Saito FG-60R3
#176
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Location: Prescott Valley, AZ
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I've decided to pull the trigger and order an FG-60... I wonder what the longest runtime is that anyone has accumulated on this engine - has anyone managed to get 10 hours of successful running yet?
#178
Well look what happend to my engine on Friday. I had two good flights, and then started the engine for the 3rd flight and within 20 seconds of runng it suddenly started to make a knocking sound. I shut down immediately and noticed that number 2 cylinder had cracked at the base. As you know from my run in period earlier in this forum blog the engine whas VERY cearfully run-in and I have subsequently had about 25 flights with no issues. Hopfully it will just need a replacement cylider and piston ring.
It could possibly be a bolt tightness issue - did you ever check the cylinder bolts?
#180
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It was sitting there patiently so I had to start it up... couldn't run up the motor as the table wasn't strapped to anything and the propwash was blowing my hangar something fierce!!!
https://youtu.be/9JqDS1Nw9S8
https://youtu.be/9JqDS1Nw9S8
#183
It could have been a bolt issue, who knows, anyway I have ordered a new cylinder head and new piston ring. When I replace this I am going to thread lock all the cylider bolts and all the back plate bolts. I'm also just glad this failure happend on the ground rather than in flight as it could have been much worse. I have to wait 3 weeks for the new parts when they come I'll post some pics of the repair.
#184
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John,
hat should be a warranty repair item. Most likely a crack like the is a caused by a bad casting.
Doubtful anything you could do would cause that.
hydrolic lock can happen but only if one doesn't manually pull the prop through first clearing the cylinders before using an electric starter.
hat should be a warranty repair item. Most likely a crack like the is a caused by a bad casting.
Doubtful anything you could do would cause that.
hydrolic lock can happen but only if one doesn't manually pull the prop through first clearing the cylinders before using an electric starter.
#185
I took the engine apart today to see what the cause of the cracked cylinder was and I think it was a bolt tightening issue, two of the bolts on the cylider were undone by about one turn. After I removed the cylinder, the crank case was full if bits if aluminium shavings so I have had to strip the whole thing down and give it a good check over and clean. Lukly no more damage inside or to any of the other cylinders. Interestinly when removing the other two cyliders the bolts were tight but not realy tight if you know what I mean. When replacing all the bolts I am going to thead lock them all.
Also the main bearing has got a brass bush.
Also the main bearing has got a brass bush.
#186
The material of cylinder gasket and camgear cover gasket will deform under heat, that is why you should check every cylinder screws
and camgear cover screws during initial stage of break-in as stated in th manual.
and camgear cover screws during initial stage of break-in as stated in th manual.
#188
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Join Date: Apr 2003
Location: Richmond,
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hey guys,
re-read all these post again, I was on the backorder list for the new version of the motor, which I got back in Dec. was ready to send it out to Ray to break it in for me, but I lost my younger brother in Feb. so everything has been on hold. I bought a Extreme Flight 91" YAK to put this in once the motor was benched in, but I would like to see if anyone has this motor in a civilian style plane. would really like to put it in the Hangar 9 super cub. don't want a bi-plane yet, just a good easy flying single wing plane. anyone got the Super Cub that could help with cowl dem.
Tom
re-read all these post again, I was on the backorder list for the new version of the motor, which I got back in Dec. was ready to send it out to Ray to break it in for me, but I lost my younger brother in Feb. so everything has been on hold. I bought a Extreme Flight 91" YAK to put this in once the motor was benched in, but I would like to see if anyone has this motor in a civilian style plane. would really like to put it in the Hangar 9 super cub. don't want a bi-plane yet, just a good easy flying single wing plane. anyone got the Super Cub that could help with cowl dem.
Tom
#190
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thanks mark, someone posted the Hangar 9 Beaver @ 231mm which is a shade over 9" I think that would work. I need to pull the spec on that motor, seems the centerline was 220mm (8.66") and 207mm (8.14")was distance from rocker of one cyl. to rocker of another. sure would be nice to have it in that super cub. I'm sure the 1/3 World Models super cub would have no problem with it fitting within the cowl. just not sure I want a plane that big yet.
#191
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hey Mark,
im a little confused with your last post, you have a Staggerwing and super cub, but do you also have the FG-60R3 in each of those planes as well? cause if you do then you answered my ? about the cub, and I would love pic of as well.
T
im a little confused with your last post, you have a Staggerwing and super cub, but do you also have the FG-60R3 in each of those planes as well? cause if you do then you answered my ? about the cub, and I would love pic of as well.
T
#194
#195
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anyone have a better idea than the wire clips that hold the spark plug cap on? using the keleo exhaust ring on my FG-60,unless they are perfectly lined up they won't stay on.the engine is in a TF Corsair.the exhaust ring is small enough that the plug wires will rub on the ring.you turn them to clear and maybe one side of the clip does grab.still not good,its gonna vibrate off.maybe if the ring was bigger in Dia.,it might stay on.who ever came up with this idea would probably have a hard time building a ham sandwich.has to be a better way.a few pages back,someone was grinding some off the bottom of the cap and was wondering if that worked.any ideas?
#197
anyone have a better idea than the wire clips that hold the spark plug cap on? using the keleo exhaust ring on my FG-60,unless they are perfectly lined up they won't stay on.the engine is in a TF Corsair.the exhaust ring is small enough that the plug wires will rub on the ring.you turn them to clear and maybe one side of the clip does grab.still not good,its gonna vibrate off.maybe if the ring was bigger in Dia.,it might stay on.who ever came up with this idea would probably have a hard time building a ham sandwich.has to be a better way.a few pages back,someone was grinding some off the bottom of the cap and was wondering if that worked.any ideas?
Hi Mike,I noticed the same thing with mine I cut 1.5mm off the bottom of the HT lead cap, this makes it fit much better, works a treet.
#198
I tried my FG-60 for the first time this weekend.
The CG on the plane was a bit too far aft, therefore the steep takeoff.
That was the reason for not giving some elevator just before touchdown, too; I was nervous it could set the nose upwards too much again.
Also it is perhaps not adjusted quite correctly on top speed....but will leave it for now;
When cutting power after landing, I measured the temperature on all 3 cylinders, on the middle, up front. It was around 35 degrees Celsius on all 3. ( !! ).
Outside temperature was, oh, about 18 degrees Celcius.
https://www.youtube.com/watch?v=bVbix9bM27o
The CG on the plane was a bit too far aft, therefore the steep takeoff.
That was the reason for not giving some elevator just before touchdown, too; I was nervous it could set the nose upwards too much again.
Also it is perhaps not adjusted quite correctly on top speed....but will leave it for now;
When cutting power after landing, I measured the temperature on all 3 cylinders, on the middle, up front. It was around 35 degrees Celsius on all 3. ( !! ).
Outside temperature was, oh, about 18 degrees Celcius.
https://www.youtube.com/watch?v=bVbix9bM27o
#200
Yes. On a Fw 190 it is more a question on whether the wing holds. (Except if you have Robarts and was unlucky, and got the weak pin.)
Its Sierra.
It held this time too;
https://www.youtube.com/watch?v=Hjdl6rGjt0U
The wing held this time, too. Its because on the Sist Fw 190 all the innards of the wing in the gear area is carbon-fiber.
Its Sierra.
It held this time too;
https://www.youtube.com/watch?v=Hjdl6rGjt0U
The wing held this time, too. Its because on the Sist Fw 190 all the innards of the wing in the gear area is carbon-fiber.
Last edited by kwik; 08-18-2015 at 01:32 PM.