'74 DSMA Carb Problem

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Adam

'74 DSMA Carb Problem

Post by Adam »

Help... I broke a piece that has two vacume tubes, one tube goes from the intake manifold to this vacume switch and the other goes from the switch to the carb. I'll try to get a pic next week.

I think the piece is an idle control, can someone confirm and where do I find one? Once the carb is back on the intake, this piece is barried underneath everything.

Thanks,

Adam
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manoa matt
Posts: 3442
Joined: Thu Oct 26, 2006 4:28 pm
Your car is a: 1978 Fiat 124 Spider 1800
Location: Honolulu, Hawaii

Re: '74 DSMA Carb Problem

Post by manoa matt »

Are you talking about the small cast pot metal fitting with two small diameter vertical tubes, that is located on the top of the intake manifold between the carb and the cam tower? That is the EGR thermovalve. I have one, but a picture will help positively identify the part in question.
Adam

Re: '74 DSMA Carb Problem

Post by Adam »

Hey Matt,

Can you send me a pic
a_lavergne@primus.ca

Thanks,

Adam
Adam

Re: '74 DSMA Carb Problem

Post by Adam »

Spoke with the mechanic doing the work, apparently it's the fast idle switch?
User avatar
manoa matt
Posts: 3442
Joined: Thu Oct 26, 2006 4:28 pm
Your car is a: 1978 Fiat 124 Spider 1800
Location: Honolulu, Hawaii

Re: '74 DSMA Carb Problem

Post by manoa matt »

Adam,

Here is a picture of the EGR thermovalve that is mounted to the intake manifold: http://www.flickr.com/photos/bigtimes_fiat/3429929749/

The fast idle electrovalve is a cream colored plastic thing mounted near the firewall or on the driver's side fender. It has a hose going in and a hose comming out, and two electrical connections. There is also a black buttion that tests the system that should be mounted near the electrovalve.
Adam

Re: '74 DSMA Carb Problem

Post by Adam »

Thanks for the pics. It is the broken piece is the egr thermovalve. We have since disconnected it.

Adam
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