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Oil Pressure
Posted: Mon Mar 28, 2016 2:07 pm
Author: relisysxx
Just filled my 'refreshed' motor with 10w40, should the oil light go out when spun over on the starter with the plugs out? or would the engine need to be started?
Thank in advance.................Nick
Posted: Mon Mar 28, 2016 2:21 pm
Author: Z1parR
The oil light should go out after about 5 seconds of spinning over .
Posted: Mon Mar 28, 2016 2:28 pm
Author: relisysxx
Bugger!
Posted: Mon Mar 28, 2016 2:33 pm
Author: wilsonsjw11
Nick,
It may take quite a time for the oil light to go out.
What engine is it?
Regards
Steve
Posted: Mon Mar 28, 2016 3:03 pm
Author: relisysxx
Standard Z1B, motor stripped, cleaned, new rings, guides, seats etc.
Switch is working and the pump seemed to be okay when i put it in
.
Posted: Mon Mar 28, 2016 3:11 pm
Author: Pigford
If motor was stripped & drained of oil - can take a while spinning to get pressure up
Take the end gallery plug out - just above points/clutch casing. See if it spurts out when cranked
Remember, they only run at just under 3 psi
Posted: Mon Mar 28, 2016 3:27 pm
Author: relisysxx
Okay, tried that and not a drop came out
Posted: Mon Mar 28, 2016 3:42 pm
Author: weaver
Drop the oil and filter refit and try again
Posted: Mon Mar 28, 2016 4:13 pm
Author: PAULJAC47
Pour about a egg cup full of oil down the plug Piggy pointed out,give it half an hour and spin over with your thumb over the hole.
Posted: Mon Mar 28, 2016 4:16 pm
Author: wilsonsjw11
Nick,
Did you remember to fit the large diameter O ring inside the sump plate as this will not allow pressure to build.
Regards
Steve
Posted: Mon Mar 28, 2016 4:27 pm
Author: chrisu
and the one between the crankcase halves if you split the engine
Posted: Mon Mar 28, 2016 4:56 pm
Author: relisysxx
mmm! Had a look in the box I put the gasket set in and low and behold there is a 'spare' large 'o'ring
, looks like I'd better order up a sump gasket!
Posted: Mon Mar 28, 2016 5:05 pm
Author: wilsonsjw11
Nick,
You should be able to use the same gasket.
The said O ring = 91mm diameter.
Regards
Steve
Posted: Mon Mar 28, 2016 5:49 pm
Author: relisysxx
91mm internal, that's the one!
Re: Oil Pressure
Posted: Mon Apr 04, 2016 7:21 am
Author: johny brando
relisysxx wrote:Just filled my 'refreshed' motor with 10w40, should the oil light go out when spun over on the starter with the plugs out? or would the engine need to be started?
Thank in advance.................Nick
Just a thought Nick ! I know it looks possible now in fact probable that it,s the missing large sump O ring is the culprit (.... I'm not entirely convinced on this one, as I think it's likely permanently submerged, so in theory it shouldn't matter if it's not there -
"but" then why bother with an O ring if thats the case ! )..... So, just in case the issue pursist's & your pump is securely fixed ,operative & has all the correct inline O rings in place . Well, it may be worth a quick Butchers Hook at the Oil pressure switch plunger too (behind barrels - White Plastic lump with the wire coming off it ) ....could be jammed to ground & the plunger not free floating against it's spring ...causing the light to stay on. Or, maybe the wire itself some where along the way .... is going to ground . I think you can maybe also at the same time.... back fill - prime the oil pump here..... by decanting say a pint of oil down this then open hole but "possibly not" as the Oil filter is on route this is affectively after the pump! & the paper element may not allow oil past it without a small degree of .....reverse pressure being applied. In reality though it doe's not really need priming !!!!! this because the pump intake is permanently submerged in oil, so a vacuum should automatically occur when the pump rotates. Good luck & happy Hunting ....... Johny Brando