1.8 rattle on rev down

201964 · 21st December 2011, 20:33

When I accelerate the engine and then release the throttle, the engine rattles in the camshaft area, what does this signify?

chrissyboy · 21st December 2011, 21:09

when was the timing belt last changed ?.

PEPPER953 · 21st December 2011, 22:00

if it does this at standstill I would be thinking little ends

chrissyboy · 21st December 2011, 22:03

sounds like a tensioner to me .

201964 · 22nd December 2011, 20:47

Head gasket just changed 10k miles after last head gasket change. New belt and tensioner fitted 10k ago. I'm thinking more like hydraulic tappets or camshafts. Belt and tensioner all set up by book. Anyone experience of this. The sound appears like from head-camshaft area.

chrissyboy · 22nd December 2011, 21:20

Quote:

Originally Posted by 201964

Head gasket just changed 10k miles after last head gasket change. New belt and tensioner fitted 10k ago. I'm thinking more like hydraulic tappets or camshafts. Belt and tensioner all set up by book. Anyone experience of this. The sound appears like from head-camshaft area.

cam pulley .get someone to rev it as you look at the pulley .see if you notice any wobble . mind you i would of thought the light would flicker as the wobbe would make the cam sensor panic .... it could be a tapet not getting an oil feed .

PEPPER953 · 22nd December 2011, 22:03

does noise go off if a constant throttle is applied than when
backed off reappear?

201964 · 23rd December 2011, 19:15

Quote:

Originally Posted by PEPPER953

does noise go off if a constant throttle is applied than when
backed off reappear?

Noise goes off when constant throttle, then as you say backing off it re-appears

PEPPER953 · 23rd December 2011, 21:35

little ends poss a liner moving without hearing it can't be 100%
but sounds about right
Any other folks thoughts?

21st December 2011, 20:33	#1
201964 Newbie Rover 75 Saloon Join Date: Oct 2010 Location: Eglinton Posts: 14 Thanks: 0 Thanked 0 Times in 0 Posts	1.8 rattle on rev down When I accelerate the engine and then release the throttle, the engine rattles in the camshaft area, what does this signify?

21st December 2011, 21:09	#2
chrissyboy This is my second home lovely little ford focus. Join Date: Jul 2009 Location: East Dulwich Posts: 7,877 Thanks: 2 Thanked 82 Times in 68 Posts	when was the timing belt last changed ?. __________________ [ I'm really confused. -I keep dreaming I'm an insomniac

21st December 2011, 22:03	#4
chrissyboy This is my second home lovely little ford focus. Join Date: Jul 2009 Location: East Dulwich Posts: 7,877 Thanks: 2 Thanked 82 Times in 68 Posts	sounds like a tensioner to me . __________________ [ I'm really confused. -I keep dreaming I'm an insomniac

21st December 2011, 22:00	#3
PEPPER953 Avid contributor Rover75 Join Date: Jul 2011 Location: west mids Posts: 234 Thanks: 0 Thanked 0 Times in 0 Posts	if it does this at standstill I would be thinking little ends

22nd December 2011, 20:47	#5
201964 Newbie Rover 75 Saloon Join Date: Oct 2010 Location: Eglinton Posts: 14 Thanks: 0 Thanked 0 Times in 0 Posts	Head gasket just changed 10k miles after last head gasket change. New belt and tensioner fitted 10k ago. I'm thinking more like hydraulic tappets or camshafts. Belt and tensioner all set up by book. Anyone experience of this. The sound appears like from head-camshaft area.

22nd December 2011, 22:03	#7
PEPPER953 Avid contributor Rover75 Join Date: Jul 2011 Location: west mids Posts: 234 Thanks: 0 Thanked 0 Times in 0 Posts	does noise go off if a constant throttle is applied than when backed off reappear?

23rd December 2011, 21:35	#9
PEPPER953 Avid contributor Rover75 Join Date: Jul 2011 Location: west mids Posts: 234 Thanks: 0 Thanked 0 Times in 0 Posts	little ends poss a liner moving without hearing it can't be 100% but sounds about right Any other folks thoughts?