slo7899

Hello all.

I have a wrx sti hawk. I have a rattle/knocking sound from within the engine bay. Seems to be coming from the front of the engine. It disappears after around 2500rpm. Having trying to search I found from YouTube that It could possibly be the cambelt tensioner. I will try and post a vid of the noise itself later on.

Any ideas?

Cheers peeps.

ossett2k2

iTrader: (9)

Have a look and check all the exhaust heat shields,they can come loose or corrode and make a rattle/knock.

slo7899

Rodger. Will have a look tonight and post a video if I can't diagnose myself.

Cheers.

Gavscooby1

If you have air con check idler puller mine was worn and thought it was engine

slo7899

I checked the rattle last night and it seemed to disappear after a few revs or when the fan kicked in. This leaves me to think it might be a loose heat shield as Ossett2k2 has said. Going to have to wait until the weekend to get it up in the air to have a proper look. But overall I don't think it's anything to loose sleep over.

Cheers.

slo7899

Here is the vid. I do have forged Pistons, but I would have thought that piston slap would disappear once warm, but this doesn't.


Cheers

ossett2k2

iTrader: (9)

I'm actually having the same issue as you mate.
Also forged,always been slappy when cold(had the car 6 months) but now it's tappy even when warm,sounds pretty much like yours and I searched YouTube and came to the same conclusion,noisy tensioner.
The only way to check is by taking of the cam covers,ballache for me as fmic pipes want taking off so means taking the bumper off ect.
I've been wanting to replace timing belt anyway so we are doing that on Tuesday,I'm hoping this is what the noise is on mine.

I did a couple of oil changes(filtered the old oil) didn't find any pieces of bearing so doubt it's bottom end,plus that's a different kind of knocking which is noticable at all revs and very bad when coming off throttle.
There are other things it could be,broken rod or piston are a couple of things(hope not tho)

Hope it's nowt bad for you pal,keep us updated if you find out the problem.

slo7899

Yea hopefully nothing to worry about. I did an oil change 2week ago and didn't notice any metal particals in their. Think next month I'm going to take it to the clinic to see what they say on the matter.

Cheers.

**jay**

iTrader: (1)

Will come back with plenty more rattles ifyou take it there lol

JDM_Stig

iTrader: (3)

at least the rattle from the suspension will hide the old noise lol

slo7899

The previous owner swore by them. I know of recent events. But who am I to judge, i've never been there.

JDM_Stig

iTrader: (3)

People wrote in to Jim`ll fix it, but would you today, knowing what you know now ?

Scubarroo

Too true, might sound crazy but the most important thing too me that I hand the keys over to someone who more of a passion for what they do and a respect for my pride and joy. Rather than some people who have complete disregard for my property. My dad had a saying which has stuck with from the first time I herd it "familiarity breeds contemt" wasn't his saying but true I think.

slo7899

So Richard Henry motosport then.