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Old 12-21-2020, 05:41 PM
  #49251  
Hobbsy
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Either way, you'll have an engine with some serious compression.
Old 12-21-2020, 06:58 PM
  #49252  
the Wasp
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errrrrr, I had made a deal yesterday with a guy on RCG to buy my Heli parts. told me my price was good cause there was so many parts. today he brakes the deal. says he has got another deal going and if it doesn't go through he will buy my parts. the thing is he agreed to the deal.

to add. you know I had another guy over there that was PMing me a lot about the same parts, maybe 25 PMs. this guy kept asking the same thing 2 and 3 times. then again he asked me what the price was 3 times. the price is on the Add. . then asked me again if I had this or that even thO the parts he asked me was in the list of parts in the add. I come to believe he was just playing games.

I had this other guy some 4 moths ago that got made at me about these parts. he accused me of raising the price. I told him the price was $240 shipped, he could not understand the price of shipping was included in the $240 price. I had to tell him twice that I will pay the shipping out of that price of $240. and if the shipping was less than $40 I would return the difference. I never heard from him again... my god there is enough new parts to build a brand new Heli. AND enough used parts to build another Heli. and still have $100 in parts left over

I have to wonder if this is just a trick to pull out of the deal.

Jim
Old 12-21-2020, 07:02 PM
  #49253  
the Wasp
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Originally Posted by FlyerInOKC
I had one parcel sent USPS that sat at a mail distribution center for two weeks. The package was small less than a pound in weight and yet it didn't move.

Mike, how is your son ?????

Jim
Old 12-21-2020, 08:22 PM
  #49254  
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Originally Posted by the Wasp
Mike, how is your son ?????

Jim
He finished his quarantine, got a negative test and went back to work. He was doing fine when out of the blue while at work he started having shortness of breath and ended up in the ER. They ran tests gave him some treatments and he returned to normal. The doctor said it was a side affect of COVID and it could occur again but there was no way of knowing if it would, or when, or how often. There is still a lot they don't know except it affects different people in different ways and at different intensities.. He hasn't had a second occurrence so far and we are hoping it stays that way.
Now we are worried about our niece she is in the UK near Manchester were her fiance. They were planning to return to the states, Nashville, TN to be exact, for a small civil ceremony and then she was going to stay long enough to update her driver's license, passport, SS card, etc before returning to the UK. They plan on big wedding over there around September. With this new strain of COVID shutting down travel between the UK and the rest of the world we don't know what is going to happen.
Old 12-21-2020, 10:58 PM
  #49255  
Monty Python
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Originally Posted by Hobbsy
Yes sir the early was 11.24 to 1, the rest are 9.9 to 1, still plenty high. All are hump free. I have a new cylinder on mine, it did not lower the compression. I ham fisted the threaded intake boss. An expensive lesson.

The 180 has 9.56 to 1 compression as per Clarence Lee. Chris Chianelli doesn't bother with CRs, he mostly crows about OS-f plugs.
Dave just to be clear then, the only difference between early high compression fa150's and later versions is piston deck height or conrod length ?

Mike, over here according to where the latest covid outbreak is different states are closing borders.

ps jim, i know it leaves a bad taste in the mouth to be repeatedly mucked around on a deal so try to look on the bright side and understand that most heli pilots and drone operators make forrest gump look like an astrophysicist

Old 12-22-2020, 03:39 AM
  #49256  
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I may pull the 150 cylinder and measure the wrist pin to piston top distance and the rod length. But, I only have the one 150, so maybe some other brave soul could measure their normal compression 150 engine. If memory serves, I freshened up a 150 for Mike in Iowa. That's an iffy if. The one below me thinks.



Last edited by Hobbsy; 12-22-2020 at 03:43 AM.
Old 12-22-2020, 04:49 AM
  #49257  
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Dave, if you want go to all the trouble to disassemble and measure your high compression 150, I'll match your agony and measure my standard 150. It's just sitting on the bench anyway.
Old 12-22-2020, 05:25 AM
  #49258  
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Originally Posted by FlyerInOKC
He finished his quarantine, got a negative test and went back to work. He was doing fine when out of the blue while at work he started having shortness of breath and ended up in the ER. They ran tests gave him some treatments and he returned to normal. The doctor said it was a side affect of COVID and it could occur again but there was no way of knowing if it would, or when, or how often. There is still a lot they don't know except it affects different people in different ways and at different intensities.. He hasn't had a second occurrence so far and we are hoping it stays that way.
Now we are worried about our niece she is in the UK near Manchester were her fiance. They were planning to return to the states, Nashville, TN to be exact, for a small civil ceremony and then she was going to stay long enough to update her driver's license, passport, SS card, etc before returning to the UK. They plan on big wedding over there around September. With this new strain of COVID shutting down travel between the UK and the rest of the world we don't know what is going to happen.

Makes a person wonder why anyone would actually wish the disease on somebody else, let alone their family.....?

Sorry to see anybody going thru Chinese Corona nightmare.

