Notices
Glow Engines Discuss RC glow engines

Welcome to Club SAITO !

Old 07-25-2014, 07:19 PM
  #27101  
Senior Member
 
Join Date: Sep 2004
Location: Lawrenceville, GA
Posts: 152
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by flyingagin
am planning at some point a tri motor bi plane.
Ken
If you ever get four (or two), go for a Handley Page 42, you'll never have to worry about being tail heavy.
Good luck on the disability, it took me 2 years of lawyers and $7k and I was bed ridden for 6 months and a year before I could walk to the mail box. (lung infection left me with emphysema and copd)
4 years later and I'm now able to spend 2 or 3 hours at the field (depending on temps) with #1 son doing the carrying and pit work.
Nick
Old 07-26-2014, 01:42 AM
  #27102  
 
Rudolph Hart's Avatar
 
Join Date: Apr 2008
Location: Perth, AUSTRALIA
Posts: 4,383
Likes: 0
Received 2 Likes on 2 Posts
Default

Originally Posted by acdii
Aww man wish I had one with the mud on it, then I could post and say, this is what they look like after kissing dirt.
acdc if you post one of your engines over to me i think i can help out
Old 07-26-2014, 05:52 AM
  #27103  
 
flyingagin's Avatar
 
Join Date: Feb 2009
Location: Orange, TX
Posts: 2,544
Received 25 Likes on 23 Posts
Default

Originally Posted by taildragger1589
If you ever get four (or two), go for a Handley Page 42, you'll never have to worry about being tail heavy.
Good luck on the disability, it took me 2 years of lawyers and $7k and I was bed ridden for 6 months and a year before I could walk to the mail box. (lung infection left me with emphysema and copd)
4 years later and I'm now able to spend 2 or 3 hours at the field (depending on temps) with #1 son doing the carrying and pit work.
Nick
I am thinking of something that looks more like a Boeing model 80, but not really a scale model, just my own design that has the spirit and looks of a '28-'29 airliner

Wife got her disability first try (stroke). But I do expect mine to take a bit, that and the suit to collect for the red light runner that hit me. 2 surgeries since.

Ken
Old 07-26-2014, 06:39 AM
  #27104  
blw
My Feedback: (3)
 
blw's Avatar
 
Join Date: Mar 2004
Location: Opelika, AL
Posts: 9,447
Likes: 0
Received 2 Likes on 2 Posts
Default

Originally Posted by FNQFLYER
New project (amongst many others) is to try out the new OS GGT plug in a Saito glo fuelled with petrol. The fuel mix is the problem. Saito 30 powering a 6 foot Lanzo Racer for Texaco, 12 mils of 10% nitro fuel gives between 3 and 4 minutes engine run with an audio tacho reading of around 5,000rpm. Latest data. Day was calm temp arounf 23 degrees centigrade, yes it was a tad cold.
Audio tach? Would that be an older manufactured type?

I also have a Ultra Sport 60 halfway built waiting for a Saito 91. I bought it from a guy here on RCU and it is a very smooth engine. Looks like it will have a lot of power but I didn't tach it when I ran it on the stand.
Old 07-26-2014, 08:07 AM
  #27105  
My Feedback: (3)
 
Join Date: Oct 2002
Location: Fair Oaks Ranch, TX
Posts: 2,635
Received 3 Likes on 2 Posts
Default

Originally Posted by flyingagin
Take that drive to some who knows what they are doing. I have no idea how many "smoked?" hard drives I have recovered info off of. I only failed once.

Sure wish I was one of the guys with a Saito .30 or actually several. I am planning at some point a tri motor bi plane. Well maybe when there is some income coming in again. Trying to get disability, back is done for, 3 surgeries in on year.


Ken
What amazes me is how many folks don't do back ups. Or run UPS's. But I am picky about stuff I value.

The Saito .30 is a wonderful engine and great fun to play with. It looks and sounds great in one of the old HOB T-6's and that is where mine resides.
Old 07-26-2014, 11:23 AM
  #27106  
My Feedback: (28)
 
bob62's Avatar
 
Join Date: Jan 2004
Location: Bay City, TX
Posts: 474
Likes: 0
Received 0 Likes on 0 Posts
Default

Here it is P-38 with twin Saito 30's http://youtu.be/g949371wXF8



Go to you tube and put in P-38 with twin Saito 30's and it come up

Last edited by bob62; 07-26-2014 at 05:07 PM.
Old 07-26-2014, 11:29 AM
  #27107  
My Feedback: (1)
 
Join Date: Feb 2002
Location: Sutter Creek, CA
Posts: 1,042
Received 0 Likes on 0 Posts
Default

Originally Posted by bob62
Here it is P-38 with twin Saito 30's http://youtu.be/g949371wXF8
"This video does not exist."
Old 07-26-2014, 01:30 PM
  #27108  
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 RC_Fanatic
"This video does not exist."

