Hello Guest User,

Please feel free to have a look around the forum but be aware that as an unregistered guest you can't see all of it and you can't post.

To access these 'Registered Users Only' areas simply register and login.

Oil Pressure

Need help restoring, building, or finding then try here.

Moderators: KeithZ1R, chrisu, paul doran, Taffus

Post Reply
Message
Author
relisysxx
100Club
100Club
Posts: 125
Joined: 7th Feb 2010
Location: shropshire

Oil Pressure

#1 PostAuthor: relisysxx » Mon Mar 28, 2016 2:07 pm

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
Top
User avatar
Z1parR
Hardcore
Hardcore
Posts: 4901
Joined: 11th Oct 2009
Location: Chorley Lancs

#2 PostAuthor: Z1parR » Mon Mar 28, 2016 2:21 pm

The oil light should go out after about 5 seconds of spinning over .
0172 . Geoff Parr
Top
relisysxx
100Club
100Club
Posts: 125
Joined: 7th Feb 2010
Location: shropshire

#3 PostAuthor: relisysxx » Mon Mar 28, 2016 2:28 pm

Bugger!
Top
wilsonsjw11
Hardcore
Hardcore
Posts: 1317
Joined: 18th Jul 2008
Location: West Sussex/Central London

#4 PostAuthor: wilsonsjw11 » Mon Mar 28, 2016 2:33 pm

Nick,
It may take quite a time for the oil light to go out.
What engine is it?
Regards
Steve
Top
relisysxx
100Club
100Club
Posts: 125
Joined: 7th Feb 2010
Location: shropshire

#5 PostAuthor: relisysxx » Mon Mar 28, 2016 3:03 pm

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 :?? .
Top
User avatar
Pigford
Hardcore
Hardcore
Posts: 13314
Joined: 2nd Jan 2006
Location: North Dorset

#6 PostAuthor: Pigford » Mon Mar 28, 2016 3:11 pm

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 :wink:
And on the 7th day... Zeds were created!
Top
relisysxx
100Club
100Club
Posts: 125
Joined: 7th Feb 2010
Location: shropshire

#7 PostAuthor: relisysxx » Mon Mar 28, 2016 3:27 pm

Okay, tried that and not a drop came out :cry:
Top
weaver
Custard Cream
Custard Cream
Posts: 804
Joined: 15th Nov 2011
Location: merseyside

#8 PostAuthor: weaver » Mon Mar 28, 2016 3:42 pm

Drop the oil and filter refit and try again
Top
User avatar
PAULJAC47
Hardcore
Hardcore
Posts: 3266
Joined: 31st Aug 2008
Location: WOLVO WEST MIDS ENGLAND

#9 PostAuthor: PAULJAC47 » Mon Mar 28, 2016 4:13 pm

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.
PAULJAC47,,,,,"She may not look like much, but she's got it where it counts, kid."
-Han Solo

You can't polish a turd, but you can roll it in glitter

Salad is what real food eats.
Anon

PUM 673
Top
wilsonsjw11
Hardcore
Hardcore
Posts: 1317
Joined: 18th Jul 2008
Location: West Sussex/Central London

#10 PostAuthor: wilsonsjw11 » Mon Mar 28, 2016 4:16 pm

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
Top
User avatar
chrisu
Moderator
Posts: 4367
Joined: 3rd Sep 2005
Location: herts

#11 PostAuthor: chrisu » Mon Mar 28, 2016 4:27 pm

and the one between the crankcase halves if you split the engine
Top
relisysxx
100Club
100Club
Posts: 125
Joined: 7th Feb 2010
Location: shropshire

#12 PostAuthor: relisysxx » Mon Mar 28, 2016 4:56 pm

mmm! Had a look in the box I put the gasket set in and low and behold there is a 'spare' large 'o'ring :oops: , looks like I'd better order up a sump gasket!
Top
wilsonsjw11
Hardcore
Hardcore
Posts: 1317
Joined: 18th Jul 2008
Location: West Sussex/Central London

#13 PostAuthor: wilsonsjw11 » Mon Mar 28, 2016 5:05 pm

Nick,
You should be able to use the same gasket.
The said O ring = 91mm diameter.
Regards
Steve
Top
relisysxx
100Club
100Club
Posts: 125
Joined: 7th Feb 2010
Location: shropshire

#14 PostAuthor: relisysxx » Mon Mar 28, 2016 5:49 pm

91mm internal, that's the one!
Top
johny brando
100Club
100Club
Posts: 139
Joined: 3rd Aug 2013
Location: australia

Re: Oil Pressure

#15 PostAuthor: johny brando » Mon Apr 04, 2016 7:21 am

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
Top
Post Reply

Return to “Bike Help”

Who is online

Users browsing this forum: No registered users and 7 guests