EXHAUST MANIFOLD HEAT PLATE?

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Justin
Posts: 366
Joined: 31 Jul 2008 12:18 pm
Location: Plymouth

EXHAUST MANIFOLD HEAT PLATE?

Post by Justin » 19 Aug 2013 02:25 pm

I have recently noticed a vibrating sound when my cars revs are low. According to a friend its the exhaust manifold heat plate/shield vibrating against the beginning of the exhaust. He told me to bend it away from the exhaust by pushing a long metal bar against it! Thing is, which way do I bend it? Towards the exhaust or away from it?...
1988 340 1.4 DL

(I suffer with O.C.D. which makes me obsessed with fine detail)

(Diagrams or photos are far more helpful to me when it comes to cars)

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bogbasic
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Joined: 21 Nov 2004 10:12 pm
Location: New Malden, Surrey.
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Re: EXHAUST MANIFOLD HEAT PLATE?

Post by bogbasic » 19 Aug 2013 03:18 pm

Hello, I would wait till the engine is cold and then wobble the exhaust plate by hand to see if its at all loose. The vibrating could be due to something else and you need to have a feel to be sure.
1988 340 1.4 GL, 218k, 5 door (Grey Bess). Gone to CBA.
1991 340 1.7 GL, 64k, 5 door, petrol blue (Deep Blue).
1988 360 2.0 GLE, 140k, 5 door, ocean blue metallic (Blue Bess).
1989 340 1.7 GL, 108k, 3 door (Red Ness).
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stemo
Posts: 8
Joined: 02 Jan 2013 05:58 pm

Re: EXHAUST MANIFOLD HEAT PLATE?

Post by stemo » 22 Aug 2013 12:00 pm

I had a similar sounding problem but it turned out the exhaust gasket had gone on No.4 and the blowing was causing the metallic sound - possibility if the shield isn't loose!

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