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[fcc-pt]

I know that two very similiar valves live under de bonnet. One is the Heater Bypass Valve the other it stands next to the radiator and I don't know what's for, I belive it's for the climatization!
Second I really need to get the vacuum hose that connects the manifold to the vacuum break pump, I guess it has about 12mm diameter? I also need to get the 3 or 4 mm hose that connects all the vacuum adapters. I can't get it over here and I can't get it over ebay or amazon... if any of you know where I can get those hoses please let me know.

Thank you very much.

[DD-Indeed]

the other it stands next to the radiator and I don't know what's for...

That is the secondary air injection valve. It controls the airflow, that is coming from the pump located under the battery and the airflow goes to the exhaust manifold and is used to reduce the exhaust gases when you have cold engine.


And as for the small pipes. There is many cars that have them (especially 80's and 90's cars have them) and they are very often exactly the same, so you shouldn't have problems finding ones. And you can connect two shorter ones with piece of rubber hose to have one longer one.

[fcc-pt]

the other it stands next to the radiator and I don't know what's for...

That is the secondary air injection valve. It controls the airflow, that is coming from the pump located under the battery and the airflow goes to the exhaust manifold and is used to reduce the exhaust gases when you have cold engine.


And as for the small pipes. There is many cars that have them (especially 80's and 90's cars have them) and they are very often exactly the same, so you shouldn't have problems finding ones. And you can connect two shorter ones with piece of rubber hose to have one longer one.

Does the strong petrol smell by the morning can be explained by faulty secondary air injection valve?
When I say faulty, I assume that if the vacuum system does not work then the secondary air injection valve might not work, right?
I've found the tubes on a local store... tubes from vacuum systems they have all sort of measures.

Thank's a lot...

[DD-Indeed]

Does the strong petrol smell by the morning can be explained by faulty secondary air injection valve?
When I say faulty, I assume that if the vacuum system does not work then the secondary air injection valve might not work, right?
I've found the tubes on a local store... tubes from vacuum systems they have all sort of measures.

Thank's a lot...

Yes, there is strong smell of petrol because the cold morning start is using a lot of fuel, like a choke, and some of the first amounts of petrol comes throught unburned. I think that whole system is designed for garage starts, if you have doors closed, it's not healthy to smell the exhaust fumes and it's preventing the possible backfires from happening. The secondary air injection isn't necessary feature, the car works fine without it, I don't use it, because the rubber tube that goes to the pump is gone to pieces over time, so I just took the fuse off from the blower motor and blocked the vacuum pipe with small bolt.


Good, that you found them.

[fcc-pt]

So the smell is normal or a direct problem of the vacuum?

I can ear the pump beneath the battery, that pump works forever... I mean used to be! Before vacuum repair. About the other tubes the small hard plastic do you think its safe to Replacement them by silicone ones ?

Again and trying to desmestify the pump beneath the battery. Is it needed to support the rear suspension right? How can i check if its working?

[DD-Indeed]

So the smell is normal or a direct problem of the vacuum?

I think, that it's about that vacuum thing, if the vacuum thing isn't working, it won't blow off those petrol fumes from the exhaust.

[fcc-pt]

So the smell is normal or a direct problem of the vacuum?

I think, that it's about that vacuum thing, if the vacuum thing isn't working, it won't blow off those petrol fumes from the exhaust.

Hum  I get it...