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Old 04-24-2008, 07:35 AM
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Smile air filter set up?

Hi all.
I will be back on the road soon with my 33 after geting a fair bit of general maintainence done. My air filter set up seems strange, i have like a square box coming out the bottom of the air filter box just beside the alternator, the cold air intake tube is missing therefore no cold air is getting into my air filter box. The 2 little elbows at each side on top of the air box have no hoses connected to them and one is blocked off with a little plastic cap. I need to get this all sorted out as i want to get my car working to its best after spending all this money on her. I know these questions have probably been asked before but i am desperate for advice on my final stage of getting the cold air to get into the airbox. My mechanic reckons because i am getting hot air into my airbox it is causing my spark plugs to foul up and burn oil. I know all i need is soon tubing to go from the square box to beside the passenger side headlight behind the grill to get cold air into the airbox, where do i get this tube and is it a special kind of material? but what about the 2 elbows on top of the air filter lid, are they supposed to be blocked off or i noticed on most pictures that they have hoses coming from them and they disappear behind the engine, where do they connect 2???????????

Please help me finish the job off properly!!!!
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Old 04-24-2008, 10:40 AM
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Οκ , as for the intake tube you can use something similar as mine..





It is found very easy in industrial products , there are ventilation tubes and it wotks ok.

As far for the filter form inside this mught help you. it is a video of my sprint with the airbox open.
YouTube - Alfasud Sprint Engine Sound

If you can just post some pictures of your engine so that we cabn understand your problem.
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Old 04-24-2008, 08:02 PM
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Hi, I will post pictures of the engine bay on monday as i dont have any saved on my computer.
What shop would i get a tube like that?
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Old 04-24-2008, 09:40 PM
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I found a couple of universal air induction kits on ebay, does anyone know if they would fit???

This is the description for the bottom kit :

YOU ARE BIDDING an Universal Cold air SET UP system

3 inch Soft TUBE + 2 of Mounting Clamp + 2 x Cold air Intake Tip

WILL FIT on ANY any CAR

Great ITEM to HELP you air filter To GET COLD YEAR

Get cold air = get more power.
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Old 04-24-2008, 10:48 PM
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Quote:
Originally Posted by darkcue33 View Post
Hi all.
I will be back on the road soon with my 33 after geting a fair bit of general maintainence done. My air filter set up seems strange, i have like a square box coming out the bottom of the air filter box just beside the alternator, the cold air intake tube is missing therefore no cold air is getting into my air filter box.
this is normal - it is just missing the tubing.. its a pain to fit another tube though as the attachment is square shape
Quote:
The 2 little elbows at each side on top of the air box have no hoses connected to them and one is blocked off with a little plastic cap. I need to get this all sorted out as i want to get my car working to its best after spending all this money on her. I know these questions have probably been asked before but i am desperate for advice on my final stage of getting the cold air to get into the airbox.
the elbows are supposed to have a pipe on each running to a plastic collector at the bottom/back of the airbox near the oil filler neck... its designed to feed oil vapour from the engine upto the elbow - then into the carbs and through - part pollution control.. on my car there were no plastic ends in the elbows but a metal insert that screws in - the tube attaches to this... you could change this and run some sort of catch can arrangement instead (although technically this might get u defected)
Quote:
My mechanic reckons because i am getting hot air into my airbox it is causing my spark plugs to foul up and burn oil.
that doesnt sound logical. have you got the right plugs in? try ngk 6 instead of 7's that might help with the fouling... either that or the carbs are not tuned right. my car ran fine for years without a direct cold air feed - as do many older carbd cars
Quote:
I know all i need is soon tubing to go from the square box to beside the passenger side headlight behind the grill to get cold air into the airbox, where do i get this tube and is it a special kind of material?
nothing special just go to a place like clark rubber or similair. depending on the size of pipe it should cost about 20$
Quote:
but what about the 2 elbows on top of the air filter lid, are they supposed to be blocked off or i noticed on most pictures that they have hoses coming from them and they disappear behind the engine, where do they connect 2???????????
they are part of the emmisions crap that came on allot of the cars. from memory they fed vapour from a carbon canister...dont worry about them - plug them up - cork will work if u cant get the rubber inserts. once you've done that it wont be sucking in unfiltered air !

