Omega Owners Forum
Chat Area => General Discussion Area => Topic started by: bob.dent on 20 November 2008, 13:04:07
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Car went in for major 20,000 mile service this morning and I assumed it would also mean a spark plug change. However, my mechanic just phoned me to say that they are platinum plugs and only need replacing every 80,000 miles and as they were replaced 35,000 miles ago, did I still want them replacing. :o
Something I wasn't aware of but at least it'll save me a few quid.
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platinum or not I never see a spark plug going 80,000 miles..
will degrade the performance and consume more petrol imho.. :-/
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platinum or not I never see a spark plug going 80,000 miles..
will degrade the performance and consume more petrol imho.. :-/
Thats what I thought Cem, so I'll get them changed on the next service.
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platinum or not I never see a spark plug going 80,000 miles..will degrade the performance and consume more petrol imho.. :-/
Yes indeed Cem, and by then they will be well clogged whatever they are made of!! ::) ::) :D ;)
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Assuming they are all in the same condidtion!
When we bought Ljay's MV6, there was a recent invoice for plugs...
I double checked....They had done the easy side but not the passenger side!
Needless to say 6 new ones went in!
Robbing Vauxhall Gits!
Youve already paid for em to be checked...cant be much more for new ones at that point ;)
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Contradictory and funny, I know a mechanic friend (driving E36 M3) entering races everyweek ..
he changes the spark plugs and oil everyweek :o ;D ;D
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Contradictory and funny, I know a mechanic friend (driving E36 M3) entering races everyweek ..
he changes the spark plugs and oil everyweek :o ;D ;D
For optimun performance no doubt, like F1 changes / rebuilds their engines after every race. :D :y :y
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Contradictory and funny, I know a mechanic friend (driving E36 M3) entering races everyweek ..
he changes the spark plugs and oil everyweek :o ;D ;D
For optimun performance no doubt, like F1 changes / rebuilds their engines after every race. :D :y :y
yep..but to do that I need more money :D
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Not sure they are platinum, TBH. :-/
They are Bosch style 4 electrode jobs. He is right to say that the service schedule states 80k but I would be inclined to change them at 40k, TBH. At the minimum they need to be checked to ensure that haven't worked loose, and for the price of them (3 quid each, or so, IIRC) you may as well change them if you're going to go to the trouble of getting to them.
Kevin
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The plugs will do 80K miles without issue.
What I do find is that they work loose before this happens!
And they are not platinum, they just have 4 electrodes so in theory last 4 times longer
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The plugs will do 80K miles without issue.
What I do find is that they work loose before this happens!
And they are not platinum, they just have 4 electrodes so in theory last 4 times longer
What would happen if one or several were to come loose? Loss of compression and performance I assume - anything else? Not that I'm experiencing this as the engine is still running sweet even before the service, but it would be good to know.
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It would run like Mick Dundees (did)
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It would run like Mick Dundees (did)
Yeah, but then he runs his on single malt!! ::) ;D
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The plugs will do 80K miles without issue.
What I do find is that they work loose before this happens!
And they are not platinum, they just have 4 electrodes so in theory last 4 times longer
What would happen if one or several were to come loose? Loss of compression and performance I assume - anything else? Not that I'm experiencing this as the engine is still running sweet even before the service, but it would be good to know.
Happened to Tunnie recently. Yes, loss of compression but, more worryingly, the plug can overheat due to the reduced ability for it to conduct heat through the threads into the cylinder head, and it can break up.
As said, well worth checking they are correctly torqued.
Kevin
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The plugs will do 80K miles without issue.
What I do find is that they work loose before this happens!
And they are not platinum, they just have 4 electrodes so in theory last 4 times longer
As the professor says 80K miles is normal..I searched net a bit..
general acceptance is that if you make short trips and environment is
dirty, change early :-/
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Contradictory and funny, I know a mechanic friend (driving E36 M3) entering races everyweek ..
he changes the spark plugs and oil everyweek :o ;D ;D
For optimun performance no doubt, like F1 changes / rebuilds their engines after every race. :D :y :y
Not allowed to any more!
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platinum or not I never see a spark plug going 80,000 miles..will degrade the performance and consume more petrol imho.. :-/
Yes indeed Cem, and by then they will be well clogged whatever they are made of!! ::) ::) :D ;)
If a V6 is clogging plugs, then it probably needs more than just a service ::)
80k is too much in my opinion, I'm happier with 40k.
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If you've just gone in for a 20k service Bob, that cambelt can't be too far away by now ;D :P
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If you've just gone in for a 20k service Bob, that cambelt can't be too far away by now ;D :P
Another 20k to go James. :y
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If you've just gone in for a 20k service Bob, that cambelt can't be too far away by now ;D :P
Another 20k to go James. :y
Blimey...
