engine noise while starting!! Hydraulic tappets??

charca0 · 04-07-2005, 22:26

Hello all,

A question for the mechanically minded.

Firstly, powerpack is the 12v 1.2l 47kw type. I am trying to identify a sort of fluttering noise, for want of a better word during the initial moments while engine is being started. For some time the main suspect are the Hydrualic tappets.

How is the hydraulic tappets Hydraulic tappets oil pressure handled in these type of engines?. Is the system depressurized after engine is stopped or is it kept under pressure?. If so it would explain the noise with `loose` valves while the system is pumped up to pressure after engine is started!

How exactly does it all work??

Cheers,

Charles

Fabia 12v · 04-07-2005, 23:09

yeah i get this... although not on every start mind.

Lummox · 04-07-2005, 23:11

The noise on the 1.2 comes from the hydraulic tensioner on the cam chain, normal and nowt to worry about.

Fabia 12v · 04-07-2005, 23:17

Quote:

Originally Posted by Lummox

The noise on the 1.2 comes from the hydraulic tensioner on the cam chain, normal and nowt to worry about.

Mull3tt · 04-07-2005, 23:23

was goin post sommet bout this other day but 4got, my 1.4 sounds like a diesel when it starts, lol

charca0 · 14-07-2005, 04:55

Thanks lummox and all!!

04-07-2005, 22:26	#1
charca0 Briskodian Join Date: Apr 2004 Posts: 23 Members Car: Thanks: 0 Thanked 0 Times in 0 Posts	engine noise while starting!! Hydraulic tappets?? Hello all, A question for the mechanically minded. Firstly, powerpack is the 12v 1.2l 47kw type. I am trying to identify a sort of fluttering noise, for want of a better word during the initial moments while engine is being started. For some time the main suspect are the Hydrualic tappets. How is the hydraulic tappets Hydraulic tappets oil pressure handled in these type of engines?. Is the system depressurized after engine is stopped or is it kept under pressure?. If so it would explain the noise with `loose` valves while the system is pumped up to pressure after engine is started! How exactly does it all work?? Cheers, Charles

04-07-2005, 23:09	#2
Fabia 12v RICHARD Join Date: Apr 2005 Location: Twickenham - Middlesex Posts: 5,026 Members Car: Skoda Fabia >> VW Golf >> Seat Ibiza >> VW Polo Thanks: 11 Thanked 26 Times in 23 Posts	yeah i get this... although not on every start mind. __________________ First Car: Skoda Fabia MK1 1.2 12v Comfort Replaced with: Volkswagen Golf MK4 GT 1.9TDI Replaced with: Seat Ibiza MK4 Sport 1.9TDI Replaced with: Volkswagen Polo MK6 Ltd. Edition Sport 1.4 16v

04-07-2005, 23:11	#3
Lummox Cupra Bush King Join Date: Sep 2003 Location: Newport Pagnell Posts: 22,458 Members Car: Mk2 Golf GTi 16v and building a 20VT MK2. Images: 2 Thanks: 22 Thanked 753 Times in 633 Posts	The noise on the 1.2 comes from the hydraulic tensioner on the cam chain, normal and nowt to worry about. __________________ www.unit18.co.uk Remapping Service now available, PM for details.

14-07-2005, 04:55	#6
charca0 Briskodian Join Date: Apr 2004 Posts: 23 Members Car: Thanks: 0 Thanked 0 Times in 0 Posts	Most reassuring!! Thanks lummox and all!!

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04-07-2005, 23:23	#5
Mull3tt Briskodian Join Date: May 2005 Location: Stoke-on-Trent Posts: 87 Members Car: Fabia 1.4 Comfort Thanks: 0 Thanked 0 Times in 0 Posts	was goin post sommet bout this other day but 4got, my 1.4 sounds like a diesel when it starts, lol

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engine noise while starting!! Hydraulic tappets??

engine noise while starting!! Hydraulic tappets??

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