Notices
Glow Engines Discuss RC glow engines

Welcome to Club SAITO !

Old 04-01-2019, 01:37 AM
  #39776  
Rudolph Hart
 
Rudolph Hart's Avatar
 
Join Date: Apr 2008
Location: Perth, AUSTRALIA
Posts: 4,383
Likes: 0
Received 2 Likes on 2 Posts
Default



Since jim keeps posting two strokes you're on the pillion seat for life.

Originally Posted by Jesse Open
Yep, that is the same type sheet wax we use. We do metal stampings. Been at it for over 50 years.
We buy our sheet wax at a large foundry supply house. Foundries use patterns. When I entered the trade, the patterns were usually wood, often woods like mahogany , cherry etc. Now we use synthetic resins and urethane foams for that purpose. In the old days mostly hand mill work, now CNC. That is the trade.

The cast epoxy is but one material. We have acrylics, urethane, silicones etc on hand as well.
Rapid prototype parts from a variety of materials.

Same uses that we employ, same company. Likely the same product
I can see a pattern developing between you and sr tele...keep it up and in the next life you will be riding this and that's all buddy

ps capt there is a will robison sticky attached to this thread,well worth reading and the guy built brilliant bikes to boot cheers

pps dave still to cold for the fa50?
Old 04-01-2019, 01:47 AM
  #39777  
Jesse Open
 
Jesse Open's Avatar
 
Join Date: Mar 2018
Location: 30 Miles North of Canada Border
Posts: 3,667
Received 89 Likes on 81 Posts
Default

Naw, he rides Harleys and drives Moopars. Not a chance


Could do a combustion chamber cast and measure volume by measuuring fluid displacement.

Old 04-01-2019, 03:12 AM
  #39778  
SrTelemaster150
Senior Member
 
SrTelemaster150's Avatar
 
Join Date: Feb 2012
Location: Brasher Falls, NY
Posts: 3,904
Likes: 0
Received 2 Likes on 2 Posts
Default

Originally Posted by Jesse Open
Naw, he rides Harleys and drives Moopars. Not a chance

Except now I ride a Specialized Crosstrail Sport





and drive a Toyota Highlander.


Last edited by SrTelemaster150; 04-01-2019 at 05:20 AM.
Old 04-01-2019, 03:56 AM
  #39779  
Jesse Open
 
Jesse Open's Avatar
 
Join Date: Mar 2018
Location: 30 Miles North of Canada Border
Posts: 3,667
Received 89 Likes on 81 Posts
Default

Nice!
Old 04-01-2019, 07:25 AM
  #39780  
Glowgeek
 
Join Date: Feb 2016
Posts: 3,495
Received 61 Likes on 61 Posts
Default

Back when I raced mountain bikes semipro they had good brakes but not great. No disc setups back then and shocks were in their infancy. Nice Yota!
Old 04-01-2019, 08:18 AM
  #39781  
SrTelemaster150
Senior Member
 
SrTelemaster150's Avatar
 
Join Date: Feb 2012
Location: Brasher Falls, NY
Posts: 3,904
Likes: 0
Received 2 Likes on 2 Posts
Default

Originally Posted by Glowgeek
Back when I raced mountain bikes semipro they had good brakes but not great. No disc setups back then and shocks were in their infancy. Nice Yota!
This is my full suspension mountain bike.


I took the picture while hunting Black Bear in the Adirondacks. It has the suspension modified upgrading to a Rockshox Recon fork with Pop-Lock handlebar lockout control and a Fox RP-123 shock for the 4-link rear suspension.

The rest of the bike had pretty sound design components even if a bit heavy. It now has over 4K miles in it.

That's my full European power spec 8X57IS rifle leaning against the bike. 2700 fps with a 200 gr .323 Speer Hotrcor bullet. Hits like the hammer of Thor.

As for the Highlander? Very comfortable and reliable but the brakes are woefully under built. After driving a 2006 Dodge Charger Daytona and a 2006 VW Jetta, the pedal effort required to stop the 4600# sled seemed a bit excessive.

