1979 Vent hose connections??

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maxdog
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Your car is a: 1979 spyder 124
Location: Montreal Quebec Canada

1979 Vent hose connections??

Post by maxdog »

I'm posting this again because I think my original post was " lost " in an older thread.
My 1979 2000 has been completely desmogged by a previous owner . There is a grey thing mounted inacceibly above the fuel pump which I suppose is the crank case vent valve At present the discharge vents to the side of the engine . Should it be connected to the carb inlet ?? There is a much smaller hole[ 1/2 inch ] in the lunch box filter , between the filter and the carb throat which should be a sensible place for the crank case vent to connect to . ??
Is this OK ?
Why is the vent valve so big ??
Do I need a flame trap ??
Can I replace the whole lot with a simple N American PCV valve ?
All the schematics I have found are vague about what goes where
Maxdog
maxdog
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Your car is a: 1979 spyder 124
Location: Montreal Quebec Canada

Re: 1979 Vent hose connections, The Great Mystery ??

Post by maxdog »

No one knows how the crankcase vent is supposed to be connected ???
Maxdog :roll: :roll:
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RRoller123
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Your car is a: 1980 FI SPIDER 2000
Location: SAGAMORE BEACH, MA USA

Re: 1979 Vent hose connections??

Post by RRoller123 »

On the FI it goes up to just in front of the throttle plate, so I would expect that same sort of arrangement is made with the carb'ed version?
'80 FI Spider 2000
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aj81spider
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Your car is a: 1974 Fiat 124 Spider
Location: Chelmsford, MA

Re: 1979 Vent hose connections??

Post by aj81spider »

On my car (74) the crankcase vent is connected via a fairly large hose with a flame trap to the air filter. The stock air filter has a fitting that the hose slides over.
A.J.

1974 Fiat 124 Spider
2006 Corvette
1981 Spider 2000 (sold 2013 - never should have sold that car)
maxdog
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Posts: 126
Joined: Thu Jul 07, 2016 11:27 pm
Your car is a: 1979 spyder 124
Location: Montreal Quebec Canada

Re: 1979 Vent hose connections??

Post by maxdog »

Thanks
I will connect to the air filter housing .
Downstream of the filter and upstream of the throttles seems a sensible place . It's certainly better than venting to atmosphere .
Maxdog
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