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The 45 MKII is the only 45 I've seen. They were rather common in the USA/Canada. Horizon never carried the 45S. The 45 MKI & MKII were sold by Indy RC before Horizon bought them.
The main differences beside bore and stroke with current available parts is that the back plate and carb body are designed different. The other difference is the camshaft/cam cover, pushrods & tubes.
The main differences beside bore and stroke with current available parts is that the back plate and carb body are designed different. The other difference is the camshaft/cam cover, pushrods & tubes.
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ORIGINAL: w8ye
The 45 MKII is the only 45 I've seen. They were rather common in the USA/Canada. Horizon never carried the 45S. The 45 MKI & MKII were sold by Indy RC before Horizon bought them.
The main differences beside bore and stroke with current available parts is that the back plate and carb body are designed different. The other difference is the camshaft/cam cover, pushrods & tubes.
The 45 MKII is the only 45 I've seen. They were rather common in the USA/Canada. Horizon never carried the 45S. The 45 MKI & MKII were sold by Indy RC before Horizon bought them.
The main differences beside bore and stroke with current available parts is that the back plate and carb body are designed different. The other difference is the camshaft/cam cover, pushrods & tubes.
Whilst both have different gasket sets, only the intake tube and pushrod area really differed (at least enough that I could tell).
I'm about to pull the 45S and swap it for the 45MkII. I may take some side by side pics to post here.
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ORIGINAL: w8ye
Please post some pictures for the record
Please post some pictures for the record

My Feedback: (16)

These pictures are of Hobbsy's engines These pictures are all from this thread.
45MKII on left and 40 on the right
[img]{akamaiimageforum}/Upfiles/22623/Wu60376.jpg[/img]
[img]{akamaiimageforum}/Upfiles/22623/Om31956.jpg[/img]
[img]{akamaiimageforum}/Upfiles/22623/Zu66347.jpg[/img]
45MKII Graupner 12 X 5 @9500
[img]{akamaiimageforum}/upfiles/22623/In26912.jpg[/img]
Last production 45S from Europe 2006 As you can see it looks much like the current Saito 56
[img]{akamaiimageforum}/upfiles/290563/Jh27039.jpg[/img]
45MKII on left and 40 on the right
[img]{akamaiimageforum}/Upfiles/22623/Wu60376.jpg[/img]
[img]{akamaiimageforum}/Upfiles/22623/Om31956.jpg[/img]
[img]{akamaiimageforum}/Upfiles/22623/Zu66347.jpg[/img]
45MKII Graupner 12 X 5 @9500
[img]{akamaiimageforum}/upfiles/22623/In26912.jpg[/img]
Last production 45S from Europe 2006 As you can see it looks much like the current Saito 56
[img]{akamaiimageforum}/upfiles/290563/Jh27039.jpg[/img]

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ORIGINAL: N1EDM
Winglift, I might be out of line here but you said that the top of your tank is now level with the carb. I was always under the impression that the centerline should be even with the carb (i.e., spraybar) or 1/4'' below.
Can someone set me straight on that? Is it different for 4S engines than it is for 2S?
Or is the tank now set that low to prevent siphoning?
Bob
Winglift, I might be out of line here but you said that the top of your tank is now level with the carb. I was always under the impression that the centerline should be even with the carb (i.e., spraybar) or 1/4'' below.
Can someone set me straight on that? Is it different for 4S engines than it is for 2S?
Or is the tank now set that low to prevent siphoning?
Bob

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Does anyone have a method of indexing the cam and crankshaft on the Saito 100 when reassembling? Photos? I can set the dot at 6 oclock on the cam, but not sure if it stays there when lowering it into the case. The same for the crankshaft which needs to be at 12 oclock, not sure if it stays in position when assembling the cam.
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Look back in the thread, there is a hole in the cam that you can put a drill with a bit of plastic pushrod around it in one of the follower holes and that will hold it in time as you put it in the engine. Still need the crank at TDC.
L.
L.

