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displaying posts 1 to 25 of 34
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| Author | Subject: Tapper?! updated/ better vid added |
 will130787
Seasoned Pro  Location: Reading Registered: 24 Sep 2009 Posts: 3,933 Status: Offline |
Post #1
How can I tell if my engine is a tapper rather than just the injectors etc? Is it loud or do you need the bonnet up with your head in there to hear it? Sorry if it's a dumbass question!________________________________________ Ex Astor 6 owner Also an Ex owner of a Bianca 6 Now an ex owner of a 2005 9-3 2.0T 210bhp Aero Swedish Saloon thing!! Soon to be 250bhp....  Now driving Mk5 Golf GTTdi, mile muncher But still live for the 306  |
 Posted 28th Jan 2010 at 17:43
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lwgti-6
Senior User  Location: Nottinghamshire Registered: 27 Oct 2008 Posts: 906 Status: Offline |
Post #2
If the tapping increases with the increase of engine rpm then it will more than likely be a tapper. Injectors tick ever so slightly. Better of getting a vid mate..________________________________________ EX Bianca 6 owner,Now drives: Octavia vRS |
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Posted 28th Dec 2009 at 18:59
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toby
Seasoned Pro  Location: Bourne Registered: 13 Dec 2007 Posts: 1,400 Status: Offline |
Post #3
TBH the best thing to do is buy or borrow a compression tester, screw it in place of each spark plug (remove the other leads so it doesn't start)then crank it over for a few seconds, you should have readings from each of the four cylinders all pretty much the same with a reading around 170. If you have even a slightly bent valve this would give a very different reading. Otherwise put a screwdriver to your ear and move it along the rocker cover whilst its running, if there is a bent valve you will get a harsh tapping noise roughly in the area of the bent valve. ________________________________________ Previous Peugeot - 2000(w)GTI-6, Me old China, Supercharged with working aircon! |
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Posted 28th Dec 2009 at 20:25
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darkgti6
Seasoned Pro  Location: Bracknell Registered: 07 Jun 2008 Posts: 1,358 Status: Offline |
Post #4
Also before performing the compression test pull the plug out of the fuel pump under a flap of carpet under the drivers side rear passenger seat. Dont need any fuel to perform a compression test  ________________________________________ Team Peugeot Sport 308 Gti�Black T'99 Gti - may she rest in peace - written off in a shunt on the A329m |
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Posted 28th Dec 2009 at 21:44
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will130787
Seasoned Pro Location: Reading Registered: 24 Sep 2009 Posts: 3,933 Status: Offline |
Post #5
Cheers fellas, a mate has a compression tester so will do this when I have a mo......________________________________________ Ex Astor 6 ownerAlso an Ex owner of a Bianca 6 Now an ex owner of a 2005 9-3 2.0T 210bhp Aero Swedish Saloon thing!! Soon to be 250bhp.... Now driving Mk5 Golf GTTdi, mile muncher But still live for the 306 |
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Posted 28th Dec 2009 at 21:47
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webster
Seasoned Pro  Location: Colchester Registered: 20 May 2007 Posts: 2,059 Status: Offline |
Post #6
A novice way of checking injectors is screwdriver on them and pop other end to your ear :p________________________________________ cress87 wrote: I'm stopped for speeding on a daily basis but now the police are aware that I live for the 306 they dare not interfere, just sit in their cars quaking as I drive past. |
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Posted 31st Dec 2009 at 17:05
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will130787
Seasoned Pro Location: Reading Registered: 24 Sep 2009 Posts: 3,933 Status: Offline |
Post #7
Thread revival! Finally done my compression check, these are the results from left to right cylinders: 180-192-183-195do they sound good?? ________________________________________ Ex Astor 6 ownerAlso an Ex owner of a Bianca 6 Now an ex owner of a 2005 9-3 2.0T 210bhp Aero Swedish Saloon thing!! Soon to be 250bhp.... Now driving Mk5 Golf GTTdi, mile muncher But still live for the 306 |
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Posted 23rd Jan 2010 at 22:16
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #8
Not as good as they should be IMO, get a video up of your engine ticking over, we will soon tell you if you have a bent valve or not.  Stan. ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone  |
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Posted 24th Jan 2010 at 18:39
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will130787
Seasoned Pro Location: Reading Registered: 24 Sep 2009 Posts: 3,933 Status: Offline |
Post #9
