Oil circulation procedure

[Terry.C.]

Ok Volker I'll give it a try,
regards
T

[nevhunter]

I've re read the entire Post. Remove Pump and with an oilcan Make sure OIL will return to the tank. Are you SURE the Oil Pipes are Not reversed? Nev

[Terry.C.]

Well Guy's still no succes with the oil problem.
Here's what I've done Replaced the missing washer on the take off tube inside the cam cover. I put in two for good measure. Disconnected the feed pipes into the oil pump feeds. Connected a plastic pipe onto the return feed inside the sump cover. Placed it in a jug of oil and kicked the bike over for a long time. No oil seems to be sucking up into the return at all. removed the pump and checked it over and it sucks the plungers ok when I close the feed holes with my finger. Should the pump be drawing oil up from the jug when I kick it over and if so how long should it take to draw up?
This driving me up the wall.
Regards
T

[Terry.C.]

High Nev ,
I have asked that question but not had any response to it. I am not sure if the connections are right or not.
At the moment the rear connection (return) on the tank goes to the bottom of the pickup connection on th pump casing and the other front one (supply) goes to the the top connection on the pump case. Is this right?

[Simon.Gardiner]

It's connected the correct way (lower union on timing cover is the return) - and it should start picking up within a few kicks.
Do as Nev suggests and check that there's no blockage between the timing chest and the oil tank. (I'd be surprised if this stopped the pump shifting something up the return pipe as an indication of some pumping, but good to rule it out.)
The pump seems OK - I do a similar 'suck' test with mine.
With the pump in place and the plastic pipe on the sump- pick-up pipe, see if you can suck air through. If you suck hard and put your tongue over the end of the plastic tube (while still sucking) you should be able to feel if it's maintaining a vacuum in the pipe with your tongue.
There have been cases where the pick-up pipe has loosened in the crankcase (happened to me), or if you're really unlucky there might be a crack in the pipe.

Hope that helps

SG

[Terry.C.]

Hi Simon,
Thanks for the reply. With the plastic pipe feeding the return in the sump should I be able to see if oil is being sucked up through the pipe. How long should it take to see oil doing the full circuit ie \into tank and rocker box feed? I seem to be kicking and kicking with no real results.
Regards
T

[Mick D]

Hi

If it were me I'd attach a clear plastic tube to the oil pick up pipe and put the open end in a reservoir of oil. Kicking the bike should see the oil rise up the plastic pipe, if it doesn't you need to investigate.

The pump might need priming, Inject oil up the plastic pipe, or raise the reservoir to the same effect.
The system could be blocked close to the pump on the outlet or inlet side, blowing up the tube will give an indication of a blockage if it doesn't pass air when the kick start is actuated.
If the pipe passes air but does not suck oil up the pipe you have an air leak preventing the pump from priming at kick start speed.

Good Luck Mick

[Pete.Silson]

Terry,

Undo the lower oil pipe on the back of the timing cover, this is only about an inch from the pump return outlet and will show oil first. You should see oil being sucked up the plastic tube at about an inch per pump stroke (two revolutions of the engine) and appearing out of this fitting after 5-6 kicks. If the oil doesn't go up the plastic pipe or stops part way up then there is a leak between the sump and the pump. If you use a narrow glass container of oil to dip the plastic tube, you will see the level quickly drop as you kick.

Personally I wouldn't be too worried about starting the engine for a short time especially if you lubricated all the moving parts on assembly and poured a good dollop of oil into the rocker boxes. Did a large amount of oil drop out when you removed the sump plate? If so that suggests that your oil feed side is working fine and the everything (apart from the rocker arms) is being lubricated.

Best of Luck, Pete

[volker.halbach]

Just to exclude a simple problem: You said that the plunger in the oil pump creates a vacuum when you pull it out. But that doesn't rule out that something is wrong with the ball valve in the pump. Paul has described the test procedure above.

If you remove the outer timing cover and find a leak between in the intake of the pick-up pipe and the small stub on which the small washer goes goes, then you need access to the pick-up pipe in the crankcase, I am afraid.

[Terry.C.]

Hi Guy's.
I have done practically all the solutions suggested. At the moment the take off tube in the sump is connected to a plastic pipe and laying in a glass jar full of oil. I have kikcked the bike over about a 100 times but no joy. The oil does not come up the pipe or get any less in the jar. It would appear that something is amiss in the copper pick up pipe so an engine strip down is in the future.
Many thanks for all your help,
I will report back at a later date but not sure when.
Regards
Terry