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Old 12-19-2014, 09:12 AM
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I guess I should be OK then.. guess I was thinking about my VW Passat.. throw time in that and it gets expensive within a matter of seconds..
Old 12-19-2014, 09:40 AM
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Originally Posted by Bill Lowen
I guess I should be OK then.. guess I was thinking about my VW Passat.. throw time in that and it gets expensive within a matter of seconds..
If the valve never opened, there is no possibility of impacting the piston. The only question is if the pushrod was binding when not seated properly, then there might be some damage to the valvetrain. But if it is moving smoothly after you re-seated the pushrod, then I would guess there is no damage in that area. (of course, I am just speculating since I have not seen or checked the engine myself. Just theorizing.)
Old 12-19-2014, 09:46 AM
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Your theory is correct.. everything moves nice and smooth..after reading what you guys said. I think I am going to be OK.. I will have my parts for the carb today, going to put that back together, have somebody at the club give it a look/see to make sure everything looks good visually and hopefully that will be that.
Old 12-19-2014, 10:15 AM
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thank you very much, Cougar, with your info and pic. very helpful to me. happy landings!
dbeeler
Old 12-19-2014, 10:24 AM
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Your rock Cougar!

Old 12-19-2014, 10:26 AM
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He He! Thanks guys. Back to working on the kitchen redo, so things in the build room set aside till the wife's happy.
Old 12-19-2014, 10:35 AM
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Once upon a time this guy had a wife. Then she left. and the man bought lots of airplane stuff, electronics, motorcycles and lived happily ever after. The End.

Last edited by Bill Lowen; 12-19-2014 at 10:39 AM.
Old 12-19-2014, 11:15 AM
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Originally Posted by spaceworm
Hobbsy, Merry Christmas to All of You and Yours and to All a Good Flight.



Sincerely, Richard
Thanks Richard, the same to you and hope to see you after the New year
Old 12-19-2014, 11:53 AM
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Originally Posted by Cougar429
He He! Thanks guys. Back to working on the kitchen redo, so things in the build room set aside till the wife's happy.
That could take a loooooong time!!!
Old 12-19-2014, 04:06 PM
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Originally Posted by hsukaria
Bill, if the exhaust pushrod was not seated right but still moving freely, then there should be no damage to the engine when you spun it with the starter. The cam gear will not jump off timing unless somebody took the engine apart and reassembled it wrong, or there is major damage to the cam gear.
I was going to say the same thing - with geared cam timing, it would have to bust a tooth to be able to jump position and change the valve timing. Or... if the gears are worn so much to allow it to slip. It would be a fair pig of an engine if that were the case

Now, if it was put back together incorrectly timed, that would be a whole other ball-game...

BJ
Old 12-19-2014, 04:09 PM
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Originally Posted by Cougar429
He He! Thanks guys. Back to working on the kitchen redo, so things in the build room set aside till the wife's happy.
I like the optimism!

BJ
Old 12-20-2014, 09:47 AM
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Question on a Saito 72 - I want to install a remote High End needle valve - can I just open up the valve attached to the carb to full open then put the remote needle valve before the gas in nipple on the carb? I wanted to make it simple without making any major changes.

Thanks

Keith
Old 12-20-2014, 10:02 AM
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For safety I did this to all my older 2-strokes with the installation of a remote needle kit, (made by Fox, OS and the stronger, alloy version from Evolution. Each kit was in the $10-15 range and OS made a carb plug to replace the stock HS needle assembly, (sometimes then mounted to the remote setup) for about $5. The plug fit a lot of different make of engines so must have been a standard size for many.

That plug would likely not work on the Saito as if memory serves the HS needle threads into a brass fitting that inserts from inside the barrel bore of the carb. You could do as described by opening the stock HS needle, (I would suspect only 1 turn rich would be required as you are working lean from there) and adjusting the mixture remotely. Just remember that 4-strokes react slower to mixture changes than 2-strokes and a remote needle may amplify this delay based on distance from the carb inlet.
Old 12-20-2014, 07:46 PM
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Cougar - that is what I did - put in the remote valve and turned the "stock" valve two turns rich. Once i get it up and running I will see how sensitive the Remote valve will be and adjust everything from there.

