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Search: Posts Made By: Cat 1
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Yesterday, 07:23 PM
Replies: 1,255
Views: 27,940
Posted By Cat 1

I have some labeled "water pump". The same...

I have some labeled "water pump". The same construction but the ports are restricted. - haven't checked the internals. Would probably make a good "fuel transfer pump" for scale glow models with...
Yesterday, 01:29 PM
Replies: 1,255
Views: 27,940
Posted By Cat 1

WE are a pretty adaptable organism.. From +60 to...

WE are a pretty adaptable organism.. From +60 to -100 and we find a way to survive environments that try their best to eliminate us. WE even find time to take small assemblies of engineered metal...
12-06-2022, 08:31 PM
Replies: 1,255
Views: 27,940
Posted By Cat 1

John.. The cat needs one of these - Keeps my...

John.. The cat needs one of these - Keeps my puppy watered and happy


https://cimg4.ibsrv.net/gimg/www.rcuniverse.com-vbulletin/640x480/img_0699_452b044c82501ae27b567b0bebe06521d04ced01.jpg
...
12-06-2022, 04:22 PM
Replies: 1,255
Views: 27,940
Posted By Cat 1

Dave and all, Sorry for the slow replies -...

Dave and all,

Sorry for the slow replies - We are fighting cold here - real cold!!!! -30C today all day and approaching -50C tonite with wind chills - What a start to winter - El Nina is going to...
12-05-2022, 10:10 AM
Replies: 1,255
Views: 27,940
Posted By Cat 1

Dave - I think regular inputs would work well...

Dave - I think regular inputs would work well enough and do away with the S-bus programming and setup - I did have a "Primer" setup with a single input as you can use the "not running" trigger (in...
12-05-2022, 05:33 AM
Replies: 1,255
Views: 27,940
Posted By Cat 1

Sorry I missed you query Dave.. The graupners...

Sorry I missed you query Dave.. The graupners can output s.bus (and many other protocols) but I'm not sure if the port (one of the channel pin sets) can be used concurrently with the other channel...
11-30-2022, 05:56 PM
Replies: 1,255
Views: 27,940
Posted By Cat 1

Yes John... the leakage is more apparent around...

Yes John... the leakage is more apparent around the port clearance.. Im assuming its also harder to get a long lasting gas tight fit around a large cast in part than it would be to do the same with a...
11-29-2022, 05:57 PM
Replies: 1,255
Views: 27,940
Posted By Cat 1

Brilliant idea Bert ... I think I have all the...

Brilliant idea Bert ... I think I have all the materials needed. Will document when do it. As John said I don't think its enough to really effect how the engine runs and I'm sure the seat will not...
11-29-2022, 06:05 AM
Replies: 1,255
Views: 27,940
Posted By Cat 1

Valve seat is ok and valve seals well - Made a...

Valve seat is ok and valve seals well - Made a delrin plug and held it in with a 3mm cap screw though the guide. filled the head and small pressure on the port and bubbles showed it definitely...
11-28-2022, 06:51 PM
Replies: 1,255
Views: 27,940
Posted By Cat 1

I'm stuck up at one of our northern bases this...

I'm stuck up at one of our northern bases this week doing management coverage so no shop time this week.. but I want to share a couple of weekend items.

Because I plan to utilize the e-pump now on...
11-27-2022, 06:50 AM
Replies: 1,255
Views: 27,940
Posted By Cat 1

On your picture Dave - Looks like you got the...

On your picture Dave - Looks like you got the right style - There are tons of versions and it seems like many different manufactures too.

I am aware if the step restriction but for the...
11-24-2022, 07:43 PM
Replies: 1,255
Views: 27,940
Posted By Cat 1

We must make a Pact that when our system starts...

We must make a Pact that when our system starts to look like this, we will just stop this and FLY MORE!!!!!! :)
11-24-2022, 07:39 PM
Replies: 1,255
Views: 27,940
Posted By Cat 1

Package showed up today from overseas and had...

