Knocklink
12 February 2006, 10:37 PM
#211
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CockLinks are for Chavs .......... same as Dump Valves and Gold Wheels!!
And i have agree 100%, gold wheels = GAY
Goto GAY thread, do not pass go, do not collect 200 poooonds.
Hehehe.
Not too sure about cocklink though.
Too much BS to wade through to get to the facts. But funny reading all the same.
12 February 2006, 10:38 PM
#212
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The knocking big ends couldn't be heard on cold start, and not below 2500rpm when hot. The car is a newage car so engine noise in the cabin is reduced. The knocklink activity was at low load, very light throttle which rules out detonation, given the severity of the lightshow. This was subsequently followed by a slighty noise that corresponded with the knocklink lighting up.
The owner didn't know what it was, I listened to the engine when he brought it in reporting a sudden increase in knocklink activity and a noise that was sounded like a "vibration". The actual diagnoses of big end failure was when I listened to the engine, but it wasn't obvious as it was in the early stages. The dealer has given the same diagnoses.
The ECU may not hae retarded the ignition at all, as the latest ECUs have a more selective ear than the knocklink. Even then, there are a multitude of parameters and maps to determine when the ECU does and doesn't listen for knock, and what it does or doesn't do when it hears it, or when it hears none of it.
If someone's going to spend £120 on their car, they're going to spend it regardless. They could spend it on a set of cheesy lights and a nodding scooby, or they could buy a knocklink. The knocklink at least, isn't without it's uses.
Paul
The owner didn't know what it was, I listened to the engine when he brought it in reporting a sudden increase in knocklink activity and a noise that was sounded like a "vibration". The actual diagnoses of big end failure was when I listened to the engine, but it wasn't obvious as it was in the early stages. The dealer has given the same diagnoses.
The ECU may not hae retarded the ignition at all, as the latest ECUs have a more selective ear than the knocklink. Even then, there are a multitude of parameters and maps to determine when the ECU does and doesn't listen for knock, and what it does or doesn't do when it hears it, or when it hears none of it.
If someone's going to spend £120 on their car, they're going to spend it regardless. They could spend it on a set of cheesy lights and a nodding scooby, or they could buy a knocklink. The knocklink at least, isn't without it's uses.
Paul
Originally Posted by pslewis
Thanks for the response Paul, it's interesting to hear that the CockLink Knock Sensor can pick up a failing Big End bearing .................. did the owner know it was a Big End and how did he know it wasn't something else?
Now, call me old fashioned (and I know I am!) but I can hear the Big Ends knocking, if they are, .......... what you are saying is that a CockLink would pick up that noise before it can be heard by ear??
In that case, the Subaru Knock Sensor would hear it too ...... and retard the ignition timing, needlessly.
This has really intrigued me now, the CockLinks ability to spot imminent mechanical failures before the owner even knows about them ........ how did you diagnose Big End failure if the only warning was the CockLink lights??
Pete
Now, call me old fashioned (and I know I am!) but I can hear the Big Ends knocking, if they are, .......... what you are saying is that a CockLink would pick up that noise before it can be heard by ear??
In that case, the Subaru Knock Sensor would hear it too ...... and retard the ignition timing, needlessly.
This has really intrigued me now, the CockLinks ability to spot imminent mechanical failures before the owner even knows about them ........ how did you diagnose Big End failure if the only warning was the CockLink lights??
Pete
12 February 2006, 10:57 PM
#213
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Originally Posted by Zen Performance
If someone's going to spend £120 on their car, they're going to spend it regardless. They could spend it on a set of cheesy lights and a nodding scooby, or they could buy a knocklink. The knocklink at least, isn't without it's uses.
Paul
Paul
Good God, it's worse than I thought
I am going to start making some Random Light Generators, with a pot to vary the lightshow ........... I'll make some device and make great claims for it, like, what?? Let me think?
Buy the LewisLink - it will give you forewarning of an imminent rear suspension joint failure on the left hand side ............ buy 2 and cover the right hand side too!! These joints and bushes are a known weak point in the Subaru vehicles .. they respond very slowly to suspension inputs and over time will make your rear suspension collapse.
