Strong Fuel smell inside....urgent help needed!!!

[axewielder]

have you checked compression yet?, the only reason for fuel smeel coming from that breather that i can think of is if the piston rings are worn+ letting fuel past into the crankcase+ thus the vapour escaping out of the breather? + have you checked the fuel rail+ pressure regulator on the end is working properly?

[gor131-x]

i phoned up swinton gsf branch an dtold them about this problem,and he's suggested its the throttle body.my old engine,the 2nd worn engine and the engine that ive got in now,the only thing that ive transferred over from the old engine is the throttle body,could this be worn.

a compression test would require me to go to a garage and the only decent garage round here are closed and will open up after the new year

not to sound like a numpty but wheres the fuel rail and pressure regulator?

the engine i have in now had 73k miles on it and was running sweet in the car that it came out of,could the throttle body be telling the injectors to dump in too much fuel and the raw fuel is going past the piston rings and into the bottom of the engine?and if the piston rings are allowing fuel to get past,does that definitely mean the rings are worn?

[javalin]

> ive transferred over from the old engine is the throttle body,could this be worn.
not sure how they get "worn".  Its effectivly a funny shapped pipe with the throttle butterfly in it.

>a compression test would require me to go to a garage and the only decent garage round here are closed and will open up after the new year
yes.

>not to sound like a numpty but wheres the fuel rail and pressure regulator?
Is yours multi-point-injection?  aka multiple injectors?  Follow the fuel pipe in from the offside of the car under the bonet to the injectors, its there - litterly a pipe. The pressure reg is at the end usually held in by a pull-out clip

>could the throttle body be telling the injectors to dump in too much fuel
No - Fueling is controlled by the ECU, which works it out by the throttle position, RPM, air intake, Lambda etc.

> and the raw fuel is going past the piston rings and into the bottom of the engine?
If so then you've not got ignition somewhere.  It'd be blown out of the exhaust in preference to going past the rings I'd expect.  Your oil would also be screwed - aka 1/2 oil and 1/2 fuel!  Nice!

[javalin]

(silly forum software wouldn't allow a longer post - box kept scrolling up!)

>and if the piston rings are allowing fuel to get past,does that definitely mean the rings are worn?
it would be dire.  A compression test would show.

James

[gor131-x]

wow thanks for that detailed reply,now that i know where the fuel rail and fpr are,how do i check if they're working as they should?

ill wait until new year before i buy anything else for it and book it in for a full diagnostic,ive had a word with the mechanic and he said he'll charge £50 for finding the fault,i think thats a fantastic price

i wonder if the ECU is still running some faults from the previous engine causing the air/fuel ratio to run lean on the new engine?(or am i talking sh**)

[VR6-Joe]

On the 1.4 AEX engine all the switches and sensors are built into the plastic casing on the side of the throttle body

When my throttle body was knackered, the water header tank was throwing out water.. which indicated to me that something was wrong with the car. I changed the throttle body for a second hand one and it stopped throwing out water!

Maybe try and source a second hand throttle body and try it?

[gor131-x]

i phoned the scrapyard i bought the engine off,he thinks he still has it,he'll let it go with the manifold and the throttle body for £50 which is reasonable,i'm going tomorrow to pick it up,ill change the throttle body at the scrapyard,i should find out straight away if it has made a difference because the breather hose shouldn't smell of raw unburn fuel

[gor131-x]

ive changed the throttle body and it feels much better to drive,put int £10 worth of fuel and then loss of power,car switches off.

opened bonnet and the platic fuel pipe that comes from under the car had come off from where it joined the rubber hose,its got no clip on it! theres another ipe next to it which goes into the carbon canister and thats not got a clip either,and the  pipe that connects to the throttle body for the fuel,guess what,it hasnt got a clip.

am i right in saying these pipes are pressurised? and not having clips on it will cause fuel to leak from there? even though theres no visual signs when car is started and revving.

feel like killing the mechanic who put the new engine in!

also the coolant expansion tank,i bought a new one from gsf and a new blue cap aswell,its not allowing the system to vent which causes the radiator hoses to airlock and the temperature needle to drop to zero.both parts are brand new,my passats blue cap clicks when it reaches the full closure point,this doesn't,and if i do it too hard,i cant open it,i have to use a wrench!

[javalin]

>am i right in saying these pipes are pressurised? and not having clips on it will cause fuel to leak from there? even though theres no visual signs when car is started and revving.
yes you are right - but surely you checked the fuel supply lines.....?

>,its not allowing the system to vent which causes the radiator hoses to airlock and the temperature needle to drop to zero
its a sealed system (hot water under pressure doesn't boil...) - its not supposed to vent...!

Can I make a suggestion?  http://www.amazon.co.uk/Hilliers-Fundamentals-Motor-Vehicle-Technology/dp/0748780823/ref=sr_1_1?ie=UTF8&s=books&qid=1261683209&sr=8-1

[gor131-x]

 :embarassed: sorry and thanks for the book,i think i'm going to order that!

ok,if it doesn't need venting,then why do the radiator hoses go rock hard and once i open the blue cap,they go back to normal?