BX 1600 MISSING on decelleration

John · Post by **John** » Sat Dec 06, 2008 8:32 pm

I've a problem with my BX 1600 RS (petrol). Since having the valve stem oil seals redone - engine was smoking badly and failed MoT on emissions - the car has run less well. The engine judders at times and misses on decelleration. Have tried resetting the ignition timing, renewing plugs and so on but without any success. Can anyone help?

demag · Post by **demag** » Sat Dec 06, 2008 11:10 pm

What do you mean by missing? Popping in the exhaust? This can be caused by a leaking manifold gasket.

Aerodynamica · Post by **Aerodynamica** » Sat Dec 06, 2008 11:52 pm

Odd - I was just about to post a question about this myself also on a 16.

On deceleration I get a sound that could be popping but to me sounds like a bit of exhaust is rattling on the ground (I've checked BTW - it's not..) I first noticed it in the Clyde tunnel with the window down and thought it was coming from the van in the next lane but I got the same today on my own.

It's only on acceleration and it definitely sounds like it's coming from the rear - could it also be a bad manifold?

demag · Post by **demag** » Sun Dec 07, 2008 7:06 pm

Loose silencer baffles Graeme?

Kitch · Post by **Kitch** » Sun Dec 07, 2008 10:17 pm

How loud is it? Could it not just be the natural popping and banging contained in the exhaust that most cars do?

Post by **Tim Leech** » Mon Dec 08, 2008 9:41 am

Havent noticed that on mine I must say and I have a finely tuned ear, you would normally put that kind of thing down to timing but if thats already been checked? Is the exhast sealed ok?

Aerodynamica · Post by **Aerodynamica** » Mon Dec 08, 2008 9:59 am

It's not very loud - I missed it at first! It really does sound like a hollow metal something rattling on the ground.

I'm sure it doesn't do it when it's cold but after a fair run. Only does it with the car and engine slowing together.

There is a sight blow in the exhaust at the back box - could be that?

Post by **Tim Leech** » Mon Dec 08, 2008 10:56 am

Worth a go mate, the GT had a slight blow when I got it and it made it sound like a farting dog on tickover!

BX Bandit · Post by **BX Bandit** » Mon Dec 08, 2008 11:39 am

You should hear a Morris Minor! They 'fart' every gear change and using engine breaking is just great!