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Old Jul 1, 2012 | 06:06 PM
  #31  
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I have no oil pressure guage - a big red light is sufficient.

I can tell you now, for nothing, that Subaru would fit these ..... IF they thought they would protect their engines, they do nothing, so they don't fit them.

To say that Subaru don't fit a parachute to help you slow down ... so they may also skip on a magnetic sump plug is laughable

Everyone has to choose what they believe to be important for their vehicles .... 99.9% of people wouldn't even know what one of these is - of the 0.1% remaining - only 0.0001% actually believe that they do anything other than empty your wallet!
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Old Jul 1, 2012 | 06:15 PM
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Originally Posted by gdavey
I used to have a magnetic sump plug on my first car, a 1964 Volvo 122S, which I bought on 93k miles and thrashed to within an inch of its life when I used to rally it (it was sold on 225k miles). I used to change the oil every 3,000 miles and filter every 6,000 miles and that would always have some swarf (like metal filings) on the plug.

Whilst everything was steel in that engine, apart from the bearings, I never gave any thought as to where it was coming from but felt it was better to be attached to the sump plug and wiped off on each service than sitting on the bottom of the sump and potentially circulating.
my point exactly
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Old Jul 1, 2012 | 06:27 PM
  #33  
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In fact, I have heard horror stories of the magnet becoming detached from the plug - to rattle around in the engine (until attaching itself to the nearest metal)
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Old Jul 1, 2012 | 07:06 PM
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Originally Posted by pslewis
I have no oil pressure guage - a big red light is sufficient.!
By the time that 'big red light' comes on its game over 99% of the time anyway, but I'm sure you know that.
Oil temp and pressure gauges in my opinion are the first two items any Impreza owner should buy.
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Old Jul 1, 2012 | 07:11 PM
  #35  
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I had an Impreza for over 10 years, did over 100,000 miles in it ..... and serviced it myself from year 5 onwards.

I have ears and eyes and a nose to smell ..... I don't need gauges to tell me what's happening - I know whats happening.

Maybe the old boys like me have this skill and the kiddies haven't (so need mickey mouse devices to tell them that their engine is running, stalled, stopped)?
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Old Jul 1, 2012 | 07:15 PM
  #36  
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Originally Posted by pslewis
I had an Impreza for over 10 years, did over 100,000 miles in it ..... and serviced it myself from year 5 onwards.

I have ears and eyes and a nose to smell ..... I don't need gauges to tell me what's happening - I know whats happening.

Maybe the old boys like me have this skill and the kiddies haven't (so need mickey mouse devices to tell them that their engine is running, stalled, stopped)?
You seriously are a fool aren't you old man,the only thing that is laughable here is your post's.
How the hell can you post that you would know if your engine was in trouble in any way through hearing/seeing or smelling
So you would know if your oil pump was down on pressure through your heightened senses would you
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Old Jul 1, 2012 | 07:29 PM
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I give up.

Pete, your posts are actually laughable. Good luck to you sir.
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Old Jul 1, 2012 | 07:46 PM
  #38  
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You kiddies are funny!!
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Old Jul 1, 2012 | 07:47 PM
  #39  
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Originally Posted by pslewis
You kiddies are funny!!
So are you old man!!
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Old Jul 1, 2012 | 07:50 PM
  #40  
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I may be old, but I ain't scared of an engine like you boys who are wet behind the ears
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Old Jul 1, 2012 | 07:50 PM
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Now that is a funny statement Pete!!
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Old Jul 1, 2012 | 08:11 PM
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'I have worked on the leading edge of Technology and Engineering for many decades'

FFS assuming then you work for NASA? Or a professor at M.I.T? Or head of development at silicone valley?

I can't beleive people are arguing over a £10 sump plug, only on Scoobynet. If your happy seeing filings on your plug when doing an oil change then buy one.
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Old Jul 1, 2012 | 09:13 PM
  #43  
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NASA is a very, very, close guess ......

It's not the £10 Sump Plug we are discussing really - it is the whole verbal claptrap that is spoken about these cars.

They are ordinary cars, with ordinary needs ... yes, they had a cult status which brings with it myths and untrues .... but, this is like the CockLink and 'Special' Oil Change proceedure all over again.
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Old Jul 1, 2012 | 09:49 PM
  #44  
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'cocklink'..... LOL.