My Feedback: (16)

ORIGINAL: winglift
Does anyone have a method of indexing the cam and crankshaft on the Saito 100 when reassembling? Photos? I can set the dot at 6 oclock on the cam, but not sure if it stays there when lowering it into the case. The same for the crankshaft which needs to be at 12 oclock, not sure if it stays in position when assembling the cam.
Does anyone have a method of indexing the cam and crankshaft on the Saito 100 when reassembling? Photos? I can set the dot at 6 oclock on the cam, but not sure if it stays there when lowering it into the case. The same for the crankshaft which needs to be at 12 oclock, not sure if it stays in position when assembling the cam.

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ORIGINAL: Cherokee Flyer
Look back in the thread, there is a hole in the cam that you can put a drill with a bit of plastic pushrod around it in one of the follower holes and that will hold it in time as you put it in the engine. Still need the crank at TDC.
L.
Look back in the thread, there is a hole in the cam that you can put a drill with a bit of plastic pushrod around it in one of the follower holes and that will hold it in time as you put it in the engine. Still need the crank at TDC.
L.
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ORIGINAL: mk1spitfire
BLING...!!!
ORIGINAL: davidgeorge212
well here it is. One picture is all I have so far.
well here it is. One picture is all I have so far.
No Kidding!!
I would have to hang that from my neck on a thick gold chain and wear it to the field on sunday. I would be the Flavor Flav of the flying club [8D].

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ORIGINAL: w8ye
You can just use the small end of a pushrod
ORIGINAL: winglift
Does anyone have a method of indexing the cam and crankshaft on the Saito 100 when reassembling? Photos? I can set the dot at 6 oclock on the cam, but not sure if it stays there when lowering it into the case. The same for the crankshaft which needs to be at 12 oclock, not sure if it stays in position when assembling the cam.
Does anyone have a method of indexing the cam and crankshaft on the Saito 100 when reassembling? Photos? I can set the dot at 6 oclock on the cam, but not sure if it stays there when lowering it into the case. The same for the crankshaft which needs to be at 12 oclock, not sure if it stays in position when assembling the cam.
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Hi Bill, I would like to get a copy of the material you mentioned here. I just picked up a 100 FA, sold for parts as it was crashed, that looks complete and fixable. The pushrods are bent and the high speed needle bent as well.
I also have a 120 in a Tiger Moth that will need the bearings replaced. The two 45s are still OK. So any information that you could provide on the correct process to pull the crank and assembly would be greatly appreaciated. Thanks in advance. Gerry [email protected]
I also have a 120 in a Tiger Moth that will need the bearings replaced. The two 45s are still OK. So any information that you could provide on the correct process to pull the crank and assembly would be greatly appreaciated. Thanks in advance. Gerry [email protected]
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ORIGINAL: rcdude7
No Kidding!!
I would have to hang that from my neck on a thick gold chain and wear it to the field on sunday. I would be the Flavor Flav of the flying club [8D].
ORIGINAL: mk1spitfire
BLING...!!!
ORIGINAL: davidgeorge212
well here it is. One picture is all I have so far.
well here it is. One picture is all I have so far.
No Kidding!!
I would have to hang that from my neck on a thick gold chain and wear it to the field on sunday. I would be the Flavor Flav of the flying club [8D].


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ORIGINAL: w8ye
You can just use the small end of a pushrod
ORIGINAL: winglift
Does anyone have a method of indexing the cam and crankshaft on the Saito 100 when reassembling? Photos? I can set the dot at 6 oclock on the cam, but not sure if it stays there when lowering it into the case. The same for the crankshaft which needs to be at 12 oclock, not sure if it stays in position when assembling the cam.
Does anyone have a method of indexing the cam and crankshaft on the Saito 100 when reassembling? Photos? I can set the dot at 6 oclock on the cam, but not sure if it stays there when lowering it into the case. The same for the crankshaft which needs to be at 12 oclock, not sure if it stays in position when assembling the cam.

Others have posted that an exacto blade or a piece of plastic (credit card) could be used to hold the cam gear in position as the cam cover is lowered onto the crankcase. I can see that a credit card with a U channel that bridges opposite cam gear teeth would hold them and then be pulled out after mesh is made.
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Ok I know this might be a silly question, I currently am running a OS 55ax 2 stroke in a gp Cap 580, I am awaiting a 5 year old saito 80 gk that I picked up used, Is this engine more powerfull than my 55? On the websites the 55 is rated at 1.7hp @ 16000, The saito is rated @ 1.3? Would someone mind explaining?