Ok will do that in the morning! She hasn't lost any power or pull that I can tell, what ideally should they be? Toby said it should read around 170, there all above....________________________________________ Ex Astor 6 ownerAlso an Ex owner of a Bianca 6 Now an ex owner of a 2005 9-3 2.0T 210bhp Aero Swedish Saloon thing!! Soon to be 250bhp.... Now driving Mk5 Golf GTTdi, mile muncher But still live for the 306 |
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Posted 24th Jan 2010 at 19:33
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #10
Ideally, anywhere between 195-220psi is a good healthy '6' engine. Stan. ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 24th Jan 2010 at 19:42
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will130787
Seasoned Pro Location: Reading Registered: 24 Sep 2009 Posts: 3,933 Status: Offline |
Post #11
Even so, they aren't miles apart from eachother so that suggests that I haven't got 1 poor cylinder?!________________________________________ Ex Astor 6 ownerAlso an Ex owner of a Bianca 6 Now an ex owner of a 2005 9-3 2.0T 210bhp Aero Swedish Saloon thing!! Soon to be 250bhp.... Now driving Mk5 Golf GTTdi, mile muncher But still live for the 306 |
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Posted 24th Jan 2010 at 19:50
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joevts
Senior User  Location: barnsley Registered: 21 May 2008 Posts: 608 Status: Offline |
Post #12
will130787 wrote: Even so, they aren't miles apart from eachother so that suggests that I haven't got 1 poor cylinder?! that's what i would have thought, unless you have a bent valve in each cylinder  |
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Posted 27th Jan 2010 at 00:23
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adam b
Seasoned Pro  Location: The Nam Registered: 24 Jan 2006 Posts: 12,828 Status: Offline |
Post #13
Depends if you had the throttle open as well. I guess the tapping hasn't gone after doing the plugs up again then? What oil is it running on?________________________________________ Nothing to see here |
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Posted 27th Jan 2010 at 00:38
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will130787
Seasoned Pro Location: Reading Registered: 24 Sep 2009 Posts: 3,933 Status: Offline |
Post #14
No I didnt have the throttle open, just turning over the engine! The noise has definately improved, think it could just do with a flush out with an oil change tbh. Its Castrol Magnatec Fully Synthetic 5w40 iirc________________________________________ Ex Astor 6 ownerAlso an Ex owner of a Bianca 6 Now an ex owner of a 2005 9-3 2.0T 210bhp Aero Swedish Saloon thing!! Soon to be 250bhp.... Now driving Mk5 Golf GTTdi, mile muncher But still live for the 306 |
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Posted 27th Jan 2010 at 19:44
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ryangti6
Seasoned Pro  Location: Pontypool Registered: 01 Sep 2006 Posts: 1,839 Status: Offline |
Post #15
As Stan said get a video up, unless you actually have someone who knows what they are listening for you wont really know without inspecting the head.The problem with doing a compression test is that in some cases the valve will still be sealing okay but just making a tap as it does so hence they usually run fine as tappers. ________________________________________ Ryan |
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Posted 27th Jan 2010 at 20:05
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will130787
Seasoned Pro Location: Reading Registered: 24 Sep 2009 Posts: 3,933 Status: Offline |
Post #16
It was my usual mechanic that looked at it, he's a spot on fella so I trust his judgement tbh. Will still do a vid and see what you guys think________________________________________ Ex Astor 6 ownerAlso an Ex owner of a Bianca 6 Now an ex owner of a 2005 9-3 2.0T 210bhp Aero Swedish Saloon thing!! Soon to be 250bhp.... Now driving Mk5 Golf GTTdi, mile muncher But still live for the 306 |
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Posted 27th Jan 2010 at 20:46
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buzzbrightyear
Seasoned Pro  Location: hiding all receipts for car Registered: 09 Jul 2008 Posts: 11,894 Status: Offline |
Post #17
toby wrote: 170??? more like 210-220 isnt it??TBH the best thing to do is buy or borrow a compression tester, screw it in place of each spark plug (remove the other leads so it doesn't start)then crank it over for a few seconds, you should have readings from each of the four cylinders all pretty much the same with a reading around 170. If you have even a slightly bent valve this would give a very different reading. Otherwise put a screwdriver to your ear and move it along the rocker cover whilst its running, if there is a bent valve you will get a harsh tapping noise roughly in the area of the bent valve. i did a test without opening the tyhrottle wide and it buggered my results up. ________________________________________ andrew315rawson@live.co.ukMoonstone phase 7 gti6 My Project thread: http://www.306gti6.com/forum/showthread.php?id=119992&page=1 |
