Rattle Sound On Shutdown

[luvpsi]

hey guys im probably being paranoid however i started my rb25 for the first time in about 3 weeks let it idle til it warmed up (idled fine and reved fine) when i turned it off i heard a slight rattle wasnt really loud and not sure if it was a knocking sound. it could have been something just rattling im not sure. like i said im probably just being paranoid.

if it was a engine knock it would be making the noise the whole time right?

[Bsa]

Change your oil see what happens

[jhjones]

Exhaust manifold studs?

[luvpsi]

could be exhaust manifold studs as i just a a cat fitted so it was moved around a bit

im going to do a oil change today anyway what could the oil have to do with it tho as the oil has only done 2000kms but i dont like it so im changing it

[Bsa]

Where abouts was the knock? How long did it idle for?

[luvpsi]

i let it idle for about 15 mins gave it a couple of revs reved fine then i shut it down sounded like it came from under thebonnet but it didnt sound like a engine knock i dont think sounded like something knocking against something. not sure im just being paranoid i think. im going to change oil today and see how it goes then

[luvpsi]

ok just started it up and got the mrs to turn it off with my head under bonnet its a slight rattle coming from exhaust side so im assuming its either a stud or my front/dump pipe rattleing against something i will check it out closer as i need to do some work to the exhaust as when i fitted cat converter it shortened exhaust and it touches panhard rod in the rear unless it that rattling and the sound traveling up the exhaust

[StevenCJR31]

loose heat shield maybe?

[luvpsi]

sounds a bit heavy to be a heat sheild more like manifold rattle or exhaust it self

[jhjones]

Give it some revs at the throttlebody and you should be able to hear the manifold gasket flapping around.

[luvpsi]

Yeah I did and I couldn't hear it must be something hitting up against something I'll keep hunting it's prob been doing for a while and I just noticed

[yogi000]

my car makes a rattle as i switch it off, mine seems to the gearbox. so if your car is manual, try switching it off with the clutch in to see if it makes a noise.

[luvpsi]

I will try that