Patricia & Bradley Sievert wrote:

What type high temp epoxy should I use to hold the peripheral ports in
the rotor housing? What type devcon is used to fill the old unused side
ports? Thank you,Brad

Bulent Aliev wrote:

Thanks Paul, your drawings help a lot. R. Beat manual said that the
sleeves are threaded and installed with epoxy and o ring in the housing?
Also do you know what material is recommended?
Bulent

I don't think you need to thread them or O-ring them. I think the epoxy 
will be fine with the groves providing a mechanical lock. Once
you fill that cavity with epoxy there will be no coolant in there.

Paul

Here is the info on high temp epoxy.
Good old JB Weld will probably work fine as well.
This is the cold side of the engine.

Hunter GA (Gary) at MSXSCC wrote:

Paul wrote:
Do you have any recommendations for a high temp epoxy
that would work on an intake manifold. Hand lay up
over carved blue styrofoam.... possible low temp oven cure
after initial room temp cure.

Dear Paul Lamar

Yes,  I suggest EPON Resin 862 cured with a chemical compound called
diaminocyclohexane, a.k.a.  DCH or DCH-99.    Both are available in quart
and possibly pint quantities from Miller Stephenson Chemical Co. in Danbury,
CT.  1-800-992-2424. '

The mix ratio is 17 / 100 by weight, i.e.,  17 parts DCH  per 100 parts EPON
862.   Be accurate, use a digital scale if you have one.   If not, check out
http://www.balances.com/index.html  and shop for something with at least 1
gram accuracy.   I have this model here  -
http://www.balances.com/gs2001.html   or look at the Ohaus LS2000
http://www.balances.com/ls.html.

Word of caution, when you receive the resin. It most probably will be
crystallized - do not use it in that condition.   You know the drill.
Submerge the sealed can of resin in a bucket of hot tap water.  Replenish
the hot water from time to time to reheat it.  After about 2 hrs. or so, the
resin should be fully reconstituted to a liquid state.  Allow to cool to RT
before using.

DCH is a pretty powerful corrosive with a rather strong ammonia smell.
Keep it off of you, don't sniff the container and wear gloves.  It will have
a gel time in a 100 gram mass of about  50-60 minutes.   In a laminate it
will take longer.   Do not use it below 70F.  Preferably 75F.     After the
lay-up has cured a day or so, you can begin to post cure it.    Start out at
about 120F gradually increasing to 170F-180F over period of a couple hrs.
Finally, hold the temperature at 180F for 16 hrs.    Allow to cool slowly in
the oven.

The cured product will have a glass transition temperature between 300 and
330F.

Any questions, call me 1-800-832-3766

Gary

 
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