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Posted 27th Jan 2010 at 21:00
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will130787
Seasoned Pro Location: Reading Registered: 24 Sep 2009 Posts: 3,933 Status: Offline |
Post #18
I did it exactly what toby said, just cranked it over! No throttle involved at all with all coil pack leads disconnected so it didnt fire!________________________________________ Ex Astor 6 ownerAlso an Ex owner of a Bianca 6 Now an ex owner of a 2005 9-3 2.0T 210bhp Aero Swedish Saloon thing!! Soon to be 250bhp.... Now driving Mk5 Golf GTTdi, mile muncher But still live for the 306 |
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Posted 27th Jan 2010 at 21:06
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will130787
Seasoned Pro Location: Reading Registered: 24 Sep 2009 Posts: 3,933 Status: Offline |
Post #19
I think i had my phone too close to the engine! Will do another tomo (sorry about it being dark) ________________________________________ Ex Astor 6 ownerAlso an Ex owner of a Bianca 6 Now an ex owner of a 2005 9-3 2.0T 210bhp Aero Swedish Saloon thing!! Soon to be 250bhp.... Now driving Mk5 Golf GTTdi, mile muncher But still live for the 306 |
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Posted 28th Jan 2010 at 00:07
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kit
Seasoned Pro  Location: Location: Location: Registered: 22 Jan 2009 Posts: 2,394 Status: Offline |
Post #20
My speakers aren't the greatest, but I can barely hear the tapping. Yes it increases slightly towards the end with the revs, but it sounds like the injectors to me.If it was a bent valve it would be much louder? ________________________________________ Racing driver, fighter pilot, astronaut, compulsive liar. |
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Posted 28th Jan 2010 at 00:14
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cooper666
Senior User  Location: doncaster Registered: 27 Nov 2009 Posts: 778 Status: Offline |
Post #21
sounds to me like big end bearings might just be on there way outseems to have a knocking more than tapping might be my crap laptop though ________________________________________ clio r27ps3 id:cooperkloe |
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Posted 28th Jan 2010 at 00:23
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will130787
Seasoned Pro Location: Reading Registered: 24 Sep 2009 Posts: 3,933 Status: Offline |
Post #22
Might be your laptop mixed with me filming it on an iPhone 1 inch away from the engine! Haha________________________________________ Ex Astor 6 ownerAlso an Ex owner of a Bianca 6 Now an ex owner of a 2005 9-3 2.0T 210bhp Aero Swedish Saloon thing!! Soon to be 250bhp.... Now driving Mk5 Golf GTTdi, mile muncher But still live for the 306 |
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Posted 28th Jan 2010 at 00:50
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cooper666
Senior User Location: doncaster Registered: 27 Nov 2009 Posts: 778 Status: Offline |
Post #23
will130787 wrote: Might be your laptop mixed with me filming it on an iPhone 1 inch away from the engine! Haha ________________________________________ clio r27ps3 id:cooperkloe |
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Posted 28th Jan 2010 at 00:53
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will130787
Seasoned Pro Location: Reading Registered: 24 Sep 2009 Posts: 3,933 Status: Offline |
Post #24
It is more of a knock than a tap! Just not massively sure what it was and immidiately got paranoid about tapping!________________________________________ Ex Astor 6 ownerAlso an Ex owner of a Bianca 6 Now an ex owner of a 2005 9-3 2.0T 210bhp Aero Swedish Saloon thing!! Soon to be 250bhp.... Now driving Mk5 Golf GTTdi, mile muncher But still live for the 306 |
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Posted 28th Jan 2010 at 01:03
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24seven
Seasoned Pro  Location: Derby Registered: 05 Oct 2005 Posts: 6,221 Status: Offline |
Post #25
If it was a big end knock you'd feel it through your feet while driving, and it would be a lot louder than that. That just sounds like a slightly noisey lifter to me, nothing untoward really. If you want to pinpoint which one it is try using a screwdriver as a stethoscope. get a long screwdriver, put the tip on the rocker cover roughly where each valve/cam lobe might be and press the handle hard into your ear closing the flap just in front of your hole (ooh err). You'll know what you're hearing when you hear it, trust me. Do this on top of the injectors as well if you want to listen to them. That doesn't sound like an injector ticking to me as it's a little slow, but then I'm not sure if the '6 uses batch injection fire or sequential. ________________________________________ Ph1 306 GTi 6 | RX8 231 S1 | YBR 125 Cafe Racer | MT-03 660 |
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Posted 28th Jan 2010 at 17:13
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