Last edited by Jesse Open; 12-22-2020 at 05:29 AM.
Old 12-22-2020, 05:32 AM
  #49259  
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Scott had a mild case of the COVID so this sudden return of symptoms took us all by surprise. Its not something I would wish on anyone.
Old 12-22-2020, 05:37 AM
  #49260  
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Dave,

I would be glad to help but the only 150 I have left is also an HC version. I worked part time at the LHS . When I heard the 150 eas coming out I placed a standing order for one. This was the one they sent. Never had a lick of trouble.
Old 12-22-2020, 06:15 AM
  #49261  
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OK, I did a comparison between the HC 150-s and a standard compression 120-s, the rods are identical at 42 mm center to center. The pistons have the same wrist pin bore to piston top at 6.5 mm. The 120-s piston top has a machined relief, the 150 piston is perfectly flat on top. The 120 piston top is thicker but the wrist pin is closer to the top making the distance the same. The 120 piston has bushings in the pin bore, they are not bronze.



Old 12-22-2020, 06:38 AM
  #49262  
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Speaking of the US Postponement Service, I have a package coming from Ohio that was scheduled to be delivered yesterday that didn't show up. Tracking indicates its late, big DUH, it appears to be waiting at the OKC Distribution center to be sent to the post office which delivers my mail. It gets better the distribution center is within 1 1/4 miles of my house, a textbook case of irony if I ever saw one.
International is worse, I had three gag Christmas ornaments I ordered thru Amazon on 10/24 1 from Vietnam and two from China. All three disappeared from the face of the earth after reaching the USA into the clutches of the United States Postponement Service! They were suppose to be refunded on 12/15 I'm still waiting for credits to post it totals about $6.50.

Last edited by FlyerInOKC; 12-22-2020 at 06:50 AM.
Old 12-22-2020, 06:55 AM
  #49263  
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Held hostage, easier to burn time letting it sit than sending it on a trip around the country. Postal workers having a temper tantrum.

Old 12-22-2020, 08:13 AM
  #49264  
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This is a shot of the current 150-s piston, it appears to have most of the piston top lowered.


Old 12-22-2020, 08:14 AM
  #49265  
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Day 14, package is still somewhere between St louis and here. Think they attached it to the back of a Raccoon.
Old 12-22-2020, 09:07 AM
  #49266  
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Originally Posted by acdii
Day 14, package is still somewhere between St louis and here. Think they attached it to the back of a Raccoon.
I think you are being overly optimistic, its more like and old tortoise with an arthritic hip!
Old 12-22-2020, 05:43 PM
  #49267  
the Wasp
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Mike, it's goo to hear your son is better, he's a good guy, I like all the EMT guys & gals.

Jim
Old 12-22-2020, 08:34 PM
  #49268  
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Its not an easy job and the pay isn't the greatest but he gets a lot of satisfaction from it. His wife is a RN at a local hospital.
Old 12-22-2020, 10:39 PM
  #49269  
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thanks
Old 12-23-2020, 12:20 AM
  #49270  
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Originally Posted by Hobbsy
OK, I did a comparison between the HC 150-s and a standard compression 120-s, the rods are identical at 42 mm center to center. The pistons have the same wrist pin bore to piston top at 6.5 mm. The 120-s piston top has a machined relief, the 150 piston is perfectly flat on top. The 120 piston top is thicker but the wrist pin is closer to the top making the distance the same. The 120 piston has bushings in the pin bore, they are not bronze.


Hi Hobbsy,

Thank you so much! So it seems the difference between high compression and low(er) compression 150s is just the machined relief of the piston top.

btw. I wasn't expecting anyone to dismantle an engine to find out this.. if you ever come to Southern Finland I owe you a dinner

Artto
Old 12-23-2020, 03:19 AM
  #49271  
Hobbsy
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Thanks for kind offer. Yes, I think that is the difference. Several of the later Saitos are different in that way from their early versions.
I like to say, that's why they have bolts. They're all back together now. I enjoyed that more than wrapping Christmas presents.
Old 12-23-2020, 03:45 AM
  #49272  
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Originally Posted by Hobbsy
OK, I did a comparison between the HC 150-s and a standard compression 120-s, the rods are identical at 42 mm center to center. The pistons have the same wrist pin bore to piston top at 6.5 mm. The 120-s piston top has a machined relief, the 150 piston is perfectly flat on top. The 120 piston top is thicker but the wrist pin is closer to the top making the distance the same. The 120 piston has bushings in the pin bore, they are not bronze.


Thanks for the investigation and measurements Dave. I'll tear down my later model 150 here in a couple of days and report my findings.
Old 12-23-2020, 03:54 AM
  #49273  
Hobbsy
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You're welcome, one thing I neglected to mention, even with those bushings in the 120 piston, the wrist pins are identical. The 120 wrist pin was castored in place in those bushings, I pushed the wrist pin through then finger spun it coated with Corrosion X and it took the castor right out, it now slides through as if made of silk.
Old 12-23-2020, 06:32 AM
  #49274  
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After reading the above posts I am becoming more convinced this thread is mislabeled it should be called "Saito University"!
Old 12-23-2020, 10:21 AM
  #49275  
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The early FA-120 had an odd, dished piston as noted in several reviews at that time.
No reason for a bushed gudgeon pin to require a different size.

I just inherited 16 Enya and OS four strokes from the estate of a club member. He passed away about 11 years ago. They had been run soley on synthetic oiled Cool Power. A couple may be repairable but most likely I will be breaking them down for parts.

From another source, I do have a few very nice 2 strokes to unload as well. Webra, HB, HP Gold Cups, Super Tigre etc. Many new but all in great shape.
One super sweet OS .61 front intake, rear exhaust ABC should make a vintage pattern guy a nice toy.


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