Hi all,

I dont use the car much, really only on bad weather days or on the weekend if i need to carry something i cant fit on the bike. But i noticed that the longer i leave it standing in the garage, the more stench of fuel in the garage and the less fuel i find in the little see through fuel filter next to the fuel pump and i need to crank it for a long time (10-15 secs) so that the pump can prime and feed the carb then it runs perfect.

There is what looks like a fuel leak stain on the inlet manifold but the previous owner said that that little white plastic thing on the front of the carb was leaking and he replaced it so the stain may be from there. The problem is that petrol evaporates almost immediately so its hard to track it down..

My question is really, is there any places that commonly leak? like gaskets etc? so i can change these first. Or any other ideas to where the fuel is going from the filter when the motor is off?

Thanks in Advance!!

Courior

Fuel leaks sometimes leave a "clean patch" next to the leak, or on the floor if they're dripping.

From what you're saying, I'd suspect the filter, its connections to the lines, the line from filter to pump, the connection there, and the pump itself.

the White swirl pot on the side of the carb is usually the leak as they crack with age, also if there is ANY of the green braided fuel pipe on there still ,bin it and fit new as it will be porus by now.

Thanks for the replies, the pipes look pretty recent and the last owner told me the swirl pot was leaking and this is a new one, but maybe it was a second hand one and has suffered the same fate. Can i bypass it for a few days to see if it is that? or is it really that important?

Thanks for the replies, the pipes look pretty recent and the last owner told me the swirl pot was leaking and this is a new one, but maybe it was a second hand one and has suffered the same fate. Can i bypass it for a few days to see if it is that? or is it really that important?

We run ours without the swirl pot (also known as evaporation filter or vapour separator) and it runs fine.

A mechanic friend of ours told us that it was very common to remove it on the old vauxhalls that had the same pierburg carb.

I'd give it a go anyway.

A new one will cost u about a tenner including delivery off ebay if u decide to keep it.

ok great.. i think im gonna remove it for now.. the thing is there is 3 pipes, i suppose i just join them with a T Piece?

Also i have noticed that when im in stop start traffic when i come to a less graceful stop the revs drop and then pic up again. Would removing this swirl pot help?

ok great.. i think im gonna remove it for now.. the thing is there is 3 pipes, i suppose i just join them with a T Piece?

Also i have noticed that when im in stop start traffic when i come to a less graceful stop the revs drop and then pic up again. Would removing this swirl pot help?

No that won't work at all. Just block the return pipe and make the pipe go straight from the fuel filter into the carb.

Try it and see. I know we had a few problems with it running and removing it seemed to help.

Let us know how u get on.

No that won't work at all. Just block the return pipe and make the pipe go straight from the fuel filter into the carb.

Try it and see. I know we had a few problems with it running and removing it seemed to help.

Let us know how u get on.

Cheers for the help mate. I will be spending a day on it 2moro so will sort it then and reply on here see if it makes any difference

Courior

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I checked the swirl pot and it seems fine. the fuel leak i think is the gasket that holds the carb on.. The thing is the carb is solid against the inlet manifold and there is no play in the rubber. u can see in the above pic the dampness around the gasket/mount.

I would advise getting a new carburettor base support/gasket and see if that resolves the problem.

You can get it here at jorily:

http://www.jorily.com/catalog/index.php?main_page=product_info&cPath=131_3_25&products_id=993

I would advise getting a new carburettor base support/gasket and see if that resolves the problem.

You can get it here at jorily:

http://www.jorily.com/catalog/index.php?main_page=product_info&cPath=131_3_25&products_id=993

Wow thats cheap! i think ill get one from my local place, hes got the same sort of prices but less the postage

Mine i notice tho is metal with a little rubber bit on top.. This one in the link is all rubber. maybe i have the wrong one fitted?

Ok cool. Yeah on our car the mount is metal with the rubber on top. I think it is just the way the picture is taken because it cant possibly be all rubber because it wouldnt support carb properly.

Hopefully it will solve the problem. Good luck!

Let me know how you get on...

Not Skoda-specific, but any carb mounting blocks I've seen for downdraft carbs have been blocks of solid rubber. Their functions are to insulate the carb from heat conduction through the manifolds (particularly on non-crossflow engines) and to reduce carburetor vibration.

Not Skoda-specific, but any carb mounting blocks I've seen for downdraft carbs have been blocks of solid rubber. Their functions are to insulate the carb from heat conduction through the manifolds (particularly on non-crossflow engines) and to reduce carburetor vibration.

Yeah on other skoda's (i was looking around b4 i bought this 1) they all seemed to be 100% rubber, hence why i think i might have a wrong one on my motor.