On the spark plug issue mate, I would personally be really unhappy with it.
I bet they just couldn't be arsed to get the coil packs out....
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If you've just gone in for a 20k service Bob, that cambelt can't be too far away by now ;D :P
Another 20k to go James. :y
Blimey...
On the spark plug issue mate, I would personally be really unhappy with it.
I bet they just couldn't be arsed to get the coil packs out....
They were actually quite prepared to go ahead and do it but as I know the guys there really well, they were trying to save me a bit of money on the extra labour charge and wanted my decision. :y As I'm a bit skint, I've now told them to leave them until next intermediate service.
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If you've just gone in for a 20k service Bob, that cambelt can't be too far away by now ;D :P
Another 20k to go James. :y
Blimey...
On the spark plug issue mate, I would personally be really unhappy with it.
I bet they just couldn't be arsed to get the coil packs out....
They were actually quite prepared to go ahead and do it but as I know the guys there really well, they were trying to save me a bit of money on the extra labour charge and wanted my decision. :y As I'm a bit skint, I've now told them to leave them until next intermediate service.
Ah, in that case it's not so bad - I retract my comment
Must stop being so cynical about garages.... ;D
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If you've just gone in for a 20k service Bob, that cambelt can't be too far away by now ;D :P
Another 20k to go James. :y
Blimey...
On the spark plug issue mate, I would personally be really unhappy with it.
I bet they just couldn't be arsed to get the coil packs out....
They were actually quite prepared to go ahead and do it but as I know the guys there really well, they were trying to save me a bit of money on the extra labour charge and wanted my decision. :y As I'm a bit skint, I've now told them to leave them until next intermediate service.
Ah, in that case it's not so bad - I retract my comment
Must stop being so cynical about garages.... ;D
Can't say I blame you for that James, there's not many out there that I trust to work on my Mig. ;)
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Contradictory and funny, I know a mechanic friend (driving E36 M3) entering races everyweek ..
he changes the spark plugs and oil everyweek :o ;D ;D
For optimun performance no doubt, like F1 changes / rebuilds their engines after every race. :D :y :y
Not allowed to any more!
What :o :o :o After all those laps at very high revs, with maximum strain placed on all the engine's components and they cannot rebuild or replace the engine?! Not even replace piston rings?! :o :o
How about when they blow up? Also how does the engine survive a whole F1 season without major "treatment" after millions/billions of rev's?
I am amazed Martin! :o :o :o Tell me what they now have to do please. :D :D ;) :y
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Posted by: Marks DTM Calib Posted on: Today at 13:58
The plugs will do 80K miles without issue.
What I do find is that they work loose before this happens!
And they are not platinum, they just have 4 electrodes so in theory last 4 times longer
On my old renault safrane I blew a spark plug out (probably because I didn't tighten the sparky enough) - was towing the van at the time - going up steep hill with foot to floor suddenly mighty big bang - thought I'd blown a ring/valve - but engine kept going altho' made a mighty racket - towed the van 30 miles home on 3 cylinders which was a miracle - put new sparky in and engine ran as sweet as a nut but sad conclusion is that car is scrapped now :'( so now I've got a miggy :y
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Contradictory and funny, I know a mechanic friend (driving E36 M3) entering races everyweek ..
he changes the spark plugs and oil everyweek :o ;D ;D
For optimun performance no doubt, like F1 changes / rebuilds their engines after every race. :D :y :y
Not allowed to any more!
What :o :o :o After all those laps at very high revs, with maximum strain placed on all the engine's components and they cannot rebuild or replace the engine?! Not even replace piston rings?! :o :o
How about when they blow up? Also how does the engine survive a whole F1 season without major "treatment" after millions/billions of rev's?
I am amazed Martin! :o :o :o Tell me what they now have to do please. :D :D ;) :y
ceramic coating comes to my mind if they are allowed..
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Contradictory and funny, I know a mechanic friend (driving E36 M3) entering races everyweek ..
he changes the spark plugs and oil everyweek :o ;D ;D
For optimun performance no doubt, like F1 changes / rebuilds their engines after every race. :D :y :y
Not allowed to any more!
What :o :o :o After all those laps at very high revs, with maximum strain placed on all the engine's components and they cannot rebuild or replace the engine?! Not even replace piston rings?! :o :o
How about when they blow up? Also how does the engine survive a whole F1 season without major "treatment" after millions/billions of rev's?
I am amazed Martin! :o :o :o Tell me what they now have to do please. :D :D ;) :y
2 races, with all practice and qualifying
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Contradictory and funny, I know a mechanic friend (driving E36 M3) entering races everyweek ..
he changes the spark plugs and oil everyweek :o ;D ;D
For optimun performance no doubt, like F1 changes / rebuilds their engines after every race. :D :y :y
Not allowed to any more!
