Tapperty Engine or Pulley Slap

Arctic2 · Feb 3, 2015

I have noticed over the last week that from start up and when warmed up the Fl 1 TD4 seems to be a bit more noisy more tapperty or is it the crankshaft slapping showing me signs of wear, what do members think please take a look at the video I have attached.

Also the FBH is running even when the engine as warmed up I need to get this looked at too, all opinions welcome cheers Arctic2

http://www.youtube.com/watch?v=5AASg2_kWJI

GrumpyGel · Feb 4, 2015

Once again I find myself listening to noises over the tap-tap-tap of a Freelander diesel engine.

I am though currently confined by a straight jacket and this is all my minder will type for me.

teddywood1 · Feb 4, 2015

has it had an oil change lately I find when it is coming time for oil change they do get a little noisy

hd3 · Feb 4, 2015

I have noticed over the last week that from start up and when warmed up the Fl 1 TD4 seems to be a bit more noisy more tapperty

listened to the vid twice ( through a hi fi stereo )
er .. sounds normal to moi ..
i.e. didn't hear any odd mechanical tapperty noises ..

all i could hear was the usual diesel knock sound ..

GrumpyGel · Feb 4, 2015

In case you haven't read it see (from yesterday)...

http://www.landyzone.co.uk/lz/f9/noise-timing-aux-belt-end-l-series-engine-273064.html#post3378754

hd3 · Feb 4, 2015

In case you haven't read it see (from yesterday)...

Noise from Timing/Aux belt end of L Series engine

@ moi ????

~~~~~

mmm .. had a listen .. apart from some belt squeal ..
( as mentioned in that thread ) ..
only ???? sound was a ticking/clicking noise .. around 0.54/0.56 in the vid ..

thing is .. i've no reference as to what a healthy L-Series is supposed to sound like ..
have heard 2 as they passed by when i was parked up ..
'n i thought .. yeah they sound like a smaller version of diesels i'd driven in the late 70's ( hgv ) .. 'n as to that .. They all sounded different .. Cat sounds different to a Cummins .. and the 2-stroke Detroits ( GMC ) sound alltogether different ..
took me a while to figure the ball-bearings-in-a-tin-can sound on an idling Cat
was in fact the timing chain attached to the overhead camshaft .. would go silent under load ..
squealing belts aside .. only uh-oh sound i've heard was a crankshaft bearing failing .. on a 450 bhp Cat .. was a muted rumbling sound that got slowly a bit louder after a coast-to-coast trip usa .. about 1800 miles or so ..

anyhow .. engine video sound is going to be difficult to suss .. many factors
frequency response/quality of recording device .. engine bay accoustics ..
quality of playback device .. .. vid.sound compression .. etc etc ..
plus some sort of reference as to what a good sounding engine of recorded type is supposed to sound like ..
e.g .. L-series and TD4 are very different in design .. injection type ..
combustion chamber shape .. so on and so forth ..

can imagine being driven nuts trying to suss 'that-odd-new-sound'

))

~~~~~~~

i've got a ticking sound in mine .. has always been there .. only noticable at idle 'n very low rpm .. came to the conclusion it's the vacuum pump ..
hasn't got any louder .. just part of my td4's general noise ..

squealing belts on mine were a bit of moisture on the belt ..
well .. spilt windscreen wash liquid :-/

ps used to squeal on 1 particular tight left hand corner
( not on any other corner .. just that one )
don't do it anymore .. why?? .. i've no idea ..

only Just figured out one annoying buzz in my cab at certain rpm ..
be the on dash cup-holder ..
and if i can figure how to stop the roof-window-panel handles from ratting ..
i'll be less prone to outbursts of irritation mid trip .. ;-)

best of luck with yer engine noises GG ..
btw: meant to reply .. ages ago .. to you .. on a vcu thread re checking temps
yeah i tried to figure a way of keeping an eye on the vcu temp whilst driving
i.e. an in cab temp readout ..
now figured easiest way might be a temp sensor for the rear-diff ..
'cause if the vcu starts to go stiff .. it's bound to cause stress and a temp. rise in the rear diff oil .. methinks ..
( i.e. a temp readout for the rear diff oil is relatively simple )

GrumpyGel · Feb 5, 2015

Great Reply

If this engine noise was an 'actual thing' - I'd shoot the f***er - the only other option is to shoot the engine, and that's rather drastic and might cause more problems!

Maybe I should install a 450HP Cat - then I could come to you for advice

When I listen to the YouTube vid - the sound is there and the replication spot on - although I also took a vid after the cambelt change and the replication isn't so good there.

I'm pretty sure what I hear isn't belt squeal as I hear it without the drive/aux belt installed and now with 2 different cambelts. Grrr.

