Got very noisy tappets when engine is hot, suspect blocked followers.
anybody else had this problem on a 1.8 stilo?
anybody else had this problem on a 1.8 stilo?
Technical noisy hydraulic tappets
- Thread starter fredster
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noisy hydraulic tappets
If the tappets were at fault would the problem not be more apparently when the engine/oil was cold?
StiloSport
Member
Yup, problem shoud be more apparent when the engine is cold. If the engine doesn't make that kind of noise when cold, it's unlikely to be the tappets.
Does anyone elses 1.6 sound like a tractor for a few seconds after its been turned on???
StiloSport
Member
paulmacs said:
Not like a tractor but noisy tappets for about 30secs, yeah!
OP
OP
Hydraulic followers can be noisy ven when hot, oil becomes too thin reducing pressure inside follower. Spoke to Fiat today, they have heard oproblem. said they will try different oil. May have to start telling them that I am actually an engine technician!
euan
New member
My 1.8 dynamic (petrol) sounds like an old diesel hackney taxi always has, probably always will. Don't know if that helps your case any...
It's epecially bad starting from cold, or if I've tanked it down the motor way at 90, stopped, then started it 15 minutes later. I always thought that it was that crap italian pizza oil they put in it. Maybe lacking in the viscous department.
Don't know if that helps your case any...It's epecially bad starting from cold, or if I've tanked it down the motor way at 90, stopped, then started it 15 minutes later. I always thought that it was that crap italian pizza oil they put in it. Maybe lacking in the viscous department.
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OP
OP
Just got my car back from the dealers, they fixed gearbox oil leak, no questions asked.
They replaced oil with fiat recommended oil, (selinia) excuse the spelling.
Guess what. no more tappet noise - fantastic.
praise where praise is due, Arnold Clark in Elgin were really good for a change, service manager couldn't have been more helpful!!!
They replaced oil with fiat recommended oil, (selinia) excuse the spelling.
Guess what. no more tappet noise - fantastic.
praise where praise is due, Arnold Clark in Elgin were really good for a change, service manager couldn't have been more helpful!!!
the 1.8 is a very silent engine and if you have a 1.8 which makes that noise then you have a broken timing-variator which needs to be replaced
once this part is changed the engine is very silent also at start up
many 1.8 had a bad variator mounted and this was a japanese part of the engine
guaranteed solution
once this part is changed the engine is very silent also at start up
many 1.8 had a bad variator mounted and this was a japanese part of the engine
guaranteed solution
Ian_C
New member
My 1.8 Dynamic had recently started to be diesel-like for about 5 seconds at start-up. This happens mostly at work however where other people can hear it... when no-one else is around its as silent as anything.
Is this serious... yet another thing to get fixed (the list is long enough already)... or can it be left alone? I remember my Brother's old VW Polo's tappets were really noisy at start up and nothing ever happened to that...
Is this serious... yet another thing to get fixed (the list is long enough already)... or can it be left alone? I remember my Brother's old VW Polo's tappets were really noisy at start up and nothing ever happened to that...
the damaged/broken variator causes the diesel noise
if left unchanged, a 1.8 engine with a damaged variator is not affected at all and it will not get damaged (same performance), potentially the broekn variator could be left on the engine for good, but then the noise will be there for ever!!!
the variator can be changed under warranty, and once you have a new variator your car is as silent as you would expect and you will regret the fact that u left the noise for so long
with a new variator the quick tappets noise at start up disappears as well....
if left unchanged, a 1.8 engine with a damaged variator is not affected at all and it will not get damaged (same performance), potentially the broekn variator could be left on the engine for good, but then the noise will be there for ever!!!
the variator can be changed under warranty, and once you have a new variator your car is as silent as you would expect and you will regret the fact that u left the noise for so long
with a new variator the quick tappets
noise at start up disappears as well....
so whats the cure for the same noise on 1.6 models?
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This is all fascinating. My Stilo is very quiet - depending on the position of the accelerator! I'm not sure what a variator is or it's function. Would one of you gentlemen enlighten me please?
Would one of you gentlemen enlighten me please? PhilB
New member
James Abarth said:I'm not sure what a variator is or it's function.
Bloody Hell, James, are you thick or what?
A variator is a little gadget in the engine somewhere, which, when working correctly, stops it from having noisy tappets!
(Could'nt help that, sorry)
The variator regulates the camshaft timing across the rev range. If it isn't working properly/broken then you'll lose performance so get it fixed under warranty. I had the same problem in the Alfa GTV got it replaced along with the cambelt and tensioners, no more diesel impressions.
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PhilB said:Bloody Hell, James, are you thick or what?
A variator is a little gadget in the engine somewhere, which, when working correctly, stops it from having noisy tappets!
(Could'nt help that, sorry)
Thank you for your courteous and highly technical reply.
sumplug
Established member
hello people.
the variator allows the exhaust/pulley cam to open a bit quicker under acceleration giving more power and torque.the trouble is,this part is on its fourth design and still is not right.anybody with a 1.8 with diesel like engine noise that has full fiat service history can be changed under warranty.engines that are tappety on cold start should go quiet after a few seconds when the tappets jack up with oil.if not,then you are starting to get faulty tappets or slightly blocked oil ways.solution,drain oil,run engine on flushing oil for 15 mins.re-fill with semi synthetic like selenia 20k or castol magnatec 10/40.dont just use a multigrade.this will clog up within 2000 miles or so.also,would recommend a good quality oil filter with a one way valve that stops the head from draining its oil away.
1.6 engines that are tappety when hot,have jacked up tappet that need removing and sorting.
the variator allows the exhaust/pulley cam to open a bit quicker under acceleration giving more power and torque.the trouble is,this part is on its fourth design and still is not right.anybody with a 1.8 with diesel like engine noise that has full fiat service history can be changed under warranty.engines that are tappety on cold start should go quiet after a few seconds when the tappets jack up with oil.if not,then you are starting to get faulty tappets or slightly blocked oil ways.solution,drain oil,run engine on flushing oil for 15 mins.re-fill with semi synthetic like selenia 20k or castol magnatec 10/40.dont just use a multigrade.this will clog up within 2000 miles or so.also,would recommend a good quality oil filter with a one way valve that stops the head from draining its oil away.
1.6 engines that are tappety when hot,have jacked up tappet
OP
OP
yo guys, with regards my noisy tappets, actually getting the variator and cambelt etc replaced under warranty, car is at the garage just now.
hopefully no more noise. watch this space!!!!
hopefully no more noise. watch this space!!!!
