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Search: Posts Made By: cathurga
Showing results 1 to 25 of 497
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Forum: Gas Engines
01-28-2020, 08:25 PM
Replies: 123
Views: 32,970
Posted By cathurga

Man! This is so much information to digest, and...

Man! This is so much information to digest, and you guys have done an awesome job of setting up your testing info, and putting the results out.

I see above, a message from Adrien at CH, that the...
Forum: Gas Engines
01-28-2020, 08:05 PM
Replies: 30
Views: 877
Posted By cathurga

Quiet the hobby may well be, but this information...

Quiet the hobby may well be, but this information is waay to interesting and relevant to many of us, and I for one appreciate all the feedback, as well as all your efforts in figuring this out so...
Forum: Gas Engines
01-27-2020, 11:00 PM
Replies: 30
Views: 877
Posted By cathurga

Joystick, that is unbelieveable! Not doubting...

Joystick, that is unbelieveable! Not doubting your claims/research, but that is probably the most counter-intuitive thing I have ever seen regarding an ignition curve! Retarding the timing at start...
Forum: Gas Engines
01-27-2020, 02:01 AM
Replies: 30
Views: 877
Posted By cathurga

Apologies for not contributing to the original...

Apologies for not contributing to the original topic, but I have an interest in the ignition curves. Does anyone have anymore information on what the ACTUAL curves look like between the AO1 and AO2...
Forum: Gas Engines
01-21-2020, 10:56 PM
Replies: 375
Views: 62,039
Posted By cathurga

This is really good to know, I really wanted to...

This is really good to know, I really wanted to put the Saito in my FW190 and might consider it now. I think mine is still a bit heavier than yours but it’s got a lot of ballast in it with a GP88...
Forum: Gas Engines
01-15-2020, 05:15 AM
Replies: 2,584
Views: 289,135
Posted By cathurga

30:1 is fine, as the oily fuel mix will be going...

30:1 is fine, as the oily fuel mix will be going through the crankcase, unlike normally where oil needs to make it past the rings first. With the mod, you have the best of both worlds.
Run it on...
Forum: Gas Engines
01-13-2020, 09:37 PM
Replies: 375
Views: 62,039
Posted By cathurga

Didier, hi! I have the TopRC FW190, and the...

Didier, hi!
I have the TopRC FW190, and the FG90 will be marginal as far as performance is concerned. Mine wasn't built by me so is a little heavy for my liking, but even built as light as possible,...
Forum: Gas Engines
01-13-2020, 09:32 PM
Replies: 2,584
Views: 289,135
Posted By cathurga

Camdy, I assume your engine has not run yet? If...

Camdy, I assume your engine has not run yet? If so, I would make sure to get some lube into it before running it, I mean manually lube it. Since you are taking the back plate off to change to the...
Forum: Gas Engines
01-08-2020, 11:01 PM
Replies: 5
Views: 297
Posted By cathurga

I would add to that, but not as a 'must do', is...

I would add to that, but not as a 'must do', is the installation of Bowman/BjornBaal rings as well. The engine will bed in quicker, and run better over the ling term with a set of those. My personal...
Forum: Gas Engines
01-06-2020, 08:45 PM
Replies: 221
Views: 47,967
Posted By cathurga

Hey All, Again, its been a while since...

Hey All,

Again, its been a while since posting, but life ha got in the way of my hobby!

Fired the engine up again after looking into the valve timing, and resetting it as I thought it might be...
Forum: Gas Engines
12-08-2019, 10:08 PM
Replies: 221
Views: 47,967
Posted By cathurga

Does anyone know whether OS used Rcxel CDI tech...

Does anyone know whether OS used Rcxel CDI tech when building the Ignition module? I am trying to figure out whether the curve is different to othe modules. I saw a thread once (not here, by the...
Forum: Gas Engines
12-08-2019, 11:28 AM
Replies: 221
Views: 47,967
Posted By cathurga

Appreciate the offer, and may take you up on it....

Appreciate the offer, and may take you up on it. I was thinking of putting your elbow, and then a flex pipe. I think OS do a 15x1mm flex pipe. Your elbow is 16x1mm male, and 15x1mm female side right?
Forum: Gas Engines
12-08-2019, 12:14 AM
Replies: 221
Views: 47,967
Posted By cathurga

Well its been a while since posting here, and I...

