Hobbsy

My Feedback: (102)

Richard, the nose cone is rather soft but my standard insert in my Dynatron makes contact out side of it.

mike early

It will fit perfectly

w8ye

My Feedback: (16)

If you are going to order a back plate, keep in mind that the 72A/82A carb was attached with sheet metal screws into the plastic.

You will need to get a screw package for a Saito 91 to attach the carb to the back plate

The last I looked, Horizon didn't have the correct screws

And to add to that debacle, the FG14 uses a smaller screw than the standard for Saito glow engines. I'm not absolutely sure what size the back plate is tapped to?

Jimmy Hoffa

My Feedback: (3)

Thanks for the info.
Phillip

mike early

ahh, a fiasco

Rudolph Hart

Jimmy i have two 82's that have run hard every weekend for two years as supplied if that helps.w8bye raises a good point about mounting any type of hardware such as exhaust systems,fuel mounting points etc,on a suck it and see basis.I make my own ally brackets and drill the base plate plus sika-flex which is stronger bond wise than silicone,nice anti vibration pads.

Jimmy Hoffa

My Feedback: (3)

I'm not sure what that means.
Phillip

Rudolph Hart

I meant that you drill a few small holes in the base of the bracket where it meets the firewall or whatever.Thoroughly clean both mating surfaces and then sikaflex it on.Does'nt need much sika and you can watch it squeeze through the holes.Never had one fall off yet,good luck.

w8ye

My Feedback: (16)

I just looked at the Saito 82B parts list and they list the Saito 91 carb bolt set as the one to use to fasten the carb to the new back plate.

FNQFLYER

Ok, I have been reading elsewhere about the problems people have been having with the FG20 cutting out etc and here is the "data and fix" that has been found to work with a degree of success here in OZ
1/ This is applicable to the older versions of the engine like mine (still NIB) bought at the end of last year but no doubt applicable to those engines exhibiting these problems, that is cutting out on take off and in the early stages of flight and difficulty in tuning
2/ The cutting out on take off.  It would appear as if this has been put down to valve stem clearence with the stems "grabbing" in the early phase of start up / running, in other words "when it is not properly warmed up"  Solution check and "adjust" the stem clearence or better still warm the engine up and don't do any radical manouvres (vertical take offs etc) in the early part of the flight. The stems 'wear in" over a period of time (varies with engine use) and this problem "goes away".  Of course you could get a new set of valves (if they are available) if you wish
3/ The tuning thing.  The needle screw (mixture) is to coarse, a bit of judicious filing to increase the taper appears to be the fix here.  Gives a finer range of adjustment.

All in all the basic advice I have been able to glean is to spend time runnning in the engine and learning their individual charastics and I believe this info will also work for the FG14 as well, but can't vouch for that.

I am about to start the bench running of my FG20 so I'll report back further as things develop  

w8ye

My Feedback: (16)

I've also had the exhaust valve stem problem on my FG36

mike early

Ah! problem solved!

FNQFLYER

Noted on the FG36 re valves. Guess what I have one of them also that is scheduled to go into an ESM Swordfish anything else I should know about that engine.
With regards to the FG20 problem I have found with all the Saitos I have owned that I have had little trouble with them when I follow the factory recommended run in and handling procedures. Varied from the true path once and lunched a $1000.00 (AUD of course) competition model. Te only thing that survived (sort of) was the Saito 65 and that was reduced to spares for other engines. Fortunately it wasn't my rig and I was short cutting at the request of the owner who accepted the responsibility for the eventual outcome.

Jimmy Hoffa

My Feedback: (3)

Mike,
Thanks for verifying the correct bolts.

Phillip

mike early

ORIGINAL: haha, w8ye is the real hero here!

[email protected]

Hi my name is Bob and I currently have two Saito engines, love them both, I have a 56GK and a 72 . I am looking for some advice , I want to get another engine and am looking at a Saito 65 , is this close to the 72 , is it a good engine I dont believe they make this model any more . Can anyone help me thanks Bob A

w8ye

My Feedback: (16)

The Saito 65 is larger externally and heavier than the Saito 72.

It is a good engine that will last you a long time but is not as powerful as the 72.

The 65, 80, 91, and 110 all have the same ounding bolt pattern

The 56, 62, 72, and 82 have the same mounting bolt pattern but the two bigger engines have a slightly wider crankcase

The 100 and 125 have the same mounting bolt pattern

rcdude7

My Feedback: (264)

The .65 is a good solid engine, it shares parts with the .80 and .91 because they are all of the same family. If you find a deal on one, buy it. I think the .65 and .80 are no longer available new, and the .91 will probably be discontinued next.

w8ye

My Feedback: (16)

It would be neat to have a Saito 92 with the 125 cylinder and the stroke of a 72

NM2K

My Feedback: (14)

Hmmm...

Kind of reminds me of the April Fool's article of Hot Rod Magazine some decades ago and the article about the revolutionary and new Zero-Stroke engine. Remember that one?

I wonder if what you have suggested is actually possible?


Ed Cregger


*** "Heeeeeeere, fishy, fishy, fishy!!!!! ***

w8ye

My Feedback: (16)

Add it up. If you need a slightly short stroke, figure it with the 82 crank.

You would get all the breathing ability of that big bore and the stroke would be short enough to have a Saito 50 mounting bolt pattern

w8ye

My Feedback: (16)

Add it up. If you need a slightly short stroke, figure it with the 82 crank.

You would get all the breathing ability of that big bore and the stroke would be short enough to have a Saito 50 mounting bolt pattern

mike early

What would you consider as the advantage of such a engine?

w8ye

My Feedback: (16)

This 92 engine would go along with the 62, 72, 82, and 110 engines with a bigger cylinder on a smaller crankcase.

The power of the 82 has just about done away with the need for the 91.

gwoodward

I have a saito 100. I just replaced the crankshaft and was careful to set the cam timing. The engine lacks power. I have it on a ultrastick 60. I have had to go to a 13/6 prop. I haven't measured the rpm, but the engine doesn't have that sweet pitch. Could the cam timing be set wrong?
Thank you
Glenn