Sergeant Pluck
Registered user
Actually, now I will ask a stupid question (I don't have a phd) - why wouldn't you wash a new oil filter out with petrol? What's the theory?
Pluck
Pluck
Oil filter, prime or not ?
- Thread starter Deleted member CB
- Start date
Deleted member CB
Registered user
The interior of the "canister" type oil filters are made of some kind of paper, sort of like blotting paper, don't think it would fare to well being soaked in petrol, impossible to clean it assembled anyway, thats why they are disposable. I was told a story of someone doing this some years ago, thought it was funny, tight wad.
Tarka, I really don't see a problem with my question, I'm not a troll, & I'm not going to enter into you name calling, have a pleasant evening.
Tarka, I really don't see a problem with my question, I'm not a troll, & I'm not going to enter into you name calling, have a pleasant evening.
Sergeant Pluck
Registered user
There you go - I now know something I didn't know 10 minutes ago - cheers
Pluck
STUBBS
undead
to make it 3 all i dont prime mine
Hatchet
Registered user
I prime mine. But only since I read this.
http://www.r1200gs.info/howto/oil-change.html
The way I see it. It doesn’t do any harm to prime, and the jury is out as to whether not priming harms the engine.
So if you’re changing you own oil. Prime the filter
.
http://www.r1200gs.info/howto/oil-change.html
The way I see it. It doesn’t do any harm to prime, and the jury is out as to whether not priming harms the engine.
So if you’re changing you own oil. Prime the filter
.
Deleted member CB
Registered user
In all fairness it probably doesn't need to be primed, I just do it to be on the safe side till I know for sure. I would imagine due to the position of the filter it fills when you fill the engine with oil, just be nice if someone could confirm that.
I wonder if the position of the filter has something to do with why these engines last so long, very little oil starvation on start up? I think on many engines the oil drains away from the filter leading to a longer time with low or no oil pressure.
I wonder if the position of the filter has something to do with why these engines last so long, very little oil starvation on start up? I think on many engines the oil drains away from the filter leading to a longer time with low or no oil pressure.
There is a fair bit of reading re oil filters on the net. One guy in the states bought many different makes and dissected them..discovered that there were only really about four manufacturers.
So most filters contain a bypass valve that allows oil to flow when the element is clogged and also an anti-drain valve to prevent gravity emptying when not running..basic city&guilds mech stuff....all details usually at the back of any filter catalogue..Purolator for example see specifications section bottom of page for a VW golf
http://www.pureoil.com/smartlink/?partnum=PL20252
So most filters contain a bypass valve that allows oil to flow when the element is clogged and also an anti-drain valve to prevent gravity emptying when not running..basic city&guilds mech stuff....all details usually at the back of any filter catalogue..Purolator for example see specifications section bottom of page for a VW golf
http://www.pureoil.com/smartlink/?partnum=PL20252
Lets be realistic girls. How long will it take to fill the oil filter with oil............a second or two maybe. You engine swims around in oil and even when you drain it, there is a film of oil left on all the bits anyway.
In the couple of seconds it takes to fill the filter you aren't going to damage anything due to the residual oil left in the sytem.
Feck me, it's a bike not the crown jewels.
I don't prime mine (but I do talk to it and ask it to take care of my precious baby, I find this helps tremendously and the engine runs 100% smoother and the bike is now 150mph faster in first gear).
In the couple of seconds it takes to fill the filter you aren't going to damage anything due to the residual oil left in the sytem.
Feck me, it's a bike not the crown jewels.
I don't prime mine (but I do talk to it and ask it to take care of my precious baby, I find this helps tremendously and the engine runs 100% smoother and the bike is now 150mph faster in first gear).
Tasy's BIGJIM
Registered user
An answer ??
