weird exhaust question here.

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e30-EVN
Old Skooler
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Location: S.Wales

Post Sun Jul 01, 2012 11:23 pm

Got the car back together today after changing clutch and lightening the flywheel ect,,, been out in it and great but,,, why if the engine is switched off and cooled slightly then fired up I have a blow somewhere near manifold to downpipe (can't be sure as its dark) but once she warms up a bit the blow stops??

And no blow whatsoever unless turned off for a little while! 2 mins and blow gone!! Never ever experienced this before. Normaly if an exhaust is blowing its bloody blowing :?
A 2 door e30 with 8 cylinders, what could be better winkeye :D
leeparkes
Married to the E30 Zone
Married to the E30 Zone
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Post Sun Jul 01, 2012 11:27 pm

Metal expands when hot so it closes the hole. :)
Cypriotgeeza wrote:I done both my mates in my old 318is
felt so proud,even tried it with a E30 325i and got put in my place.. :o:
Rav335uk
E30 Zone Meets/Events Team
E30 Zone Meets/Events Team
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Post Sun Jul 01, 2012 11:29 pm

As above, you have a slightly loose bolt somewhere, or a diminished gasket
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If you Got "Haters",Then your doing something Right!
CR24v??? Where's it all gone?? LOL
e30-EVN
Old Skooler
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Post Sun Jul 01, 2012 11:34 pm

You know Lee, I said that as a theory to my girlfriend earlier but never experienced it before...

Rav, I fitted new triangle gaskets mate but maybey just maybey lol,, I've left a nut loose. It pickled my head earlier on.

Will be getting under the bitch tomoro first thing, was quiet embarassing after entering the local with a touch of tail out, flame spitting, 6 pot sexyness action only to fire up to leave 10 mins later and she's bloody blowing!! Like I say though, 2 mins and no blow.
A 2 door e30 with 8 cylinders, what could be better winkeye :D
e30-EVN
Old Skooler
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Location: S.Wales

Post Mon Jul 02, 2012 8:01 pm

Problem solved, 2 of the 3 nuts on one of the downpipe flanges did the off so only one left..!
I did nip the little buggers up although not going to crazy incase the studs snapped but there we go ay lol. New nuts fitted and thread locked so these bitches aint going nowhere :D
A 2 door e30 with 8 cylinders, what could be better winkeye :D