Package showed up today from overseas and had some air movers in it.. Have an assortment to play with of a few differ styles - One is even marked "water pump"...

Attaching a little video to show...
11-24-2022, 05:32 AM
Replies: 1,255
Views: 27,940
Posted By Cat 1

I can do that Dave.. The last time I flew the ST...

I can do that Dave.. The last time I flew the ST .45 setup it was in the mid 20's Celsius. Without playing I will pull it out on a cold day and give it a try..

I do think we will be limited by...
11-23-2022, 07:40 PM
Replies: 1,255
Views: 27,940
Posted By Cat 1

Now what we need is some air time to prove this...

Now what we need is some air time to prove this system out, and unfortunately Old Man winter has found us here - I do try and get out and fly (on ski's) a bit during the winter but its not conducive...
11-22-2022, 07:26 PM
Replies: 1,255
Views: 27,940
Posted By Cat 1

Took one apart - Curiosity killed the cat!!! the...

Took one apart - Curiosity killed the cat!!! the thing is actually a twin with two cylinders and two sets of valving - the top is a trick with porting as the middle port is the outlet and the side...
11-21-2022, 08:09 PM
Replies: 1,255
Views: 27,940
Posted By Cat 1

I suspect the pump check is a membrane type...

I suspect the pump check is a membrane type silicone valve also - I will pull one apart to have a better look but I have attached a drawing and specs - They are a positive displacement pump with two...
11-21-2022, 03:16 PM
Replies: 1,255
Views: 27,940
Posted By Cat 1

John, I'm sure the membrane is silicone type...

John,

I'm sure the membrane is silicone type material so wouldn't stand up well to fuel (other than glow) The fuel vapour is not an issue as the outlet check works very well and vapour can't be...
11-20-2022, 08:38 PM
Replies: 1,255
Views: 27,940
Posted By Cat 1

On my Boxer I will be running this pump with the...

On my Boxer I will be running this pump with the solenoid - The reason for chasing this pump solution was to eliminate the need to "restrict" the short 4 stroke exhaust to get a decent muffler...
11-20-2022, 07:52 PM
Replies: 1,255
Views: 27,940
Posted By Cat 1

Just read through my last post and didn't like...

Just read through my last post and didn't like how it seemed to imply that this is a full on replacement for the solenoid - I don't think it is... I think it will work well on some less critical...
11-20-2022, 07:30 PM
Replies: 1,255
Views: 27,940
Posted By Cat 1

The pump is actually a quick responding setup...

The pump is actually a quick responding setup Dave - Not as precise as the solenoid but very capable of keeping mixture in check - Im thinking the feedback from the rpm is helping in this regard but...
11-20-2022, 04:54 PM
Replies: 1,255
Views: 27,940
Posted By Cat 1

Dave, I have done both now - Used it for muffler...

Dave, I have done both now - Used it for muffler pressure only and then added the curve function for the ability to do the curve like the solenoid. Both work but the solenoid is a finer control in...
11-16-2022, 06:48 PM
Replies: 1,255
Views: 27,940
Posted By Cat 1

That'll work!! Could build it as an add on to...

That'll work!! Could build it as an add on to the stand be used when needed..
11-16-2022, 06:16 PM
Replies: 1,255
Views: 27,940
Posted By Cat 1

The pump has a silicone seal/diagram - Would not...

The pump has a silicone seal/diagram - Would not like gasoline - But as Bert pointed out I think it would deliver too much.



Thanks about right.. Remember the faster they go there clearance...
11-14-2022, 11:02 AM
Replies: 1,255
Views: 27,940
Posted By Cat 1

Thats a good idea Bert.. I will incorporate that...

Thats a good idea Bert.. I will incorporate that when I get a chance. I find myself looking for cues from the linkage if I can but some times its hard to tell looking back trying to decipher and...
Showing results 1 to 25 of 194
 


 
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