At 42K miles the front pads went to metal. We usually got 60K or more before the pads even get near that on any of the cars that we had driven previously. We are going to upgrade to the 4Runner next time and keep a closer eye on the front brake pads.The 4Runner is more along the lines of what we need anyway. They come standard with a hitch receiver and a roof rack. To get a roof rack on the Highlander you have to spend $10K more in options that we don't need or want.
Old 04-01-2019, 10:03 AM
  #39782  
Quikturn
My Feedback: (12)
 
Quikturn's Avatar
 
Join Date: Jan 2008
Location: West Des Moines, IA
Posts: 932
Received 6 Likes on 6 Posts
Default



I have a bias towards Specialized bikes. The first nice bike I purchased and still own is a 1984 Specialized Sequoia. Itís so old that it was made in Japan. Itís all original except for the seat, brake levers and of course tires. Last year I purchased a specialized Roubaix Comp. I wasnít planning on spending so much on a bicycle but it was marked down considerably and happened to be my size. It is remarkable how far the technology has come along over the years.
Old 04-01-2019, 11:57 AM
  #39783  
the Wasp
My Feedback: (1)
 
Join Date: Sep 2003
Location: VT
Posts: 5,342
Likes: 0
Received 40 Likes on 38 Posts
Default

Originally Posted by SrTelemaster150
This is my full suspension mountain bike.
[img]https://i.imgur.com/ADF2PQR.jpg?

I took the picture while hunting Black Bear in the Adirondacks. It has the suspension modified upgrading to a Rockshox Recon fork with Pop-Lock handlebar lockout control and a Fox RP-123 shock for the 4-link rear suspension.

The rest of the bike had pretty sound design components even if a bit heavy. It now has over 4K miles in it.

That's my full European power spec 8X57IS rifle leaning against the bike. 2700 fps with a 200 gr .323 Speer Hotrcor bullet. Hits like the hammer of Thor.

As for the Highlander? Very comfortable and reliable but the brakes are woefully under built. After driving a 2006 Dodge Charger Daytona and a 2006 VW Jetta, the pedal effort required to stop the 4600# sled seemed a bit excessive.

At 42K miles the front pads went to metal. We usually got 60K or more before the pads even get near that on any of the cars that we had driven previously. We are going to upgrade to the 4Runner next time and keep a closer eye on the front brake pads.The 4Runner is more along the lines of what we need anyway. They come standard with a hitch receiver and a roof rack. To get a roof rack on the Highlander you have to spend $10K more in options that we don't need or want.
nice bike, but for trail riding I would think you would want to change your seat for something like the one in Pete's photo

Jim
Saito Engines, they take more strokes
Old 04-01-2019, 12:48 PM
  #39784  
the Wasp
My Feedback: (1)
 
Join Date: Sep 2003
Location: VT
Posts: 5,342
Likes: 0
Received 40 Likes on 38 Posts
Default

Originally Posted by Rudolph Hart

Since jim keeps posting two strokes you're on the pillion seat for life.

I can see a pattern developing between you and sr tele...keep it up and in the next life you will be riding this and that's all buddy
ps capt there is a will robison sticky attached to this thread,well worth reading and the guy built brilliant bikes to boot cheers
pps dave still to cold for the fa50?
but Pete, that 2 stroke is a Saito

Jim
Old 04-01-2019, 08:14 PM
  #39785  
Quikturn
My Feedback: (12)
 
Quikturn's Avatar
 
Join Date: Jan 2008
Location: West Des Moines, IA
Posts: 932
Received 6 Likes on 6 Posts
Default

OK. I finally got the lower end disassembled today. The drive washer was real stubborn to get off. Normally 2 jaw pullers and some heat due the trick but I ruined my el-cheapo puller in the process so I used heat on the drive washer and lightly hammered the crankshaft out. The crankshaft cleaned up real nice but I did find some light pitting in a spot in front of the main bearing. Took a wire wheel to it to smooth it out so Iíll go with it.
Old 04-02-2019, 01:46 AM
  #39786  
Rudolph Hart
 
Rudolph Hart's Avatar
 
Join Date: Apr 2008
Location: Perth, AUSTRALIA
Posts: 4,383
Likes: 0
Received 2 Likes on 2 Posts
Default



Psssst dave...can you modify the wife's new red car to these specs and report back?..it would take my mind off thinking about those pesky pushbike riders hogging all the good mountain corners at 5mph and five wide buddy,and can you let us know if you got round to running the fa50 yet

ps and you tell myra to drive real fast please
Old 04-02-2019, 02:53 AM
  #39787  
Jesse Open
 
Jesse Open's Avatar
 
Join Date: Mar 2018
Location: 30 Miles North of Canada Border
Posts: 3,667
Received 89 Likes on 81 Posts
Default




Old 04-02-2019, 03:09 AM
  #39788  
SrTelemaster150
Senior Member
 
SrTelemaster150's Avatar
 
Join Date: Feb 2012
Location: Brasher Falls, NY
Posts: 3,904
Likes: 0
Received 2 Likes on 2 Posts
Default

Originally Posted by Jesse Open



Or, if you don't have your own machine shop to fabricate something like that, you can buy something like this.

