Post #26
yeah mine taps from start up. doesn't change when it gets warm/hot, it just taps all the time.it doesn't have to be bent by much to damage the valve guide (which is what I assume the tap noise is coming from?)
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| Author | Subject: Fixed -> Tapper or crank pulley slipped? |
 mikebee
Regular  Location: Northampton Registered: 17 Aug 2010 Posts: 122 Status: Offline |
it doesn't have to be bent by much to damage the valve guide (which is what I assume the tap noise is coming from?) |
 Posted 21st Sep 2010 at 01:26
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welshpug!
Capt Pedantic  Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,838 Status: Offline |
Post #27
I believe its the valve not seating concentrically that causes the noise, depends really how bent and worn the valve is there may not be damage to the guides.________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 21st Sep 2010 at 01:30
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maddriver9
Regular  Location: nr leek Registered: 12 Mar 2008 Posts: 341 Status: Offline |
Post #28
well mine only taps after about 10 mins if left running, it just seems to come in slowly getting louder till its the same as the vid________________________________________ 178bhp 205gti6¼ mile in 14.2 |
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Posted 21st Sep 2010 at 01:43
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mikebee
Regular Location: Northampton Registered: 17 Aug 2010 Posts: 122 Status: Offline |
Post #29
welshpug! wrote: I believe its the valve not seating concentrically that causes the noise, depends really how bent and worn the valve is there may not be damage to the guides. hmm that's interesting. i'll ask the machine shop when i take it in and see what they think. certainly makes sense. @maddriver - if you can get a vid up on here i'm sure these experienced guys can help figure out what's up. |
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Posted 21st Sep 2010 at 01:53
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720puggti
Seasoned Pro  Location: West London Registered: 18 Jan 2009 Posts: 1,069 Status: Offline |
Post #30
Hi Mike,I rebuilt my own engine and bent a couple of valves when re-timing the head. If you follow the link "work in west london" in my signature to my project thread you'll find pictures of the valves looking supremely straight, but after some measuring using a DTI and lathe it became apparent that 2 valves were bent, but you cannot see it by eye. Have a look and read and it'll answer any curious questions you may have... ________________________________________ Deepak Gohil |
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Posted 21st Sep 2010 at 04:37
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #31
Your crank definitely looks out of line if you have the camshafts pinned up... Looks like the pulley may of slipped. Stan. ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone  |
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Posted 21st Sep 2010 at 04:52
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mikebee
Regular Location: Northampton Registered: 17 Aug 2010 Posts: 122 Status: Offline |
Post #32
stan_306gti6 wrote: Your crank definitely looks out of line if you have the camshafts pinned up... Looks like the pulley may of slipped. Stan. Thanks Stan. It's useful to get more opinions. I am guessing that when the pulley slips and goes unnoticed people put the belt on with a tooth out? |
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Posted 21st Sep 2010 at 13:43
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welshpug!
Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,838 Status: Offline |
Post #33
it varies, really depends how far out it has moved.I dont get how they manage it though, I always pin up before taking the belt off. ________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 21st Sep 2010 at 20:36
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jeffers
Forum Admin Location: Leeds Registered: 14 Dec 2003 Posts: 3,702 Status: Offline |
Post #34
I can understand how you manage it as did it myself, mine was pinned up but the vernier was seized so I had to remove it meaning the cam sprung forward, knowing what I know now I should of found a way to turn the cam back, but stupidly I turned a full rev causing valve contact on overlap bending at least 2 valves but not by eye, it's so easily done if your not mega careful!  ________________________________________ Team Running Engine again!Team Negative Camber! My Budget track engine build thread! Now appearing at a Trackday near you!!  |
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Posted 21st Sep 2010 at 20:42
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mikebee
Regular Location: Northampton Registered: 17 Aug 2010 Posts: 122 Status: Offline |
Post #35
welshpug! wrote: it varies, really depends how far out it has moved. I dont get how they manage it though, I always pin up before taking the belt off. I think people just don't look or they don't register that anything is wrong when they put the new belt on and the timing hole doesn't line up.... |
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Posted 21st Sep 2010 at 23:01
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maddriver9
Regular Location: nr leek Registered: 12 Mar 2008 Posts: 341 Status: Offline |
Post #36
i rang my motor sport mate to day, he told me that mine could not be a bent valve as it didnt tap from start up.he told me to change the oil and filter as it was most probs a lifter sticking, hay presto no more tapping. hope you have as good as luck as me mikebee ________________________________________ 178bhp 205gti6¼ mile in 14.2 |
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Posted 22nd Sep 2010 at 02:12
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #37
jeffers wrote: knowing what I know now I should of found a way to turn the cam back, but stupidly I turned a full rev causing valve contact I am sure many of us have done this over the years as the knowledge is built up. ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 22nd Sep 2010 at 02:38
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paul_13
Senior User  Location: Reading Registered: 10 Dec 2008 Posts: 693 Status: Offline |
Post #38
