Just out of interest is you bootbuild made out of mdf with alcantara covering? Very nice bootbuild!

Yeh, i connected brake servo vacuum pipe up properly and sealed the mantzel and the revs are more stable.

Made a few people jump when it first fired up, lol.

Cheers guys!

There was an air leak between mantzel and inlet manifold. Apparently its all fine now.

The brake servo vacuum pipe came off on my fiesta (oh, the dark old days!!) and this made it rev right up, then down, and up again, and so on....so air leak could be a possibility.

the wd40 trick works except if you have a leak the revs will rise, if your redlining from start up you wont be able to tell, not sure about the air leak i had a massive hole in the inlet trunking on my gsi and it only reved to 3000rpm

Spray some wd40 around the gaskets that join the inlet manifold to the head. If the air leak is there (which it sounds like it is) you will be able to tell. :)

am goin back to garage now and al try and seal the mantzel properly and give it another go....

Dave - am not sure coz havnt let it run for very long coz a still need to connect the cooant pipes up.

Keep the sugestions cumin lads cheers....

You've deffo got an air leak somewhere. :!

does it stay at high revs?

possibly yes

wud this make it redline though?

breather pipe off some where

Just put a 1.4 16v engine in, basically everything is done except coolant pipes and exhaust.

On startup the engine just revs straight up even with my hand over the butterfly to stop air gettin in......

all sensors have been connected except the air temp sensor in induction tubing. Has mantzel powerbox.

Any1 got any ideas as to why it wont idle?

Thanks