Mark,
As an information point the the early 89 model13B (up to a certain vin number ) used the 86-88 pump
before going to the later pump used through 91..............If you already have Richards adapter make sure
it will bolt to your front cover...............<:)
Kelly
On Sun, Apr 8, 2012 at 8:56 AM, Richard Sohn <res12@fairpoint.net> wrote:
Mark, this pump uses an o-ring. It is the same o-ring on the pump and the adapter. I have some laying around. Let me know if you need them, and I will put two in an envelope.
Need a mailing address on my private email.
Sent: Sunday, April 08, 2012 8:40 AM
Subject: [FlyRotary] Re: OMP Plumbing
Kelly,
Wouldn't you know, I found my 13b front cover. As they say, "If it had been a snake, it would have bit me." So, you can keep the one you have (maybe make a clock out of it). It is off an '89 6-port engine. The pump I have is off the same engine, so everything fits. Anybody know where I can get a gasket to fit this pump?
Mark
On Sat, Apr 7, 2012 at 10:30 PM, Kelly Troyer <keltro@gmail.com> wrote:
Mark,
Do you have a 86-88 or 89-91 metering pump ?.............I have both covers but Richard's adapters are different
for these model years.............
Kelly
Richard,
Thanks for the great information. That supports what instinct was telling me. So, anywhere upstream of the butterfly should work? I'm running three 1-barrel throttle-bodies on my p-port 3-rotor. If I understand you, I should hook the check valve for each rotor upstream of the respective TB butterfly, correct?
Mark
Mark,
you need the injection check valves hooked up to your intake plenum. The oil intake only works with the pressure difference between the combustion chamber and the plenum during the intake cycle. The check valve prevents oil from being pushed into the vacuum lines by reverse pressure fluctuations.
As far as the control lever is concerned, you have a good plan. You may want to make the lever position adjustable so you can set the oil consumption to a level that makes you and the engine feel good.
FWIW
Sent: Saturday, April 07, 2012 8:10 PM
Subject: [FlyRotary] OMP Plumbing
Is anyone running an oil metering pump (OMP) that can help me figure out how the lines should be connected. I'm planning on using the Mazda banjo fittings to hook up to the OMP, but what do I do with the check valves. Do you connect the check valves to a vacuum source or just block them off? Will the system work properly if I plug the check valves? I plan on locking the lever in the full open position. Will this work for a/c use? I'll be using Richard Sohn's adapter with a 1 gallon reservoir filled with 2-stroke oil.
Mark S.
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