Dennis,
When I replaced the front bearing, retainer, and seal on my RD1A, I drilled holes in the retainer being careful not to drill into the shaft. Then the retainer was stretched by driving a chisel into the
line of holes. The retainer was then easy to remove. The result is shown in the attached photo.
The replacement retainer was purchased from Mark Williams Enterprises in Colorado,
1-866-508-6394. I asked for only the retaining ring shown in the following link, part # 58505R.
http://www.markwilliams.com/detail.aspx?ID=808
Steve Boese
RV6A, 1986 13B NA, RD1A, EC2
From: Rotary motors in aircraft <flyrotary@lancaironline.net> on behalf of Dennis Havarlah <flyrotary@lancaironline.net>
Sent: Sunday, June 01, 2014 9:39 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] RD1 - C Questions
Tracy,
I hope you are doing well. I'm sorry I could not attend the fly-in at Charlie England's. I really wanted to be there with all the guys!
When running my Renesis powered RV -7A on the ground at idle (1600 rpm) I noticed a random tick noise in the front bearing area of the RD1 - C When prop rpm was increased to 2000 rpm the noise went away. I removed the prop output
shaft and had several mechanics inspect the bearing and none thought it was bad. I have purchased a replacement bearing (MRC #209SZZ) and still want to replace the bearing. The bearing has a bearing retainer ring (part # 58505 R) pressed on the shaft against
the bearing. The machine shop wants to heat the 58505 R retainer and press it and the old bearing off - then reuse the bearing retainer with the new bearing - is this OK or should I get a new retainer? If I need a new retainer who supplies them?
My prop gear lash has increased from about 3/8 in. when new to about 5/8 in with 600 hrs. of run time. After disassembly of the RD1- C it appears the input shaft spline has a very small amount of play between it and the flex
plate spline. Is this any problem? No noticeable play was found in the planetary gear system.
Thanks,
Dennis Haverlah