Link 1
Stunt Hangar YouTube
P.A.M.P.A.
AMA
Balsa Density Calculator
This topic
This board
Entire forum
Google
Home
Help
Tags
Advertise
Login
Register
News:
---->Stunt News click here<----
April 26, 2024, 01:24:17 PM
1 Hour
1 Day
1 Week
1 Month
Forever
Login with username, password and session length
stunthanger.com
»
General control line discussion
»
Open Forum
(Moderators:
RandySmith
,
Steve Berry
) »
Backplates for LA-40/46 -Bad-
« previous
next »
Print
Pages: [
1
]
Go Down
Author
Topic: Backplates for LA-40/46 -Bad- (Read 1658 times)
Curtis Shipp
Trade Count:
(
0
)
Commander
Posts: 143
AMA 753063 / Advanced Stunt Flyer Finally
Backplates for LA-40/46 -Bad-
«
on:
July 23, 2012, 11:55:14 AM »
I have just been informed of a problem with the last batch of backplates. If you have a backplate please check the crankshaft for clearance before using the backplate. If you need a new one contact me at m14m21 at bellsouth dot net One was installed and galled up.
Logged
Life is to short to be sour.
FLOYD CARTER
24 supporter
Trade Count:
(
0
)
Admiral
Posts: 4458
Re: Backplates for LA-40/46 -Bad-
«
Reply #1 on:
July 23, 2012, 03:50:29 PM »
I had that problem with 2 that I ordered. The fix was easy: just some sanding with 320 on a glass plate. Had to repeat a couple times to get what seemed like good crankshaft run-out. It really isn't worth the time and effort to return them.
Floyd
Logged
89 years, but still going (sort of)
AMA #796 SAM #188 LSF #020
Douglas Ames
2014 Supporters
Trade Count:
(
0
)
Admiral
Posts: 1299
Re: Backplates for LA-40/46 -Bad-
«
Reply #2 on:
July 23, 2012, 08:41:15 PM »
Keep in mind there is a
thrust washer
between the drive washer and crankcase. Double check to see if it's installed, especially if it's a 2nd hand engine.
Logged
AMA 656546
If you do a little bit every day it will get done, or you can do it tomorrow.
FLOYD CARTER
24 supporter
Trade Count:
(
0
)
Admiral
Posts: 4458
Re: Backplates for LA-40/46 -Bad-
«
Reply #3 on:
July 24, 2012, 02:37:07 PM »
Washer or no. If the crank rubs on the backplate, you will get poor runs and black goo coming out of the exhaust. The OS steel washer is mainly for those who use an electric starter (I don't)
Floyd
Logged
89 years, but still going (sort of)
AMA #796 SAM #188 LSF #020
Dick Pacini
24 supporter
Trade Count:
(
0
)
Admiral
Posts: 1629
Re: Backplates for LA-40/46 -Bad-
«
Reply #4 on:
July 24, 2012, 03:04:47 PM »
Curtis, what is the correct step dimension from the mounting ears to the pilot of the backplate? Perhaps we could measure our own prior to installing.
Logged
AMA 62221
Once, twice, three times a lady. Four times and she does it for a living. "You want me on that wall. You need me on that wall."
Curtis Shipp
Trade Count:
(
0
)
Commander
Posts: 143
AMA 753063 / Advanced Stunt Flyer Finally
Re: Backplates for LA-40/46 -Bad-
«
Reply #5 on:
July 24, 2012, 06:31:57 PM »
I only have about 25 backplates that are wrong out there. I will measure the distance and let you know. It looks as if the parting tool got changed and did not repeat. I will ship new ones to anybody who has problems.
Logged
Life is to short to be sour.
Advertise Here
Print
Pages: [
1
]
Go Up
« previous
next »
Tags:
stunthanger.com
»
General control line discussion
»
Open Forum
(Moderators:
RandySmith
,
Steve Berry
) »
Backplates for LA-40/46 -Bad-
Advertise Here