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Yamabond, Hondabond or Threebond 1194 (all the same product) would work great for this application. It is used to seal gasketless motorcycles cases as well as any metal to metal surface where the temps are relatively low. From the Threebond Website:
ThreeBond 1194 is a semidrying liquid gasket whose major component is special synthetic rubber. After it is applied and dried, it will form a rubber-like elastic body. Since it excels in padding property, it shows a high sealing effect on bonded surfaces that have poor flatness and large clearance. In addition, it has excellent resistance to water, oil and gasoline.
| · |
High padding property
It shows an excellent sealing effect not only on normal bonded surfaces, but also on bonded surfaces with large clearance. |
| · |
Excellent resistance to vibration and impact
After applied and dried, it will form a rubber-like elastic body and exhibit excellent resistance to vibration and impact. |
| · |
Excellent resistance to high and low temperatures
It keeps stable rubber elasticity in a wide temperature range from -40°C to 150°C. |
| · |
Excellent resistance to water and oil |
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Effective in preventing leak from threaded portions | |
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Sealing of flange surfaces and threaded portions |
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Applicable to sealing of flange surfaces having large clearance |
Properties
| Item |
Unit |
Property |
Test method |
Remarks |
| Appearance |
- |
Gray |
3TS-201-02 |
|
| Viscosity |
Pa·s |
9.5 |
3TS-210-02 |
25°C/BH-type, No.5-20 rpm |
| Specific gravity |
- |
1.25 |
3TS-213-02 |
25°C |
| Heating residue |
% |
58.0 |
3TS-217-01 |
|
| Tack-free time |
min |
12 |
3TS-219-04 |
|
| Solvent |
- |
Xylene |
- |
| |
|
| * These data are not our quality assurance values, but representative values. |
Physical properties after curing
| Physical properties after curing |
|
| Item |
Unit |
Physical property after curing |
Test method |
| Tensile strength |
MPa |
0.12 |
3TS-320-01 |
| Elongation |
% |
900 - 1000 |
3TS-320-01 |
| Hardness |
A |
25 |
3TS-215-01 | |
|
| Note) Curing conditions: At 25°C for 2 weeks | |
Ken Powell%0D%0ABryant%2C Arkansas%0D%0A501-847-4721%0D%0A
From: bktrub@aol.com
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Tuesday, July 12, 2011 12:22:50 AM
Subject: [FlyRotary] Re: Fwd: RD-1B failure
Ask Tracy about using Hylomar as a sealant.
Brian Trubee
-----Original Message----- From: David Leonard <wdleonard@gmail.com> To: Rotary motors in aircraft <flyrotary@lancaironline.net> Sent: Mon, Jul 11, 2011 10:15 pm Subject: [FlyRotary] Re: Fwd: RD-1B failure
I tried to get into the gear box today, but ran into an impasse trying to get the bell housing off the adapter plate... I think I am done using RTV there. Will probably use a non-adhesive sealant - as long as Tracy says we don't need the adhesion from the RTV. I did find another issue. In addition to a likely fin failure inside the gear box, the flex plate is coming apart. I found a piece of it in my cowl and it is tearing in several places. Still seems to be tracking OK. You know, I wouldn't mind the weight penalty of using the manual flywheel. Would have to drill some holes to attach Tracy's torque plate, but it should otherwise be an improvement for idle and pulse dampening. But maybe gyroscopic loads would be unacceptably high? Maybe have to move and/or replace the starter. Will try to get some pictures tomorrow. -- David Leonard Turbo Rotary RV-6 N4VY http://N4VY.RotaryRoster.nethttp://RotaryRoster.net
On Mon, Jul 11, 2011 at 11:51 AM, Mark Steitle <msteitle@gmail.com> wrote:
Al,
My gearbox failure was approx. 1-1/2 years ago. I attributed the failure to a very rough running engine which was cured with a mod to the EC-2 and CAS. I was lucky that it happened on the ground. (Ed can keep his "King of Dead Stick Landings" plaque, thank you!)
If I am correct, Tracy installed a 3/8" pin in my input shaft. No failures since. I now have approx. 200 hours on the engine/gearbox.
Mark
On Mon, Jul 11, 2011 at 10:23 AM, David Leonard <wdleonard@gmail.com> wrote:
From: Al Gietzen <ALVentures@cox.net>Date: Mon, Jul 11, 2011 at 8:17 AM Subject: RD-1B failure To: Dave Leonard < wdleonard@gmail.com>
Hi; Dave,
I’m very thankful to hear that this occurred after landing.
I’ve been unable to post on the rotary engine list for months due to blocking by Cox. Perhaps you’d post this message on my behalf:
---The shear pin on the sun gear is the most likely candidate since it was sized for a normally aspirated 13B. After the failure on Marks 20B, I have changed the pin diameter
Tracy;
Doesn’t this suggest that all 20B and 13B turbo should be upgraded to the larger pin? When was the failure on Mark’s 20B?
Al
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