Welcome to Club SAITO !
07-22-2020, 12:20 PM
07-22-2020, 02:00 PM
My Feedback: (1)
07-23-2020, 04:00 AM
07-23-2020, 04:59 AM
mmmffhfhfmmffhh
oh man, so many, SO MANY!!!!
Now that I have a new cowl made for the Chipmunk, I can bust up the first one and see what I need to do to make the 91 muffler fit without tearing out too much cowl. The Magnum exhaust has a curved pipe that allowed the muffle to sit inside the cowl and an extension brought the fumes out the back of it.
Now that I think about it though, that engine ran fine on the ground, it quit in the air, so I am wondering if that setup with the exhaust was the reason it quit. Could it have back flowed up the cowl and the engine was sucking exhaust fumes?
07-23-2020, 05:06 AM
07-23-2020, 01:25 PM
My Feedback: (102)
Join Date: Dec 2001
Location: Colonial Beach, VA
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Thanks, I may check it's health tomorrow. You cannot turn the prop driver with your fingers.
PS, I hope it does do that, Clarence Lee says 7,800 for an 18 x 6 and 8,800 for a 16 x 8. I usually beat his numbers.
PS, I hope it does do that, Clarence Lee says 7,800 for an 18 x 6 and 8,800 for a 16 x 8. I usually beat his numbers.
Last edited by Hobbsy; 07-23-2020 at 01:42 PM.
07-23-2020, 02:24 PM
Dave, do you have any idea when Saito lowered the compression ratio on the 150's? I have one with "I" stamped on the lug and the compression is stronger than any engine I've overhauled. Super stiff finger chasing compression. Throwing props like crazy attempting to peak the engine.
I've read that only unmarked lugs and those marked "A" were HC 150's. Something is awry at the Circle K.
I've read that only unmarked lugs and those marked "A" were HC 150's. Something is awry at the Circle K.
Last edited by Glowgeek; 07-23-2020 at 02:26 PM.
07-23-2020, 02:54 PM
My Feedback: (1)
has any one seen a change in Horizon's site ?
I know Horizon's search engine was not the greatest. but now I think it's worse. I typed in "Saito" and I got a list of 2 engines, it would not take me to a page of listed Saito's .
has any one seen this new site ??
https://www.horizonhobby.com/
Jim
I know Horizon's search engine was not the greatest. but now I think it's worse. I typed in "Saito" and I got a list of 2 engines, it would not take me to a page of listed Saito's .
has any one seen this new site ??
https://www.horizonhobby.com/
Jim
07-24-2020, 03:36 AM
My Feedback: (102)
Join Date: Dec 2001
Location: Colonial Beach, VA
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https://www.horizonhobby.com/search?...=&lang=default
Jim, when those two come, hit enter again and they'll all come up, or save the link above to your fave's.
Lonnie, I have the very first 150 sold and it has 11.24 to 1 compression, it has no initial on the right lug, yours is probably 9.9 to 1, the 150 requires sneaking up on the peak one click at a time, separated by a couple of seconds. On one of those clicks it sag 50 rpm or so rpm and you'll know you're there. I nailed it, it is 9.9 to 1.
Jim, when those two come, hit enter again and they'll all come up, or save the link above to your fave's.
Lonnie, I have the very first 150 sold and it has 11.24 to 1 compression, it has no initial on the right lug, yours is probably 9.9 to 1, the 150 requires sneaking up on the peak one click at a time, separated by a couple of seconds. On one of those clicks it sag 50 rpm or so rpm and you'll know you're there. I nailed it, it is 9.9 to 1.
Last edited by Hobbsy; 07-24-2020 at 03:43 AM.
07-24-2020, 04:47 AM
Thanks Dave. Went down to the shop this morning and checked timing, all good. The hsn and lsn are out further than normal. 3-1/4 turns out on the hsn, lsn almost flush with the outside of the plastic arm. Put a new oring kit in the carb but no joy.
I think the spraybar oring may be leaking, it doesn't come with the oring kit, and it's very difficult to test for leaks. Would that explain why my settings have to be richer than normal for both the hsn and lsn? Lsn for sure, not certain about the hsn.
I think the spraybar oring may be leaking, it doesn't come with the oring kit, and it's very difficult to test for leaks. Would that explain why my settings have to be richer than normal for both the hsn and lsn? Lsn for sure, not certain about the hsn.
07-24-2020, 04:52 AM
Thanks Dave. Went down to the shop this morning and checked timing, all good. The hsn and lsn are out further than normal. 3-1/4 turns out on the hsn, lsn almost flush with the outside of the plastic arm. Put a new oring kit in the carb but no joy.
I think the spraybar oring may be leaking, it doesn't come with the oring kit, and it's very difficult to test for leaks. Would that explain why my settings have to be richer than normal for both the hsn and lsn? Lsn for sure, not certain about the hsn.
I think the spraybar oring may be leaking, it doesn't come with the oring kit, and it's very difficult to test for leaks. Would that explain why my settings have to be richer than normal for both the hsn and lsn? Lsn for sure, not certain about the hsn.
07-24-2020, 04:55 AM
My Feedback: (102)
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I feel foolish asking this, but is the slot facing straight up, Thanks Those O-rings couldn't leak enough to make a difference if they did leak. A way to check would be to lube the needle threads with a heavy oil, that would seal them long enough to test.
07-24-2020, 05:30 AM
Last edited by Glowgeek; 07-24-2020 at 05:33 AM.
