Hobbsy

My Feedback: (102)

Come, Come now JH, that's not even half of it.[8D]

mschulz531

Kostas1, You said your "new" engine has something missing. Is this engine purchased new or did you purchase it from a previous owner?
The pictures you sent showed some marks around the carb screws that lead us to question this engine, and the missing spring clip provides further evidence that something happened to this engine before you acquired it, perhaps a crash of some kind....?

Do you know the seller of this engine? Do you trust them? Hopefully this engine was not sold to you as "new in box"!

I would question the seller about the history of the engine and do a thorough check of the engine before you attempt to start it.

w8ye

My Feedback: (16)

It looks like someone put a needle valve upgrade kit in it and buggered up the spray bar retaining nut with a pair of neelde nose pliers?

They forgot the spring clip

Being has they didn't have any wrenches, they may have the slit on the spray bar at the wrong angle too? Will it run?

The spray bar upgrade kit is $9.95 plus shipping and includes the spring.

mike early

Women shouldn't work on Saitos!

mschulz531

Mike, that is a classic response...I'm still laughing!!! It should be put in the hall of fame or "Top Ten Responses" list!
(:>)

rocketman-RCU

My Feedback: (73)

Ok, I forgot the install of the cam gear on the Saito 1.70R. Does the dot on the cam gear go on the crank shaft gear at bottom dead center?

mschulz531

Yes

w8ye

My Feedback: (16)

TOP DEAD CENTER

rocketman-RCU

My Feedback: (73)

It looks to me like it should be BDC because the cam lobes are on the same side as the gear dot.?

w8ye

My Feedback: (16)

It is your engine - go for it.

rocketman-RCU

My Feedback: (73)

No, I want an explanation!

w8ye

My Feedback: (16)

In all cam timing references in the Saito manual - It is always TOP dead center of the piston

Craig 01

mschulz531

Sorry, I guess being a radial it is an entirely different animal. Please excuse my incorrect statement earlier.
Is it true that for small single cylinder Saito engines the dot is at bottom dead center when reassembling?

Craig 01

The confusion i believe has come from your reference of BDC with regard to cam location/position.
Piston and crank location/position is referenced as TDC and BDC .
The cam position reference dot must be at the 6 o'clock position with centre line of cylinder with crankshaft/piston at TDC for that cylinder when reassembling.
To even out power pulses through the cycle on a radial cam time each alternate cylinder through the cycle,for the saito 3 cylinder that would be 1-3-2

w8ye

My Feedback: (16)

Set your cam mark positioned towards the crank with the piston at BDC and see how great it runs? Then you will have your answer?

Kostas1

Could you be more specific Hobbsy ?
I didn't get it ....?

Is there a problem with the parts that assemble the NV/carb ?

I also couldn't find the parts i need on HHobby,
but i located them at UK and will order the whole set.

It's truly a shame that HH don't carry such parts....

Rudolph Hart

I've heard the 325 radial on bundled flex pipes pointing out the bottom and they sound like a singer sewing machine at half pedal..thank God for keleo ring collectors especially when you throttle back.Thanks for the link and sound,looks like it hauls the mail mate.

Craig 01

On Ya Old Fart,Singers were a sweet running machine,alhough i wouldn't want an engine to carry a similar exhaust note,especially a radial.

w8ye

My Feedback: (16)

Here are the parts you need at Horizon

http://www.horizonhobby.com/Products...D=SAI450R3D84A

It has been linked to already for you.

What Hobbsy is talking about is that someone has already put this upgrade kit in your carb. They did it with pliers and ruined everything. It is a given that if they used pliers and left off the ratchet spring, they didn't know what they were doing and didn't install the spray bar correct either? There is a notch in the spray bar outlet that must be aimed towards the engine.

Hobbsy

My Feedback: (102)

As Jim says, this slot needs to be towards the intake valve.

Kostas1

OK i made it with the SAITO today !

Check here : http://www.rcuniverse.com/forum/m_10...m.htm#10113081

wyo69cowboy

My Feedback: (2)

Okay, I've been messing with the cam timing a bunch on my Saito 1.00, and had posted about it several pages back. I've gone a couple of teeth either advance or retarded, and can definitely tell when it's wrong: only get high 7's/low 8k's when it's wrong. I just keep thinking there's more in this engine that I'm not getting somehow. Best I get is 8700 on an APC 15x6, running Byron 20/20. Just for kicks, I ran my Saito .82 last nite with the same prop, and it will spin it 8200. I am expecting too much from the 1.00? Seems like the tach forums all show more rpm for this prop on the 1.00...

1974hd

This is a great place for information on Saitos. I have Two 125's one 100 and an 82. I have just finished putting new bearings in my 82 and after  putting it all together I destroyed my prop flange. I put my prop flange in the oven and after heating it at 325 for half an hour I went to install it and it was stuck part way on the shaft. My plan was to take it off heat it more and try it again. I damaged the thin edge with my puller. I have a new one on the way.  After reading on this forum I will reassemble it in two pieces tapered collet first then the aluminum prop flange over that. I have since learned to research before jumping into something. I have a Hangar 9 tach that I cant get a good reading on my RPM's does anybody have any suggestions on how to properly use it or a better tach that wont break the bank. Thanks in advance

w8ye

My Feedback: (16)

This tach works pretty well for the money

http://www3.towerhobbies.com/cgi-bin...&I=LXPT31&P=ML