You sure you got that keyway on the oil pump shaft? It's a tricky operation to get right, and not having it right could mean the pump is slipping on the shaft.
Marc Wiese
>
> From: "Wendell Voto" <jwvoto@itlnet.net>
> Date: 2005/03/29 Tue AM 05:12:38 GMT
> To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
> Subject: [FlyRotary] Re: Oil Flow
>
>
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>   Subject: [FlyRotary] Re: Oil Flow
>   Got (some) oil flow.
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>   Remove the pick-up tube and cleaned off Hylomar. Cut a new gasket out of some gasket stock I had lying around and installed pick-up tube without any sealant.
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>   Hooked up starter (plugs removed) and spun engine, no joy. Removed outlet hose and primed pump again. Got oil flow. Reconnected oil line and left it slightly loose and had oil pressure gauge sender out. Cranked engine, oil flowed out of pressure sender hole. Let engine set while bat recharged some. Tried again, no oil.
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>   Repeated priming and had oil flow, reconnected line and this time oil flow was good. Put oil pressure sender on and cranked engine, had oil flow. Let engine set several minutes, cranked again, had oil flow. Let set some more, no flow while cranking.
>
>   Racing beat catalog says to charge the oil line by cranking the engine without spark plugs installed as I did but got varying results, sometimes got oil pressure (couldn't measure it - use ohmmeter to see if sender saw any pressure) and some times I didn't. How fast does the engine have to go the get oil to suck up the pick-up tube quickly, or how long after starting the engine does oil pressure come up?
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>   Ready to try a first start of the engine if oil pressure could be counted on to come up.
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>   Perplexed as to why I get oil pressure sometimes and not every time I spin the engine.
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>   Wendell (with oil all over the place)
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>   I would add to the other comments that Hylomar should NEVER be used as a sealant.  It is great stuff but as a seal (O-ring type) preservative.  Also aids assembly by holding them in place as Ed said.
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>    Be careful using RTV as a selant in oil systems, especially down stream of oil filter.  Chuck Dunlop (and others) can explain why.  
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>   Tracy
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>
>     Couldn't get oil flow in the engine the other day when trying to fill oil
>     line to oil cooler and see if oil flowed to the filter. Had used gasket and
>     Halomar when assembling pick-up tube to engine, still no flow. Can't see why
>     it will not prime. Pulled oil line off and pumped oil into hole to prime the
>     pump since it had set for a long time since engine assembly; it spit out the
>     oil put in there showing that the pump would work but still didn't suck,
>     rather it does 'suck'.  Should I have used Ultragray instead of the Halomar?
>      Any suggestions?
>     Will put a 3/8" extender on pick-up tube after oil flow is confirmed with
>     stock set-up (using sandwich mount 1/2" thick like CC mount).
>     Wendell
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