Only the other week I read a thread on here about a knocklink. Basically a chap filled his car up (was mapped on 99ron) and drove off a usual. He then noticed his knocklink lighting up like a Christmas tree under load and realized he must of put normal unleaded in or the super was not as super as advertised.
Had he not had that knocklink flashing up in his face to make him aware of knock he would of carried on as normal and 'could' of done some irreversible damage.

I do agree though Pete, some of the stuff we fit to/in our cars are sometimes overkill. But these are our pride and joy, I for one have spent enough money to ignite a divorce. So if fitting a gauge, monitor or even magnetic sump plug gives me piece of mind or even the visual knowledge that all is well then where's the issue.
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Old Jul 1, 2012 | 09:51 PM
  #45  
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cant do any harm for the cost of one. and they do pick up small bits of swarf on mine so they are at least doing something no matter how minor.
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Old Jul 1, 2012 | 10:20 PM
  #46  
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Originally Posted by MattyB1983
By the time that 'big red light' comes on its game over 99% of the time anyway, but I'm sure you know that.
Oil temp and pressure gauges in my opinion are the first two items any Impreza owner should buy.
I would be wary about fitting a pressure gauge if it means deleting the dash pressure warning light. I believe the light is a better way to diagnose pressure problems caused by things like a cracked oil feed pipe. The gauge takes some time to read the pressure on start up where as you can notice the light staying on longer on start up.
The one thing pslewis said that is valid regarding the magnetic sump plug is magnets coming away on cheap plugs and there being a possibility of it attaching itself to critical part of the engine.
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Old Jul 1, 2012 | 10:27 PM
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Originally Posted by chopperman
I would be wary about fitting a pressure gauge if it means deleting the dash pressure warning light. I believe the light is a better way to diagnose pressure problems caused by things like a cracked oil feed pipe. The gauge takes some time to read the pressure on start up where as you can notice the light staying on longer on start up.
The one thing pslewis said that is valid regarding the magnetic sump plug is magnets coming away on cheap plugs and there being a possibility of it attaching itself to critical part of the engine.
you can attach both if you get the remote feed, i just wanted the original light on the dash too so i did it.
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Old Jul 1, 2012 | 10:36 PM
  #48  
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Originally Posted by pslewis
I had an Impreza for over 10 years, did over 100,000 miles in it ..... and serviced it myself from year 5 onwards.

I have ears and eyes and a nose to smell ..... I don't need gauges to tell me what's happening - I know whats happening.

Maybe the old boys like me have this skill and the kiddies haven't (so need mickey mouse devices to tell them that their engine is running, stalled, stopped)?
From one 'old boy' to another, you could be right, Pete. I've been driving since the early '60's and like you as an ex engineer, have developed a pretty good sense of mechanical sympathy. Having said that, as a driver of a performance car, I have all the gizmos you abhor to back up my senses and keep me informed of actual values. To me, it's part and parcel of running such a car. I also use the best quality oils, fluids and fuel. Subaru may well choose with confidence, to not fit certain gauges and gizmos to their cars, but I choose to.
I find it a bit irritating that as one of the 'old boys' you come on here and spout your infinate wisdom and consider anyone who disagrees with you to be an idiot. You sometimes come up with some good sense but it's often the patronising way you put it that can be so annoying. Sadly, you've become a figure of fun but you've never taken the hint.


JohnD
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Old Jul 1, 2012 | 10:39 PM
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Originally Posted by tubbytommy
you can attach both if you get the remote feed, i just wanted the original light on the dash too so i did it.
Good to know. Best of both worlds.
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Old Jul 1, 2012 | 10:46 PM
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Originally Posted by MattyB1983
This is what I use for the same price, they are on sales.

www.dhcars.co.uk
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Old Jul 1, 2012 | 11:18 PM
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Originally Posted by chopperman
Good to know. Best of both worlds.
yep, my dash light is still in use too.
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Old Jul 1, 2012 | 11:29 PM
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Originally Posted by pslewis
NASA is a very, very, close guess ......

It's not the £10 Sump Plug we are discussing really - it is the whole verbal claptrap that is spoken about these cars.

They are ordinary cars, with ordinary needs ... yes, they had a cult status which brings with it myths and untrues .... but, this is like the CockLink and 'Special' Oil Change proceedure all over again.
Is this the part were I ask you what you do, but you don't tell me, and I'm then meant to be in awe of you?
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Old Jul 2, 2012 | 07:56 AM
  #53  
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I amazed nobody has mentioned the bypass valve that is fitted in every oil filter on every Subaru (and pretty much any car with a spin-on filter canister).

Above a certain oil pressure, it pops open. So un-filtered oil is circulated through the engine.