The LewisLink will give an audiable warning of failure .............
All I will do is mount a strain gauge to some part of the suspension that moves slightly when going over bumps ........ it will then 'BLEEP' at the dashboard end and satisfy the idiot (sorry, owner) that its actaully doing something!!
I'll make a KILLING!!!!!
Pete
12 February 2006, 11:03 PM
#214
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Just to add, the car was a blobeye WRX PPP, had done 43,000 miles - mainly motorway, dealership maintained with extra oil changes and oil checked very week with very low use.
Coincidentally, the start of the noise was just after the 40,000 mile service.
Heat shields and other loose items were checked out to start with, but nothing found.
Ful boost was used for 3,000 miles whilst this was going on, with a careful look on the KL and the heavy foot removed if any lights looked like they were going above the greens.
A delta dash run (another useless piece of flim-flam?), just before surgery was carried out, showed no change to advance at all when KL was picking up some noise.
Rrather than a catastrophic failure, KL was there to save the day - My hero.
So Mr PSL - was this a car meeting your criteria for blowing up?
Coincidentally, the start of the noise was just after the 40,000 mile service.
Heat shields and other loose items were checked out to start with, but nothing found.
Ful boost was used for 3,000 miles whilst this was going on, with a careful look on the KL and the heavy foot removed if any lights looked like they were going above the greens.
A delta dash run (another useless piece of flim-flam?), just before surgery was carried out, showed no change to advance at all when KL was picking up some noise.
Rrather than a catastrophic failure, KL was there to save the day - My hero.
So Mr PSL - was this a car meeting your criteria for blowing up?
12 February 2006, 11:04 PM
#215
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I don't really know what they cost, I don't sell knocklinks!
But you make me a lewislink and I'll stock it! Can't guarantee I'll sell many though!
But you make me a lewislink and I'll stock it! Can't guarantee I'll sell many though!
12 February 2006, 11:08 PM
#216
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Originally Posted by Zen Performance
I don't really know what they cost, I don't sell knocklinks!
But you make me a lewislink and I'll stock it! Can't guarantee I'll sell many though!
But you make me a lewislink and I'll stock it! Can't guarantee I'll sell many though!
I could honestly make one for about £2 - sell to you for £6 - you retail at £14:99 .............. everyones a winner!!
Pete
12 February 2006, 11:08 PM
#217
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Originally Posted by blownbigendz
Just to add, the car was a blobeye WRX PPP, had done 43,000 miles - mainly motorway, dealership maintained with extra oil changes and oil checked very week with very low use.
Coincidentally, the start of the noise was just after the 40,000 mile service.
Heat shields and other loose items were checked out to start with, but nothing found.
Ful boost was used for 3,000 miles whilst this was going on, with a careful look on the KL and the heavy foot removed if any lights looked like they were going above the greens.
A delta dash run (another useless piece of flim-flam?), just before surgery was carried out, showed no change to advance at all when KL was picking up some noise.
Rrather than a catastrophic failure, KL was there to save the day - My hero.
So Mr PSL - was this a car meeting your criteria for blowing up?
Coincidentally, the start of the noise was just after the 40,000 mile service.
Heat shields and other loose items were checked out to start with, but nothing found.
Ful boost was used for 3,000 miles whilst this was going on, with a careful look on the KL and the heavy foot removed if any lights looked like they were going above the greens.
A delta dash run (another useless piece of flim-flam?), just before surgery was carried out, showed no change to advance at all when KL was picking up some noise.
Rrather than a catastrophic failure, KL was there to save the day - My hero.
So Mr PSL - was this a car meeting your criteria for blowing up?
Care to post under your normal name???
Pete
12 February 2006, 11:39 PM
#218
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If you are genuinely trying to stop the newbies from "wasting" their money on this device, you are going about it the wrong way.
I can only assume you are using reverse psychology to make people think they DO need one - are you a shareholder PSL?