The other link doesn't work either.
Old 07-26-2014, 01:42 PM
  #27109  
My Feedback: (1)
 
Join Date: Feb 2002
Location: Sutter Creek, CA
Posts: 1,042
Received 0 Likes on 0 Posts
Default

Try this http://www.youtube.com/watch?v=n2IQ8ugSSW0 until we get the right one.
Old 07-26-2014, 02:59 PM
  #27110  
Senior Member
 
Join Date: Apr 2010
Location: Cairns, AUSTRALIA
Posts: 1,053
Likes: 0
Received 0 Likes on 0 Posts
Default

Old Fart I keep trying to update my profile but the damm thing won't keep it up dated. Today is great (except the temps) just finishing breakfast, and should arrive at the field the same time as the peasants coming in from Brisbane (1 hour away). I am still getting used to a field that is closer in time to get to than that is required to pack the car with 3 models (10 minutes) Audio Tachometer, modern thing purchased from local electronics store a few weeks ago. They are used at most serious O/T comps to "keep the illegimate children honest" Fuel thing, I am still not up to speed with gas engines and OS are specifying very specific fuels for this GGT thing so we are approaching with caution. I am going to have to give this Saito 30 back to its owner after next w/end and get mine out of its box and start running it in. (Its NIB)
Old 07-26-2014, 05:32 PM
  #27111  
 
Rudolph Hart's Avatar
 
Join Date: Apr 2008
Location: Perth, AUSTRALIA
Posts: 4,383
Likes: 0
Received 2 Likes on 2 Posts
Default

Ok i'll follow your progress with interest mate.Might even try it myself.

Bob thanks for trying with the vid i've yet to post one,and it will have to be a new one now.

ps trying to get a flight with the 82 and deccy in today if the rain will just ease up a bit.It's my hacker and we have flown in light showers before.It's fun to watch the prop spray but every now and then the 82 will have a hiccup.
Old 07-26-2014, 09:58 PM
  #27112  
Senior Member
 
Join Date: Apr 2010
Location: Cairns, AUSTRALIA
Posts: 1,053
Likes: 0
Received 0 Likes on 0 Posts
Default

Old Fart I am running an 11x6 APC standard prop on the 30 for Texaco. It is capable of about 65 to 7000rpm in current trim but in normal trim with this prop it will do upwards of 10,000 rpm with a few Steroids (about 20%). Worked well today.
Old 07-29-2014, 03:58 AM
  #27113  
 
Rudolph Hart's Avatar
 
Join Date: Apr 2008
Location: Perth, AUSTRALIA
Posts: 4,383
Likes: 0
Received 2 Likes on 2 Posts
Default

Fnq the 30 has huge acceleration with a 6" pitch on anything light as you know.10500 plus is easy on the mas s2 props in 10x6,if you are getting around 10000 on an apc 11x6 you are well tuned friend

ps...pssssst..don't mention nitro ok ?..just kidding.

pps just got my back up system going...everything seems to happen much faster..is there a cure for that?

Last edited by Rudolph Hart; 07-29-2014 at 04:00 AM. Reason: more bs
Old 07-29-2014, 07:47 AM
  #27114  
 
Join Date: Dec 2004
Location: Durant OK
Posts: 159
Received 4 Likes on 4 Posts
Default

Old Saito 45 ran fine when I put it away years ago. Now the pushrods don't go up and down. I don't see any bad teeth on either cam drive gear. The cam rotates ok when I remove its housing from the engine. Is the cam drive gear spinning on the crankshaft? Are the cam lobes worn out? Or is it something else? Thanks.

Last edited by wnewbury; 07-29-2014 at 10:52 AM.
Old 07-29-2014, 12:25 PM
  #27115  
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 wnewbury
Old Saito 45 ran fine when I put it away years ago. Now the pushrods don't go up and down. I don't see any bad teeth on either cam drive gear. The cam rotates ok when I remove its housing from the engine. Is the cam drive gear spinning on the crankshaft? Are the cam lobes worn out? Or is it something else? Thanks.
Tappets stuck in the bores at the up (open) position? Are the valves opened or closed?
Old 07-29-2014, 03:52 PM
  #27116  
 
Join Date: Dec 2004
Location: Durant OK
Posts: 159
Received 4 Likes on 4 Posts
Default

Valves are not stuck. I checked. Rockers are OK. Pushrods are loose - OK. The cam was a little cruddy but I didn't notice excessive wear.

Only thing I can figure is that it ran bad when I put it away. Too long ago to remember for sure. Engine was stuck from castor fuel. Not seized up.

Does the pointed end of the pushrod go up into the rocker? Are the gear teeth machined onto the crankshaft or is it a separate gear than can come loose?

Thank you for your help! I have 6 Saitos but this is the first time I have needed to open one up.
Old 07-29-2014, 04:13 PM
  #27117  
My Feedback: (2)
 
Join Date: Jul 2002
Location: Brockton, MA
Posts: 4,290
Received 7 Likes on 7 Posts
Default

If I can hop in here... there might be one more thing to look at.... there is a "Tappet" (Part no. 38 on the Saito blow-up in the manual) between the bottom end of the crankshaft and the cam. I am betting that that is stuck with congealed caster oil. You could try heating that area with a heat gun and squirting some light 3-in-1 oil down the inside of the pushrod cover. That could be where the problem might lie.