You are correct - on the Saito I couldn't just remove the brass fitting so I will try simple way and see how it works. If it is not good then I will just go back to stock needle valve.

Thanks

Keith
Old 12-23-2014, 08:53 AM
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Here's how Saito tackle a remote needle on the 100 and 200 Ti.
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Old 12-23-2014, 12:04 PM
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Interesting, VERY interesting. A while back i noted that sometimes when I clicky the link in the new post emails, it goes to an earlier page, well, just SO happened that today it took me to a page where they talked of all things, Remote needle.

http://www.rcuniverse.com/forum/glow...l#post11585114

Oh and there is a Cub with a 91 on it that looks like a GP ARF.
Old 12-25-2014, 04:47 AM
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Merry Christmas all you grown up kids, I hope you find a few Saitos under your tree.
Old 12-25-2014, 12:09 PM
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Figured it would not hurt to ask again here if anyone has these sitting around or info on changes.

Recently purchased a 65. Stated it had been serviced, but hopefully no other motors make it through their hands.

This is what I need:

Intake valve and keeper, (luckily no impact with piston)
Pushrod tube upper seals
Piston pin end retainers, (teflon buttons were both missing)
Rocker pivot pin
Complete gasket set
Prop 7mm retainer nut

Cam and lifters would be low on the list as there is low wear, but when going this far may be worth replacing.

Here's the really fun part. When dismantled I found the spacer between the cam and front bearing had been replaced with a nut. I fabbed one, but if anyone has that rather obscure piece let me know.

When looking through the parts listings I frequently found an entire set had to be purchased for just one piece. Hoping to avoid that.

NOTE: From the pic it may be seen the muffler and tube are one welded assembly. I'm assuming this is an early gen. Not sure if there have been changes to the pieces listed, but if anyone has info regarding specifics, it would be appreciated

Thanks and hope everyone enjoys their holidays.
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Old 12-26-2014, 02:51 PM
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Yep tha is an early Saito muffler just like the one I lost of my first 65. They are also similar to the 50 I have as well.
Old 12-26-2014, 04:57 PM
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Thanks, Hobbsy, and a Merry Christmas back to you, belatedly.

Ayup, I found a Saito .72b right under the tree from Mrs. Santa Clause. It's going in my H9 Cub.

Bob
Old 12-26-2014, 05:31 PM
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You're going to love the 72!
Old 12-26-2014, 06:36 PM
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Thanks Bob, you'll love the .72, our Christmas got postponed until New Years Eve. My wife has an acute upper respiratory infection and got sentenced to a week in bed and is on a 10 day high powered Z-pack.

Hey Barry belated Merry Christmas to you and your bride.
Old 12-27-2014, 05:35 AM
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Thanks for the kudos on the .72b. I'm going to break it in carefully on the stand before I fly it. It's going to replace a .56 in the H9 Cub. I had found that the .56 would fly the Cub nicely in light winds. I tried flying it on a windy day and it was not a good decision - hence the 'request' for the .72b.

Hobbsy, I'm sorry to hear about your wife. Tell her that we all wish her to Get Well Soon!!

Bob

Last edited by N1EDM; 12-27-2014 at 05:38 AM. Reason: spelling error
Old 12-27-2014, 06:51 AM
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Originally Posted by Hobbsy
Thanks Bob, you'll love the .72, our Christmas got postponed until New Years Eve. My wife has an acute upper respiratory infection and got sentenced to a week in bed and is on a 10 day high powered Z-pack.

Hey Barry belated Merry Christmas to you and your bride.
Hi Hobbsy, Sorry to hear of your wife's illness. Hope she gets well soon and I wish you both a Merry Christmas and a Happy New Year.

Sincerely, Richard
Old 12-27-2014, 07:18 AM
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Thanks Richard, maybe I'll see you soon.

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