rattling sound on engine when hot
16 July 2003, 10:52 PM
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Ive started to hear a rattling sound appearing on tickover when the car gets warm.It seems to be coming from the drivers side of the engine, possibly around the head.
Cant be heard above tickover, but think it is getting worse.
I have took it to a reputable garage for them to listen, but they werent sure what it was, said it could be piston slap, but to just keep check of it and see if it deteriates.
My car does suffer from mild slap, but thats more of a hollow sounding knocking I think.
If this makes any sense does anyone have any ideas?
BTW, did an oil change 2 weeks ago, with the same silkolene pro-s 10w50
Forgot to say, 93wrx.
Cheers, Rob.
[Edited by rob oneill - 7/16/2003 11:03:36 PM]
Cant be heard above tickover, but think it is getting worse.
I have took it to a reputable garage for them to listen, but they werent sure what it was, said it could be piston slap, but to just keep check of it and see if it deteriates.
My car does suffer from mild slap, but thats more of a hollow sounding knocking I think.
If this makes any sense does anyone have any ideas?
BTW, did an oil change 2 weeks ago, with the same silkolene pro-s 10w50
Forgot to say, 93wrx.
Cheers, Rob.
[Edited by rob oneill - 7/16/2003 11:03:36 PM]
Sounds a bit tappety, but what do I know
17 July 2003, 10:23 AM
#5
Your engine will have hydraulic valve lifters (later versions have solid lifters) so, depending on mileage, these could well be your problem. A couple or more may not be pressurizing fully allowing excessive valve clearance. As the oil pressure rises with engine revs. so the problem reduces. They could be telling you it's time for replacement! You need to get a Scoob specialist to have a listen.
JohnD
JohnD
17 July 2003, 05:30 PM
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OK thanks.
I can handle that, as long as its not goung to blow up on me in the next few days!
I will get a second opinion from a specialist garage.
Cheers, Rob.
I can handle that, as long as its not goung to blow up on me in the next few days!
I will get a second opinion from a specialist garage.
Cheers, Rob.
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18 July 2003, 05:32 PM
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Thicker oil (depending on exactly how much thicker you go!) could cause problems elsewhere, so it's not really an answer.
If I had to hazard a guess, I'd go with Subman and the dirty injectors. Whatever you do, rule them out as the cause before you go getting the head stripped
If I had to hazard a guess, I'd go with Subman and the dirty injectors. Whatever you do, rule them out as the cause before you go getting the head stripped
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