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Search: Posts Made By: gerryndennis
Showing results 1 to 25 of 345
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10-13-2016, 08:40 PM
Replies: 17
Views: 2,135
Posted By gerryndennis

Hi Franchi, The 'standard' method is to...

Hi Franchi,

The 'standard' method is to increase the compression slightly (ie advance the ignition) to account for the increase in RPM when flying. If this leads to 'over compression' (ie over...
10-13-2016, 07:02 PM
Replies: 19
Views: 1,945
Posted By gerryndennis

Hi Franchi, Some engines naturally run...

Hi Franchi,

Some engines naturally run darker than others, likewise with some fuel blends.

So while an over compressed engine will always have a dark exhaust some under compressed or correctly...
Forum: Kit Building
09-06-2016, 05:00 PM
Replies: 8
Views: 890
Posted By gerryndennis

G'day Tlojak, Do some searching on here and...

G'day Tlojak,

Do some searching on here and over at 'groups'. Search for silk covering, wbpu (water based polyurethane minwax floor varnish), silk and dope, meniscus method etc. You'll probably...
07-20-2016, 12:29 AM
Replies: 18
Views: 3,659
Posted By gerryndennis

Hi Tim, I just reread my post. I...

Hi Tim,

I just reread my post.

I completely understood about your piston.

I'm sorry my post came across as trying to teach Grandma how to suck eggs, that's the opposite of what I was trying...
07-19-2016, 02:23 PM
Replies: 18
Views: 3,659
Posted By gerryndennis

That's interesting that OS didn't mark the...

That's interesting that OS didn't mark the piston, I've never seen an OS scneürle piston without the arrow so assumed they all had it.

I'm sure you're fully aware of the requirement for the con...
07-19-2016, 03:50 AM
Replies: 18
Views: 3,659
Posted By gerryndennis

G'day Tim, Every OS I've seen has the arrow...

G'day Tim,

Every OS I've seen has the arrow on the piston pointing to the exhaust port. Hopefully that's the way yours ended up?

Dave H
Forum: Glow Engines
06-30-2016, 01:15 AM
Replies: 14
Views: 1,624
Posted By gerryndennis

G'day Mr Cox, I had a play round with a...

G'day Mr Cox,

I had a play round with a couple of my non ringed engines today. I tried flipping them with the plug in and out, and the carb blocked and clear.

You are right the primary...
Forum: Glow Engines
06-28-2016, 09:08 PM
Replies: 14
Views: 1,624
Posted By gerryndennis

G'say Fiery and all, I've noticed this...

G'say Fiery and all,

I've noticed this effect as well, and also only on two strokes.

I assumed it was due to the ring being pinned so that the gap is on the transfer side (halfway between the...
Forum: Glow Engines
05-06-2016, 02:14 PM
Replies: 5
Views: 467
Posted By gerryndennis

G'day Twistr, google 'Saito flange puller',...

G'day Twistr,

google 'Saito flange puller', you'll get a few pages on how to do this.

Most people purchase a cheap battery terminal puller/gear puller/bearing puller of some description (some...
Forum: Aerodynamics
03-30-2016, 10:33 PM
Replies: 56
Views: 4,963
Posted By gerryndennis

It seems like CATA has long gone, and the correct...

It seems like CATA has long gone, and the correct answer has been given, but to reiterate.

If the tail volume (area X length) is increased then the neutral point moves aft. Therefore the balance...
Forum: Aerodynamics
03-30-2016, 10:24 PM
Replies: 56
Views: 4,963
Posted By gerryndennis

Nope

Nope
Forum: Aerodynamics
03-27-2016, 03:14 AM
Replies: 56
Views: 4,963
Posted By gerryndennis

Hi Rapptor, I just had had a look around...

Hi Rapptor,

I just had had a look around that Westwing reference of yours including most of the rest of the site.

You might want to look for some better reference material.

That is by far...
Forum: Glow Engines
03-06-2016, 11:49 PM
Replies: 20
Views: 3,303
Posted By gerryndennis

All joking aside for a minute. As Bax says, 'the...

