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Search: Posts Made By: SrTelemaster150
Showing results 1 to 25 of 81
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Forum: Gas Engines
09-20-2016, 07:52 AM
Replies: 1,678
Views: 463,117
Posted By SrTelemaster150

Looks like severely excessive valve lash to me....

Looks like severely excessive valve lash to me. Possibly caused bu a stuck valve or broken valve spring.
Forum: Gas Engines
08-05-2016, 02:29 PM
Replies: 1,678
Views: 463,117
Posted By SrTelemaster150

Most 4-strokes do just fine with 28* of advance....

Most 4-strokes do just fine with 28* of advance. For some reason, this engine wants 45* which is an outrageous amount of timing advance. Usually about 36* is all that a water cooled 4-stroke will...
Forum: Gas Engines
08-02-2016, 03:23 PM
Replies: 1,678
Views: 463,117
Posted By SrTelemaster150

C&H Ignitions makes a module for this engine with...

C&H Ignitions makes a module for this engine with 45* of retard built in. You can then set full advance @ 45* BTDC and have 0* for easier starts & better idle characteristics..
Forum: Gas Engines
01-06-2016, 05:08 PM
Replies: 1,678
Views: 463,117
Posted By SrTelemaster150

You can make any mount "soft" by substituting...

You can make any mount "soft" by substituting "well nuts" for "T" nuts in the firewall. I use a nylock nut on the back to lock it in at whatever resilience wanted.
...
Forum: Gas Engines
12-24-2015, 08:28 AM
Replies: 1,678
Views: 463,117
Posted By SrTelemaster150

It doesn't matter so much with "gas" engines...

It doesn't matter so much with "gas" engines since the carburetors have diaphragm pumps & regulators.
Forum: Gas Engines
12-16-2015, 06:10 PM
Replies: 1,678
Views: 463,117
Posted By SrTelemaster150

As far as I know, it already is. Try the low...

As far as I know, it already is.

Try the low tech approach & use a telephone to contact Adrian at C&H Ignitions. If you leave a message he will return your call PRONTO.
Forum: Gas Engines
12-16-2015, 09:25 AM
Replies: 1,678
Views: 463,117
Posted By SrTelemaster150

7900 RPM W/an 18x8 is solidly in the Saito FA-180...

7900 RPM W/an 18x8 is solidly in the Saito FA-180 glow engine power range & better than the FG-30
Forum: Gas Engines
12-16-2015, 09:23 AM
Replies: 1,678
Views: 463,117
Posted By SrTelemaster150

By employing the C&H Ignitions module with 40...

By employing the C&H Ignitions module with 40 degrees advance (40 degrees retard at starting/idle RPM) yo can have the best of both worlds. Maximum performance as well as easier starts & general user...
Forum: Gas Engines
11-19-2015, 02:10 PM
Replies: 1,678
Views: 463,117
Posted By SrTelemaster150

You are only making a very slight increase in HP...

You are only making a very slight increase in HP but the 18x10 @ 6200 only makes 11# of thrust while your 18x6 @ 7400 makes nearly 16#!
Forum: Gas Engines
11-19-2015, 08:51 AM
Replies: 1,678
Views: 463,117
Posted By SrTelemaster150

Generally speaking thrust will not increase with...

Generally speaking thrust will not increase with more pitch at a given RPM at a given diameter propeller. Since RPM drops with more pitch, more pitch will achieve less thrust when the propeller...
Forum: Gas Engines
11-19-2015, 07:48 AM
Replies: 1,678
Views: 463,117
Posted By SrTelemaster150

Even at 6200 you aren't even making 1 3/4 HP! Way...

Even at 6200 you aren't even making 1 3/4 HP! Way too much prop!.
Forum: Gas Engines
11-16-2015, 05:45 AM
Replies: 1,678
Views: 463,117
Posted By SrTelemaster150

Changing the radius on the tappet or going to a...

Changing the radius on the tappet or going to a roller lifter will change the duration specifications of the cam.
Forum: Gas Engines
11-12-2015, 01:31 PM
Replies: 1,678
Views: 463,117
Posted By SrTelemaster150

Toss in a day with high barometric pressure & you...

