Notices
Glow Engines Discuss RC glow engines

Welcome to Club SAITO !

Old 07-30-2012, 04:25 AM
  #22801  
My Feedback: (1)
 
Join Date: Dec 2011
Location: shreveport, LA
Posts: 1,047
Received 35 Likes on 30 Posts
Default RE: Welcome to Club SAITO !

When I get home from wirk
I will take pictures of engine
And video
ORIGINAL: Cougar429

Are you spinning the motor with the plug removed? If you feel any roughness at all I would NOT recommend spinning the crank till at least a mechanical check is done on the internals. You may cause more problems. If you have the skills and the motor spins smoothly at least remove the valve covers to check for integrity and mechanical action.

If you have access to a machine shop or know of anyone that does you can have them dial indicate the crank. However, the best method would likely be with the crank removed. It would also allow for straightening if not too far out-of-true.

Personally I find it surprising the crank took a hit bad enough to bend without either compromising the bearings or the pushrod tubes taking a hit.
Old 07-30-2012, 04:57 AM
  #22802  
Senior Member
My Feedback: (12)
 
lopflyers's Avatar
 
Join Date: Jun 2010
Location: Orlando, FL
Posts: 1,520
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Welcome to Club SAITO !

Hey ortho, I had a bent crankshaft once, I threw it in the trash and replaced it. Too much trouble to straight it out for what a new one cost[:-]<div>
</div><div>
</div>
Old 07-30-2012, 08:18 AM
  #22803  
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 RE: Welcome to Club SAITO !

Actually, with the right tools straightening a bent crank is not that difficult. I have done it many times, but have access to those tools at work. that is why I recommended a machine shop. The key is to have accurate V-blocks for the crank to ride on indicate the ends and then a way to apply the correct amount of force in the proper location to bend it back.

Every time I have had to do it the crank was bent outside the much larger crank boss that rides within the bearings and that narrower portion can be relatively flexible.
Old 07-30-2012, 12:06 PM
  #22804  
My Feedback: (1)
 
Join Date: Dec 2011
Location: shreveport, LA
Posts: 1,047
Received 35 Likes on 30 Posts
Default RE: Welcome to Club SAITO !

no doubt i am with you here i removed the spark plug and removed prop and it is more than obvious to naked eye that it is bent i will order new one do you think it will be difficult to change out? https://www.youtube.com/watch?v=N12RuQRHJ2w
Old 07-30-2012, 01:08 PM
  #22805  
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 RE: Welcome to Club SAITO !


ORIGINAL: orthobird

no doubt

i am with you here

i removed the spark plug and removed prop
and it is more than obvious to naked eye
that it is bent

i will order new one


do you think it will be difficult to change out?



https://www.youtube.com/watch?v=N12RuQRHJ2w

$64.59 W/free shipping from here.

http://www.advantagehobby.com/27021/SAI125A23/
Old 07-30-2012, 02:22 PM
  #22806  
My Feedback: (1)
 
Join Date: Dec 2011
Location: shreveport, LA
Posts: 1,047
Received 35 Likes on 30 Posts
Default RE: Welcome to Club SAITO !

here is where i am at now took me about 20 minutes to get here very easy

Attached Thumbnails Click image for larger version

Name:	Zx70901.jpg
Views:	34
Size:	71.1 KB
ID:	1787714  
Old 07-30-2012, 02:50 PM
  #22807  
Junior Member
My Feedback: (38)
 
Join Date: Oct 2004
Location: Yakima, WA
Posts: 25
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Welcome to Club SAITO !

Velocity Stacks

I was looking everywhere on the web for the velocity stacks for the saito mid-block engines. I found some in the UK at: http://hobbyplastic.co.uk/index.php?...oducts_id=2208. I ordered two of them and it was $20 (U.S.) including shipping to Washington state. Just an FYI if anybody else is trying to get one sooner than later. By the way I have a Saito .56, .91 and 1.00, can I play too? -Tim
Old 07-30-2012, 03:47 PM
  #22808  
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 RE: Welcome to Club SAITO !