All joking aside for a minute. As Bax says, 'the dot aligns with the pushrods'. The dot can be up, as shown in the photo, or down as long as it's on that red line and therefore 'aligned with the...
Forum: Glow Engines
03-03-2016, 05:29 PM
Replies: 20
Views: 3,303
Posted By gerryndennis

No problem Dave, I'm guessing all OS four...

No problem Dave,

I'm guessing all OS four strokes time the same, but my 26, 40, 48, and 70 definitely do.

Dave H
Forum: Glow Engines
03-03-2016, 04:10 PM
Replies: 20
Views: 3,303
Posted By gerryndennis

Yep, the 48 is timed the same as the 70 manual...

Yep, the 48 is timed the same as the 70 manual states. The dot on the camshaft us lined up with the pushrods at TDC.

The trick is that you have to start with the dot slightly displaced because the...
02-27-2016, 09:15 PM
Replies: 53
Views: 4,248
Posted By gerryndennis

G'day Elay, If they are for an SF engine I...

G'day Elay,

If they are for an SF engine I would be interested in buying them.

They might be for an AX or FX though, in which case they won't fit my engines.

I'm sure someone here would be...
02-27-2016, 09:53 AM
Replies: 53
Views: 4,248
Posted By gerryndennis

I agree, the K and B should make an excellent...

I agree, the K and B should make an excellent conversion.

I've used mostly lapped or ABX type engines as well, apart from my four strokes. I wouldn't say I'm a convert but my four strokes have...
02-27-2016, 03:16 AM
Replies: 53
Views: 4,248
Posted By gerryndennis

Finally got a chance to do some more running on...

Finally got a chance to do some more running on the 46 with Jef's Diesel head.

The engine I'm running came to me second hand on an Ultra Sport with a Macs pipe and a spare 10X6 APC prop. It looked...
02-04-2016, 11:23 PM
Replies: 21
Views: 2,922
Posted By gerryndennis

A dedicated Diesel will burn noticeably less fuel...

A dedicated Diesel will burn noticeably less fuel than a glow of the same horsepower.

Unfortunately our converted engines are optimised for glow use. The carb, transfer passages, and timing aren't...
02-04-2016, 12:48 PM
Replies: 21
Views: 2,922
Posted By gerryndennis

Hi yyk, I'm not familiar with that model,...

Hi yyk,

I'm not familiar with that model, but if the engine fits in it should be fine. The FP engines are not a heavy engine so balance shouldn't be too much of a problem. Diesels are quite frugal...
Forum: Kit Building
02-03-2016, 09:16 PM
Replies: 4
Views: 377
Posted By gerryndennis

G'day Scratchie, It's normal to have the...

G'day Scratchie,

It's normal to have the centre of the propeller or the spinner backplate on the centre line of the fuselage, so yes it looks like your engine would need to go to the left by a...
02-02-2016, 08:28 PM
Replies: 21
Views: 2,922
Posted By gerryndennis

Hi yyk, I've got the same head on a 40 FSR. ...

Hi yyk,

I've got the same head on a 40 FSR.

I agree it's an easy conversion, and runs really well.

The general consensus is that the FP engines make excellent Diesel conversions, so you'll...
Forum: Kit Building
01-21-2016, 11:54 AM
Replies: 112
Views: 7,961
Posted By gerryndennis

That's looking good Calvi. I'm going to do...

That's looking good Calvi.

I'm going to do the same as you and glue the firewall in after.

Dave H
Forum: Kit Building
01-20-2016, 01:48 AM
Replies: 112
Views: 7,961
Posted By gerryndennis

You'll be able to position the firewall slightly...

You'll be able to position the firewall slightly forward or aft to get the prop and wing slot lined up correctly if you need to as well.

Dave H
Forum: Kit Building
01-19-2016, 12:07 PM
Replies: 112
Views: 7,961
Posted By gerryndennis

I think you've got it. Epoxy a piece of ply...

I think you've got it.

Epoxy a piece of ply to the balsa side that sticks out past the ply doubler so that you have ply all the way to the back.

Then epoxy a ply tripler from the back to at...
Showing results 1 to 25 of 345
 


 
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