Large Engines ( Like Diesel Truck or even Larger Ship engines) have Large Bearings and are usually Primed? To start Large engines with Dry Bearings adds stress. This where the idea comes from. So small engines ( say below 5:0 ltr)? Usualy still have oil in and around their Bearings. Although some modern oil systems run a Back pressure Vale within the system to prevent oil Flow Back from the Crank. (some oil filters have that valve some are in the internals of the Motor)
To go for a second without oil, well ? Are we talking now about Roller Bearing Mains with a Preasured oil return/ Dry Sump ...NO, with BMW are shell bearing and runs wet.
How ever I do fill my new filter with new oil when replacing.
FILTER: The Micros of the Paper or Screen are designed for oil not thin petrol. This petrol loosen old deposits ( fines and screed) NOT GOOD !
Buy New Filters from a Filter Suply I buy mine by a Pack. Yes they Cheap but are Recomended Filters.
My 1100 loves clean oil and new filter+ correct valve adjustment all equals a sweet sounding motor.
Mechanics/ Fitters learn this year one at Trade School.
But it takes an old Fart Like Me to remember Rebuilding a Total Loss Oil System MotorCycle Engine?.... but that's another story...
Large Engines ( Like Diesel Truck or even Larger Ship engines) have Large Bearings and are usually Primed? To start Large engines with Dry Bearings adds stress. This where the idea comes from. So small engines ( say below 5:0 ltr)? Usualy still have oil in and around their Bearings. Although some modern oil systems run a Back pressure Vale within the system to prevent oil Flow Back from the Crank. (some oil filters have that valve some are in the internals of the Motor)
To go for a second without oil, well ? Are we talking now about Roller Bearing Mains with a Preasured oil return/ Dry Sump ...NO, with BMW are shell bearing and runs wet.
How ever I do fill my new filter with new oil when replacing.
FILTER: The Micros of the Paper or Screen are designed for oil not thin petrol. This petrol loosen old deposits ( fines and screed) NOT GOOD !
Buy New Filters from a Filter Suply I buy mine by a Pack. Yes they Cheap but are Recomended Filters.
My 1100 loves clean oil and new filter+ correct valve adjustment all equals a sweet sounding motor.
Mechanics/ Fitters learn this year one at Trade School.
But it takes an old Fart Like Me to remember Rebuilding a Total Loss Oil System MotorCycle Engine?.... but that's another story...
Oh dear, they're all coming out of the woodwork and getting involved now 
Mondays, weds, fridays i prime.
Tues,thurs, saturday i don't prime.
Sunday filters get washed in petrol.
The only filters that get washed in petrol are oil bath airfilters. Remember those.
Mondays, weds, fridays i prime.
Tues,thurs, saturday i don't prime.
Sunday filters get washed in petrol.
The only filters that get washed in petrol are oil bath airfilters. Remember those.
Deleted account 240901001
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Yup... just done the one on "Ol' Faithful"....... a Winget dumper....
Oh? and I prime too....
gsjoe
Guest
Firstly no, the oil filter is not gravity fed, Its part of the high pressure system that is seperate from the pump up, so the oil will be forced through the filter from the pump under pressure, there isn't really any need to prime the filter as the pump pressure is so high it will bleed in seconds, some engines have filters mounted at angles such, that the oil drains out every time the engines turned off then rebleeds on every start up! but it can't hurt to prime, clean oil straight from a can is alot healthy than 6000 mile black crap in anyones money!
P.S Don't listen to those nasty men! (or women! ahem)
P.S Don't listen to those nasty men! (or women! ahem)
Deleted account W
Guest
ohhh shit, I thought the engine was sealed for life!
When I do a oil & filter change I fill the filter with oil before fitting it, does anyone know for sure if this is necessary. Would oil run into an empty filter or does it only fill when the oil pump starts pumping?
Nice to know that oil is there straight away after I've washed the filter with petrol
Carl, I have done about 10 oil changes on my 1100 and 3 on Lucy's I always prime the filter. My theory is that if the filter is empty then for the first 3 - 4 seconds while the motor spins up (plugs in or out) the oil pressure is going to be zero which can't be a good thing despite what it may say in the manual.
It can't do any harm and takes about 30 seconds to do
alimey4u2
Registered user
If it's good enough for Miss Jean Brodie.......
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