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The_Bay
Member Since: 21 Oct 2016
Location: wiltshire
Posts: 38
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| engine oil priming procedure |
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Hello,
can anybody tell me if there is a procedure to prime the engine and/or oil pump with oil.
i've just refitted a replacement engine and fitted a new oil pump etc. I'm concerned that there will be no oil pressure for a fair few seconds on initial start up
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 2nd Jan 2017 6:52 pm |
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jk3528
Member Since: 23 Feb 2016
Location: stoke on trent
Posts: 96
 
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I would leave the injectors unplugged and turn it over on the starter for a few seconds first if the engine has been rebuilt it should have been lubricated when put together
in older oil pumps I used to put vasoline in it to help it draw the oil on first use
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| 4th Jan 2017 2:18 pm |
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stuartp
Member Since: 10 Dec 2016
Location: warwickshire
Posts: 3
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if you've not replaced the oil pump, then do as all ready mentioned or pull the fuel pump fuse turn it over for a while, then refit then let it fire up.
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| 4th Jan 2017 2:36 pm |
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The_Bay
Member Since: 21 Oct 2016
Location: wiltshire
Posts: 38
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Stuartp, I've swapped the the engine out from a jag, so had all the sump etc off, changed the oil pump etc while it was all out. It's probably not had any oil in it for 3 weeks and there's nothing in the oil gallories. I think I'll pull the injector loom off or pull the fuse lol you said
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| 6th Jan 2017 3:35 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10360
  
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I think it's a little pointless from my experience.
I had the oil pickup pipe off and on therefore
While the injectors were removed (so no compression) I gave it a good crank over (pump fuse removed too) but could not get the oil light to go out.
I inspected the oil filter. No presence of oil near it. So poured oil over the filter.
With everything back together I started it. (took a while to get the thing to go)
Then took at least 10 seconds to get the oil light to go out!
Glad I had pre oil the cams, lifters, turbo, down oil sensor hole.
So now my thoughts are that any priming of this engine is a waste of time and only adds additional wear!
And the time taken cranking it over to get it going will act as priming (if indeed priming does anything on these)
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| 6th Jan 2017 3:52 pm |
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jk3528
Member Since: 23 Feb 2016
Location: stoke on trent
Posts: 96
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that's why you put the vasoline in the pump it creates a vacume to suck up the oil
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| 6th Jan 2017 6:12 pm |
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M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8072
 
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jk3528 wrote:I would leave the injectors unplugged and turn it over on the starter for a few seconds first if the engine has been rebuilt it should have been lubricated when put together
in older oil pumps I used to put vasoline in it to help it draw the oil on first use
Unplugging the injector electronics and cranking can cause disasterus damage to the engine  It can when others can't,
It will when others won't,
It goes where others don't.
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| 6th Jan 2017 6:25 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10360
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Its unplugging them while running Iirc
can cause them to stay open.
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| 6th Jan 2017 7:35 pm |
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spikekellyrm
Member Since: 23 Jul 2015
Location: Manchester
Posts: 662
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Sorry to interrupt, but is any of this relevant when changing the oil and filter?
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| 6th Jan 2017 7:38 pm |
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sputnixb51
Member Since: 23 Apr 2013
Location: Morayshire
Posts: 833
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Spike Kelly RM no non at all, just make sure you locate the filter spigot correctly in the port it fits then screw the housing down by hand for several threads before tightening with socket etc.
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| 6th Jan 2017 7:48 pm |
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jk3528
Member Since: 23 Feb 2016
Location: stoke on trent
Posts: 96
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spikekellyrm wrote:Sorry to interrupt, but is any of this relevant when changing the oil and filter?
no only if the pump has been taken apart or changed for a new one
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| 6th Jan 2017 7:52 pm |
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spikekellyrm
Member Since: 23 Jul 2015
Location: Manchester
Posts: 662
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Thanks, came across this while doing some research before attempting a service tomorrow. Thanks again
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| 6th Jan 2017 7:53 pm |
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jk3528
Member Since: 23 Feb 2016
Location: stoke on trent
Posts: 96
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oil and filter change is easy unscrew the filter housing 4 turns
remove the bash plate from under the engine
remove sump plug let it drain and remove the filter fully
as said above locate the new filter change the o ring and put the housing back on then refit drain plu and fill with oil.
simples!
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| 6th Jan 2017 7:58 pm |
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