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displaying posts 1 to 22 of 22
| Author | Subject: draining hydraulic lifters? |
 bas_306gti
Regular  Location: Eindhoven Registered: 06 Sep 2012 Posts: 108 Status: Offline |
Post #1
Hi,Is it necessary to drain the hydraulic lifters from oil, before assembly on a GTi engine? Or can you put the head back together without removing the oil inside the high pressure chamber inside the lifter. I'm using the same valves, cams etc. , the valves however were lapped in. Greetings, Bas |
 Posted 6th Sep 2012 at 21:03
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #2
You should drain the lifters if they have been removed.  You don't HAVE to, but it is proper practice.  ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone  |
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Posted 6th Sep 2012 at 21:16
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bas_306gti
Regular Location: Eindhoven Registered: 06 Sep 2012 Posts: 108 Status: Offline |
Post #3
I'm asking this because they are almost impossible to take apart, the piston inside the lifter just doesn't come out.Is there a way to drain them and not taking them apart? |
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Posted 6th Sep 2012 at 21:33
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #4
bas_306gti wrote: Is there a way to drain them and not taking them apart?  You will need to separate the piston from the bucket. The majority of the time you can 'shock' the piston out, by impacting the open end of the bucket onto a flat surface (table/workbench) with your hand, and the lifter itself will fall out. When you do this though, I recommend laying some rags on the flat surface so as not to damage the bucket.  ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 6th Sep 2012 at 21:46
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coskev
Seasoned Pro  Location: Oswestry Registered: 01 Nov 2009 Posts: 3,132 Status: Offline |
Post #5
I found putting them in the vice,and pulling the centre out with pliers easiest Sure I've told u this on 205 drivers  ________________________________________ Red GTB1756 powered Fabia VRS daily driver,LBSC Gti6 eater........Mac1 ZR R1 kit car build in progress. |
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Posted 6th Sep 2012 at 22:28
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welshpug!
Capt Pedantic  Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,838 Status: Offline |
Post #6
yup, there is an echo in here  ________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 6th Sep 2012 at 22:42
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bas_306gti
Regular Location: Eindhoven Registered: 06 Sep 2012 Posts: 108 Status: Offline |
Post #7
Yes you gave me that advice on 205gti drivers.The opinions on whether to bleed these lifters seem to be different, so I thought I ask the opinions here. Thanks for the advice, I'll give it a try. |
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Posted 6th Sep 2012 at 22:44
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coskev
Seasoned Pro Location: Oswestry Registered: 01 Nov 2009 Posts: 3,132 Status: Offline |
Post #8
bas_306gti wrote: Yes you gave me that advice on 205gti drivers. The opinions on whether to bleed these lifters seem to be different, so I thought I ask the opinions here. Thanks for the advice, I'll give it a try. It states on the Autodata system that lifters should be drained when cams are removed,so thats why I did it ________________________________________ Red GTB1756 powered Fabia VRS daily driver,LBSC Gti6 eater........Mac1 ZR R1 kit car build in progress. |
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Posted 7th Sep 2012 at 10:30
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chris with a pug
Seasoned Pro  Location: Southampton Registered: 16 Feb 2003 Posts: 5,366 Status: Offline |
Post #9
I drained mine with a G clamp. There was a guide around somewhere.Just use a set of soft jaw clamps or a bit of cloth and push the piston in until they compress. This also helps free them up if they are seized. |
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Posted 7th Sep 2012 at 12:03
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #10
You can stick them in a vice also, as long as you wrap the bucket in rags to avoid damaging the sides of it. You should drain the lifters when the cams are removed in order to allow them to pump up on inital startup and run at the correct valve clearance. ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 7th Sep 2012 at 12:24
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armzsc6
Seasoned Pro  Location: Crowborough Registered: 22 Mar 2008 Posts: 3,445 Status: Offline |
Post #11