Old 04-02-2019, 03:38 AM
  #39789  
Glowgeek
 
Join Date: Feb 2016
Posts: 3,495
Received 61 Likes on 61 Posts
Default

Yeah, that's the ticket Gary. Nice puller and I like how it presses against the beveled collet instead of the crankshaft. Nothing more aggravating than having the whole works pull off instead of just the drive washer popping off when using a standard jaw puller.

SrTele, that 3 jaw puller is pretty sweet too. My modified 2 jaw puller doesn't have that squeezer mechanism. I ground a profile into the jaw tips to seat nicely in the drive washer groove. So far no slipping but it's bound to happen.

Last edited by Glowgeek; 04-02-2019 at 03:44 AM.
Old 04-02-2019, 04:03 AM
  #39790  
Hobbsy
My Feedback: (102)
 
Hobbsy's Avatar
 
Join Date: Dec 2001
Location: Colonial Beach, VA
Posts: 20,370
Likes: 0
Received 24 Likes on 24 Posts
Default

Originally Posted by Quikturn
OK. I finally got the lower end disassembled today. The drive washer was real stubborn to get off. Normally 2 jaw pullers and some heat due the trick but I ruined my el-cheapo puller in the process so I used heat on the drive washer and lightly hammered the crankshaft out. The crankshaft cleaned up real nice but I did find some light pitting in a spot in front of the main bearing. Took a wire wheel to it to smooth it out so I’ll go with it.

Quick, Dan turned me onto this puller at Amazon.com.

Posi-Loc 102, by screwing the lower handle down firmly tightening the jaws into the prop driver, it will not damage the prop driver.

https://www.amazon.com/Posi-Lock-Man...s%2C168&sr=8-1

Last edited by Hobbsy; 04-02-2019 at 04:08 AM.
Old 04-02-2019, 04:07 AM
  #39791  
Glowgeek
 
Join Date: Feb 2016
Posts: 3,495
Received 61 Likes on 61 Posts
Default Saito FA82 CR Mod

I decided to take the CR from the stock 8.89:1 up to 10.5:1 as a starting point. Shaved .018" off the case cylinder deck.

A few interesting things to note:
Even though the bottoms of the engine mounting ears were not machined by saito they appear to have been used by saito as a reference surface for machining the cylinder deck. The dial indicator showed only a .0002" variance in plane and that measurement was right next to a cylinder mounting hole. I chalked that up as a bulge from over tightening that cylinder mounting bolt.

The pushrod covers were over compressing the rubber seals so .020" was removed from their length.

The weather sucked here yesterday, cold and very high humidity but I still saw 9300 rpm. 100 rpm up from a previous run on a 60įf low humidity day . Only 1/2 tank of fuel so far after the CR mod. A couple more tanks will tell the whole story.

I've run this engine on cold wet days before and have had no problem getting the engine temps up. On this run with the raised CR the engine never reached normal operating temp even at wot.

More later

Last edited by Glowgeek; 04-02-2019 at 04:21 AM.
Old 04-02-2019, 04:10 AM
  #39792  
the pope
Senior Member
 
Join Date: Apr 2005
Location: goolwasa, AUSTRALIA
Posts: 1,680
Likes: 0
Received 0 Likes on 0 Posts
Default

Give that puller that Gary made any day . Its even shiny and some of the parts are made with 24 carrot gold ! I would be 1st in line to buy one of those . Cheers
Old 04-02-2019, 04:23 AM
  #39793  
Hobbsy
My Feedback: (102)
 
Hobbsy's Avatar
 
Join Date: Dec 2001
Location: Colonial Beach, VA
Posts: 20,370
Likes: 0
Received 24 Likes on 24 Posts
Default

Originally Posted by Rudolph Hart


Psssst dave...can you modify the wife's new red car to these specs and report back?..it would take my mind off thinking about those pesky pushbike riders hogging all the good mountain corners at 5mph and five wide buddy,and can you let us know if you got round to running the fa50 yet

ps and you tell myra to drive real fast please

Geri hasn't been allowed to drive for about 8 weeks, her right leg was nearly non functional, therapy has brought it back a long way.

That thing reminds me of a Paul Harvey story from 25 or 30 years ago, an 18 wheeler driver was traveling though Germany, he had not locked the safety catch that prevents the big bar that holds the tail gate closed from sliding out. Bumps and vibration caused it to drift out, eventually it got out far enough it killed a guy walking down the road. A motorist saw this and started flashing his lights and pulling up beside the truck where it was safe. The trucker finally stopped, the motorist told him what he had seen, the trucker made U turn and headed back to the scene, On the way back he killed a second guy, he had gotten so upset that he didn't think to push the bar back in.

I may get to the 50 today.
Old 04-02-2019, 04:29 AM
  #39794  
Glowgeek
 
Join Date: Feb 2016
Posts: 3,495
Received 61 Likes on 61 Posts
Default

Originally Posted by Hobbsy
Geri hasn't been allowed to drive for about 8 weeks, her right leg was nearly non functional, therapy has brought it back a long way.