I know blownbigendz and don't blame him for using an alias
Jon
Newage owner complete with knocklink
I can only assume you are using reverse psychology to make people think they DO need one - are you a shareholder PSL?
I know blownbigendz and don't blame him for using an alias
Jon
Newage owner complete with knocklink
12 February 2006, 11:49 PM
#220
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Maybe they just don't want everyone to know what has happened to them but still wanted to share their experience with the community?
I don't think this makes them a coward...unlike name calling on an internet forum
I don't think this makes them a coward...unlike name calling on an internet forum
12 February 2006, 11:53 PM
#221
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Originally Posted by Rusty.
Maybe they just don't want everyone to know what has happened to them but still wanted to share their experience with the community?
I don't think this makes them a coward...unlike name calling on an internet forum
I don't think this makes them a coward...unlike name calling on an internet forum
I'm afraid that we cannot take seriously the words of a 1 post coward ....
What if I was to post as a newbie? Call myself 'Impreza ReBuilders' and post that CockLinks are total crap and I have seen engines destroyed by the knock sensor they use????????
You would be right to ignore the comments!!
The poster who will not post as themselves cannot carry any weight, sorry!
Pete
12 February 2006, 11:58 PM
#223
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Originally Posted by Rusty.
I bow to your superior 15,000 post count and quake at the knees of Bubba's 38,000 post count - you truely are the fonts of knowledge 
Pete
13 February 2006, 12:05 AM
#224
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I wonder how many genuine new members post once, suffer a response from an escapee from the hutch with a five figure post count and never return to this forum...
I still don't see the importance of the posters real identity - would you care any more if I said it was me? probably not but then we both know it isn't me so why should it matter who it is?
I still don't see the importance of the posters real identity - would you care any more if I said it was me? probably not but then we both know it isn't me so why should it matter who it is?
13 February 2006, 12:07 AM
#225
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Originally Posted by Bob Rawle
"You complete frigging idiot
The knock sensor does NOT listen at a TIMED sequence!!
It is listening steplessly, ie. all the time to all intents and purposes"
Load of b*ll*cks, the ecu will not react instantly, it has to hear the problem for a fixed (as in programmed into the ecu code) number of engine drive cycles (no not bikes Pete) before it does anything. That applies to ALL ecu's including yours David (Rannoch). And the interval settings are different for differing model years and models.
The ecu will only react under the above stated conditions within a span of rpm and engine load, outside that it does NOTHING, that includes rpms above 6000 rpm in most cases.
The knock sensor does NOT listen at a TIMED sequence!!
It is listening steplessly, ie. all the time to all intents and purposes"
Load of b*ll*cks, the ecu will not react instantly, it has to hear the problem for a fixed (as in programmed into the ecu code) number of engine drive cycles (no not bikes Pete) before it does anything. That applies to ALL ecu's including yours David (Rannoch). And the interval settings are different for differing model years and models.
The ecu will only react under the above stated conditions within a span of rpm and engine load, outside that it does NOTHING, that includes rpms above 6000 rpm in most cases.
I did consider replying, but much like you, decided getting involved in an internet flame war wasn't likely to enlighten certain entrenched views...
13 February 2006, 12:07 AM
#226
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Originally Posted by Rusty.
I wonder how many genuine new members post once, suffer a response from an escapee from the hutch with a five figure post count and never return to this forum...
A new member does NOT walk straight into the lions den of threads - do they now??
So, I'm sorry ...... the use of an alias is a cowardly act and should be treated as such!
Pete
13 February 2006, 12:10 AM
#228
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Originally Posted by Sprint Chief
Thanks for that Bob, Pete's comment was a reply to mine - in which I point out in very simple, engineering terms that his original claim - that the ecu monitors and adjusts many thousands of times a second - was complete rubbish. I note he is wriggling a bit now.
Pete
13 February 2006, 12:11 AM
#229
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Originally Posted by blownbigendz
As usual, when defeat looms you in the face, on come the diversionary clown tactics.
