We trying to fix a 1983 volvo 244 model, prob fuel intake

sergitin32 · Post by **sergitin32** » 11 Feb 2007, 03:55

So, i couldnt sleep with the doubt in my head:

We got this car and you could say its ok, even runned a little after 2 years stopped! as we'd been told this is a continuous fuel inection engine, (and in betwen the air intake and the carburetor it has some weird mechanism for the mixing with a spingel full of oil and kinda a glass with wholes near the ventury intake and the fuel coming to te throttel valve)... but before all this was clear to us we discovered there was one hose loose in the outside of the carburetor coming from something very alike to a filter or an electro valve, or even some sensor, just in the right fender and close behind the battery...
Also in the back of the air intake big hose there was a conection same diameter of this loosed hose, so we thought they were very like one to other we hoocked them up...

All day every time we tried running the engine it did and then flooded and the air intake was literally pourring gas-oil to the filter and out.. really lots...

Really late we realized there was no carburetor prob but the hose wasnt in the right place, but one more time looked and didnt see any other place where to conect it.

we are planning to get a repair manual but just in case if some one has a clue what this device behind the battery does, and where that hoose must go? would be a pleasure, we need the car running soon so we can enjoy summer time.

thanx lots and have the best time!

Post by **billofdurham** » 11 Feb 2007, 12:08

Welcome to Matthew's Volvo Site.

Which fuel injection system is fitted? There is the Bosch CIS Continuous Injection and the Bosch LH-Jetronic 2, which was fitted to later models. Unfortunately I don't know the change-over date. They have different components and can have different faults.

The CIS has a cold start injector fitted into the intake manifold.

Bill.

sergitin32 · Post by **sergitin32** » 12 Feb 2007, 00:57

my friend has the car documents, as soon as we can meet we will sort out by the engine designation which type of engine is this we have on our hands...
will let you know, thanx alot anyway.

sergitin32 · Post by **sergitin32** » 12 Feb 2007, 23:21

the engine type is a B21A nor B23A, 1983 bought in Canada... so the fuel system it has is the ZS 175-CD2-SE.

and my question is related to: when the air intake way goes into the carburetor just before the venture, from the back of this huge black plastic piece come two hose into there, what are these related to?

I want to make clear one hose was already attached (the closer to the blok) and the other place was empty... like without the hose.

Then there was a hose loose in the area, it fitted in the tube, but it was a little too short. and it came from some other device, forgive my ignorance, it ooks like a filter or valve or sensor, cuz it has two electric cables attached. This device was upon the fender and just the side of the battery closer to the driver. lets say there is a hose that goes actually behind the batery, then there is THIS device i am trying to describe, then from that device comes out other 2 one keeps going same direction and the other is perpendicular forming a T shape, the one perpendicular to the longitudinal line was loose... so we just attached to the empty tube, cuz there was no other place to put it.

it was pouring gas into the air intake, and of course some to the engine which of course in a over rich and would say totall wet mix would flood and not start again till some time later switching on and waiting.

I can also mention here that the metalic tube intended to bring the hot air from the exhaust system to the admition was totally f...ed seams like some rquarrel or mouse eat big piece of it, so it has a big hole... dunno if this says something.

thanks for been so patient trying to understand this nonsence...
have a nice day!

Post by **billofdurham** » 13 Feb 2007, 11:39

this is a continuous fuel inection engine,

This is not a fuel injected system. The ZS 175 CD 2SE is a Zenith Stromberg carburettor.

Regarding the loose hose that you connected to the intake. Does fuel actually flow through this hose?

I am still trying to find a diagram of the carburettor engine and all its components. Please bear with me as it may take some time.

Bill.

sergitin32 · Post by **sergitin32** » 17 Feb 2007, 20:29

we figured out from the vin number and this is official!!!

VOLVO (1983),
MODEL 244,
ENGINEB21A
SOLEX (uk made) 175cd carburetor.
Automatic transmition.
green...
mecanical seat belts.

thanx alot for the help... we took the carburator off, open it in pieces and found the valve for the fuel to come into the chamber was stucked open, so the chamber came totally full, even puttin fuel through the warm start hose to the warm start valve and this been closed, up to the next hose and
into the air mainfold!!! one thing we know is the pump is doing well!!! ejejeje

as soo as cleaned the valve and it worked properly we put everything back on its place and the car started without any problem, its true this are very trustable cars! and no so complicated, at least not this one fuel system.

one thing remains as a doubt yet and maybe you can answer this one... in the air filter box, there is this cap that closes the outside air income hose and can flip in a way that closes the engine recycled gases intake, but i dont know how does it work? seams to me its only closing the real oxigen intake engine? was weird cuz there was no way to make it tide to nothing that takes care to move it form one way to the other or leave it in the middle!!! maybe vacuming wold do this? dont think so thou!!!

