Engine rattle,,,

**Pedro_The_Swift** · 23rd December 2010, 07:21 PM

all of a sudden,,
at around 2K I can make it rattle,,
can do it in park, in neutral, and at 2K on the road,,

sounds like,, pinging,
noise increases with revs,
wont do it straight up from idle, requires a few revs,

and now idles poorly, and too low,

maybe a small amount of fluid loss,,,

would an O2 sensor or MAF failure cause piston rattle?

or is it that other thing,,,

**Scouse** · 23rd December 2010, 08:51 PM

Could you have picked up a bad batch of fuel?

**Blknight.aus** · 23rd December 2010, 08:56 PM

how many ks?

check all the securing bolts on the pulleys on under the belts.

if its got a mechanical dizzy back the timing of a couple of degrees and still if its still doing it.

add .5l or so of a slightly thicker engine oil (20-50) and see what that does for you.

**LandyAndy** · 23rd December 2010, 09:08 PM

Hey Pedro
Slice 3 slugs off it and it would be a normal sound

Are you getting the same noise on LPG and fuel??? That would be the first test to eliminate bad fuel.
Andrew

**Pedro_The_Swift** · 23rd December 2010, 09:08 PM

Originally Posted by Scouse

Could you have picked up a bad batch of fuel?

bad batch of LPG??

Originally Posted by Blknight.aus

how many ks?

check all the securing bolts on the pulleys on under the belts.

if its got a mechanical dizzy back the timing of a couple of degrees and still if its still doing it.

add .5l or so of a slightly thicker engine oil (20-50) and see what that does for you.

for some reason its overfull,,
but I did add a litre or so as it was down to the mark,

it is due for a change.

99K.

**Pedro_The_Swift** · 23rd December 2010, 09:12 PM

Originally Posted by LandyAndy

Hey Pedro
Slice 3 slugs off it and it would be a normal sound
Are you getting the same noise on LPG and fuel??? That would be the first test to eliminate bad fuel.
Andrew

will have to try in the morning,,

can switch the gas system off,,,,

**Scouse** · 23rd December 2010, 09:13 PM

Originally Posted by Pedro_The_Swift

bad batch of LPG??

Sorry, my ESP is in holiday mode

.

**Blknight.aus** · 23rd December 2010, 09:19 PM

if its dual fuel....

check the oil for petrol contamination...

That would be bad, very very bad.

**Pedro_The_Swift** · 24th December 2010, 06:37 AM

oh and I might change the description from above--

when driving the rattle is always there, in varying degrees, above 1500rpm,,
changed the oil (at 5am, in the rain) this morning, used some HPR30 I had left over from the D1, no difference,
did Ricks oil contamination drip test and theres no second ring,,
refilled the ulp tank with 98, no difference,

**Blknight.aus** · 24th December 2010, 07:03 AM

time to try disconnecting cylinders one at a time and see if it changes....

if it doesnt its time for some overhaulin.

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