Have built these heads up with drained lifters and with full ones and havnt really noticed a difference either way. But then I always crank the engine over quite a few times with injectors unplugged to get oil round before starting etc. all still tap for a little while till all the air is gone from the lifters then lovely silence . And some sets I've found the pistons are pretty mug impossible to remove and others come out easy...________________________________________ Black power baby! SUUUUUPERCHARGED Seat Leon FR TDI 190BHP 300lbft daily gti-6 killer :p 12x 306's owned so far Cambelts, clutches, service work carried out on All makes and models, Peugeot Citroen / mitsubishi specialist. Pug planet / Citroen Lexia diagnostics / code reads available. |
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Posted 11th Sep 2012 at 23:12
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bas_306gti
Regular Location: Eindhoven Registered: 06 Sep 2012 Posts: 108 Status: Offline |
Post #12
Had to tap very hard on a wooden block but eventually the pistons came loose from the buckets...  |
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Posted 14th Sep 2012 at 20:51
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pete_rallye
Seasoned Pro  Location: Yorkshire Registered: 12 Dec 2002 Posts: 5,253 Status: Offline |
Post #13
If you warm them up first (chuck them in some hot water) it causes the oil to thin out and makes them easier to either take to pieces or squeeze the oil out. For what its worth, I usually just squeeze the piston, literally a small drop of oil will come out and that is all. ________________________________________ Oulton Park in a BTCC 306 vid 1Oulton Park in a BTCC 306 vid 2 Lap of the 'ring |
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Posted 14th Sep 2012 at 21:10
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #14
Glad to see you managed it ok, good luck with the rest of the rebuild. ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 15th Sep 2012 at 09:51
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tonyst
Newbie  Location: preston Registered: 12 Sep 2012 Posts: 24 Status: Offline |
Post #15
pete_rallye wrote: If you warm them up first (chuck them in some hot water) it causes the oil to thin out and makes them easier to either take to pieces or squeeze the oil out. For what its worth, I usually just squeeze the piston, literally a small drop of oil will come out and that is all. What a great tip. I've been struggling for ages until I read that today. Came out dead easily. |
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Posted 15th Sep 2012 at 19:15
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #16
Yes, that was a good tip as when you heat them up they expand a little and allow the piston to be freed easier. ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 16th Sep 2012 at 07:23
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Matt_rallye
Regular Location: Bournemouth Registered: 09 Jul 2012 Posts: 468 Status: Offline |
Post #17
Is there a guide for compressing them to drain? One of my lifts is f**ked and cause tapping. So replacing with a decent known working set |
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Posted 16th Sep 2012 at 09:04
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bas_306gti
Regular Location: Eindhoven Registered: 06 Sep 2012 Posts: 108 Status: Offline |
Post #18
I found this one, it's about the MI16 heads but the lifters are the same:http://www.taylor-eng.com/16v_head/16v_head.htm |
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Posted 16th Sep 2012 at 10:18
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Matt_rallye
Regular Location: Bournemouth Registered: 09 Jul 2012 Posts: 468 Status: Offline |
Post #19
Pretty decent guide. Cheers for that mate |
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Posted 16th Sep 2012 at 11:16
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #20
Matt_rallye wrote: Is there a guide for compressing them to drain? One of my lifts is f**ked and cause tapping. So replacing with a decent known working set Are you sure it's a lifter causing the tapping and not a bent valve? ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 16th Sep 2012 at 11:18
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Matt_rallye
Regular Location: Bournemouth Registered: 09 Jul 2012 Posts: 468 Status: Offline |
Post #21
Yeah it's a re con head, had valves out and checked, skimmed and pressure testedWhen it was first started was horrible, but then went completely. Then while it was left over night it came back. Going to replace for a cleaned up set of known lifters and see how it is |
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Posted 16th Sep 2012 at 11:21
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #22
Fair enough, it does sound like you've got a dodgy one then. ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 16th Sep 2012 at 11:27
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