ORIGINAL: orthobird

here is where i am at now

took me about 20 minutes to get here

very easy

While you are @ it, you might want to replace the front bearing since it took a hit. an extra $12 would be cheap insurance..
Old 07-30-2012, 06:53 PM
  #22809  
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 RE: Welcome to Club SAITO !

If you want to send me the crank I can have a go at straightening it. If it works out you would have a spare.
Old 07-30-2012, 06:59 PM
  #22810  
My Feedback: (1)
 
Join Date: Dec 2011
Location: shreveport, LA
Posts: 1,047
Received 35 Likes on 30 Posts
Default RE: Welcome to Club SAITO !

ok i just o rdered this as well it was very easy to remove the front bearing thank you so much for the advice my only concern is when i reassemble the engine getting the camgear to line up properly with the crankshaft pinion gear<br type="_moz" />
Old 07-30-2012, 07:02 PM
  #22811  
My Feedback: (1)
 
Join Date: Dec 2011
Location: shreveport, LA
Posts: 1,047
Received 35 Likes on 30 Posts
Default RE: Welcome to Club SAITO !

sounds like an offer i cannot refuse i just saw where you live right across from detroit i/ve been there, detorit side that is but i also have been to toronto and to montreal
both beautiful cities!!
ORIGINAL: Cougar429
If you want to send me the crank I can have a go at straightening it. If it works out you would have a spare.
Old 07-30-2012, 07:04 PM
  #22812  
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 RE: Welcome to Club SAITO !

There are several instructions on assembly that are a big help. Here's one with pics:

http://www.rcuniverse.com/forum/m_95...tm.htm#9515164
Old 07-30-2012, 07:08 PM
  #22813  
My Feedback: (1)
 
Join Date: Dec 2011
Location: shreveport, LA
Posts: 1,047
Received 35 Likes on 30 Posts
Default RE: Welcome to Club SAITO !

this guyseamusg is a genius thanks for the link now i know what to do also you have a great memory to recall you had seen this before
and thank you so much for replying and giving me the answer that is very very nice of you!!
ORIGINAL: Cougar429
There are several instructions on assembly that are a big help. Here's one with pics:
http://www.rcuniverse.com/forum/m_95...tm.htm#9515164
Old 07-31-2012, 05:25 AM
  #22814  
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 RE: Welcome to Club SAITO !

Don't forget to lube everything before assembly. I use air tool oil, (identical to turbine oil) but castor, Mystery or any other good quality assembly oil should work if it has good adhesion. This means it protects the parts well and stays where you need it till replaced with the lube from the fuel.

Try to avoid spinning a fully assembled motor till it has running time since you can wipe the oil from the cylinder wall or squeeze it from between metal/metal contact points.

As with any motor, the first few seconds and minutes of running in make a HUGE difference.
Old 07-31-2012, 10:35 AM
  #22815  
 
Join Date: Jun 2007
Location: Turku, FINLAND
Posts: 305
Likes: 0
Received 1 Like on 1 Post
Default RE: Welcome to Club SAITO !

ORIGINAL: Cougar429

Don't forget to lube everything before assembly. I use air tool oil, (identical to turbine oil) but castor, Mystery or any other good quality assembly oil should work if it has good adhesion. This means it protects the parts well and stays where you need it till replaced with the lube from the fuel.

Try to avoid spinning a fully assembled motor till it has running time since you can wipe the oil from the cylinder wall or squeeze it from between metal/metal contact points.

As with any motor, the first few seconds and minutes of running in make a HUGE difference.
Hi Cougar is Aerosave synthetic oil fine for this purpose, too? I mean for lubrication of the parts before assembly? Thanks, Artto ( proud to be a new club member # 784)
Old 07-31-2012, 10:52 AM
  #22816  
 
Mein Duff's Avatar
 
Join Date: May 2009
Location: Santa Rosa, CA
Posts: 1,045
Likes: 0
Received 1 Like on 1 Post
Default RE: Welcome to Club SAITO !

read recently that gas engines do not need to be run-in.......Ok we're talking 4 strokes in this forum but is this true?
Old 07-31-2012, 12:45 PM
  #22817  
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 RE: Welcome to Club SAITO !