Toss in a day with high barometric pressure & you have nature's supercharger. Low altitude means denser air. High barometric pressure also means denser air, but more importantly, it pushes more air...
Forum: Gas Engines
11-12-2015, 10:11 AM
Replies: 1,678
Views: 463,117
Posted By SrTelemaster150

"Density altitude" can vary at any "geographic"...

"Density altitude" can vary at any "geographic" altitude. It take geographic altitude (in feet above/below sea level) ambient temperature, barometric pressure as well as relative humidity into...
Forum: Gas Engines
11-12-2015, 02:25 AM
Replies: 1,678
Views: 463,117
Posted By SrTelemaster150

I think the term you are looking for is Density...

I think the term you are looking for is Density Altitude.
Forum: Gas Engines
11-11-2015, 05:01 PM
Replies: 1,678
Views: 463,117
Posted By SrTelemaster150

The weight of the prop has nothing to do with...

The weight of the prop has nothing to do with maximum RPM. A heavier prop will spool up & down slower & allow a lower idle speed, but it will not affect maximum RPM.

Environmental conditions can...
Forum: Gas Engines
10-02-2015, 04:36 AM
Replies: 1,678
Views: 463,117
Posted By SrTelemaster150

The thread adapter looks a lot better than the...

The thread adapter looks a lot better than the cast muffler W/the slotted flange.

I doubt that the caste flange would last very long before it broke.

The adapter opens up a whole slew of...
Forum: Gas Engines
09-27-2015, 02:43 PM
Replies: 1,678
Views: 463,117
Posted By SrTelemaster150

I can get over 10 minutes run time from an FA-180...

I can get over 10 minutes run time from an FA-180 running glow fuel W/CDI. Your gas engine should run at least 40% longer.
Forum: Gas Engines
09-14-2015, 04:00 AM
Replies: 1,678
Views: 463,117
Posted By SrTelemaster150

Some idle trim will do the same thing.

Some idle trim will do the same thing.
Forum: Gas Engines
06-24-2015, 05:11 PM
Replies: 1,678
Views: 463,117
Posted By SrTelemaster150

40 degrees BTDC is way beyond optimum for an air...

40 degrees BTDC is way beyond optimum for an air cooled engine running on gasoline.

Even with water cooled engines running high octane gasoline, 36 degrees BTDC is max.
Forum: Gas Engines
06-24-2015, 02:39 AM
Replies: 1,678
Views: 463,117
Posted By SrTelemaster150

What about making the magnet ring so that the...

What about making the magnet ring so that the magnet faces the rear like to original C&H Electronics Saito set-up? That would eliminate the possibility of the original magnet triggering the sensor.
...
Forum: Gas Engines
05-01-2015, 01:03 PM
Replies: 1,678
Views: 463,117
Posted By SrTelemaster150

I use a fixed pointer. With that method I do not...

I use a fixed pointer. With that method I do not use a "target" reading, but the 1/2 way value is still employed.

http://www.rcgroups.com/forums/showthread.php?t=1774802

I do not employ a...
Forum: Gas Engines
05-01-2015, 04:48 AM
Replies: 1,678
Views: 463,117
Posted By SrTelemaster150

Some of the timing specs I see for this engine...

Some of the timing specs I see for this engine with the OEM ignition seem a bit bizarre. Is this a Hall effect triggered CDI?

The relevance is that this being a larger displacement engine than the...
Forum: Gas Engines
04-26-2015, 08:40 AM
Replies: 1,678
Views: 463,117
Posted By SrTelemaster150

http://youtu.be/5xaiAR8Yelc Prop in the...

http://youtu.be/5xaiAR8Yelc

Prop in the video was an 18x8 MAS "K". It turned a 20x8 MAS Classic @ 6500 RPM.
Forum: Gas Engines
03-26-2015, 01:04 PM
Replies: 1,678
Views: 463,117
Posted By SrTelemaster150

I used a Hobbico 90 size starter to start my...

I used a Hobbico 90 size starter to start my FA-180s for years. It would melt the brush mount if I cranked too long though. I just upgraded to the Hobbico 180 starter so I'll see how that goes.
Showing results 1 to 25 of 81
 
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