Quote:
Please help me finish the job off properly!!!!
sounds like your almost there...does your mechanic know alfa's?
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Old 04-24-2008, 10:59 PM
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Hi
Yes he knows alfa's, he used to race sud,s and specializes in webers. All he said that hot air going in instead of cold might cause a fouling plugs, i am using golden lodge 25hl plugs.
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Old 04-24-2008, 11:09 PM
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Quote:
Originally Posted by darkcue33 View Post
Hi
Yes he knows alfa's, he used to race sud,s and specializes in webers. All he said that hot air going in instead of cold might cause a fouling plugs, i am using golden lodge 25hl plugs.
ok well ditch the lodges and get some NGK BP6ES and you wont have anywhere near the same amount of fouling - solved my fouling problems
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Old 04-25-2008, 04:11 AM
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Darkcue33, I run no fiters at present, nor cold intake, no issues fowling, maybe idle mixture. I noticed you are in Perth, me too. Just about to join WA sporting car club to race my 33. Not an expert but served my apprentiship at Alfa/Fiat dealers before changing careers if you need a hand; let me know.
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Old 04-27-2008, 08:44 PM
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Whats the difference between bp6es and bpr6es? I checked the ngk website and the aussie site said use bp7es and the Uk site said use b7es......what is the difference between all these??
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Old 04-27-2008, 09:56 PM
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R plugs

The R stands for resistor:

FAQs - Spark Plugs

Q: When should I use a resistor spark plug?

A: NGK "R" or resistor spark plugs use a 5k ohm ceramic resistor in the spark plug to suppress ignition noise generated during sparking.

NGK strongly recommends using resistor spark plugs in any vehicle that uses on-board computer systems to monitor or control engine performance. This is because resistor spark plugs reduce electromagnetic interference with on-board electronics.

They are also recommended on any vehicle that has other on-board electronic systems such as engine-management computers, two-way radios, GPS systems, depth finders or whenever recommended by the manufacturer.

In fact, using a non-resistor plug in certain applications can actually cause the engine to suffer undesirable side effects such as an erratic idle, high-rpm misfire, engine run-on, power drop off at certain rpm levels and abnormal combustion.
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Old 04-27-2008, 10:14 PM
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Thanks 33gold, so what spark plug do you use or recommend using? I take it the 33 doesnt require resistor plugs?
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Old 04-28-2008, 01:09 AM
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We used to use the Original Equipment Golden Lodge's in the UK in the late 80's. The current 1.5 in my 33 is running those too. I wouldn't be looking at plugs as the reason for fouling unless you have modified your engine, as others say incorrect mixture on one of the carbies is likely to be the cause. When the rebuilt 1.7 goes in next month I may have to rethink this as I'm aiming to run about 10.5:1 compression, so my reckoning is that it will get hotter. Remember that Italy gets pretty hot too so original spec's are valid in Aus.
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Old 04-28-2008, 04:08 AM
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the main difference is the heat rating - sixes run hotter and will reduce the likelihood of fouling... if you mainly do city driving then 6 will run better than the colder lodges - then agian if your carbs are set wrong then thats a moot point. lodges are overpriced plugs from 20 years ago... why use a 20 year old plug design when there are better alternatives... still some people swear by them - my expereince on my rebuild was that the ngk's ran better
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Old 04-28-2008, 10:27 PM
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Hi
I got my 33 back today all work has been done and i managed to take some pics of the engine bay.
I need to get some opinions and advice on how to get the cold air into the air filter box.

Cheers.
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Old 04-30-2008, 03:15 AM
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I was thinking that the piece with the flaps in it just pulls off, you can see the square section it fits into, now when i pull it off you still have that big plastic piece that comes from the bottom of the airbox, up and over the air con unit, does that whole piece come away and then i can run some flexi hose from the bottom of the airbox to behind the grill beside the passenger side headlight, just like the pic GREEK posted above!
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