Magnetic sump plug
30 June 2012, 08:32 PM
#6
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30 June 2012, 10:30 PM
#11
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The cheap Ebay ones are shat,when the oil gets hot the magnet stops working & drops all the crap back into the oil.
I did have one on my car & warmed the car up to change the oil & there was nothing at all on the magnet.
I believe the best ones to buy is an American one called The dimple they are around £18 but are supposed to be the best around.
I did have one on my car & warmed the car up to change the oil & there was nothing at all on the magnet.
I believe the best ones to buy is an American one called The dimple they are around £18 but are supposed to be the best around.
30 June 2012, 10:31 PM
#12
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I can tell you something for nothing ....... if you think you need one of these then your engine is shagged!!
If your engine is fine then the Oil Filter does a great job of catching particles to stop them doing damage ... this is replaced every 6 months.
What do you hope this item will do for you?
I shall be keeping my money firmly in my pocket ... times are hard, don't waste it!
Just the opinion of a Professional Engineer.
If your engine is fine then the Oil Filter does a great job of catching particles to stop them doing damage ... this is replaced every 6 months.
What do you hope this item will do for you?
I shall be keeping my money firmly in my pocket ... times are hard, don't waste it!
Just the opinion of a Professional Engineer.
30 June 2012, 11:21 PM
#13
Surely it's better for any metal particles to be caught on the magnet rather than clogging up the filter.
Yes it's maybe overkill fitting a magnetic sump plug but hey, it's £15. Most of us have oil temp/pressure gauges fitted, if they were that important Subaru would fit them as standard. We all do things that are probably not needed but if it puts our minds at ease then it's all good in my book.
It can't do any harm at the end of the day, mine caught a few bits last time I changed the oil so I'll carry on using one. EVERY one of our engines will produce small amounts of metal filings which will be caught in the filter, or if you've got a spare £15 they will be caught on the magnetic sump plug keeping your filter clear.
Yes it's maybe overkill fitting a magnetic sump plug but hey, it's £15. Most of us have oil temp/pressure gauges fitted, if they were that important Subaru would fit them as standard. We all do things that are probably not needed but if it puts our minds at ease then it's all good in my book.
It can't do any harm at the end of the day, mine caught a few bits last time I changed the oil so I'll carry on using one. EVERY one of our engines will produce small amounts of metal filings which will be caught in the filter, or if you've got a spare £15 they will be caught on the magnetic sump plug keeping your filter clear.
30 June 2012, 11:22 PM
#14
I can tell you something for nothing ....... if you think you need one of these then your engine is shagged!!
If your engine is fine then the Oil Filter does a great job of catching particles to stop them doing damage ... this is replaced every 6 months.
What do you hope this item will do for you?
I shall be keeping my money firmly in my pocket ... times are hard, don't waste it!
Just the opinion of a Professional Engineer.
If your engine is fine then the Oil Filter does a great job of catching particles to stop them doing damage ... this is replaced every 6 months.
What do you hope this item will do for you?
I shall be keeping my money firmly in my pocket ... times are hard, don't waste it!
Just the opinion of a Professional Engineer.
Need a reason to buy a Magnetic Sump Plug...? Heres one!
scoober101
Is it worth a few quid as it's not like one is throwing silly money around, dunno what do you think?
30 June 2012, 11:38 PM
#15
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No idea about that thread ... and it won't change my opinion.
If it was needed don't you think that Subaru would fit one?
They are £13 Retail - it would cost Subaru about 50p to fit in place of the one already there ...... if it protected their engines and therefore their warranty obligations they would fit them in a blink of the eye.
They fit a magnetic sump plug to their gearboxes - because they don't fit a filter.
I have changed the oil in the gearbox, and looked at the gearbox sump plug at about 60,000 miles - it had a very fine grey paste on it - perfect!
The filter is the place to catch particles ..... not the sump plug IMO.
If it was needed don't you think that Subaru would fit one?
They are £13 Retail - it would cost Subaru about 50p to fit in place of the one already there ...... if it protected their engines and therefore their warranty obligations they would fit them in a blink of the eye.
They fit a magnetic sump plug to their gearboxes - because they don't fit a filter.
I have changed the oil in the gearbox, and looked at the gearbox sump plug at about 60,000 miles - it had a very fine grey paste on it - perfect!
The filter is the place to catch particles ..... not the sump plug IMO.
30 June 2012, 11:49 PM
#17
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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 - the rest (most) will go to the filter and the filter will do the job it has been designed to do.
If it makes you feel better, do it .... but, please, don't claim that it is doing anything - it won't be!
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 - the rest (most) will go to the filter and the filter will do the job it has been designed to do.
If it makes you feel better, do it .... but, please, don't claim that it is doing anything - it won't be!
30 June 2012, 11:53 PM
#18
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 - the rest (most) will go to the filter and the filter will do the job it has been designed to do.
If it makes you feel better, do it .... but, please, don't claim that it is doing anything - it won't be!
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 - the rest (most) will go to the filter and the filter will do the job it has been designed to do.
If it makes you feel better, do it .... but, please, don't claim that it is doing anything - it won't be!
01 July 2012, 12:02 AM
#19
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Certainly my camshaft had no wear to speak of even after 100,000 miles.
Like I said, if it makes you sleep at night - buy one.
BUT, change that oil and filter every 6 months - that single act will do more to protect your engine than anything else.
Like I said, if it makes you sleep at night - buy one.
BUT, change that oil and filter every 6 months - that single act will do more to protect your engine than anything else.
01 July 2012, 12:14 AM
#20
Did you put a micrometer to it lol,like I said it's minimal but you also get slight wear on the oil pump gears and piston rings which again is minimal but would be collected by a MSP also.
I do agree that by simply changing oil on a regular basis will more than suffice though.
01 July 2012, 08:23 AM
#21
01 July 2012, 09:54 AM
#22
Ok this is where I'm coming from
I fitted a magnetic sump plug 2 oil changes ago.
On the first change after fitting it I found quite a bit of metal swarf on the magnet. Bare in mind it had only been circa 500 miles since I fitted it and changed the oil and filter. The amount of swarf I found in my opinion hadn't accumulated in just 500 miles.
This would suggest to me that the filter had not been catching the metal particles.
Please bare in mind I change my oil and filter very often
If when I next change my oil and filter I find nothing or very little swarf on the magnet then your argument Pete will be squashed.
I fitted a magnetic sump plug 2 oil changes ago.
On the first change after fitting it I found quite a bit of metal swarf on the magnet. Bare in mind it had only been circa 500 miles since I fitted it and changed the oil and filter. The amount of swarf I found in my opinion hadn't accumulated in just 500 miles.
This would suggest to me that the filter had not been catching the metal particles.
Please bare in mind I change my oil and filter very often
If when I next change my oil and filter I find nothing or very little swarf on the magnet then your argument Pete will be squashed.
Last edited by MattyB1983; 01 July 2012 at 10:03 AM.
01 July 2012, 12:58 PM
#23
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I have worked on the leading edge of Technology and Engineering for many decades.
One thing of which I am sure is this - 'A whole load of bollox is spoken on Car Forums the world over' ..... by well meaning hobbyists, I grant you - but, it is utter tosh!
If you could see swarf on your sump plug after 500 miles then I'll ask you where it has come from? And, if you can see it the filter will block it .... if it remains in the sump, who cares about it?
The pick up pipe has a filter on it too .... coarse, I know, but it's there. All the magnet is picking up is what is harmlessly sitting in the sump - going nowhere.
I will repeat, if you are a sensitive one who is scared of the dark - or bumps in the night - fit one. If you know what's what - spend the money on something else!
IMO.
One thing of which I am sure is this - 'A whole load of bollox is spoken on Car Forums the world over' ..... by well meaning hobbyists, I grant you - but, it is utter tosh!
If you could see swarf on your sump plug after 500 miles then I'll ask you where it has come from? And, if you can see it the filter will block it .... if it remains in the sump, who cares about it?
The pick up pipe has a filter on it too .... coarse, I know, but it's there. All the magnet is picking up is what is harmlessly sitting in the sump - going nowhere.
I will repeat, if you are a sensitive one who is scared of the dark - or bumps in the night - fit one. If you know what's what - spend the money on something else!
IMO.
01 July 2012, 02:35 PM
#24
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I have a dimples magnetic sump plug fitted and just changed my oil,It was completely clear of any swarf.I would agree that an engine producing swarf probably as an issue.This is on a ten year old wrx with 49000 miles.
01 July 2012, 03:18 PM
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i have one off ebay fitted to my engine and it has been fine caught a fair few metal filings before i rebuilt it which to me even if they are just floating about in the sump is it not better having them stuck to a magnet leaving a smaller chance of it going anywhere and doing any damage? especially for the sake of 6 measley quid.
01 July 2012, 03:49 PM
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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.
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.
01 July 2012, 04:54 PM
#28
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You are obviously one who gets worried about things like stepping on the gaps in the pavement ..... and for you, a magnetic sump plug is worth every penny.
You can put me on ignore if you want to filter out the sensible posts and just leave the scary ones ........ or, you can just ignore what I say - but, I would suggest that you are one who needs all the help they can get to get through life without making their own choices.
You can put me on ignore if you want to filter out the sensible posts and just leave the scary ones ........ or, you can just ignore what I say - but, I would suggest that you are one who needs all the help they can get to get through life without making their own choices.
Last edited by pslewis; 01 July 2012 at 04:55 PM.
01 July 2012, 04:58 PM
#29
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Please .... ask yourself why they are not fitted as standard on all cars??
That's right - because the people who actually build cars and engines and have forgotten more about engines than most of us will ever know DON'T SEE ANY ADVANTAGE IN THEM!
That's right - because the people who actually build cars and engines and have forgotten more about engines than most of us will ever know DON'T SEE ANY ADVANTAGE IN THEM!
Last edited by pslewis; 01 July 2012 at 05:00 PM.
01 July 2012, 05:57 PM
#30
There is lots of stuff fitted to our cars that Subaru didn't fit, some of which DOES actually help. By saying everything that Subaru didn't fit as standard is crap is a rediculous argument.
They didn't fit my 360mm discs and Porsche calipers as standard, but I can quite happily say they are above and beyond the pathetic 4 pots Subaru issued.