Saito service in Canada - RCCanada - Canada Radio Controlled Hobby Forum
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Old 08-25-2016, 07:33 PM   #1
Dwayne1
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Saito service in Canada


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I have a Saito 90T and the cams keep running dry, I'm wondering if anyone does service in Canada or who can I get in touch with.
Thank you
Dwayne
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Old 08-25-2016, 09:11 PM   #2
floyd
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Re: Saito service in Canada

You might find someone in Canada who's willing to look at it but any Saito service will need to go back to Horizon in the states. How do you know the cams are running dry? I've never seen a Saito engine with no oil in the cam area when I've done bearings. Does any oil come out the oil vent while the engine is running? Cheers Floyd
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Old 08-25-2016, 09:13 PM   #3
Cougar429
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Re: Saito service in Canada

Has anyone worked on this engine? What fuel are you running?

Is the engine mounted with the cam case to the bottom, (have to ask)?

No experience with their twins, but from what I see on the singles the large main bearing allows oil to the cam and gears, (and from there to the valvetrain). If the wrong type is installed it may block flow.

Another problem can be with the case drain. If blocked or a line of too long or too small an ID is installed it can prevent good scavenge.

Just some ideas.
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Old 08-25-2016, 09:44 PM   #4
Dwayne1
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Re: Saito service in Canada

Thanks guys, yeah it's probably been played with quite a bit I only paid 75 bucks for it...lol I was flying one day when it started making a grinding noise someone suggested I look at the cams and sure enough bone dry, I sprayed some fuel in and all was well for a while but it's gone dry again. I'll get in touch with Horizon and see what they say.
Thanks
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Old 08-25-2016, 10:08 PM   #5
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Re: Saito service in Canada

Bearing swap...shield/seal not removed on rear bearing?

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Old 08-26-2016, 08:47 AM   #6
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Re: Saito service in Canada

The 90T is a twin cylinder engine with two carbs. I had a lot of trouble getting them set right. I used a tach and a laser temp checker. On many of the four stroke engines the cam followers are a real close fit this restricts the flow of oil to the camshaft and rocker arms. As a test I drilled a 1/16" hole in each rocker box cover and this allowed the oil to flow through past the cam shaft and to the rocker boxes.
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