Engine Break-in
Do not skip the engine break-in; you will risk
seizing the conrod to the crankshaft.
The break-in process required for all Saito engines
is designed to break-in the conrod to crankshaft
interface more than to seat the ring. The ring will
seat gradually over time and the engine will develop
more and more power. The conrod needs to be
treated correctly from the beginning.

From the Saito FG21 manual
Old 07-31-2012, 02:01 PM
  #22818  
My Feedback: (9)
 
Join Date: Jun 2009
Location: Arlington, TX
Posts: 720
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Welcome to Club SAITO !

Gas engines need break-in. Read the mfg's instructions and break in accordingly.

RJ
Old 07-31-2012, 02:54 PM
  #22819  
Senior Member
 
Join Date: Apr 2010
Location: Cairns, AUSTRALIA
Posts: 1,053
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Welcome to Club SAITO !

AS an aside on the gas thing, so Saito has bought out the FG 21 (and "lost the FG 20)  I read a lot about the failings of the FG20 but have yet to see one fail personally.  True they had carby problems here in OZ and yes it would appear as if most of the problems come from our typically male failing of not reading the instructions correctly (fully / competely) and thus coming to grief.  I have seen a cylinder blow of a Saito twin because the carby to that cylinder was leaned out far to much, (thus done by the field Saito expert), and I have seen in my field of competition to many people trying to extract that last ounce of performance out of the engine buy far exceeding the manufacturers recommendations.  The later is good because I usually end up with cheap engines.
The message I am trying to convey here is, if in doubt ask, read and absorb all the data to hand for your new toy and apply it plus any experience you have to achieving the desired result and lastly if in doubt ask and ask again until you get the desired info
Keep up the good work here guys both my old mentor and myself learn something new every day.
Old 07-31-2012, 07:03 PM
  #22820  
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 RE: Welcome to Club SAITO !

Not familiar with Aerosave, so have no recommendations there. If in doubt a local auto supply house should have a small bottle of engine assembly oil. We used it for years to prelube metal/metal contact faces, such as crank bearings and cam lobes.

Personally I use my own mix for an after-run oil that is a 50/50 ratio of ATF, (automatic transmission fluid) and air tool oil. Recently I also added a metal conditioner that is much thicker and helps retention, but the straight 50/50 mix has worked for me for over 25 years in after-run, long term storage and assembly.
Old 07-31-2012, 09:35 PM
  #22821  
 
Ernie Misner's Avatar
 
Join Date: Jul 2002
Location: Tacoma, WA
Posts: 5,037
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Welcome to Club SAITO !

Synthetic (blend) assembly grease is available at auto parts stores also. It may be similar to what resides in new Saitos and there is some super high strength compounds in it.

Ernie Misner
Old 08-01-2012, 04:36 AM
  #22822  
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 RE: Welcome to Club SAITO !

Ernie, here is the factory lube in a new Saito 1.15, picture #2 is the first oil from the crankcase, Jim, Barry and I had to unscare a few people who panicked when they saw the black coloration.
Attached Images   
Old 08-01-2012, 09:17 AM
  #22823  
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 RE: Welcome to Club SAITO !

Here are a couple of more numbers:

loudbikes 786

cougar429 787


Anyone else need a number?
Old 08-01-2012, 09:26 AM
  #22824  
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 RE: Welcome to Club SAITO !

Thanks. How do I add that to the bottom area of my posts?
Old 08-01-2012, 09:36 AM
  #22825  
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 RE: Welcome to Club SAITO !

ORIGINAL: Cougar429

Thanks. How do I add that to the bottom area of my posts?

Go to the top & hover over the "FORUMS" button.

On the drop down select "Settings".

You will find a field to enter your signature. After you enter what you want in your signature, go to the bottom & click "Apply".

Your signature will then appear in all of your posts, past, present & future

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.