75ZT Community

Borg Warner · Posted 30 Sep 2012, 11:20 #1

Gentlemen

I looked at a V6 auto which sounded like a bag of nails on start up but once warm was smooth and quite. Am I right in saying this is just the VIS (Variable Intake System) chambers or is it the manifold? Seemed to respond very well on kick-down, but without comparing it to something similar it's difficult to know.

Gary

Duncan · Posted 30 Sep 2012, 11:51 #2

It's hard to say.

I wouldnt expect a VIS / Manifold nosie to quieten down, it sounds more like valve lifters if it's better when hot. As for your question, sometimes you get manifold rattle because of a dead motor, and if you are quick enough a new motor fixes it. However this is not always the case, and it could be a dead mainfold.

Borg Warner · Posted 30 Sep 2012, 13:09 #3

Cheers Duncan

It's actually a Freelander I looked at from a garage. Sounds (no pun intended) expensive, which is most likely the reason it is quite below book price.

Gary

Duncan · Posted 30 Sep 2012, 13:22 #4

You can get good maifolds still. I picked up one as a spare for fity, including the two VIS motors and the traction throttle body. VIS motors needed refurbing, but the manny itself is in fine order.

takestock · Posted 30 Sep 2012, 15:05 #5

I have heard noisy belt tensioners that go quiet when warm

Duncan · Posted 30 Sep 2012, 15:48 #6

And bang when you don't need them to, I bet.

Borg Warner · Posted 30 Sep 2012, 20:18 #7

Don't say that guys please.

75ZT Community

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Vis rattle 2.5 V6 by Borg Warner