Big leak...

[brainbug007]

bummer, I guess if I got a brand new zetec then I could still get an age related based on the running gear and gearbox but not sure if that's worth it really as the only place I've seen selling them new is kit spares or ebay and they're £700-800

[davedew]

Emissions would be based on engine age, not the donor parts. If you went for a brand new engine you would have to meet current emission levels, ie cat and fuel injection.

[brainbug007]

Ya I figured i'd have to run a cat on anything post 95 whether new or not but are you also saying you couldn't run bike carbs on a new zetec with a cat and pass emmisions?

[twinturbo]

You can run bike carbs, so long as you can keep all the emissions in check and provide a good burn through the revrange to avoid damage to the cat...

However, if you look at some of the production cars running carbs with CATS... You will run a mile and be kissing the feet of our lord EFI and singing the praises of closed loop management.

TT

[robo]

Big yes to that!!

There is an alternative to injection though.

http://www.horrorphile.net/images/hangmans-noose.jpg

Bob

[brainbug007]

Lol I thought carbs where supposed to be better power/sound and injection just spread the power out across the rev range and gave you better fuel economy?

Anyhow got it apart and here's what I found...

Bit of water that had pooled and gone a bit rusty inside the cylinder 4 intake on the bike carb manifold...


I then got the whole manifold off and got a bit of oil leaking out head from where the channel comes down from the rocker area but no water (I'm guessing this is normal?). I also stuck my finger down the intake ports and only cyclinder 4 was wet. The water outlet behind port 4 at the back of the head was also strangely dry disproving my theory about water leaking out of here and down the intake 4??



The oil does seem to have spread/leaked across the bike carb manifold gasket although there was no signs of leakage out of the manifold

[brainbug007]

I then got the head off (note I didn't try to set it to TDC 1st as I wanted to see if there was water pooling at pot 4 which would be up at TDC, I'll reset later IF the engine isn't wrecked). Low and behold it was quite wet around cylinder 4 and there was water pooled in it


I had a good look at the gasket and this section here looks like the culprit although I can't understand how it could have rotted/ripped away like this and leaked out across the block surface and into cylinder 4 and then down into oilway into the sump?


I hopefully haven't wasted my time here but I had a go at cleaning up cylinder 4 with some wd40 and it came out pretty good I thought


please tell me its salvageable....