I may get to the 50 today.
Best wishes for a full recovery for Geri.

Can't wait to see that head to head muffler test
Old 04-02-2019, 04:54 AM
  #39795  
Jesse Open
 
Jesse Open's Avatar
 
Join Date: Mar 2018
Location: 30 Miles North of Canada Border
Posts: 3,667
Received 89 Likes on 81 Posts
Default

Originally Posted by Glowgeek
Yeah, that's the ticket Gary. Nice puller and I like how it presses against the beveled collet instead of the crankshaft. Nothing more aggravating than having the whole works pull off instead of just the drive washer popping off when using a standard jaw puller.

SrTele, that 3 jaw puller is pretty sweet too. My modified 2 jaw puller doesn't have that squeezer mechanism. I ground a profile into the jaw tips to seat nicely in the drive washer groove. So far no slipping but it's bound to happen.
Thanks Geekster,

The principle employed is quite a bit different from the Fiz-All type pullers. I have a HUGE collection of pullers on hand. Mostly leftovers from the machine repair days, (Including HEAVY machines/HEAVY pullers) , the automotive machine shop I helped run as part owner, and a lot of motorcycle specific pullers to boot. Many of those were also home made. There is NO chance to make even a slight mark with the full contact brass split collet. The sleeve bearing against the inner taper collet also reduces the required force and better protects the crank nose.

As you know, Doesn't really take a lot of cash to acquire some useful machinery if you kick the bushes and shop well, especially here in the Detroit area. The machines involved in making that puller were a $100 Bridgeport and a $500 Clausing 10 inch lathe.
Far less money involved than a high end chainsaw or a couple of Saito engines! The machines help out with several hobby activities as well. From planes to home made high quality ribbon microphones, to guitar work and gunsmith work. The machines will be here as long as I can move my hands and see to use them!

In fact, I would far rather have a single RC plane and engine and the machines, than 10 or 20 planes and 30 Saito engines. Easy to say however when you have both I guess

Last edited by Jesse Open; 04-02-2019 at 05:02 AM.
Old 04-02-2019, 05:15 AM
  #39796  
Jesse Open
 
Jesse Open's Avatar
 
Join Date: Mar 2018
Location: 30 Miles North of Canada Border
Posts: 3,667
Received 89 Likes on 81 Posts
Default

Dave, our thoughts are with you. Sounds like the progress so far is in the right direction.
Old 04-02-2019, 06:07 AM
  #39797  
Hobbsy
My Feedback: (102)
 
Hobbsy's Avatar
 
Join Date: Dec 2001
Location: Colonial Beach, VA
Posts: 20,370
Likes: 0
Received 24 Likes on 24 Posts
Default

Thankyou gents, you are most kind.

PS, I am now registered FAA Drone Zone Pilot. I feel so great. Minus 5 bucks of course.
Old 04-02-2019, 06:30 AM
  #39798  
FlyerInOKC
My Feedback: (6)
 
FlyerInOKC's Avatar
 
Join Date: Nov 2004
Location: Oklahoma City, OK
Posts: 13,994
Received 227 Likes on 203 Posts
Default

OK I have been watching a Greek build an 1/4 scale version of one of my plane projects on YouTube for a while. In the latest installment you get to see what engine he selected. I thought you guys might like to see. Skip to about 23 secs. will show the engine. My 1/5th scale will require me to scare up a Saito .91 or 1.00.

.
Old 04-02-2019, 06:41 AM
  #39799  
Jesse Open
 
Jesse Open's Avatar
 
Join Date: Mar 2018
Location: 30 Miles North of Canada Border
Posts: 3,667
Received 89 Likes on 81 Posts
Default

Looks like flying my own planes is history. I refuse to get permission from big brother.
Old 04-02-2019, 06:49 AM
  #39800  
FlyerInOKC
My Feedback: (6)
 
FlyerInOKC's Avatar
 
Join Date: Nov 2004
Location: Oklahoma City, OK
Posts: 13,994
Received 227 Likes on 203 Posts
Default

Originally Posted by Jesse Open
Looks like flying my own planes is history. I refuse to get permission from big brother.
I'm sure you are not the only one feeling that way. I wonder how many guys are making up a bogus FAA number and putting it on all their airplanes so the locals got a number to look at? I haven't heard a database they can run the numbers through to check them. I think the FAA number is more for the appearance of doing something then doing something worthwhile.

Last edited by FlyerInOKC; 04-02-2019 at 06:52 AM.

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell or Share My Personal Information -

Copyright © 2023 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.