WTF is this? - F-Body Road Racing and Autocross Forums

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My car developed a fuel-starve issue at an autocross about a month ago. It had never done it before, but even with a full tank, it would fuel starve coming out of hard turns. On the street, in a straight line, nothing.

I took it to a shop that's really familiar with F-Bodies (although maybe not a lot of thirdgens pass through), and they dropped the tank and found this inside the tank. Basically one hose was going from this widget to the fuel pump, and another hose was coming out the other end. It wasn't secure in the tank, and they suspect that it would flop around interrupting the flow of fuel. They have no idea what it is, so they replaced the hose/widget/hose combination with just a single hose. I just picked the car up yesterday so I haven't autocrossed it to see if it's fixed.

The car was originally carb'ed but has a later TPI L98 in it now. Although it has an extensive autocross history, I'm not sure how much bastardization has gone on with it over the years. (IMG:http://www.frrax.com/rrforum/style_emoticons/default/smile.gif)

Pat

patred View Member Profile	May 5 2011, 11:45 PM Post #1
Zero brand loyalty Group: Advanced Members Posts: 645 Joined: 22-January 04 From: Merryland Member No.: 145	(IMG:http://farm6.static.flickr.com/5267/5691313193_82c9deeacf.jpg) (IMG:http://farm6.static.flickr.com/5149/5691885860_c4e42e4dee.jpg) My car developed a fuel-starve issue at an autocross about a month ago. It had never done it before, but even with a full tank, it would fuel starve coming out of hard turns. On the street, in a straight line, nothing. I took it to a shop that's really familiar with F-Bodies (although maybe not a lot of thirdgens pass through), and they dropped the tank and found this inside the tank. Basically one hose was going from this widget to the fuel pump, and another hose was coming out the other end. It wasn't secure in the tank, and they suspect that it would flop around interrupting the flow of fuel. They have no idea what it is, so they replaced the hose/widget/hose combination with just a single hose. I just picked the car up yesterday so I haven't autocrossed it to see if it's fixed. The car was originally carb'ed but has a later TPI L98 in it now. Although it has an extensive autocross history, I'm not sure how much bastardization has gone on with it over the years. (IMG:http://www.frrax.com/rrforum/style_emoticons/default/smile.gif) Pat

Ojustracing View Member Profile	May 6 2011, 12:49 AM Post #2
Advanced Member Group: Advanced Members Posts: 919 Joined: 30-December 03 From: Northern NY Member No.: 66	Its called a fuel pump damper. It goes between the fuel pump and the sending unit. I never liked this setup, seems loose like it might leak, but in 25 yr only had one leak. I have installed hose in place and never an issue. Which hose clamps did they use? Regular worm clamps? John

patred View Member Profile	May 6 2011, 12:06 PM Post #3
Zero brand loyalty Group: Advanced Members Posts: 645 Joined: 22-January 04 From: Merryland Member No.: 145	QUOTE (Ojustracing @ May 5 2011, 08:49 PM) Which hose clamps did they use? Regular worm clamps? I don't know. Are there hose clamps that should be avoided? Pat