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Old 12-09-2011, 05:40 PM
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Default priming oil pump

hey folks,

bike is finally done....1991 FXSTS

before i start her i know i need to prime the oil pump... any suggestions?

i know i need to pull the screen and ball and fill with oil until it requires no more, but is that it?....should i fill the oil tank, as well?....do i turn the engine over each time i pour oil in the pump?

any help would be greatly appreciated!

paul
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Old 12-09-2011, 10:37 PM
mkguitar mkguitar is offline
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My rebuilt motor had assembly lube in it where bearings, pistons, cam and lifters were all new.

I put oil in the tank ( FXRP, so oil tank under the seat), removed the spark plugs and manually turned over the motor until I could see that oil was being returned to the tank - this took awhile.

Then it fired right up, oil pressure was there right off the bat.

Mike
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Old 12-10-2011, 07:16 AM
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Fill the tank, remove the spring and check ball in the pump. The oil will eventually find it`s way through the pump, but it is quicker to pour some oil into the pump.
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Old 12-10-2011, 07:20 AM
feguy1 feguy1 is offline
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I always pull the spark plugs and spin motor over with the starter until gauge shows pressure. Then spin it some more to ensure filter and top end are primed, then fire it up.
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Old 12-10-2011, 08:03 AM
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man that some good info here never thought about it like this
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Old 12-10-2011, 10:12 AM
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very cool!...thanks

curious, what does removing the spark plugs do?....does it prevent cavitation and air from building in the pump because no compression is being created?
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Old 12-10-2011, 12:25 PM
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Pulling the plugs just lets the motor turn over faster/easier to get the oil circulating.
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Old 12-10-2011, 03:51 PM
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ah!....makes sense
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Old 12-10-2011, 04:04 PM
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yes, but I turn it over by hand ( spinning rear wheel)-

running the with the starter works great BUT if the ignition is hooked up, the spark plugs have to be grounded or the ignition system could be damaged.

I just like doing it by hand, kinda feeling for everything to smooth up as the oil flows

Mike
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Old 12-10-2011, 09:30 PM
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Quote:
Originally Posted by mkguitar View Post
yes, but I turn it over by hand ( spinning rear wheel)-

running the with the starter works great BUT if the ignition is hooked up, the spark plugs have to be grounded or the ignition system could be damaged.

I just like doing it by hand, kinda feeling for everything to smooth up as the oil flows

Mike
...this is a good point

would NOT want to damage that new Dynatek ignition system i have in there, either
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