK importer (Just...

? I'm just going by the UK importer (Just Engines) recommendations. Maybe I'll add a drop more oil to the 35:1 mix I've got left, exhaust residue doesn't seem a problem even on the short time...
Forum: Gas Engines
09-27-2016, 12:48 AM
Replies: 1,678
Views: 461,373
Posted By robc57

Mine only have around 45 minutes and an hour and...

Mine only have around 45 minutes and an hour and a half of running, it would be interesting to hear how many have clocked up significant hours without problem but I suspect you will only see posts...
Forum: Gas Engines
09-26-2016, 12:00 AM
Replies: 1,678
Views: 461,373
Posted By robc57

Mine has started as per BoBoeing's routine but...

Mine has started as per BoBoeing's routine but it's just easier and safer with a starter. Once it flooded but then started first spin with the throttle wide open.
Forum: Gas Engines
09-22-2016, 12:19 AM
Replies: 1,678
Views: 461,373
Posted By robc57

She ain't exactly pretty Ain't exactly small ...

She ain't exactly pretty
Ain't exactly small

Just thought I'd post a picture of my exhaust mod. A quick test with a cheap meter showed around 80dBa at 7M running a Fiala 19*8 at 7150rpm, and in...
Forum: Gas Engines
08-14-2016, 12:37 AM
Replies: 1,678
Views: 461,373
Posted By robc57

Where did you get the engine from, do you know...

Where did you get the engine from, do you know whether it originated from HK or JE? 3 or 4 turns out on the high speed needle just seems way out to me, I've not got a lot of petrol experience but...
Forum: Gas Engines
08-14-2016, 12:27 AM
Replies: 1,678
Views: 461,373
Posted By robc57

Using the supplied drilled and tapped alloy mount...

Using the supplied drilled and tapped alloy mount it comes to around 172mm or 6 3/4" from bulkhead to prop driver, though I guess you could move the engine back on the mount a shade but it would...
Forum: Gas Engines
08-07-2016, 01:58 PM
Replies: 1,678
Views: 461,373
Posted By robc57

Well, whatever the factory timing is yesterday my...

Well, whatever the factory timing is yesterday my second engine started first spin of the starter and ran it's first half tank on 20:1 with a Master Classic 18*6, no kick back on starting or audible...
Forum: Gas Engines
08-02-2016, 11:29 AM
Replies: 1,678
Views: 461,373
Posted By robc57

How are you determining top dead centre? I've...

How are you determining top dead centre? I've not measured my NGHs but 45 sounds wrong - my first engine starts and runs just fine with the hall sensor at the end of the slot range - that's moving...
Forum: Gas Engines
07-27-2016, 01:00 PM
Replies: 1,678
Views: 461,373
Posted By robc57

Out of the box mine had a vicious kick-back when...

Out of the box mine had a vicious kick-back when starting, I had to retard the ignition by about half the available range. Now it's a peach to run and I've just order another from Just Engines, who...
Forum: Gas Engines
07-27-2016, 12:58 PM
Replies: 1,678
Views: 461,373
Posted By robc57

Out of the box mine had a vicious kick-back when...

Out of the box mine had a vicious kick-back when starting, I had to retard the ignition by about half the available range. Now it's a peach to run and I've just order another from Just Engines, who...
Forum: Gas Engines
04-19-2016, 03:13 AM
Replies: 1,678
Views: 461,373
Posted By robc57

$22 or £15 is still steep for mailing gaskets!

$22 or £15 is still steep for mailing gaskets!
Forum: Gas Engines
12-16-2015, 03:06 AM
Replies: 1,678
Views: 461,373
Posted By robc57

My engine was a nasty biter on starting before I...

My engine was a nasty biter on starting before I retarded the ignition - maybe it has lost a couple of hundred RPM off the top but it made it a much nicer engine. It was bought earlier in the year...
Forum: Gas Engines
12-12-2015, 02:28 AM
Replies: 1,678
Views: 461,373
Posted By robc57

Try running a larger prop, something more like a...

Try running a larger prop, something more like a 19*8. I think this engine is happier at lower revs and vibes will be less of an issue, and going by Tyor's results you will get way more pull running...
Forum: Gas Engines
10-02-2015, 07:49 AM
Replies: 1,678
Views: 461,373
Posted By robc57

With the Just Engines adaptor and ASP180 muffler...

With the Just Engines adaptor and ASP180 muffler mine clocked 83dBa at 7M running an HK 18*8 wood prop, but I didn't record the revs. I've got to say that Ernestino's adaptor looks like a better,...
Forum: Gas Engines
09-20-2015, 12:02 AM
Replies: 1,678
Views: 461,373
Posted By robc57

What a beautiful flying site Alfiev, with the...

What a beautiful flying site Alfiev, with the mountain backdrop it looks a pretty cool place just to sit and chill out. Nice Waco too.
Forum: Gas Engines
09-10-2015, 12:28 AM
Replies: 1,678
Views: 461,373
Posted By robc57

I know the 9cc has a bad rep, but in my opinion...

I know the 9cc has a bad rep, but in my opinion the GF38 is a good engine for the money - at least it has been so far. It starts easily, runs as smoothly as you can expect from a big single, and the...
Forum: Gas Engines
09-09-2015, 06:18 AM
Replies: 1,678
Views: 461,373
Posted By robc57

Do you know what it will hit the UK at? Specs...

Do you know what it will hit the UK at? Specs would be nice to know, especially size and weight.
Forum: Gas Engines
08-27-2015, 04:16 AM
Replies: 1,678
Views: 461,373
Posted By robc57

I can see one of these in my future, I've had to...

I can see one of these in my future, I've had to retard the ignition on my engine to stop it kicking back when starting which has definitely affected the top end by around 200 rpm.
Adria, what sort...
Forum: Gas Engines
08-19-2015, 12:19 AM
Replies: 1,678
Views: 461,373
Posted By robc57

mine is in an Acrowot XL...

mine is in an Acrowot XL (http://www2.ripmax.net/Item.aspx?ItemID=A-CF008), 78" span aerobatic ARTF. It's got good club aero performance, not 3D style, but the engine's only had 6 tanks through it...
Forum: Gas Engines
08-15-2015, 12:25 PM
Replies: 1,678
Views: 461,373
Posted By robc57

Hi Doc, the one with a plug at the bottom of the...

Hi Doc, the one with a plug at the bottom of the pic is the filler, next is the tank vent and at the top of the pic is the crankcase breather:D
Forum: Gas Engines
08-15-2015, 01:26 AM
Replies: 1,678
Views: 461,373
Posted By robc57

2 tanks on the ground and half a dozen flights so...

2 tanks on the ground and half a dozen flights so far on my 38 and I have to say I'm VERY pleased with it, especially considering the price! I retarded the ignition as far as the slots allow which...
Showing results 1 to 21 of 21


 
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