What :o :o :o After all those laps at very high revs, with maximum strain placed on all the engine's components and they cannot rebuild or replace the engine?! Not even replace piston rings?! :o :o
How about when they blow up? Also how does the engine survive a whole F1 season without major "treatment" after millions/billions of rev's?
I am amazed Martin! :o :o :o Tell me what they now have to do please. :D :D ;) :y
2 races, with all practice and qualifying
Blimey Martin, that really does put the engines under test then!! :o :o :o
Thanks :y :y
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I believe it is changing from 2 race meetings to 3 next season. :-/
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Contradictory and funny, I know a mechanic friend (driving E36 M3) entering races everyweek ..
he changes the spark plugs and oil everyweek :o ;D ;D
For optimun performance no doubt, like F1 changes / rebuilds their engines after every race. :D :y :y
Not allowed to any more!
What :o :o :o After all those laps at very high revs, with maximum strain placed on all the engine's components and they cannot rebuild or replace the engine?! Not even replace piston rings?! :o :o
How about when they blow up? Also how does the engine survive a whole F1 season without major "treatment" after millions/billions of rev's?
I am amazed Martin! :o :o :o Tell me what they now have to do please. :D :D ;) :y
2 races, with all practice and qualifying
Blimey Martin, that really does put the engines under test then!! :o :o :o
Thanks :y :y
You wont find many formula one engines with piston rings....or cams come to that!
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platinum or not I never see a spark plug going 80,000 miles..will degrade the performance and consume more petrol imho.. :-/
Yes indeed Cem, and by then they will be well clogged whatever they are made of!! ::) ::) :D ;)
If a V6 is clogging plugs, then it probably needs more than just a service ::)
80k is too much in my opinion, I'm happier with 40k.
I remember you saying that the one I sold you needed plugs on the passenger side James. The car had a full service three months earlier and I was billed for six plugs.
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Contradictory and funny, I know a mechanic friend (driving E36 M3) entering races everyweek ..
he changes the spark plugs and oil everyweek :o ;D ;D
For optimun performance no doubt, like F1 changes / rebuilds their engines after every race. :D :y :y
Not allowed to any more!
What :o :o :o After all those laps at very high revs, with maximum strain placed on all the engine's components and they cannot rebuild or replace the engine?! Not even replace piston rings?! :o :o
How about when they blow up? Also how does the engine survive a whole F1 season without major "treatment" after millions/billions of rev's?
I am amazed Martin! :o :o :o Tell me what they now have to do please. :D :D ;) :y
2 races, with all practice and qualifying
Blimey Martin, that really does put the engines under test then!! :o :o :o
Thanks :y :y
You wont find many formula one engines with piston rings....or cams come to that!
No rings - surprised.
No cams - how are they operated then - not pnuematic already!
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Contradictory and funny, I know a mechanic friend (driving E36 M3) entering races everyweek ..
he changes the spark plugs and oil everyweek :o ;D ;D
For optimun performance no doubt, like F1 changes / rebuilds their engines after every race. :D :y :y
Not allowed to any more!
What :o :o :o After all those laps at very high revs, with maximum strain placed on all the engine's components and they cannot rebuild or replace the engine?! Not even replace piston rings?! :o :o
How about when they blow up? Also how does the engine survive a whole F1 season without major "treatment" after millions/billions of rev's?
I am amazed Martin! :o :o :o Tell me what they now have to do please. :D :D ;) :y
2 races, with all practice and qualifying
Blimey Martin, that really does put the engines under test then!! :o :o :o
Thanks :y :y
You wont find many formula one engines with piston rings....or cams come to that!
No rings - surprised.No cams - how are they operated then - not pnuematic already!
So am I Martin!! :o :o :o ;D ;D
In this thread I am learning so much about what I just didn't know about F1 engines. 8-) 8-) 8-) Absolutely fascinating!! :y :y
But.......how do F1 engines work without piston rings? :-? :-?
I know they work on very fine tolerances, but how is the side of the piston sealed between the cylinder, given heat and expansion, let alone the pure high pressure of compression? :-? :-? :-? :-?
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The valvegear has been pneumatic for several years now,dont know anything about the lack of piston rings though.
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Contradictory and funny, I know a mechanic friend (driving E36 M3) entering races everyweek ..
he changes the spark plugs and oil everyweek :o ;D ;D
For optimun performance no doubt, like F1 changes / rebuilds their engines after every race. :D :y :y
Not allowed to any more!
What :o :o :o After all those laps at very high revs, with maximum strain placed on all the engine's components and they cannot rebuild or replace the engine?! Not even replace piston rings?! :o :o
How about when they blow up? Also how does the engine survive a whole F1 season without major "treatment" after millions/billions of rev's?