Just my $.02

Bob
Old 07-29-2014, 04:32 PM
  #27118  
My Feedback: (102)
 
Hobbsy's Avatar
 
Join Date: Dec 2001
Location: Colonial Beach, VA
Posts: 20,370
Likes: 0
Received 25 Likes on 25 Posts
Default

Pointed end up
Old 07-29-2014, 04:44 PM
  #27119  
My Feedback: (2)
 
Join Date: Jul 2002
Location: Brockton, MA
Posts: 4,290
Received 7 Likes on 7 Posts
Default

The cam teeth are machined into the crankshaft. It's not a separate, removable part.

Just another $.02

Bob
Old 07-29-2014, 07:57 PM
  #27120  
 
Join Date: Dec 2004
Location: Durant OK
Posts: 159
Received 4 Likes on 4 Posts
Default

Stuck tappets / lifters.
Thank you all for your help!!
Old 07-30-2014, 02:13 AM
  #27121  
 
Rudolph Hart's Avatar
 
Join Date: Apr 2008
Location: Perth, AUSTRALIA
Posts: 4,383
Likes: 0
Received 2 Likes on 2 Posts
Default

Nice detective work bob!
Old 07-30-2014, 02:34 AM
  #27122  
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 SrTelemaster150
Tappets stuck in the bores at the up (open) position? Are the valves opened or closed?
Originally Posted by wnewbury
Stuck tappets / lifters.
Thank you all for your help!!
That's why I asked if the valves were opened or closed. The tappets would stick in the open position, otherwise the engine would not turn over W/O stripping cam gear teeth. Stuck tappets would leave BOTH valves in the open position.
Old 07-30-2014, 03:19 AM
  #27123  
Senior Member
My Feedback: (3)
 
Cougar429's Avatar
 
Join Date: Apr 2008
Location: Tecumseh, ON, CANADA
Posts: 1,233
Likes: 0
Received 1 Like on 1 Post
Default

O/K, even with my experience I'm a bit stumped by this one. The $50 125a I mentioned earlier now has 7 flights on it and runs like all the rest. Normal smoke trail and solid performance through the throttle range.

However, without a lot of time on the first 125 in Rare Bear, I'm amazed at the fuel consumption. With the 91's and 100's I can count on at least half a 12 oz tank remaining at the end of a normal 9 minute flight. The WACO has that size tank, yet with anything over half throttle for take off and the occasional burst, have risked dead stick if I extend it that long.

That fuel burn should mean a lot of cleaning before packing up. Unexpectedly this is one of the least painful of my chores as the airframe has been far less of a mess than the 100 powered Super Bolt. So far the engine and Slimline exhaust shows no sign of baked on crud, either.

I would think a 1 oz/min consumption a reasonable expectation. So, unless aliens are absconding with the remainder, (better get out the tin foil hat!) can't figure where all that fuel is going.

p.s. Yes, I know the next question would be if there is a hole in the fuel system. Bare fuselage for transport and nothing evident in the tank/firewall area.
Old 07-30-2014, 04:01 AM
  #27124  
 
Join Date: Jun 2007
Location: Turku, FINLAND
Posts: 305
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by Cougar429
O/K, even with my experience I'm a bit stumped by this one. The $50 125a I mentioned earlier now has 7 flights on it and runs like all the rest. Normal smoke trail and solid performance through the throttle range.

However, without a lot of time on the first 125 in Rare Bear, I'm amazed at the fuel consumption. With the 91's and 100's I can count on at least half a 12 oz tank remaining at the end of a normal 9 minute flight. The WACO has that size tank, yet with anything over half throttle for take off and the occasional burst, have risked dead stick if I extend it that long.

That fuel burn should mean a lot of cleaning before packing up. Unexpectedly this is one of the least painful of my chores as the airframe has been far less of a mess than the 100 powered Super Bolt. So far the engine and Slimline exhaust shows no sign of baked on crud, either.

I would think a 1 oz/min consumption a reasonable expectation. So, unless aliens are absconding with the remainder, (better get out the tin foil hat!) can't figure where all that fuel is going.

p.s. Yes, I know the next question would be if there is a hole in the fuel system. Bare fuselage for transport and nothing evident in the tank/firewall area.
I guess you have adjusted the LS needle? It efffects on the fuel consumption in 80% of the throttle range. In my case the cosumption dropped at least by 50%
Old 07-30-2014, 04:45 AM
  #27125  
My Feedback: (102)
 
Hobbsy's Avatar
 
Join Date: Dec 2001
Location: Colonial Beach, VA
Posts: 20,370
Likes: 0
Received 25 Likes on 25 Posts
Default

The fuel comsumption on the 1.25 should normally be about 1.25 oz per mnute at full throttle. The 1.25 has a huge exhaust, so maybe a combination of good piston ring seal and the huge exhaust, the lube is not concentrated enough to collect on things.

Thread Tools
Search this Thread

Contact Us - Manage Preferences Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.