Still waiting for your "engineers" interpretation of my experience.
Still waiting for your "engineers" interpretation of my experience.
Pete
13 February 2006, 12:15 AM
#231
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Originally Posted by pslewis
Give your correct name, coward, and I will converse with you ........... until then, shut up and go to bed!
Pete
Pete
13 February 2006, 12:19 AM
#233
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Originally Posted by pslewis
Read post 198 .... and then come back and apologise
Pete
Pete
Oh and nano seconds! ROFLMAO! The knock signal, which comes around once every 20ms (assuming knocking on 1 cylinder at 6000 rpm) rings at around 6kHz on an impreza (the fundamental frequency caused by the ringing of the cylinder bore).
How much of a 6kHz signal were you planning to measure in "nanoseconds"? Have you ever heard of a bloke called "Nyquist"? He had a few things to say about that.
13 February 2006, 12:22 AM
#234
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Originally Posted by Sprint Chief
I did read 198. That's the post where you wriggle.
Oh and nano seconds! ROFLMAO! The knock signal, which comes around once every 20ms (assuming knocking on 1 cylinder at 6000 rpm) rings at around 6kHz on an impreza (the fundamental frequency caused by the ringing of the cylinder bore).
How much of a 6kHz signal were you planning to measure in "nanoseconds"? Have you ever heard of a bloke called "Nyquist"? He had a few things to say about that.
Oh and nano seconds! ROFLMAO! The knock signal, which comes around once every 20ms (assuming knocking on 1 cylinder at 6000 rpm) rings at around 6kHz on an impreza (the fundamental frequency caused by the ringing of the cylinder bore).
How much of a 6kHz signal were you planning to measure in "nanoseconds"? Have you ever heard of a bloke called "Nyquist"? He had a few things to say about that.
Surely to god you do NOT think the knock sensor only hears 'at certain times'??????
I accept your apology
Pete
13 February 2006, 12:35 AM
#235
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Originally Posted by pslewis
You do talk a load of claptrap!!
Surely to god you do NOT think the knock sensor only hears 'at certain times'??????
I accept your apology
Pete
Surely to god you do NOT think the knock sensor only hears 'at certain times'??????
I accept your apology
Pete
Originally Posted by Sprint Chief
I did consider replying, but much like you, decided getting involved in an internet flame war wasn't likely to enlighten certain entrenched views...
13 February 2006, 07:51 AM
#236
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we would try to talk about the subject Pete but 63 of the posts in this thread are from you. Please get a life!
Last edited by Gear Head; 13 February 2006 at 07:55 AM.
13 February 2006, 08:14 AM
#237
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Originally Posted by Rusty.
Maybe they just don't want everyone to know what has happened to them but still wanted to share their experience with the community?
I don't think this makes them a coward...unlike name calling on an internet forum
I don't think this makes them a coward...unlike name calling on an internet forum
I wouldn't have such a large postcount if I resorted to an alias every time I had something uncomfortable or controversial to say. Your friend might not be a coward, but what is the point of posting as a fake newbie?
13 February 2006, 08:42 AM
#238
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Originally Posted by pslewis
You said it was an old member hiding behind a newbie name ...... so, thats not the same as a genuine new member (of which it's obvious!!)
A new member does NOT walk straight into the lions den of threads - do they now??
So, I'm sorry ...... the use of an alias is a cowardly act and should be treated as such!
Pete
A new member does NOT walk straight into the lions den of threads - do they now??
So, I'm sorry ...... the use of an alias is a cowardly act and should be treated as such!
Pete
G.
13 February 2006, 08:42 AM
#239
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Originally Posted by Bubba po
I wouldn't have such a large postcount if I resorted to an alias every time I had something uncomfortable or controversial to say. Your friend might not be a coward, but what is the point of posting as a fake newbie?
13 February 2006, 09:00 AM
#240
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you lot are most scary! after 8 pages of insults and mouthing off between some of you I still havent got to the bottom of if a knocklink is of any use, I would ask questions but im to flippin scared!