Wee bit of piston-slap, end of the world?
#1
Wee bit of piston-slap, end of the world?
So this has only come about as a result of the cold weather, but noticed some very faint piston-slap on cold start. Only lasts for around a mile or so but is it going to be a huge issue? Rebuild etc?? Or can I live with it? Doesn't seem to affect the car in any way and always fades away after a short time..
#2
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Common issue this buddy. I get a bit on cold start but like you it seems to fade away.
It's not major and is fine to carry on as normal.
Some people get the engines done as cant stick the noise which may get progressively worse with time.
I'm happy to leave mine to be honest as its really not a problem and you have to have the hearing of a cat to hear it.
I'm going to carry on as normal and wait (if it ever happens) until the car goes pop, I'll then be having another newage STI bottom end stroked to a 2.1.
It's not major and is fine to carry on as normal.
Some people get the engines done as cant stick the noise which may get progressively worse with time.
I'm happy to leave mine to be honest as its really not a problem and you have to have the hearing of a cat to hear it.
I'm going to carry on as normal and wait (if it ever happens) until the car goes pop, I'll then be having another newage STI bottom end stroked to a 2.1.
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#14
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Say they love you mate
@OP, My wagon is fully forged 2.5 and has piston slap in the morning, my procedure is start it let it idle for 30 secs and then drive away, keeping the revs below 3k until warm. I think the letting it idle takes longer for the pistons to expand to spec. I just get in a drive it have been doing that for 15k and no problems.
#15
Say they love you mate
@OP, My wagon is fully forged 2.5 and has piston slap in the morning, my procedure is start it let it idle for 30 secs and then drive away, keeping the revs below 3k until warm. I think the letting it idle takes longer for the pistons to expand to spec. I just get in a drive it have been doing that for 15k and no problems.
@OP, My wagon is fully forged 2.5 and has piston slap in the morning, my procedure is start it let it idle for 30 secs and then drive away, keeping the revs below 3k until warm. I think the letting it idle takes longer for the pistons to expand to spec. I just get in a drive it have been doing that for 15k and no problems.
#16
i have fully forged and the sound of slight piston tapping, completely normal.
although i would not leave it idling on the drive for 10 mins, i prefer to let it idle 30sec to a minute and drive slowly, much better way to get heat into the engine
although i would not leave it idling on the drive for 10 mins, i prefer to let it idle 30sec to a minute and drive slowly, much better way to get heat into the engine
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#22
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is this what u guys here in the morning?? http://www.youtube.com/watch?v=PrdMpLPUu3c
Mine doesn't sound as bad as that to be honest and disappears pretty quickly after its started.
#23
http://www.youtube.com/watch?v=oQELTwI6Qk0
Last edited by datuck; 11 April 2012 at 01:18 AM.
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So this has only come about as a result of the cold weather, but noticed some very faint piston-slap on cold start. Only lasts for around a mile or so but is it going to be a huge issue? Rebuild etc?? Or can I live with it? Doesn't seem to affect the car in any way and always fades away after a short time..
#25
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takes about 5mins of easy driving and it goes away completely then i go ***** out lol. i bought the car about 2 weeks ago and it was not tapping at all. i put some 5w30 semi synthetic oil in as a top up and it started tapping on a cold start. i then found out that its has 5w40 synthetic used in it all its life. i had a oil change done on it today and its still tapping. a better vid of the tapping im getting
http://www.youtube.com/watch?v=oQELTwI6Qk0
http://www.youtube.com/watch?v=oQELTwI6Qk0
#26
I hate to be the bearer of bad news but that sounds like the bigends are just starting to let go to me, if you hold the revs from under the bonnet and increase them very slowly to say 1800rpm the point at which the revs rise the noise sounds a little thudd like then I'd say it's definitely the bigends.
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Yeah the engine sounds poorly mate but it's hard when listening through IPhone, if it settles down and runs smoothly once upto running temps then I wouldn't worry too much.
Last edited by L.J.F; 11 April 2012 at 09:47 AM.
#28
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Will be looking back at this thread in a week or two and see how silly my advice was...
#29
Im pretty sure it sounds worse by the phones speaker this is not even my car or vid. mine doesnt knock at idel at all like this guys car is. its only when i rev it a little u can hear it, its quite hard to get it in the sweet spot to here it. My nearest garage is about a mile away by the time i get it there the ticking has gone. I would have to drop the car off for say 3 to 4 hours before the tapping returned at a cold start. you can only here it at light load and it doesnt go through all the rev range car pulls fine still really fast. i have been for big drives in it giving it some and no change to the noise. it doent seem to be getting any worse fingers crossed.
Last edited by datuck; 11 April 2012 at 10:09 AM.
#30
O very sorry m8 didnt mean to sound offish but its because i was concidering what u said as a possibillty. Which made me get all worried lol my bad