Follow up DFEV question

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Amendonsa

Follow up DFEV question

Post by Amendonsa »

First, thank you to all who replied to my previous post. While getting it to cap the vacuum line as suggested, I found the following. Can anyone tell me if I am correct that these are the carb jets. Shouldn't they both be flush? The one on the drivers side of the carb was loose, and even when fully hand tight, still sticks out and does not seem secure. Is this normal? Thanks all.

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mattyd7
Posts: 65
Joined: Wed Aug 05, 2015 10:39 am
Your car is a: 1979 Fiat Spider
Location: Nashua, NH

Re: Follow up DFEV question

Post by mattyd7 »

Yes, those should be Primary and Secondary Idling Jets. The "60" should be referring to 0.60mm jet.

Mine were not screwed in flush, but they were tight when I got them from Redline. Reading through some carb rebuild guides it just says to tighten them, so I'd hit them with your screwdriver.

You can get the explosion view of the carb here: http://www.racetep.com/webdiag.html

That has all the parts labeled, so you can see those screws should be part number "15" and the jets under them are "14" and "14a".
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70spider
Posts: 676
Joined: Fri Mar 14, 2014 3:05 pm
Your car is a: 1970 Fiat spider
Location: N.E. New Mexico

Re: Follow up DFEV question

Post by 70spider »

Yes, those should be Primary and Secondary Idling Jets. The "60" should be referring to 0.60mm jet.
I am running a 1438 with a 1800 intake and the 60 primary idle jet is to rich so I switched to a 47.5 and left the secondary at 50. I did this on the advice of Brad Artigue and it worked pretty well, however I was still running rich so I changed up the main and air jets. This is my set up: Idle: P=47.5 S=50, Mains: P=130 S=150, AC P=160 S=180. It runs real smooth and has no hesitation through all rpms and my exhaust doesn't smell like fuel :wink: .
1970 Fiat Spider 124 Sport aka "Pesto"
2002 Mazda Protege5
2013 Buddy 170i
Amendonsa

Re: Follow up DFEV question

Post by Amendonsa »

Thank you both. I found some old parts explosion diagrams for the carb, but for carb noobs like me, labeling something "screw" wasn't particularly helpful.

I appreciate the feedback.

Thanks again.

Andrew
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