I was quite lucky not to time my engine using my pulley, it had slipped almost 180 degrees.You can use a 205 8v pulley to time the engine, the timing hole is in the same place as 6. Once everything is timed up take the 8v pulley off and use the 6 pulley. I most definately would not time the engine up using a 6 pulley again ________________________________________ 205 GTI6- Rebuilt engine, lightened flywheel, lightened pulley, 307 hdi brakes, Koni struts on gravel spec springs, 22mm TB's, 24mm ARB, Roll cage, Citreon ZX rear dampers, SL434's, Xsara box, Quickrack, Pipercross enclosed induction kit. Private work, not a prob |
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Posted 22nd Sep 2010 at 02:45
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davedgti6
Seasoned Pro  Location: whiston, prescot Registered: 28 May 2006 Posts: 1,651 Status: Offline |
Post #39
Best off getting a lightened solid pulley, you know then its right and you get the advantages of the lighter pulley and piece of mind for subsequent belt changes ________________________________________ Team Supercharged Gti-6™ |
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Posted 22nd Sep 2010 at 03:01
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mikebee
Regular Location: Northampton Registered: 17 Aug 2010 Posts: 122 Status: Offline |
Post #40
UpdateGot the cylinder head off the car today. Can confirm that getting the exhaust manifold off is a complete nightmare! Hands and wrists cut to shreds  Stripped head and will take it to my local machine shop for inspection tomorrow. Fingers crossed not too much damage. The cambelt kit I got from GSF is an 'Inna' kit. Not heard of this manufacturer before - are they okay? It's the 136 tooth belt. |
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Posted 27th Sep 2010 at 00:50
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welshpug!
Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,838 Status: Offline |
Post #41
O.E manufacturer  ________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 27th Sep 2010 at 00:55
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Rich E
Forum Admin Location: Hertfordshire Registered: 27 Apr 2005 Posts: 7,757 Status: Offline |
Post #42
Yeah, they are fine. Peugeot use INA tensioners in most of their own cambelt kits.________________________________________ Rich |
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Posted 27th Sep 2010 at 00:56
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mikebee
Regular Location: Northampton Registered: 17 Aug 2010 Posts: 122 Status: Offline |
Post #43
Cool that's good news. The belt I took off is a Gates powergrip. Heard bad things about these... |
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Posted 27th Sep 2010 at 01:02
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Rich E
Forum Admin Location: Hertfordshire Registered: 27 Apr 2005 Posts: 7,757 Status: Offline |
Post #44
No, there's nothing wrong with gates belts.________________________________________ Rich |
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Posted 27th Sep 2010 at 01:31
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #45
Rich E wrote: No, there's nothing wrong with gates belts. Agreed, I have tended to use Gates belts for years.... ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 27th Sep 2010 at 12:28
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mikebee
Regular Location: Northampton Registered: 17 Aug 2010 Posts: 122 Status: Offline |
Post #46
Update from machine shop today on the cylinder head refurbish.Two inlet valves were bent. All the exhaust valve guides and seats are worn. It sounds like the engine has been running for some time with worn valve guides and this has damaged the valve seats, so they have to re-cut them. Also having a light skim. Does this all sound pretty normal/sensible? Cost is very good. They're charging £200 all in, which seems pretty reasonable. Let's hope it runs properly when put back together! |
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Posted 30th Sep 2010 at 01:23
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welshpug!
Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,838 Status: Offline |
Post #47
sounds pretty reasonable, I pay £100 at my local specialist for a hot clean + inspection + pressure test + fit new stem seals and a Skim.A valve would be about a tenner each, plus the machine time to sort the valve seats. ________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 30th Sep 2010 at 01:32
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mikebee
Regular Location: Northampton Registered: 17 Aug 2010 Posts: 122 Status: Offline |
Post #48
cool. they said about £8.50 per valve and £40 total for the guides plus the machining time.they also said that because they're cutting the seat back they will have to grind the valve length back in order to match the preload on the lifter. not heard of anyone doing this before. does that sound okay too? |
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Posted 30th Sep 2010 at 01:34
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mikebee
Regular Location: Northampton Registered: 17 Aug 2010 Posts: 122 Status: Offline |
Post #49
update. got the head back yesterday and started fitting it all back together.have put the cams in as per the engine manual elsewhere in here, but the timing pin slots are miles out and i can't figure out how to rotate the cams to time them before i pop the head back in the car... it does look like the engine manual (uploaded by deepak) is for the earlier cam sprockets with 3 bolts. mine only has one central bolt. also the identification of the cams and sprockets looks different. the sprockets are identical on mine. is this normal? not sure what to do next. i was hoping to get this all back together this weekend, but now i am just scratching my head |
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Posted 2nd Oct 2010 at 22:55
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mikebee
Regular Location: Northampton Registered: 17 Aug 2010 Posts: 122 Status: Offline |
Post #50
Got it all back together over the last week and a half. Started first time. Was worried at first as the tap still seemed to be there (!) but was just the hydraulic tappets filling up.Have now given it a good few runs. Feels much better than before and not a tap in sight! Horray! |
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Posted 18th Oct 2010 at 01:01
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