hope you undrstand this... this all happening in the plastic box which has the air filter inside... just besides the radiator. 4 hoses attached... one coming fro the left with air incoming form the fornt of the car, one with the recycle gases coming from the exaust this comes lower fro the right... one going out to the back and low part to the mainfold, and one upper coming from the engine too, maybe for vacuming, dunno...
thanx for everything, lots!
have the best times ever.
sergitin

Post by **billofdurham** » 18 Feb 2007, 12:29

Good to hear you found the problem. However, the 175CD2SE carb was made by Zenith-Stromberg. The only other point on the carb itself is to keep the oil in the dashpot (top of the carb) at the right level.

in the air filter box, there is this cap that closes the outside air income hose and can flip in a way that closes the engine recycled gases intake, but i dont know how does it work

This opens and closes as the engine warms and cools. It is designed to introduce warm air to the carb as much as possible. Sometimes the thermostat in the filter housing does stick but it is not common.

Good luck with your 'new' car. Mine was a pleasure to drive.

Bill.

sergitin32 · Post by **sergitin32** » 19 Feb 2007, 20:46

thanx alot, i am already loving it, thou still missing some work and tlc...

one thing i need to do a.s.a.p is to make it ready for the air care test.

last time it failed was almost 3 years before... and only failed for the NOx results, the rest were actually really lower than the stardards for this car...

some body told me making it work with cold air would be better for the NOx emittions? is this true? cuz if it is, i might close the valve system and put it only for the outer air instead the preheated one!

also what kind of chamber cleaner and method should i use so it puts out the possible carbon residuals inside the chamber?

what other advices you got for me about air care in general or NOx emitions in particular... hope i am not been to anoying here...

have a great day, i think volvos are great! already love mine...
bye
sergitin...

Post by **billofdurham** » 20 Feb 2007, 12:27

NOx emissions are directly related to high combustion temperatures but lowering the temperature of the intake air may not necessarily affect the combustion temp.

Better to check that the fuel/air mixture is not too lean and that the ignition timing is correct. You can buy carburettor spray cleaners at most parts shops and you can get a combustion chamber cleaner. I don't know what is available where you are but you should be able to find one that is suitable. Never be afraid to ask for advice in the shop.

One more thing you can do is to give the car a long run on the open road. This will also help to clean out some of the carbon which will have built up over the years.

... hope i am not been to anoying here...

Not at all, I like a challenge.

Bill.

sergitin32 · Post by **sergitin32** » 21 Feb 2007, 16:06

Hi there, I dunno if I've mentioned before my volvo was parking for over almost 3 years last time... so all the fluids might had been like lazzy and filthy, nop? so about changing them i have several questions...

the manual says several of the original fluids used in this cars, and also says they might have upgrade ones as the time passes...

Brake Fluid type: DOT 4 heavy duty break fluid

Automatic Trasmition Fluid type: DEXTRON II D or E (NOTE: except 1982-83 Aisin Warner 70-71 trasmition were filled with automatic trasmition fluid type F, don't add DEXTRON II to these ones.)

Differential lubricant type: API GL-5 SAE 90 hypoid gear oil.

Coolant type: 50/50 mixture of ethylene glycol-based antifreeze and water.

questions:

1- upgrades for these types of fluids now days.
2-can they be mixed in the same recipent or should i empty it first and add the new one?
3- been mine an 83 model, i can know the trasmition code from the VIN code, but from there to know if it is an Aisin Warner 70 or 71, hmmm maybe googling?
4- Any coolant fluid even the new ones i can add water without problems? Well, in the country I come from we used mostly water all the time and it was ok there... Cuba is a hot country thou... so no antifreeze stuff or nothing... here vancouver isn't that cold but some timed lower zero celciums.

5-little off topic: we already did one oil change before started the car after all this time sitting... and change the oil filter as well... should we change oil one more time now i got it runing for a while, so meyba some grabish on the system has flown down to the colector? and should i do with the oil warm so it runs well out?

hey Bill, I really apreciate your help to all of us rookies in this forum who love volvos!!! mine got some wash and wax right from my hands yesterday and she looks a clasic... thou some dents and rust spots I think I'll workout later this year... right now just thinking how to aproach aircare and insurance so i can get her out of this prission-garage... this is one of the causes why i can give her a good run on the highway to get reed of the carbon sediments... but i will try doing all the cleaning and fluid changes and updates a.s.s.p. as well as the timing and get the best mix the possible.

thanx lots and have a nice time!
sergio.