430 question - Is this normal?

[Eleander]

After a decent length drive I notice there is a white spray on the inside of the engine cover. Not sure how best to describe it so I have attached a couple of photos. Facing the car it is on the right hand side only.

Is this normal and if so why does it only affect one side?

[steelej]

I get the stuff on the rear window usually in wet weather, i just put it down to some kind of spray, haven't ever noticed anything on the expansion tank though.

John.

[cayman-black]

Had this white dust in all my Modenas and 430, some thing to do with the exhaust i believe. Very annoying.

[iandc]

It comes out of the exhaust. Fixed if you replace with a Tubi etc plus you get a better sound and performance!!

[jackal]

Try a pack of 3. Available at all good mens toilets or your local chemist.

F430s have this effect on folk quite often.

[Eleander]

Thanks guys.

Given the spray pattern I was thinking there was a loose seal/connection somewhere. Sounds like it's nothing to worry about.

It wipes off pretty easily so not really an inconvenience.

[Eleander]

jackal said:

Try a pack of 3. Available at all good mens toilets or your local chemist.

F430s have this effect on folk quite often.

Lol, if it was on the outside I wouldn't be so relaxed about cleaning it up!!

[sidned]

From the looks of the second picture the pipe connecting to the expansion tank my have a slight leak. The cooling system is under proessure so these leaks only occur when you rev the engine. I had coolant loss on my 360 and couldn't find a leak until we had it on a ramp and revved the engine. Only then did the leak show itself. Get the engine warmed up then give it some revs while someone looks in the engine bay. A new jubilee clip should sort it if it is that small pipe.

[Eleander]

sidned said:

From the looks of the second picture the pipe connecting to the expansion tank my have a slight leak. The cooling system is under proessure so these leaks only occur when you rev the engine. I had coolant loss on my 360 and couldn't find a leak until we had it on a ramp and revved the engine. Only then did the leak show itself. Get the engine warmed up then give it some revs while someone looks in the engine bay. A new jubilee clip should sort it if it is that small pipe.

Thanks Sidned. I had a look at that pipe and seemed fine but will check it with the engine running at the weekend.

You explanation makes sense as it only appears after a decent length run.