Re: Ticking noise

[P-O.Selander@ccgate1.exu.ericsson.se (P-O Selander)]

> Once in a while on my 87 4000Q, I hear a ticking noise 
>from the engine that is louder than normal. Has anyone 
>else experienced this or have any ideas what this is 
>from?

I'd say it is the cold start fuel injector on the intake 
manifold. On my '89 100E it has a very distinctive 
"click" when it is actuated. And, the "pulse" on this 
injector is slower than the engine rpm, so you can easily 
hear it.

Best /// P-O Selander, Dallas, TX
'89 100E
'91 300ZXTT