Get a can opener and take a filter apart if you don't belive me. Its not a proper full flow filter....thats why they are so small! This is also something ponder about when you use thicker oils.....(as the thicker it is, the harder it is to get through the filter media, so more likely it will open in extreme conditions).

Last edited by ALi-B; Jul 2, 2012 at 08:01 AM.
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Old Jul 2, 2012 | 08:43 AM
  #54  
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Originally Posted by ALi-B
I amazed nobody has mentioned the bypass valve that is fitted in every oil filter on every Subaru (and pretty much any car with a spin-on filter canister).

Above a certain oil pressure, it pops open. So un-filtered oil is circulated through the engine.

Get a can opener and take a filter apart if you don't belive me. Its not a proper full flow filter....thats why they are so small! This is also something ponder about when you use thicker oils.....(as the thicker it is, the harder it is to get through the filter media, so more likely it will open in extreme conditions).
So with this in mind a magnetic sump plug IS a good idea..

******* NASA, jog on Pete. Stick to space ships and leave the imprezas to us young ones hey
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Old Jul 2, 2012 | 09:06 AM
  #55  
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Originally Posted by pslewis
Please .... ask yourself why they are not fitted as standard on all cars??
Ok, heres is a balancer from one old boy to another... how come most manufacturers USED to fit them and then removed them in the early 90s? I actually have the TSB from Ford explaining why we had to remove them as part of our PDI and fit the new new non magnetic versions, and most manufacturers followed suit for the same reason. High end manufacturers still fit them, such as Porsche, Ferrari and Lamborghini, even Aston, and they are still Ford's...


Originally Posted by pslewis
In fact, I have heard horror stories of the magnet becoming detached from the plug - to rattle around in the engine (until attaching itself to the nearest metal)
Thats why OE's dont use alloy sump plugs with magnets in. To work correctly and safely, the plug needs to be made of steel.

Originally Posted by ALi-B
I amazed nobody has mentioned the bypass valve that is fitted in every oil filter on every Subaru (and pretty much any car with a spin-on filter canister). Above a certain oil pressure, it pops open. So un-filtered oil is circulated through the engine.
Correct, saved me a few lines of text.

Then you need to look at what size of particle an oil filter will collect, and what components has that particle flowed through before it reaches the filtration medium?

Finally, what are the smaller particles doing to the engine that the filter cannot collect?

I look forward to your replies.
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Old Jul 2, 2012 | 09:09 AM
  #56  
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Originally Posted by stedee
I thought most of the wear particles are non magnetic anyway
Originally Posted by pslewis
Certainly, Aluminium isn't a Ferrous metal .... and the bearing coatings are not either.

So, what particles will we be seeing on this magnet?

Also, what is the magnetic radius of the plug? I suspect that only particles within a few mm's of the plug will be attracted with enough power to be held
Wow, you worked at the "leading edge of Technology and Engineering for many decades" and you make a reply like that about engines?
What type of engineering and technology were you involved with, the assembly of Legoland?!

Last edited by Evolution Stu; Jul 2, 2012 at 11:05 AM.
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Old Jul 2, 2012 | 10:17 AM
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Get the feeling that many of the current S'net subscribers have come along since the heyday of PSLewis posts?
Pete is famous for his pontifications on subjects such as '**** oil change procedures' 'Cocklinks (Knocklink)' 'The stupidity of using oil costing more than £15 for 5litres' and many others. He's been the source of much amusement over the years and it seems he's lost none of his touch!

JohnD
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Old Jul 2, 2012 | 11:02 AM
  #58  
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Post 124 onwards.

https://www.scoobynet.com/879362-pro...filters-5.html

Last edited by Maz; Jul 2, 2012 at 11:04 AM.
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Old Jul 2, 2012 | 11:09 AM
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Originally Posted by chopperman
I would be wary about fitting a pressure gauge if it means deleting the dash pressure warning light. I believe the light is a better way to diagnose pressure problems caused by things like a cracked oil feed pipe. The gauge takes some time to read the pressure on start up where as you can notice the light staying on longer on start up.
The one thing pslewis said that is valid regarding the magnetic sump plug is magnets coming away on cheap plugs and there being a possibility of it attaching itself to critical part of the engine.
My gauge reads pressure straight away on start up, and as the gauge sender and original light are in the same location surely they both read the same and if there was a problem one wouldn't tell you any different from the other.
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Old Jul 2, 2012 | 12:03 PM
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Originally Posted by Einstein RA
Good read, another 'Subaru god' being educated
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