Well the engine would'nt rev over 3000rpm and no power at all. Would bearly make it up a hill. Checked the oil cap and it had milky oil inside. I later found out it was just condensation.

Well the engine would'nt rev over 3000rpm and no power at all. Would bearly make it up a hill. Checked the oil cap and it had milky oil inside. I later found out it was just condensation.

 

Just condensation???

 

That doesn't sound right at all??!

 

Never heard of milky condensation when taking of an oil cap!

 

It should be nice gold coloured oil under there & nothing else

Just condensation???

 

That doesn't sound right at all??!

 

Never heard of milky condensation when taking of an oil cap!

 

It should be nice gold coloured oil under there & nothing else

 

 

Well it is right.

 

If you do a lot of small trips in a car, any water vapour thats found its way in there from watever source isnt able to be evaporated away. If the oil is never up to temp enough to evaporate the water, it will stay there and build up.

 

The cure is usually a 40 minute sprint on the highway to make sure it all gets good and hot and the water vapour can escape the oil out the pcv and breather system. Generally just driving a car for a while will fix it, so that explains why its cleared up now.

Or the cat had collapsed. Mine did that when i had the seca and i couldn't rev it over about 2500 otherwise it'd miss and sounded choked. The five kay drive back home from memory used about a 1/4 tank of fuel as well.

Sorry guys but I am a little stunned about one of the comments saying that the exhaust makes little difference. They are crucial, otherwise there would be no industry and magick needs to be used. Without back pressure you are going to burn out exhaust valves in no time at all.

 

Go see a specialist or a performance tuner. Do you want fuel economy, driveability, or all out performance? But be warned, witchcraft will be invoked :-) And it makes a huge difference and can make is sound bloody awesome as a nice little by-line.

 

Smelly

Without back pressure you are going to burn out exhaust valves in no time at all.

 

 

Can you please elaborate on this?

+1 :hmm:

+2

I think smelly needs a shower but before he can do that he'll need to relieve some of the back pressure on the pipes so that a fresh charge can get past the shower head before something gets burnt out.

 

Fluid dynamics.....

Without back pressure you are going to burn out exhaust valves in no time at all.

 

Go see a specialist or a performance tuner. Do you want fuel economy, driveability, or all out performance? But be warned, witchcraft will be invoked :-) And it makes a huge difference and can make is sound bloody awesome as a nice little by-line.

 

Smelly

 

I am pretty sure it's the oppersite where too much backpressure causes a heat build up on the side of the head heating up the valves more, think about it. Also I hate to say it but most people in exhaust shops have no idea at all. As them what the ideal length of extractors for your engine is without telling them when your exhaust valves close and see what they say.

A common problem i used to get where i worked a few years ago was falcons with leaking exhaust manifolds for extended periods burning exhaust valves. Really common if the manifold was left to leak badly over extended periods.

This could just be a ford design problem, would surprise me. :laff: