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Search: Posts Made By: blw
Showing results 1 to 25 of 25
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Forum: Glow Engines
05-11-2007, 09:57 PM
Replies: 24
Views: 66,084
Posted By blw

RE: The Complete Saito Notes by Bill Robison

Piston rings, rocker pivots, valve springs, and Loctite.

The rocker pivots are often pretty tight. I have a special screwdriver I ground just for them. If you have a micro torch warming the...
Forum: Glow Engines
05-11-2007, 09:56 PM
Replies: 24
Views: 66,084
Posted By blw

RE: The Complete Saito Notes by Bill Robison

Bearing cage orientation

It's not a stupid question, and I'm sure there's a difference. But I have no idea what the difference is. I generally install the rear bearing with the flat side of the...
Forum: Glow Engines
05-11-2007, 09:53 PM
Replies: 24
Views: 66,084
Posted By blw

RE: The Complete Saito Notes by Bill Robison

Cam box gasket

I have checked several new gaskets, for both the old and new pattern cam boxes. They have all measured within a few tenths of 0.0075” thick.

General engine lubrication

...
Forum: Glow Engines
05-11-2007, 09:51 PM
Replies: 24
Views: 66,084
Posted By blw

RE: The Complete Saito Notes by Bill Robison

Poor idle

The three biggest reasons for not being able to get a good idle are an intake air leak, the tank is too low, or three, the engine just doesn't have enough running time to idle well;
...
Forum: Glow Engines
05-11-2007, 09:49 PM
Replies: 24
Views: 66,084
Posted By blw

RE: The Complete Saito Notes by Bill Robison

Perry VP-30 pump

There are two basic versions of the Perry pump, the VP-20 “Shaker” pump operated by engine vibration and the VP-30 which uses pressure pulses from the crank case to operate....
Forum: Glow Engines
05-11-2007, 09:48 PM
Replies: 24
Views: 66,084
Posted By blw

RE: The Complete Saito Notes by Bill Robison

Fuel tank vertical location

The tank center should be level or slightly below the center POINT of the carb. This holds for mounting at any angle. The center point of the carb is the reference....
Forum: Glow Engines
05-11-2007, 09:47 PM
Replies: 24
Views: 66,084
Posted By blw

RE: The Complete Saito Notes by Bill Robison

(Continuation of discussion on the 300TTDP)
My choice for the glow plugs is the OS “F” plug in the rear holes, K&B 1L plugs in front. The new “Saito” plug from Horizon seems to work as well...
Forum: Glow Engines
05-11-2007, 09:46 PM
Replies: 24
Views: 66,084
Posted By blw

RE: The Complete Saito Notes by Bill Robison

300TTDP

Adjustment/operation of the Saito FA-300TTDP engine.

Preparation:

Before we talk about settings, let’s check the installation. Set properly, this engine can suck three...
Forum: Glow Engines
05-11-2007, 09:45 PM
Replies: 24
Views: 66,084
Posted By blw

RE: The Complete Saito Notes by Bill Robison

Quieting ramps again

As near as I can tell, the later engines all have the quieting ramps. If your FA-100 has an early code date it may not.

I suspect the late engines I've found without...
Forum: Glow Engines
05-11-2007, 09:43 PM
Replies: 24
Views: 66,084
Posted By blw

RE: The Complete Saito Notes by Bill Robison

Old and new cams

"...this engine has not been run in ten years." This could mean the engine was new ten years ago, or it could have been an older engine even then. The point here is that it...
Forum: Glow Engines
05-11-2007, 09:41 PM
Replies: 24
Views: 66,084
Posted By blw

RE: The Complete Saito Notes by Bill Robison

Valve adjust – old cams only

The way you're doing it is OK, but as W8YE said you should bring the piston up to TDC before checking/adjusting. When you feel the engine hitting compression, keep...
Forum: Glow Engines
05-11-2007, 09:40 PM
Replies: 24
Views: 66,084
Posted By blw

RE: The Complete Saito Notes by Bill Robison

Oily engine

A Saito run inverted tends to collect a lot of oil in the rocker boxes, but it sounds like you're getting a lot more than should be expected.

The ring is a possibility, but...
Forum: Glow Engines
05-11-2007, 09:39 PM
Replies: 24
Views: 66,084
Posted By blw

RE: The Complete Saito Notes by Bill Robison

Cam grind

The FA-72 was the first of the mid block Saito engines to get the really hot valve timing. In the big block it was the FA-120S about 1997-1998.