I am amazed Martin! :o :o :o Tell me what they now have to do please. :D :D ;) :y
2 races, with all practice and qualifying
Blimey Martin, that really does put the engines under test then!! :o :o :o
Thanks :y :y
You wont find many formula one engines with piston rings....or cams come to that!
No rings - surprised.
No cams - how are they operated then - not pnuematic already!
Yep.....its the only way to get the valve mass down to supoort the mega high revs.
Everything is such tight tolerance on them they dont need rings.....they also wont turn over at all if cold (they need heating up first!).
You have to consier that Cosworth removed cylinder liners about 6-7 years ago......the coolant system runs at 6Bar to improve coling adn raise the boiling point....very advanced setups!
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Another way of achieving very high revs safely is Ducati,s desmodromic system (no valve springs) but afaik Ducati own the patents and wont allow anyone else to use it.
The thing about them not being able to turn over when cold rings a bell,they are technically "seized" until heated up enough to be able to turn over. :y
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Contradictory and funny, I know a mechanic friend (driving E36 M3) entering races everyweek ..
he changes the spark plugs and oil everyweek :o ;D ;D
For optimun performance no doubt, like F1 changes / rebuilds their engines after every race. :D :y :y
Not allowed to any more!
What :o :o :o After all those laps at very high revs, with maximum strain placed on all the engine's components and they cannot rebuild or replace the engine?! Not even replace piston rings?! :o :o
How about when they blow up? Also how does the engine survive a whole F1 season without major "treatment" after millions/billions of rev's?
I am amazed Martin! :o :o :o Tell me what they now have to do please. :D :D ;) :y
2 races, with all practice and qualifying
Blimey Martin, that really does put the engines under test then!! :o :o :o
Thanks :y :y
You wont find many formula one engines with piston rings....or cams come to that!
No rings - surprised.
No cams - how are they operated then - not pnuematic already!
Yep.....its the only way to get the valve mass down to supoort the mega high revs.
Everything is such tight tolerance on them they dont need rings.....they also wont turn over at all if cold (they need heating up first!).
You have to consier that Cosworth removed cylinder liners about 6-7 years ago......the coolant system runs at 6Bar to improve coling adn raise the boiling point....very advanced setups!
:-? :o
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Another way of achieving very high revs safely is Ducati,s desmodromic system (no valve springs) but afaik Ducati own the patents and wont allow anyone else to use it.
The thing about them not being able to turn over when cold rings a bell,they are technically "seized" until heated up enough to be able to turn over. :y
first time I hear..Need to google !!
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Another way of achieving very high revs safely is Ducati,s desmodromic system (no valve springs) but afaik Ducati own the patents and wont allow anyone else to use it.
The thing about them not being able to turn over when cold rings a bell,they are technically "seized" until heated up enough to be able to turn over. :y
first time I hear..Need to google !!
A cam to open & another cam to close the valves .
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Think its one rocker to open valve and another to close it. :-/
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Another way of achieving very high revs safely is Ducati,s desmodromic system (no valve springs) but afaik Ducati own the patents and wont allow anyone else to use it.
The thing about them not being able to turn over when cold rings a bell,they are technically "seized" until heated up enough to be able to turn over. :y
first time I hear..Need to google !!
A cam to open & another cam to close the valves .
:-[
Thanks :y
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The valvegear has been pneumatic for several years now,dont know anything about the lack of piston rings though.
I know they are pneumatically sprung but I thought a cam shaft operated them
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Contradictory and funny, I know a mechanic friend (driving E36 M3) entering races everyweek ..
he changes the spark plugs and oil everyweek :o ;D ;D
For optimun performance no doubt, like F1 changes / rebuilds their engines after every race. :D :y :y
Not allowed to any more!
What :o :o :o After all those laps at very high revs, with maximum strain placed on all the engine's components and they cannot rebuild or replace the engine?! Not even replace piston rings?! :o :o
How about when they blow up? Also how does the engine survive a whole F1 season without major "treatment" after millions/billions of rev's?
I am amazed Martin! :o :o :o Tell me what they now have to do please. :D :D ;) :y
2 races, with all practice and qualifying
Blimey Martin, that really does put the engines under test then!! :o :o :o
Thanks :y :y
You wont find many formula one engines with piston rings....or cams come to that!
No rings - surprised.
No cams - how are they operated then - not pnuematic already!
Yep.....its the only way to get the valve mass down to supoort the mega high revs.
Everything is such tight tolerance on them they dont need rings.....they also wont turn over at all if cold (they need heating up first!).
You have to consier that Cosworth removed cylinder liners about 6-7 years ago......the coolant system runs at 6Bar to improve coling adn raise the boiling point....very advanced setups!
I know about the springing - but what opens the valves?
Surprised about lack of rings :o
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Hence their v twin engines can compete with 4 cylinder engines. :y