This experience has been a real eye opener for me. I'm amazed how a reasonably sane person (me) can hear something something that loads of other sane people can't - maybe they are all mad - it can't be me because I discussed it with myself and we agreed we are sane

The engine squealing on 1 particular corner is classic

If I can't find anyone who can hear what I hear, at least I'm glad I've found someone who thinks a temp sensor on the rear diff (or my thought the IRD) as close to the bearing that takes the main hit from VCU/transmission wind up is a good idea. It makes perfect sence - the diff/IRD going is basically the bearings getting worn down through too much stress - in wearing it down, it will create a lot of heat that must be detectable. If I ever get an IRD with crown/pinion gears in my Freelander, I'll definitely fit something like that. A simple Arduino type setup would be fine and cheap.

Anyhow, already hijacked a TD4 thread to an L Series one (apologies!) best not hijack it again into a VCU one - if the man with hats, or a real life Hippo, or any of the Scandinavian VCU fixing mob, or all and sundry coming along .... it'll never end !!!

hd3 said:
@ moi ????

~~~~~

mmm .. had a listen .. apart from some belt squeal ..
( as mentioned in that thread ) ..
only ???? sound was a ticking/clicking noise .. around 0.54/0.56 in the vid ..

thing is .. i've no reference as to what a healthy L-Series is supposed to sound like ..
have heard 2 as they passed by when i was parked up ..
'n i thought .. yeah they sound like a smaller version of diesels i'd driven in the late 70's ( hgv ) .. 'n as to that .. They all sounded different .. Cat sounds different to a Cummins .. and the 2-stroke Detroits ( GMC ) sound alltogether different ..
took me a while to figure the ball-bearings-in-a-tin-can sound on an idling Cat
was in fact the timing chain attached to the overhead camshaft .. would go silent under load ..
squealing belts aside .. only uh-oh sound i've heard was a crankshaft bearing failing .. on a 450 bhp Cat .. was a muted rumbling sound that got slowly a bit louder after a coast-to-coast trip usa .. about 1800 miles or so ..

anyhow .. engine video sound is going to be difficult to suss .. many factors
frequency response/quality of recording device .. engine bay accoustics ..
quality of playback device .. .. vid.sound compression .. etc etc ..
plus some sort of reference as to what a good sounding engine of recorded type is supposed to sound like ..
e.g .. L-series and TD4 are very different in design .. injection type ..
combustion chamber shape .. so on and so forth ..

can imagine being driven nuts trying to suss 'that-odd-new-sound' ))

~~~~~~~

i've got a ticking sound in mine .. has always been there .. only noticable at idle 'n very low rpm .. came to the conclusion it's the vacuum pump ..
hasn't got any louder .. just part of my td4's general noise ..

squealing belts on mine were a bit of moisture on the belt ..
well .. spilt windscreen wash liquid :-/

ps used to squeal on 1 particular tight left hand corner
( not on any other corner .. just that one )
don't do it anymore .. why?? .. i've no idea ..

only Just figured out one annoying buzz in my cab at certain rpm ..
be the on dash cup-holder ..
and if i can figure how to stop the roof-window-panel handles from ratting ..
i'll be less prone to outbursts of irritation mid trip .. ;-)

best of luck with yer engine noises GG ..
btw: meant to reply .. ages ago .. to you .. on a vcu thread re checking temps
yeah i tried to figure a way of keeping an eye on the vcu temp whilst driving
i.e. an in cab temp readout ..
now figured easiest way might be a temp sensor for the rear-diff ..
'cause if the vcu starts to go stiff .. it's bound to cause stress and a temp. rise in the rear diff oil .. methinks ..
( i.e. a temp readout for the rear diff oil is relatively simple )

Arctic2 · Feb 5, 2015

teddywood1 said:
has it had an oil change lately I find when it is coming time for oil change they do get a little noisy

Hi teddywood, I bought my FL1 first for me on 16/10/14 since then I have changed the oil twice, the first change was 27/10/14 the day after I had changed the air, fuel, manifold, EGR MAP Sensor and the fuel injector T joints to brass, I ran it for a month on that oil change using is a flushing sequence, it was then changed again on the 21/11/14 both times using good quality 10/40 semi syn oil, I do this to all car I purchase and I change the oil twice a year weather I do 10000 miles or just 4000 miles spring and winter.

I also change the belts and I will shortly be changing all the mounts and including the lower engine mount which I think is past it's best that is for another thread, cheers Arctic2

Tapperty Engine or Pulley Slap

Arctic2

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GrumpyGel

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teddywood1

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hd3

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GrumpyGel

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hd3

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GrumpyGel

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Arctic2

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