With these hot cams the idle is...
Forum: Glow Engines
05-11-2007, 09:37 PM
Replies: 24
Views: 66,084
Posted By blw

RE: The Complete Saito Notes by Bill Robison

Carb adjustment

The flush initial setting of the LS needle was with the metal throttle lever. With the later plastic lever the flat of the LS adjuster is roughly 1/16" down at the factory...
Forum: Glow Engines
05-11-2007, 09:34 PM
Replies: 24
Views: 66,084
Posted By blw

RE: The Complete Saito Notes by Bill Robison

PCV and normal venting

First, some back ground. The Japanese have much tighter emission controls on engines, and they are influencing some Japanese manufacturers of model engines. In this...
Forum: Glow Engines
05-11-2007, 09:32 PM
Replies: 24
Views: 66,084
Posted By blw

RE: The Complete Saito Notes by Bill Robison

Lean run, or overheating?

The most definite test for lean mixture in a particular installation is to peak the engine rpm with the HS needle, open it to get your 300-400 rpm rich drop, then with...
Forum: Glow Engines
05-11-2007, 09:31 PM
Replies: 24
Views: 66,084
Posted By blw

RE: The Complete Saito Notes by Bill Robison

Tuning with Tach and AR Oil

What a tach does for tuning a four stroke is force you to wait for the engine's reaction. If you go slow, give the engine time to respond to a needle change, your ear...
Forum: Glow Engines
05-11-2007, 09:29 PM
Replies: 24
Views: 66,084
Posted By blw

RE: The Complete Saito Notes by Bill Robison

Sealing the intake stack – tubing

You will select a tubing diameter that will fit into the recess where the Teflon seal was fitted for the choke plate, and cut it to length to be a snug fit...
Forum: Glow Engines
05-11-2007, 09:28 PM
Replies: 24
Views: 66,084
Posted By blw

RE: The Complete Saito Notes by Bill Robison

More on intake stacks and air filters
The intake stack for your FA-82 is the same one that fits from the FA-56 up to the FA-100 - all the mid block engines use the same one. About $6 -$7 from Tower....
Forum: Glow Engines
05-11-2007, 09:27 PM
Replies: 24
Views: 66,084
Posted By blw

RE: The Complete Saito Notes by Bill Robison

Cam wear

The engine’s power is enhanced by the maximum open duration, meaning the least valve clearance we can use. This can affect the idle, but normally the effect is minor at most.
...
Forum: Glow Engines
05-11-2007, 09:26 PM
Replies: 24
Views: 66,084
Posted By blw

RE: The Complete Saito Notes by Bill Robison

Bearings – general notes:

Any bearing has to have some clearance for its lubrication – plain, roller whether tapered or straight, needle, and ball bearings as well. Without clearance...
Forum: Glow Engines
05-11-2007, 09:25 PM
Replies: 24
Views: 66,084
Posted By blw

RE: The Complete Saito Notes by Bill Robison

After run oil – why use it?

As the engine runs acids are formed in the combustion process. Most of the acids are blown out the exhaust, but some also blow by the piston along with the oil for...
Forum: Glow Engines
05-11-2007, 09:24 PM
Replies: 24
Views: 66,084
Posted By blw

RE: The Complete Saito Notes by Bill Robison

AAC life

Is there a longevity issue with the aluminum bores?

In a word, no.

There are many ways to make an engine cylinder, the old classic is an iron block with a ringed piston. Works...
Forum: Glow Engines
05-11-2007, 09:23 PM
Replies: 24
Views: 66,084
Posted By blw

RE: The Complete Saito Notes by Bill Robison

AAC/ABC again, early 120S

Positive identification of the various big block engines can be a little difficult, but I think what you got is the latest version of the FA-120. If it's a white box...
Forum: Glow Engines
05-11-2007, 09:21 PM
Replies: 24
Views: 66,084
Posted By blw

The Complete Saito Notes by Bill Robison

General disjointed notes and comments on Saito engines.
William L. Robison, The Airplane Company. Mary Esther, Florida, USA
Copyright 2001-2006

Feel free to pass this on to anyone who is...
Showing results 1 to 25 of 25


 
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