Well its been a while since posting here, and I have eventually managed to get the engine mounted on a test stand......but its not all plain sailing...

AA5BY, firstly to respond to your comment...
Forum: Gas Engines
11-27-2019, 12:27 AM
Replies: 375
Views: 62,039
Posted By cathurga

As Jon says, its not a traditional choke that...

As Jon says, its not a traditional choke that causes a vacuum in the jets do draw fuel, it just pulls the jet open to allow fuel to draw. Follow the manual for best results, but I have also had the...
11-26-2019, 11:33 PM
Replies: 758
Views: 93,134
Posted By cathurga

Guys, I've read a lot about the rubbish...

Guys,

I've read a lot about the rubbish retracts that come with the plane, and in fact, I have Electron units fitted on the plane I bought. What I have found though, is that the Electron units, as...
Forum: Gas Engines
11-25-2019, 09:03 PM
Replies: 375
Views: 62,039
Posted By cathurga

The choke rod is very useful. It doesn’t close...

The choke rod is very useful. It doesn’t close the ‘butterfly’, it opens up the low speed/idle jet, allowing fuel into the venturi, while the throttle is in a closed position.
it’s not as effective...
Forum: Gas Engines
11-20-2019, 01:09 AM
Replies: 2,584
Views: 289,135
Posted By cathurga

Hey all, I managed to get some time to pull the...

Hey all, I managed to get some time to pull the engine off the plane, and do some inspection and teardown. Here are my observations, and I'm still in the dark as to what the ACTUAL cause of the...
Forum: Gas Engines
11-17-2019, 10:17 AM
Replies: 2,584
Views: 289,135
Posted By cathurga

Jon, its no biggie mate, as you can see further...

Jon, its no biggie mate, as you can see further back in the thread, the idea was that this engine was expendable to some degree, and I always knew it was a candidate for a failure. Actually,...
Forum: Gas Engines
11-17-2019, 07:04 AM
Replies: 2,584
Views: 289,135
Posted By cathurga

JieM, no, it was the old cylinder that broke, the...

JieM, no, it was the old cylinder that broke, the new cylinder is still holding fast.

Hpergm, the prop was a varioprop 4-blader with around 18" diameter and 11" pitch. Static rpm was around 5400...
Forum: Gas Engines
11-16-2019, 09:37 PM
Replies: 2,584
Views: 289,135
Posted By cathurga

Well gentlemen, my boredom with this engine over...

Well gentlemen, my boredom with this engine over recent times, came to a sharp end this weekend. No.2 let go on flight no 5 of the weekend. Its a very sobering experience given that just a few...
Forum: Gas Engines
11-15-2019, 09:39 AM
Replies: 2,584
Views: 289,135
Posted By cathurga

https://www.youtube.com/watch?v=g2eeVbxMCZc ...

https://www.youtube.com/watch?v=g2eeVbxMCZc

This might also work in your corsair?
Forum: Gas Engines
11-15-2019, 09:30 AM
Replies: 2,584
Views: 289,135
Posted By cathurga

I have info from a very good source, that the NEW...

I have info from a very good source, that the NEW 5-cyl config UMS engines are designed from the ground up, as gas engines, I dont think the 7-cyls are, I think they are also converted glows....
Forum: Gas Engines
11-13-2019, 09:27 AM
Replies: 2,584
Views: 289,135
Posted By cathurga

Yep, you need 10 posts to put up pics. The...

Yep, you need 10 posts to put up pics.

The timing mod is not a heat issue, it’s an ignition mod that could save your engine. If you’re in the US, and if it’s any easier, contact Adrien at...
Forum: Gas Engines
11-12-2019, 09:01 PM
Replies: 2,584
Views: 289,135
Posted By cathurga

BTW, what retracts are you going to use for your...

BTW, what retracts are you going to use for your bird? I know that retracts for Corsairs, P40's etc are pretty rare to find. Most people go with Robarts, Sierra or Century Jet. I have heard good/bad...
Forum: Gas Engines
11-12-2019, 08:14 PM
Replies: 2,584
Views: 289,135
Posted By cathurga

Welcome to the forum, hope you enjoyed the...

Welcome to the forum, hope you enjoyed the 'banter' :-)

I would agree with Jon, the 60 would fly it OK, and as people have had similar experiences with the P-47 and other planes if the size. If...
Showing results 1 to 25 of 497
 


 
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